https://www.mongodb.com/docs/manual/reference/method/sh.help/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
sh.help()
<a class="headerlink leafygreen-ui-1kepx47" href="#sh.help--" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="sh.help--">
</div>
</a>
</h1>
<dl class="method">
<dt>
<code class="leafygreen-ui-1l06pbn">
sh.help()
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-method-sh.help" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-method-sh.help">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Returns help text for
<a class="leafygreen-ui-tqgtui" href="/docs/manual/sharding/#std-label-sharding-introduction">
sharding
</a>
related
shell functions.
</p>
</dd>
</dl>
</section>
|
https://www.mongodb.com/docs/manual/release-notes/6.0-downgrade-sharded-cluster/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Downgrade
<!-- -->
6.0
<!-- -->
Sharded Cluster to
<!-- -->
5.0
<a class="headerlink leafygreen-ui-1kepx47" href="#downgrade-newversion-sharded-cluster-to-oldversion" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="downgrade-newversion-sharded-cluster-to-oldversion">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#downgrade-path" target="_self">
<span>
Downgrade Path
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#prerequisites" target="_self">
<span>
Prerequisites
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#downgrade-procedure" target="_self">
<span>
Downgrade Procedure
</span>
</a>
</li>
</ul>
</div>
<p class="leafygreen-ui-1kp3ins">
Before you attempt a downgrade, familiarize yourself with the content
in this page.
</p>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Downgrade Path
<a class="headerlink leafygreen-ui-1kepx47" href="#downgrade-path" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="downgrade-path">
</div>
</a>
</h2>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Before you upgrade or downgrade a sharded cluster, ensure all sharded
cluster members are running. If you do not, the upgrade or downgrade
will not complete until all members are started.
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
If you need to downgrade from
<!-- -->
6.0
<!-- -->
, downgrade to the latest
patch release of
<!-- -->
5.0
<!-- -->
.
</p>
<p class="leafygreen-ui-1kp3ins">
MongoDB only supports single-version downgrades. You cannot downgrade to a
release that is multiple versions behind your current release.
</p>
<p class="leafygreen-ui-1kp3ins">
For example, you may downgrade a
<!-- -->
6.0-series
<!-- -->
to a
<!-- -->
5.0-series
<!-- -->
deployment.
However, further downgrading that
<!-- -->
5.0-series
<!-- -->
deployment to a
<!-- -->
4.4-series
<!-- -->
deployment is not supported.
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Prerequisites
<a class="headerlink leafygreen-ui-1kepx47" href="#prerequisites" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="prerequisites">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
Before you begin the downgrade procedure, you must complete the following
prerequisite steps.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"HowTo","steps":[{"@type":"HowToStep","text":"Optional but Recommended. Create a backup of your database.To learn how to create a backup, see Backup Methods for a Self-Managed Deployment.","name":"Create Backup"},{"@type":"HowToStep","text":"To downgrade from 6.0 to 5.0, you must remove\n6.0 features that are incompatible with 5.0. For a\nlist of incompatible features and how to remove them, see\nDowngrade Considerations.","name":"Remove Backward-Incompatible Features"},{"@type":"HowToStep","text":"Ensure that any resharding operations have\nsuccessfully completed. If a recent resharding operation has failed due\nto a primary failover, you must first run the\ncleanupReshardCollection command before downgrading the\nfeatureCompatibilityVersion of your sharded cluster.If a resharding operation is still running while you downgrade the\nfeatureCompatibilityVersion of your sharded cluster, the resharding\noperation will not complete.mongos instance","name":"Ensure No Resharding Operations are in Progress"},{"@type":"HowToStep","text":"To downgrade the fCV (feature compatibility version) of your\nsharded cluster:Ensure that no initial sync is in progress. Running the\nsetFeatureCompatibilityVersion command while an initial\nsync is in progress causes the initial sync to restart.Ensure that no nodes have a newlyAdded field in their\nreplica set configuration.\nRun the following command on each node in your replica set to\nverify this:The newlyAdded field only appears in a node's replica set\nconfiguration document during and shortly after an initial sync.Ensure that no replica set member is in the ROLLBACK or\nRECOVERING state.Use mongosh to connect to your mongos instance.Downgrade the featureCompatibilityVersion to \"5.0\".The setFeatureCompatibilityVersion command performs writes\nto an internal system collection and is idempotent. If the command does\nnot complete successfully, retry the command on the mongos instance.While setFeatureCompatibilityVersion is running on\nthe sharded cluster, chunk migrations, splits, and merges can\nfail with ConflictingOperationInProgress.If setFeatureCompatibilityVersion fails with a\nManualInterventionRequired error, and the cluster has\nrecently undergone a resharding operation that had failed due to\nan election, you must run the cleanupReshardCollection\ncommand before you attempt to run\nsetFeatureCompatibilityVersion again.To ensure that all members of the replica set have the updated\nfeatureCompatibilityVersion, connect to each replica set member\nand check the featureCompatibilityVersion:For a sharded cluster that has access control enabled, to run the\nadminCommand on a shard replica set member, you must connect\nto the member as a shard local user.All members should return a result that includes:If any member returns a featureCompatibilityVersion of \"6.0\",\nwait for the member to return version \"5.0\" before proceeding.For more information on the returned featureCompatibilityVersion\nvalue, see Get FeatureCompatibilityVersion.any mongod / mongos instance","name":"Downgrade Feature Compatibility Version (fCV)"}],"name":"Prerequisites","image":"https://webimages.mongodb.com/_com_assets/cms/kuyj2focmkbxv7gh3-stacked_default_slate_blue.svg?auto=format%252Ccompress"}
</script>
<div class="css-4nyere eccljxs0">
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
1
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Create Backup
<a class="headerlink leafygreen-ui-1kepx47" href="#create-backup" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="create-backup">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
<em>
Optional but Recommended.
</em>
Create a backup of your database.
</p>
<p class="leafygreen-ui-1kp3ins">
To learn how to create a backup, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/backups/#std-label-backup-methods">
Backup Methods for a Self-Managed Deployment
<!-- -->
.
</a>
</p>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
2
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Remove Backward-Incompatible Features
<a class="headerlink leafygreen-ui-1kepx47" href="#remove-backward-incompatible-features" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="remove-backward-incompatible-features">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
To downgrade from
<!-- -->
6.0
<!-- -->
to
<!-- -->
5.0
<!-- -->
, you must remove
<!-- -->
6.0
<!-- -->
features that are incompatible with
<!-- -->
5.0
<!-- -->
. For a
list of incompatible features and how to remove them, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/release-notes/6.0-compatibility/#std-label-6.0-downgrade-considerations">
Downgrade Considerations
<!-- -->
.
</a>
</p>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
3
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Ensure No Resharding Operations are in Progress
<a class="headerlink leafygreen-ui-1kepx47" href="#ensure-no-resharding-operations-are-in-progress" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="ensure-no-resharding-operations-are-in-progress">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Ensure that any
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/sharding-reshard-a-collection/#std-label-sharding-resharding">
resharding operations
</a>
have
successfully completed. If a recent resharding operation has failed due
to a primary failover, you must first run the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/cleanupReshardCollection/#mongodb-dbcommand-dbcmd.cleanupReshardCollection">
<code class="leafygreen-ui-1l06pbn">
cleanupReshardCollection
</code>
</a>
command before downgrading the
<code class="leafygreen-ui-1l06pbn">
featureCompatibilityVersion
</code>
of your sharded cluster.
</p>
<p class="leafygreen-ui-1kp3ins">
If a resharding operation is still running while you downgrade the
<code class="leafygreen-ui-1l06pbn">
featureCompatibilityVersion
</code>
of your sharded cluster, the resharding
operation will not complete.
</p>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
4
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Downgrade Feature Compatibility Version (fCV)
<a class="headerlink leafygreen-ui-1kepx47" href="#downgrade-feature-compatibility-version--fcv-" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="downgrade-feature-compatibility-version--fcv-">
</div>
</a>
</h3>
<span class="leafygreen-ui-1qnjd6d" id="std-label-5.0-downgrade-feature-compatibility-sharded-cluster">
</span>
<p class="leafygreen-ui-1kp3ins">
To downgrade the
<span class="leafygreen-ui-vm4wms" tabindex="0">
fCV
</span>
of your
sharded cluster:
</p>
<ol class="leafygreen-ui-rioki0" type="a">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Ensure that no initial sync is in progress. Running the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/setFeatureCompatibilityVersion/#mongodb-dbcommand-dbcmd.setFeatureCompatibilityVersion">
<code class="leafygreen-ui-1l06pbn">
setFeatureCompatibilityVersion
</code>
</a>
command while an initial
sync is in progress causes the initial sync to restart.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Ensure that no nodes have a
<code class="leafygreen-ui-1l06pbn">
newlyAdded
</code>
field in their
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-configuration/">
replica set configuration
</a>
.
Run the following command on each node in your replica set to
verify this:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"use local\ndb.system.replset.find( { \"members.newlyAdded\" : { $exists : true } } );","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">use local</td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">system</span>.<span class="lg-highlight-property">replset</span>.<span class="lg-highlight-title lg-highlight-function">find</span>( <!-- -->{ <span class="lg-highlight-string">"members.newlyAdded"</span> <!-- -->: <!-- -->{ <!-- -->$exists<!-- --> <!-- -->: <span class="lg-highlight-literal">true</span> } } )<!-- -->;</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
newlyAdded
</code>
field only appears in a node's replica set
configuration document during and shortly after an initial sync.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Ensure that no replica set member is in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-states/#mongodb-replstate-replstate.ROLLBACK">
<code class="leafygreen-ui-1l06pbn">
ROLLBACK
</code>
</a>
or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-states/#mongodb-replstate-replstate.RECOVERING">
<code class="leafygreen-ui-1l06pbn">
RECOVERING
</code>
</a>
state.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Use
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
to connect to your
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instance
<!-- -->
.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Downgrade the
<code class="leafygreen-ui-1l06pbn">
featureCompatibilityVersion
</code>
to
<code class="leafygreen-ui-1l06pbn">
"5.0"
</code>
.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand( { setFeatureCompatibilityVersion: \"5.0\" } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>( <!-- -->{ <span class="lg-highlight-attr">setFeatureCompatibilityVersion</span>: <span class="lg-highlight-string">"5.0"</span> } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/setFeatureCompatibilityVersion/#mongodb-dbcommand-dbcmd.setFeatureCompatibilityVersion">
<code class="leafygreen-ui-1l06pbn">
setFeatureCompatibilityVersion
</code>
</a>
command performs writes
to an internal system collection and is idempotent. If the command does
not complete successfully, retry the command on the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instance
<!-- -->
.
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
Troubleshooting
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
While
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/setFeatureCompatibilityVersion/#mongodb-dbcommand-dbcmd.setFeatureCompatibilityVersion">
<code class="leafygreen-ui-1l06pbn">
setFeatureCompatibilityVersion
</code>
</a>
is running on
the sharded cluster, chunk migrations, splits, and merges can
fail with
<code class="leafygreen-ui-1l06pbn">
ConflictingOperationInProgress
</code>
.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
If
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/setFeatureCompatibilityVersion/#mongodb-dbcommand-dbcmd.setFeatureCompatibilityVersion">
<code class="leafygreen-ui-1l06pbn">
setFeatureCompatibilityVersion
</code>
</a>
fails with a
<code class="leafygreen-ui-1l06pbn">
ManualInterventionRequired
</code>
error, and the cluster has
recently undergone a resharding operation that had failed due to
an election, you must run the
<code class="leafygreen-ui-1l06pbn">
cleanupReshardCollection
</code>
command before you attempt to run
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/setFeatureCompatibilityVersion/#mongodb-dbcommand-dbcmd.setFeatureCompatibilityVersion">
<code class="leafygreen-ui-1l06pbn">
setFeatureCompatibilityVersion
</code>
</a>
again.
</p>
</li>
</ul>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
To ensure that all members of the replica set have the updated
<code class="leafygreen-ui-1l06pbn">
featureCompatibilityVersion
</code>
, connect to each replica set member
and check the
<code class="leafygreen-ui-1l06pbn">
featureCompatibilityVersion
</code>
:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand( { getParameter: 1, featureCompatibilityVersion: 1 } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>( <!-- -->{ <span class="lg-highlight-attr">getParameter</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-attr">featureCompatibilityVersion</span>: <span class="lg-highlight-number">1</span> } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
Access Control
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
For a sharded cluster that has access control enabled, to run the
<code class="leafygreen-ui-1l06pbn">
adminCommand
</code>
on a shard replica set member, you must connect
to the member as a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/security-users/#std-label-shard-local-users">
shard local user
<!-- -->
.
</a>
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
All members should return a result that includes:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"\"featureCompatibilityVersion\" : { \"version\" : \"5.0\" }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string">"featureCompatibilityVersion"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"version"</span> <!-- -->: <span class="lg-highlight-string">"5.0"</span> }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
If any member returns a
<code class="leafygreen-ui-1l06pbn">
featureCompatibilityVersion
</code>
of
<code class="leafygreen-ui-1l06pbn">
"6.0"
</code>
,
wait for the member to return version
<code class="leafygreen-ui-1l06pbn">
"5.0"
</code>
before proceeding.
</p>
</li>
</ol>
<p class="leafygreen-ui-1kp3ins">
For more information on the returned
<code class="leafygreen-ui-1l06pbn">
featureCompatibilityVersion
</code>
value, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/setFeatureCompatibilityVersion/#std-label-view-fcv">
Get FeatureCompatibilityVersion
<!-- -->
.
</a>
</p>
</section>
</div>
</div>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Downgrade Procedure
<a class="headerlink leafygreen-ui-1kepx47" href="#downgrade-procedure" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="downgrade-procedure">
</div>
</a>
</h2>
<div class="leafygreen-ui-1sjx7ru" role="note">
<h2 class="leafygreen-ui-29m78u">
Warning
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Before proceeding with the downgrade procedure, ensure that all
sharded cluster members, including delayed replica set members, have
the prerequisite changes. To do that, check the
<code class="leafygreen-ui-1l06pbn">
featureCompatibilityVersion
</code>
and the remove the incompatible
features for each node before downgrading.
</p>
</div>
</div>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"HowTo","steps":[{"@type":"HowToStep","text":"Using either a package manager or a manual download, get the latest\nrelease in the 5.0 series. If using a package manager, add a new\nrepository for the 5.0 binaries, then perform the actual downgrade\nprocess.Before you upgrade or downgrade a replica set, ensure all replica set\nmembers are running. If you do not, the upgrade or downgrade will not\ncomplete until all members are started.If you need to downgrade from 6.0, downgrade to the latest\npatch release of 5.0.","name":"Download the latest 5.0 binaries."},{"@type":"HowToStep","text":"Ensure that the 5.0 binaries are in your System PATH. To\nconfirm your binary version, run the following command:The command output should indicate a 5.0-series release.","name":"Replace the 6.0 binaries with the downloaded 5.0 binaries."},{"@type":"HowToStep","text":"To disable the balancer, connect mongosh to a\nmongos instance in the sharded cluster, and run the\nfollowing command:If a migration is in progress, MongoDB completes the in-progress\nmigration before stopping the balancer. To check the balancer's\ncurrent state, run sh.isBalancerRunning().To verify that the balancer is disabled, run the following\ncommand:sh.getBalancerState() returns false if the balancer\nis disabled.For more information on disabling the balancer, see\nDisable the Balancer.","name":"Disable the Balancer."},{"@type":"HowToStep","text":"To stop mongos, run the following command:Restart mongos with the 5.0 binary.","name":"Downgrade mongos."},{"@type":"HowToStep","text":"Downgrade the shard's secondary members, one at a time.Shut down the member.To shut down the mongod process, use\nmongosh to connect to the deployment\nand run the following command:Restart the member.To start a mongod process, run the following command:Wait for the member to enter the SECONDARY state.Before downgrading the next secondary, wait for the\nmember to recover to the SECONDARY state. To check\nthe member's state, use the rs.status()\nmethod in mongosh.Repeat the previous steps to downgrade each secondary member.Downgrade the shard arbiter, if any.Skip this step if the replica set does not include an\narbiter.Downgrade the arbiter member of the sharded\ncluster:Shut down the member.To shut down the arbiter, use\nmongosh to connect to the arbiter and run\nthe following command:Delete the contents of the arbiter data directory.To find the data directory of the arbiter\nmongod, check either the\nstorage.dbPath configuration setting or\n--dbpath command line option.Run the following command:Restart the arbiter.To start a mongod process, run the following command:Wait for the member to enter the ARBITER state.Before downgrading the primary, wait for the member\nto recover to the ARBITER state. To check the\nmember's state, use the rs.status() method\nin mongosh.Downgrade the shard primary.Step down the primary.In mongosh, use rs.stepDown()\nto step down the primary and start an election\nfor a new primary:Verify that the primary has stepped down.Run the following command:Verify that the primary has stepped down and another\nmember has assumed the PRIMARY state.Shut down the former primary member.To shut down the former primary, connect to the\ndeployment using mongosh and run the\nfollowing command:Restart the mongod with the 5.0 binary.To start a mongod process, run the following command:Repeat for the remaining shards.","name":"Downgrade each shard, one at a time."},{"@type":"HowToStep","text":"Downgrade the shard's secondary members of the config servers\nreplica set (CSRS) one at a time:Shut down the secondary.Connect to the secondary and run the following command:Restart the member.To start a mongod process, run the following command:Wait for the member to enter the SECONDARY state.Before downgrading the next secondary, wait for the\nmember to recover to the SECONDARY state. To check\nthe member's state, use the rs.status()\nmethod in mongosh.Repeat the previous steps to downgrade each secondary member.Downgrade the config server primary.Step down the primary.In mongosh, run rs.stepDown()\nto step down the primary and start an election\nfor a new primary:Verify that the primary has stepped down.Run the following command:Verify that the primary has stepped down and another\nmember has assumed the PRIMARY state.Shut down the former primary member.To shut down the former primary, connect to the\ndeployment using mongosh and run the\nfollowing command:Restart the mongod with the 5.0 binary.To start a mongod process, run the following command:","name":"Downgrade the config servers."},{"@type":"HowToStep","text":"After you downgrade all of the sharded cluster components, connect\nto a mongos and run the following command to\nre-enable the balancer:The sh.startBalancer() method also enables auto-splitting\nfor the sharded cluster.","name":"Re-enable the balancer."}],"name":"Downgrade Procedure","image":"https://webimages.mongodb.com/_com_assets/cms/kuyj2focmkbxv7gh3-stacked_default_slate_blue.svg?auto=format%252Ccompress"}
</script>
<div class="css-4nyere eccljxs0">
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
1
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Download the latest
<!-- -->
5.0
<!-- -->
binaries.
<a class="headerlink leafygreen-ui-1kepx47" href="#download-the-latest--binaries." title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="download-the-latest--binaries.">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Using either a package manager or a manual download, get the latest
release in the
<!-- -->
5.0
<!-- -->
series. If using a package manager, add a new
repository for the
<!-- -->
5.0
<!-- -->
binaries, then perform the actual downgrade
process.
</p>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Before you upgrade or downgrade a replica set, ensure all replica set
members are running. If you do not, the upgrade or downgrade will not
complete until all members are started.
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
If you need to downgrade from
<!-- -->
6.0
<!-- -->
, downgrade to the latest
patch release of
<!-- -->
5.0
<!-- -->
.
</p>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
2
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Replace the
<!-- -->
6.0
<!-- -->
binaries with the downloaded
<!-- -->
5.0
<!-- -->
binaries.
<a class="headerlink leafygreen-ui-1kepx47" href="#replace-the--binaries-with-the-downloaded--binaries." title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="replace-the--binaries-with-the-downloaded--binaries.">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Ensure that the
<!-- -->
5.0
<!-- -->
binaries are in your System PATH. To
confirm your binary version, run the following command:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"mongod --version","programmingLanguage":"Shell"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light shell leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">mongod --version</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The command output should indicate a 5.0-series release.
</p>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
3
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Disable the Balancer.
<a class="headerlink leafygreen-ui-1kepx47" href="#disable-the-balancer." title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="disable-the-balancer.">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
To disable the balancer, connect
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
to a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instance in the sharded cluster, and run the
following command:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"sh.stopBalancer()","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">sh.<span class="lg-highlight-title lg-highlight-function">stopBalancer</span>(<!-- -->)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
If a migration is in progress, MongoDB completes the in-progress
migration before stopping the balancer. To check the balancer's
current state, run
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/sh.isBalancerRunning/#mongodb-method-sh.isBalancerRunning">
<code class="leafygreen-ui-1l06pbn">
sh.isBalancerRunning()
</code>
.
</a>
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To verify that the balancer is disabled, run the following
command:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"sh.getBalancerState()","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">sh.<span class="lg-highlight-title lg-highlight-function">getBalancerState</span>(<!-- -->)</td></tr></tbody></table></code></pre>
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<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/sh.getBalancerState/#mongodb-method-sh.getBalancerState">
<code class="leafygreen-ui-1l06pbn">
sh.getBalancerState()
</code>
</a>
returns
<code class="leafygreen-ui-1l06pbn">
false
</code>
if the balancer
is disabled.
</p>
<p class="leafygreen-ui-1kp3ins">
For more information on disabling the balancer, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/manage-sharded-cluster-balancer/#std-label-sharding-balancing-disable-temporarily">
Disable the Balancer
<!-- -->
.
</a>
</p>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
4
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Downgrade
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
.
<a class="headerlink leafygreen-ui-1kepx47" href="#downgrade-mongos." title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="downgrade-mongos.">
</div>
</a>
</h3>
<ol class="leafygreen-ui-rioki0" type="a">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
To stop
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
, run the following command:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.shutdownServer()","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">shutdownServer</span>(<!-- -->)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Restart
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
with the
<!-- -->
5.0
<!-- -->
binary.
</p>
</li>
</ol>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
5
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Downgrade each shard, one at a time.
<a class="headerlink leafygreen-ui-1kepx47" href="#downgrade-each-shard--one-at-a-time." title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="downgrade-each-shard--one-at-a-time.">
</div>
</a>
</h3>
<ol class="leafygreen-ui-rioki0" type="a">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Downgrade the shard's secondary members, one at a time.
</p>
<ol class="leafygreen-ui-rioki0" type="i">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Shut down the member.
</p>
<p class="leafygreen-ui-1kp3ins">
To shut down the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
process, use
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
to connect to the deployment
and run the following command:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand( { shutdown: 1 } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>( <!-- -->{ <span class="lg-highlight-attr">shutdown</span>: <span class="lg-highlight-number">1</span> } )</td></tr></tbody></table></code></pre>
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<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Restart the member.
</p>
<p class="leafygreen-ui-1kp3ins">
To start a
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
process, run the following command:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"mongod --dbpath ","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">mongod <!-- -->-<!-- -->-<!-- -->dbpath <!-- --><<!-- -->/<!-- -->path<!-- -->-<!-- -->to<!-- -->-<!-- -->data<!-- -->-<!-- -->folder<!-- -->></td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Wait for the member to enter the
<code class="leafygreen-ui-1l06pbn">
SECONDARY
</code>
state.
</p>
<p class="leafygreen-ui-1kp3ins">
Before downgrading the next secondary, wait for the
member to recover to the
<code class="leafygreen-ui-1l06pbn">
SECONDARY
</code>
state. To check
the member's state, use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/rs.status/#mongodb-method-rs.status">
<code class="leafygreen-ui-1l06pbn">
rs.status()
</code>
</a>
method in
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
.
</span>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Repeat the previous steps to downgrade each secondary member.
</p>
</li>
</ol>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Downgrade the shard arbiter, if any.
</p>
<p class="leafygreen-ui-1kp3ins">
Skip this step if the replica set does not include an
arbiter.
</p>
<p class="leafygreen-ui-1kp3ins">
Downgrade the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/replica-set-arbiter/#std-label-replica-set-arbiter-configuration">
arbiter
</a>
member of the sharded
cluster:
</p>
<ol class="leafygreen-ui-rioki0" type="i">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Shut down the member.
</p>
<p class="leafygreen-ui-1kp3ins">
To shut down the arbiter, use
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
to connect to the arbiter and run
the following command:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand( { shutdown: 1 } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>( <!-- -->{ <span class="lg-highlight-attr">shutdown</span>: <span class="lg-highlight-number">1</span> } )</td></tr></tbody></table></code></pre>
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<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Delete the contents of the arbiter data directory.
</p>
<p class="leafygreen-ui-1kp3ins">
To find the data directory of the arbiter
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
, check either the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-storage.dbPath">
<code class="leafygreen-ui-1l06pbn">
storage.dbPath
</code>
</a>
configuration setting or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#std-option-mongod.--dbpath">
<code class="leafygreen-ui-1l06pbn">
--dbpath
</code>
</a>
command line option.
</p>
<p class="leafygreen-ui-1kp3ins">
Run the following command:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"rm -rf /path/to/mongodb/datafiles/*","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-built_in">rm</span> -rf <!-- -->/path/to/mongodb/datafiles<!-- -->/*</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Restart the arbiter.
</p>
<p class="leafygreen-ui-1kp3ins">
To start a
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
process, run the following command:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"mongod --dbpath ","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">mongod <!-- -->-<!-- -->-<!-- -->dbpath <!-- --><<!-- -->/<!-- -->path<!-- -->-<!-- -->to<!-- -->-<!-- -->mongodb<!-- -->-<!-- -->datafiles<!-- -->></td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Wait for the member to enter the
<code class="leafygreen-ui-1l06pbn">
ARBITER
</code>
state.
</p>
<p class="leafygreen-ui-1kp3ins">
Before downgrading the primary, wait for the member
to recover to the
<code class="leafygreen-ui-1l06pbn">
ARBITER
</code>
state. To check the
member's state, use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/rs.status/#mongodb-method-rs.status">
<code class="leafygreen-ui-1l06pbn">
rs.status()
</code>
</a>
method
in
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
.
</span>
</a>
</p>
</li>
</ol>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Downgrade the shard primary.
</p>
<ol class="leafygreen-ui-rioki0" type="i">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Step down the primary.
</p>
<p class="leafygreen-ui-1kp3ins">
In
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
, use
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/rs.stepDown/#mongodb-method-rs.stepDown">
<code class="leafygreen-ui-1l06pbn">
rs.stepDown()
</code>
</a>
to
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-step-down">
step down
</a>
the primary and start an election
for a new primary:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"rs.stepDown()","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">rs.<span class="lg-highlight-title lg-highlight-function">stepDown</span>(<!-- -->)</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Verify that the primary has stepped down.
</p>
<p class="leafygreen-ui-1kp3ins">
Run the following command:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"rs.status()"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light none leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">rs.status()</td></tr></tbody></table></code></pre>
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<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Verify that the primary has stepped down and another
member has assumed the
<code class="leafygreen-ui-1l06pbn">
PRIMARY
</code>
state.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Shut down the former primary member.
</p>
<p class="leafygreen-ui-1kp3ins">
To shut down the former primary, connect to the
deployment using
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
and run the
following command:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand( { shutdown: 1 } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>( <!-- -->{ <span class="lg-highlight-attr">shutdown</span>: <span class="lg-highlight-number">1</span> } )</td></tr></tbody></table></code></pre>
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Restart the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
with the
<!-- -->
5.0
<!-- -->
binary.
</p>
<p class="leafygreen-ui-1kp3ins">
To start a
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
process, run the following command:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"mongod --dbpath ","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">mongod <!-- -->-<!-- -->-<!-- -->dbpath <!-- --><<!-- -->/<!-- -->path<!-- -->-<!-- -->to<!-- -->-<!-- -->mongodb<!-- -->-<!-- -->datafiles<!-- -->></td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
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</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Repeat for the remaining shards.
</p>
</li>
</ol>
</li>
</ol>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
6
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Downgrade the config servers.
<a class="headerlink leafygreen-ui-1kepx47" href="#downgrade-the-config-servers." title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="downgrade-the-config-servers.">
</div>
</a>
</h3>
<ol class="leafygreen-ui-rioki0" type="a">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Downgrade the shard's secondary members of the config servers
replica set (CSRS) one at a time:
</p>
<ol class="leafygreen-ui-rioki0" type="i">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Shut down the secondary.
</p>
<p class="leafygreen-ui-1kp3ins">
Connect to the secondary and run the following command:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand( { shutdown: 1 } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>( <!-- -->{ <span class="lg-highlight-attr">shutdown</span>: <span class="lg-highlight-number">1</span> } )</td></tr></tbody></table></code></pre>
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</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Restart the member.
</p>
<p class="leafygreen-ui-1kp3ins">
To start a
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
process, run the following command:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"mongod --dbpath ","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">mongod <!-- -->-<!-- -->-<!-- -->dbpath <!-- --><<!-- -->/<!-- -->path<!-- -->-<!-- -->to<!-- -->-<!-- -->data<!-- -->-<!-- -->folder<!-- -->></td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Wait for the member to enter the
<code class="leafygreen-ui-1l06pbn">
SECONDARY
</code>
state.
</p>
<p class="leafygreen-ui-1kp3ins">
Before downgrading the next secondary, wait for the
member to recover to the
<code class="leafygreen-ui-1l06pbn">
SECONDARY
</code>
state. To check
the member's state, use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/rs.status/#mongodb-method-rs.status">
<code class="leafygreen-ui-1l06pbn">
rs.status()
</code>
</a>
method in
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
.
</span>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Repeat the previous steps to downgrade each secondary member.
</p>
</li>
</ol>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Downgrade the config server primary.
</p>
<ol class="leafygreen-ui-rioki0" type="i">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Step down the primary.
</p>
<p class="leafygreen-ui-1kp3ins">
In
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
, run
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/rs.stepDown/#mongodb-method-rs.stepDown">
<code class="leafygreen-ui-1l06pbn">
rs.stepDown()
</code>
</a>
to
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-step-down">
step down
</a>
the primary and start an election
for a new primary:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"rs.stepDown()","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">rs.<span class="lg-highlight-title lg-highlight-function">stepDown</span>(<!-- -->)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Verify that the primary has stepped down.
</p>
<p class="leafygreen-ui-1kp3ins">
Run the following command:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"rs.status()"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light none leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">rs.status()</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Verify that the primary has stepped down and another
member has assumed the
<code class="leafygreen-ui-1l06pbn">
PRIMARY
</code>
state.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Shut down the former primary member.
</p>
<p class="leafygreen-ui-1kp3ins">
To shut down the former primary, connect to the
deployment using
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
and run the
following command:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand( { shutdown: 1 } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>( <!-- -->{ <span class="lg-highlight-attr">shutdown</span>: <span class="lg-highlight-number">1</span> } )</td></tr></tbody></table></code></pre>
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Restart the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
with the
<!-- -->
5.0
<!-- -->
binary.
</p>
<p class="leafygreen-ui-1kp3ins">
To start a
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
process, run the following command:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"mongod --dbpath ","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">mongod <!-- -->-<!-- -->-<!-- -->dbpath <!-- --><<!-- -->/<!-- -->path<!-- -->-<!-- -->to<!-- -->-<!-- -->mongodb<!-- -->-<!-- -->datafiles<!-- -->></td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
</ol>
</li>
</ol>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
7
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Re-enable the balancer.
<a class="headerlink leafygreen-ui-1kepx47" href="#re-enable-the-balancer." title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="re-enable-the-balancer.">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
After you downgrade all of the sharded cluster components, connect
to a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
and run the following command to
re-enable the balancer:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"sh.startBalancer()","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">sh.<span class="lg-highlight-title lg-highlight-function">startBalancer</span>(<!-- -->)</td></tr></tbody></table></code></pre>
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/sh.startBalancer/#mongodb-method-sh.startBalancer">
<code class="leafygreen-ui-1l06pbn">
sh.startBalancer()
</code>
</a>
method also enables auto-splitting
for the sharded cluster.
</p>
</section>
</div>
</div>
</div>
</section>
</section>
|
https://www.mongodb.com/docs/manual/core/indexes/index-types/index-multikey/create-multikey-index-embedded/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Create an Index on an Embedded Field in an Array
<a class="headerlink leafygreen-ui-1kepx47" href="#create-an-index-on-an-embedded-field-in-an-array" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="create-an-index-on-an-embedded-field-in-an-array">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#about-this-task" target="_self">
<span>
About this Task
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#procedure" target="_self">
<span>
Procedure
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#results" target="_self">
<span>
Results
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#sort-results" target="_self">
<span>
Sort Results
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#learn-more" target="_self">
<span>
Learn More
</span>
</a>
</li>
</ul>
</div>
<p class="leafygreen-ui-1kp3ins">
You can create indexes on embedded document fields within arrays. These
indexes improve performance for queries on specific embedded fields that
appear in arrays. When you create an index on a field inside an array,
MongoDB stores that index as a multikey index.
</p>
<p class="leafygreen-ui-1kp3ins">
To create an index, use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.createIndex/#mongodb-method-db.collection.createIndex">
<code class="leafygreen-ui-1l06pbn">
db.collection.createIndex()
</code>
</a>
method. Your operation should resemble this prototype:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.<collection>.createIndex( { <field>: <sortorder> } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<!-- --><<!-- -->collection<!-- -->><!-- -->.<span class="lg-highlight-title lg-highlight-function">createIndex</span>( <!-- -->{ <<!-- -->field<!-- -->><!-- -->: <<!-- -->sortOrder<!-- -->> <!-- -->} )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
About this Task
<a class="headerlink leafygreen-ui-1kepx47" href="#about-this-task" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="about-this-task">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The example on this page uses an
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection that contains
these documents:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.inventory.insertMany( [\n {\n \"item\": \"t-shirt\",\n \"stock\": [\n {\n \"size\": \"small\",\n \"quantity\": 8\n },\n {\n \"size\": \"large\",\n \"quantity\": 10\n },\n ]\n },\n {\n \"item\": \"sweater\",\n \"stock\": [\n {\n \"size\": \"small\",\n \"quantity\": 4\n },\n {\n \"size\": \"large\",\n \"quantity\": 7\n },\n ]\n },\n {\n \"item\": \"vest\",\n \"stock\": [\n {\n \"size\": \"small\",\n \"quantity\": 6\n },\n {\n \"size\": \"large\",\n \"quantity\": 1\n }\n ]\n }\n] )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">inventory</span>.<span class="lg-highlight-title lg-highlight-function">insertMany</span>( <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"item"</span>: <span class="lg-highlight-string">"t-shirt"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"stock"</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"size"</span>: <span class="lg-highlight-string">"small"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"quantity"</span>: <span class="lg-highlight-number">8</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"size"</span>: <span class="lg-highlight-string">"large"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"quantity"</span>: <span class="lg-highlight-number">10</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"item"</span>: <span class="lg-highlight-string">"sweater"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"stock"</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"size"</span>: <span class="lg-highlight-string">"small"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"quantity"</span>: <span class="lg-highlight-number">4</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"size"</span>: <span class="lg-highlight-string">"large"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"quantity"</span>: <span class="lg-highlight-number">7</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"item"</span>: <span class="lg-highlight-string">"vest"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"stock"</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"size"</span>: <span class="lg-highlight-string">"small"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"quantity"</span>: <span class="lg-highlight-number">6</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"size"</span>: <span class="lg-highlight-string">"large"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"quantity"</span>: <span class="lg-highlight-number">1</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">] )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
You need to order more inventory any time you have less than five of an
item in stock. To find which items to reorder, you query for documents
where an element in the
<code class="leafygreen-ui-1l06pbn">
stock
</code>
array has a
<code class="leafygreen-ui-1l06pbn">
quantity
</code>
less than
<code class="leafygreen-ui-1l06pbn">
5
</code>
. To improve performance for this query, you can create an index on
the
<code class="leafygreen-ui-1l06pbn">
stock.quantity
</code>
field.
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Procedure
<a class="headerlink leafygreen-ui-1kepx47" href="#procedure" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="procedure">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The following operation creates an ascending multikey index on the
<code class="leafygreen-ui-1l06pbn">
stock.quantity
</code>
field of the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.inventory.createIndex( { \"stock.quantity\": 1 } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">inventory</span>.<span class="lg-highlight-title lg-highlight-function">createIndex</span>( <!-- -->{ <span class="lg-highlight-string">"stock.quantity"</span>: <span class="lg-highlight-number">1</span> } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Because
<code class="leafygreen-ui-1l06pbn">
stock
</code>
contains an array value, MongoDB stores this
index as a multikey index.
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Results
<a class="headerlink leafygreen-ui-1kepx47" href="#results" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="results">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The index contains a key for each individual value that appears in the
<code class="leafygreen-ui-1l06pbn">
stock.quantity
</code>
field. The index is ascending, meaning the keys are
stored in this order:
<code class="leafygreen-ui-1l06pbn">
[ 1, 4, 6, 7, 8, 10 ]
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
The index supports queries that select on the
<code class="leafygreen-ui-1l06pbn">
stock.quantity
</code>
field. For
example, the following query returns documents where at least one
element in the
<code class="leafygreen-ui-1l06pbn">
stock
</code>
array has a
<code class="leafygreen-ui-1l06pbn">
quantity
</code>
less than
<code class="leafygreen-ui-1l06pbn">
5
</code>
:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.inventory.find(\n {\n \"stock.quantity\": { $lt: 5 }\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">inventory</span>.<span class="lg-highlight-title lg-highlight-function">find</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"stock.quantity"</span>: <!-- -->{ <span class="lg-highlight-attr">$lt</span>: <span class="lg-highlight-number">5</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Output:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"[\n {\n _id: ObjectId(\"63449793b1fac2ee2e957ef3\"),\n item: 'vest',\n stock: [ { size: 'small', quantity: 6 }, { size: 'large', quantity: 1 } ]\n },\n {\n _id: ObjectId(\"63449793b1fac2ee2e957ef2\"),\n item: 'sweater',\n stock: [ { size: 'small', quantity: 4 }, { size: 'large', quantity: 7 } ]\n }\n]","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"63449793b1fac2ee2e957ef3"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">item</span>: <span class="lg-highlight-string">'vest'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">stock</span>: <!-- -->[ <!-- -->{ <span class="lg-highlight-attr">size</span>: <span class="lg-highlight-string">'small'</span>, <span class="lg-highlight-attr">quantity</span>: <span class="lg-highlight-number">6</span> }<!-- -->, <!-- -->{ <span class="lg-highlight-attr">size</span>: <span class="lg-highlight-string">'large'</span>, <span class="lg-highlight-attr">quantity</span>: <span class="lg-highlight-number">1</span> } ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"63449793b1fac2ee2e957ef2"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">item</span>: <span class="lg-highlight-string">'sweater'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">stock</span>: <!-- -->[ <!-- -->{ <span class="lg-highlight-attr">size</span>: <span class="lg-highlight-string">'small'</span>, <span class="lg-highlight-attr">quantity</span>: <span class="lg-highlight-number">4</span> }<!-- -->, <!-- -->{ <span class="lg-highlight-attr">size</span>: <span class="lg-highlight-string">'large'</span>, <span class="lg-highlight-attr">quantity</span>: <span class="lg-highlight-number">7</span> } ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">]</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Sort Results
<a class="headerlink leafygreen-ui-1kepx47" href="#sort-results" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="sort-results">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The index also supports sort operations on the
<code class="leafygreen-ui-1l06pbn">
stock.quantity
</code>
field,
such as this query:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.inventory.find().sort( { \"stock.quantity\": -1 } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">inventory</span>.<span class="lg-highlight-title lg-highlight-function">find</span>(<!-- -->).<span class="lg-highlight-title lg-highlight-function">sort</span>( <!-- -->{ <span class="lg-highlight-string">"stock.quantity"</span>: <!-- -->-<span class="lg-highlight-number">1</span> } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Output:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"[\n {\n _id: ObjectId(\"63449793b1fac2ee2e957ef1\"),\n item: 't-shirt',\n stock: [ { size: 'small', quantity: 8 }, { size: 'large', quantity: 10 } ]\n },\n {\n _id: ObjectId(\"63449793b1fac2ee2e957ef2\"),\n item: 'sweater',\n stock: [ { size: 'small', quantity: 4 }, { size: 'large', quantity: 7 } ]\n },\n {\n _id: ObjectId(\"63449793b1fac2ee2e957ef3\"),\n item: 'vest',\n stock: [ { size: 'small', quantity: 6 }, { size: 'large', quantity: 1 } ]\n }\n]","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"63449793b1fac2ee2e957ef1"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">item</span>: <span class="lg-highlight-string">'t-shirt'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">stock</span>: <!-- -->[ <!-- -->{ <span class="lg-highlight-attr">size</span>: <span class="lg-highlight-string">'small'</span>, <span class="lg-highlight-attr">quantity</span>: <span class="lg-highlight-number">8</span> }<!-- -->, <!-- -->{ <span class="lg-highlight-attr">size</span>: <span class="lg-highlight-string">'large'</span>, <span class="lg-highlight-attr">quantity</span>: <span class="lg-highlight-number">10</span> } ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"63449793b1fac2ee2e957ef2"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">item</span>: <span class="lg-highlight-string">'sweater'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">stock</span>: <!-- -->[ <!-- -->{ <span class="lg-highlight-attr">size</span>: <span class="lg-highlight-string">'small'</span>, <span class="lg-highlight-attr">quantity</span>: <span class="lg-highlight-number">4</span> }<!-- -->, <!-- -->{ <span class="lg-highlight-attr">size</span>: <span class="lg-highlight-string">'large'</span>, <span class="lg-highlight-attr">quantity</span>: <span class="lg-highlight-number">7</span> } ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"63449793b1fac2ee2e957ef3"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">item</span>: <span class="lg-highlight-string">'vest'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">stock</span>: <!-- -->[ <!-- -->{ <span class="lg-highlight-attr">size</span>: <span class="lg-highlight-string">'small'</span>, <span class="lg-highlight-attr">quantity</span>: <span class="lg-highlight-number">6</span> }<!-- -->, <!-- -->{ <span class="lg-highlight-attr">size</span>: <span class="lg-highlight-string">'large'</span>, <span class="lg-highlight-attr">quantity</span>: <span class="lg-highlight-number">1</span> } ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">]</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
When sorting an array of objects, in a descending sort, MongoDB sorts
based on the field with the highest-valued element first.
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
Index Sort Order
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Using a descending single-field index may negatively impact index
performance. For best performance, only use ascending single-field
indexes.
</p>
</div>
</div>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Learn More
<a class="headerlink leafygreen-ui-1kepx47" href="#learn-more" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="learn-more">
</div>
</a>
</h2>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/index-multikey/create-multikey-index-basic/#std-label-index-create-multikey-basic">
Create a multikey index on an array of scalar values
<!-- -->
.
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/index-multikey/multikey-index-bounds/#std-label-indexes-multikey-bounds">
Learn about multikey index bounds
<!-- -->
.
</a>
</p>
</li>
</ul>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/operator/aggregation/min/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
$min (aggregation)
<a class="headerlink leafygreen-ui-1kepx47" href="#-min--aggregation-" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="-min--aggregation-">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#definition" target="_self">
<span>
Definition
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#syntax" target="_self">
<span>
Syntax
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#behavior" target="_self">
<span>
Behavior
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#examples" target="_self">
<span>
Examples
</span>
</a>
</li>
</ul>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Definition
<a class="headerlink leafygreen-ui-1kepx47" href="#definition" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="definition">
</div>
</a>
</h2>
<div>
<p>
<em>
Changed
<!-- -->
in version
<!-- -->
5.0
</em>
.
</p>
</div>
<dl class="group">
<dt>
<code class="leafygreen-ui-1l06pbn">
$min
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-group-grp.-min" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-group-grp.-min">
</div>
</a>
</dt>
<dd>
</dd>
</dl>
<p class="leafygreen-ui-1kp3ins">
Returns the minimum value.
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-group-grp.-min" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$min
</code>
</span>
</a>
compares both value and
type, using the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/bson-type-comparison-order/#std-label-bson-types-comparison-order">
specified BSON comparison order
</a>
for values of different types.
</p>
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-group-grp.-min" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$min
</code>
</span>
</a>
is available in these stages:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/addFields/#mongodb-pipeline-pipe.-addFields">
<code class="leafygreen-ui-1l06pbn">
$addFields
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/bucket/#mongodb-pipeline-pipe.-bucket">
<code class="leafygreen-ui-1l06pbn">
$bucket
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/bucketAuto/#mongodb-pipeline-pipe.-bucketAuto">
<code class="leafygreen-ui-1l06pbn">
$bucketAuto
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/group/#mongodb-pipeline-pipe.-group">
<code class="leafygreen-ui-1l06pbn">
$group
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/match/#mongodb-pipeline-pipe.-match">
<code class="leafygreen-ui-1l06pbn">
$match
</code>
</a>
stage that includes an
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/expr/#mongodb-query-op.-expr">
<code class="leafygreen-ui-1l06pbn">
$expr
</code>
</a>
expression
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/project/#mongodb-pipeline-pipe.-project">
<code class="leafygreen-ui-1l06pbn">
$project
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/replaceRoot/#mongodb-pipeline-pipe.-replaceRoot">
<code class="leafygreen-ui-1l06pbn">
$replaceRoot
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/replaceWith/#mongodb-pipeline-pipe.-replaceWith">
<code class="leafygreen-ui-1l06pbn">
$replaceWith
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/set/#mongodb-pipeline-pipe.-set">
<code class="leafygreen-ui-1l06pbn">
$set
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/setWindowFields/#mongodb-pipeline-pipe.-setWindowFields">
<code class="leafygreen-ui-1l06pbn">
$setWindowFields
</code>
</a>
(Available starting in MongoDB 5.0)
</p>
</li>
</ul>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Syntax
<a class="headerlink leafygreen-ui-1kepx47" href="#syntax" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="syntax">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
When used in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/bucket/#mongodb-pipeline-pipe.-bucket">
<code class="leafygreen-ui-1l06pbn">
$bucket
</code>
</a>
,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/bucketAuto/#mongodb-pipeline-pipe.-bucketAuto">
<code class="leafygreen-ui-1l06pbn">
$bucketAuto
</code>
</a>
,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/group/#mongodb-pipeline-pipe.-group">
<code class="leafygreen-ui-1l06pbn">
$group
</code>
</a>
, and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/setWindowFields/#mongodb-pipeline-pipe.-setWindowFields">
<code class="leafygreen-ui-1l06pbn">
$setWindowFields
</code>
</a>
stages,
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-group-grp.-min" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$min
</code>
</span>
</a>
has this syntax:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ $min: <expression> }"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1agdxuk" tabindex="-1"><code class="lg-highlight-hljs-light none leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ $min: <expression> }</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
When used in other supported stages,
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-group-grp.-min" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$min
</code>
</span>
</a>
has one of two
syntaxes:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-group-grp.-min" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$min
</code>
</span>
</a>
has one specified expression as its operand:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ $min: <expression> }"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1agdxuk" tabindex="-1"><code class="lg-highlight-hljs-light none leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ $min: <expression> }</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-group-grp.-min" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$min
</code>
</span>
</a>
has a list of specified expressions as its
operand:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ $min: [ <expression1>, <expression2> ... ] }"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1agdxuk" tabindex="-1"><code class="lg-highlight-hljs-light none leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ $min: [ <expression1>, <expression2> ... ] }</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
For more information on expressions, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/#std-label-aggregation-expressions">
Expression Operators
<!-- -->
.
</a>
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Behavior
<a class="headerlink leafygreen-ui-1kepx47" href="#behavior" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="behavior">
</div>
</a>
</h2>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Result Type
<a class="headerlink leafygreen-ui-1kepx47" href="#result-type" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="result-type">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
$min
</code>
compares input data following the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/bson-type-comparison-order/#std-label-bson-types-comparison-order">
BSON Comparison order
</a>
to
determine the appropriate output type. When the input data contains
multiple data types, the
<code class="leafygreen-ui-1l06pbn">
$min
</code>
output type is the
<!-- -->
lowest
<!-- -->
in the comparison order.
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Null or Missing Values
<a class="headerlink leafygreen-ui-1kepx47" href="#null-or-missing-values" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="null-or-missing-values">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
If some,
<strong>
but not all
</strong>
, documents for the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-group-grp.-min" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$min
</code>
</span>
</a>
operation have either a
<code class="leafygreen-ui-1l06pbn">
null
</code>
value for the field or are
missing the field, the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-group-grp.-min" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$min
</code>
</span>
</a>
operator only considers the
non-null and the non-missing values for the field.
</p>
<p class="leafygreen-ui-1kp3ins">
If
<strong>
all
</strong>
documents for the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-group-grp.-min" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$min
</code>
</span>
</a>
operation have
<code class="leafygreen-ui-1l06pbn">
null
</code>
value for the field or are missing the field, the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-group-grp.-min" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$min
</code>
</span>
</a>
operator returns
<code class="leafygreen-ui-1l06pbn">
null
</code>
for the minimum value.
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Array Operand
<a class="headerlink leafygreen-ui-1kepx47" href="#array-operand" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="array-operand">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
In the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/group/#mongodb-pipeline-pipe.-group">
<code class="leafygreen-ui-1l06pbn">
$group
</code>
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/setWindowFields/#mongodb-pipeline-pipe.-setWindowFields">
<code class="leafygreen-ui-1l06pbn">
$setWindowFields
</code>
</a>
stages, if
the expression resolves to an array,
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-group-grp.-min" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$min
</code>
</span>
</a>
does not traverse the
array and compares the array as a whole.
</p>
<p class="leafygreen-ui-1kp3ins">
In the other supported stages:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
With a single expression as its operand, if the expression resolves
to an array,
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-group-grp.-min" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$min
</code>
</span>
</a>
traverses into the array to operate on the
numeric elements of the array to return a single value.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
With a list of expressions as its operand, if any of the expressions
resolves to an array,
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-group-grp.-min" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$min
</code>
</span>
</a>
does
<strong>
not
</strong>
traverse into the
array but instead treats the array as a non-numeric value.
</p>
</li>
</ul>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Examples
<a class="headerlink leafygreen-ui-1kepx47" href="#examples" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="examples">
</div>
</a>
</h2>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Use in
<code class="leafygreen-ui-1l06pbn">
$group
</code>
Stage
<a class="headerlink leafygreen-ui-1kepx47" href="#use-in--group-stage" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="use-in--group-stage">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Consider a
<code class="leafygreen-ui-1l06pbn">
sales
</code>
collection with the following documents:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ \"_id\" : 1, \"item\" : \"abc\", \"price\" : 10, \"quantity\" : 2, \"date\" : ISODate(\"2014-01-01T08:00:00Z\") }\n{ \"_id\" : 2, \"item\" : \"jkl\", \"price\" : 20, \"quantity\" : 1, \"date\" : ISODate(\"2014-02-03T09:00:00Z\") }\n{ \"_id\" : 3, \"item\" : \"xyz\", \"price\" : 5, \"quantity\" : 5, \"date\" : ISODate(\"2014-02-03T09:05:00Z\") }\n{ \"_id\" : 4, \"item\" : \"abc\", \"price\" : 10, \"quantity\" : 10, \"date\" : ISODate(\"2014-02-15T08:00:00Z\") }\n{ \"_id\" : 5, \"item\" : \"xyz\", \"price\" : 5, \"quantity\" : 10, \"date\" : ISODate(\"2014-02-15T09:05:00Z\") }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-string">"item"</span> <!-- -->: <span class="lg-highlight-string">"abc"</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-string">"quantity"</span> <!-- -->: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-string">"date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2014-01-01T08:00:00Z"</span>) }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-string">"item"</span> <!-- -->: <span class="lg-highlight-string">"jkl"</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">20</span>, <span class="lg-highlight-string">"quantity"</span> <!-- -->: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-string">"date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2014-02-03T09:00:00Z"</span>) }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">3</span>, <span class="lg-highlight-string">"item"</span> <!-- -->: <span class="lg-highlight-string">"xyz"</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-string">"quantity"</span> <!-- -->: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-string">"date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2014-02-03T09:05:00Z"</span>) }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">4</span>, <span class="lg-highlight-string">"item"</span> <!-- -->: <span class="lg-highlight-string">"abc"</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-string">"quantity"</span> <!-- -->: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-string">"date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2014-02-15T08:00:00Z"</span>) }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-string">"item"</span> <!-- -->: <span class="lg-highlight-string">"xyz"</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-string">"quantity"</span> <!-- -->: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-string">"date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2014-02-15T09:05:00Z"</span>) }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Grouping the documents by the
<code class="leafygreen-ui-1l06pbn">
item
</code>
field, the following operation
uses the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-group-grp.-min" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$min
</code>
</span>
</a>
accumulator to compute the minimum amount and
minimum quantity for each grouping.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.sales.aggregate(\n [\n {\n $group:\n {\n _id: \"$item\",\n minQuantity: { $min: \"$quantity\" }\n }\n }\n ]\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">sales</span>.<span class="lg-highlight-title lg-highlight-function">aggregate</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">$group</span>:</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-string">"$item"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">minQuantity</span>: <!-- -->{ <span class="lg-highlight-attr">$min</span>: <span class="lg-highlight-string">"$quantity"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The operation returns the following results:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ \"_id\" : \"xyz\", \"minQuantity\" : 5 }\n{ \"_id\" : \"jkl\", \"minQuantity\" : 1 }\n{ \"_id\" : \"abc\", \"minQuantity\" : 2 }","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"xyz"</span>, <span class="lg-highlight-string">"minQuantity"</span> <!-- -->: <span class="lg-highlight-number">5</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"jkl"</span>, <span class="lg-highlight-string">"minQuantity"</span> <!-- -->: <span class="lg-highlight-number">1</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"abc"</span>, <span class="lg-highlight-string">"minQuantity"</span> <!-- -->: <span class="lg-highlight-number">2</span> }</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Use in
<code class="leafygreen-ui-1l06pbn">
$project
</code>
Stage
<a class="headerlink leafygreen-ui-1kepx47" href="#use-in--project-stage" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="use-in--project-stage">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
A collection
<code class="leafygreen-ui-1l06pbn">
students
</code>
contains the following documents:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ \"_id\": 1, \"quizzes\": [ 10, 6, 7 ], \"labs\": [ 5, 8 ], \"final\": 80, \"midterm\": 75 }\n{ \"_id\": 2, \"quizzes\": [ 9, 10 ], \"labs\": [ 8, 8 ], \"final\": 95, \"midterm\": 80 }\n{ \"_id\": 3, \"quizzes\": [ 4, 5, 5 ], \"labs\": [ 6, 5 ], \"final\": 78, \"midterm\": 70 }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-string">"quizzes"</span>: <!-- -->[ <span class="lg-highlight-number">10</span>, <span class="lg-highlight-number">6</span>, <span class="lg-highlight-number">7</span> ]<!-- -->, <span class="lg-highlight-string">"labs"</span>: <!-- -->[ <span class="lg-highlight-number">5</span>, <span class="lg-highlight-number">8</span> ]<!-- -->, <span class="lg-highlight-string">"final"</span>: <span class="lg-highlight-number">80</span>, <span class="lg-highlight-string">"midterm"</span>: <span class="lg-highlight-number">75</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span>: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-string">"quizzes"</span>: <!-- -->[ <span class="lg-highlight-number">9</span>, <span class="lg-highlight-number">10</span> ]<!-- -->, <span class="lg-highlight-string">"labs"</span>: <!-- -->[ <span class="lg-highlight-number">8</span>, <span class="lg-highlight-number">8</span> ]<!-- -->, <span class="lg-highlight-string">"final"</span>: <span class="lg-highlight-number">95</span>, <span class="lg-highlight-string">"midterm"</span>: <span class="lg-highlight-number">80</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span>: <span class="lg-highlight-number">3</span>, <span class="lg-highlight-string">"quizzes"</span>: <!-- -->[ <span class="lg-highlight-number">4</span>, <span class="lg-highlight-number">5</span>, <span class="lg-highlight-number">5</span> ]<!-- -->, <span class="lg-highlight-string">"labs"</span>: <!-- -->[ <span class="lg-highlight-number">6</span>, <span class="lg-highlight-number">5</span> ]<!-- -->, <span class="lg-highlight-string">"final"</span>: <span class="lg-highlight-number">78</span>, <span class="lg-highlight-string">"midterm"</span>: <span class="lg-highlight-number">70</span> }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The following example uses the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-group-grp.-min" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$min
</code>
</span>
</a>
in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/project/#mongodb-pipeline-pipe.-project">
<code class="leafygreen-ui-1l06pbn">
$project
</code>
</a>
stage to calculate the minimum quiz scores, the
minimum lab scores, and the minimum of the final and the midterm:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.students.aggregate([\n { $project: { quizMin: { $min: \"$quizzes\"}, labMin: { $min: \"$labs\" }, examMin: { $min: [ \"$final\", \"$midterm\" ] } } }\n])","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">students</span>.<span class="lg-highlight-title lg-highlight-function">aggregate</span>(<!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">$project</span>: <!-- -->{ <span class="lg-highlight-attr">quizMin</span>: <!-- -->{ <span class="lg-highlight-attr">$min</span>: <span class="lg-highlight-string">"$quizzes"</span>}<!-- -->, <span class="lg-highlight-attr">labMin</span>: <!-- -->{ <span class="lg-highlight-attr">$min</span>: <span class="lg-highlight-string">"$labs"</span> }<!-- -->, <span class="lg-highlight-attr">examMin</span>: <!-- -->{ <span class="lg-highlight-attr">$min</span>: <!-- -->[ <span class="lg-highlight-string">"$final"</span>, <span class="lg-highlight-string">"$midterm"</span> ] } } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">])</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The operation results in the following documents:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ \"_id\" : 1, \"quizMin\" : 6, \"labMin\" : 5, \"examMin\" : 75 }\n{ \"_id\" : 2, \"quizMin\" : 9, \"labMin\" : 8, \"examMin\" : 80 }\n{ \"_id\" : 3, \"quizMin\" : 4, \"labMin\" : 5, \"examMin\" : 70 }","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-string">"quizMin"</span> <!-- -->: <span class="lg-highlight-number">6</span>, <span class="lg-highlight-string">"labMin"</span> <!-- -->: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-string">"examMin"</span> <!-- -->: <span class="lg-highlight-number">75</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-string">"quizMin"</span> <!-- -->: <span class="lg-highlight-number">9</span>, <span class="lg-highlight-string">"labMin"</span> <!-- -->: <span class="lg-highlight-number">8</span>, <span class="lg-highlight-string">"examMin"</span> <!-- -->: <span class="lg-highlight-number">80</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">3</span>, <span class="lg-highlight-string">"quizMin"</span> <!-- -->: <span class="lg-highlight-number">4</span>, <span class="lg-highlight-string">"labMin"</span> <!-- -->: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-string">"examMin"</span> <!-- -->: <span class="lg-highlight-number">70</span> }</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Use in
<code class="leafygreen-ui-1l06pbn">
$setWindowFields
</code>
Stage
<a class="headerlink leafygreen-ui-1kepx47" href="#use-in--setwindowfields-stage" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="use-in--setwindowfields-stage">
</div>
</a>
</h3>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
5.0
</em>
.
</p>
</div>
<p class="leafygreen-ui-1kp3ins">
Create a
<code class="leafygreen-ui-1l06pbn">
cakeSales
</code>
collection that contains cake sales in the states
of California (
<code class="leafygreen-ui-1l06pbn">
CA
</code>
) and Washington (
<code class="leafygreen-ui-1l06pbn">
WA
</code>
):
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.cakeSales.insertMany( [\n { _id: 0, type: \"chocolate\", orderDate: new Date(\"2020-05-18T14:10:30Z\"),\n state: \"CA\", price: 13, quantity: 120 },\n { _id: 1, type: \"chocolate\", orderDate: new Date(\"2021-03-20T11:30:05Z\"),\n state: \"WA\", price: 14, quantity: 140 },\n { _id: 2, type: \"vanilla\", orderDate: new Date(\"2021-01-11T06:31:15Z\"),\n state: \"CA\", price: 12, quantity: 145 },\n { _id: 3, type: \"vanilla\", orderDate: new Date(\"2020-02-08T13:13:23Z\"),\n state: \"WA\", price: 13, quantity: 104 },\n { _id: 4, type: \"strawberry\", orderDate: new Date(\"2019-05-18T16:09:01Z\"),\n state: \"CA\", price: 41, quantity: 162 },\n { _id: 5, type: \"strawberry\", orderDate: new Date(\"2019-01-08T06:12:03Z\"),\n state: \"WA\", price: 43, quantity: 134 }\n] )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">cakeSales</span>.<span class="lg-highlight-title lg-highlight-function">insertMany</span>( <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">0</span>, <span class="lg-highlight-attr">type</span>: <span class="lg-highlight-string">"chocolate"</span>, <span class="lg-highlight-attr">orderDate</span>: <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Date</span>(<span class="lg-highlight-string">"2020-05-18T14:10:30Z"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">state</span>: <span class="lg-highlight-string">"CA"</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">13</span>, <span class="lg-highlight-attr">quantity</span>: <span class="lg-highlight-number">120</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-attr">type</span>: <span class="lg-highlight-string">"chocolate"</span>, <span class="lg-highlight-attr">orderDate</span>: <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Date</span>(<span class="lg-highlight-string">"2021-03-20T11:30:05Z"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">state</span>: <span class="lg-highlight-string">"WA"</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">14</span>, <span class="lg-highlight-attr">quantity</span>: <span class="lg-highlight-number">140</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-attr">type</span>: <span class="lg-highlight-string">"vanilla"</span>, <span class="lg-highlight-attr">orderDate</span>: <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Date</span>(<span class="lg-highlight-string">"2021-01-11T06:31:15Z"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">state</span>: <span class="lg-highlight-string">"CA"</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">12</span>, <span class="lg-highlight-attr">quantity</span>: <span class="lg-highlight-number">145</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">3</span>, <span class="lg-highlight-attr">type</span>: <span class="lg-highlight-string">"vanilla"</span>, <span class="lg-highlight-attr">orderDate</span>: <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Date</span>(<span class="lg-highlight-string">"2020-02-08T13:13:23Z"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">state</span>: <span class="lg-highlight-string">"WA"</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">13</span>, <span class="lg-highlight-attr">quantity</span>: <span class="lg-highlight-number">104</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">4</span>, <span class="lg-highlight-attr">type</span>: <span class="lg-highlight-string">"strawberry"</span>, <span class="lg-highlight-attr">orderDate</span>: <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Date</span>(<span class="lg-highlight-string">"2019-05-18T16:09:01Z"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">state</span>: <span class="lg-highlight-string">"CA"</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">41</span>, <span class="lg-highlight-attr">quantity</span>: <span class="lg-highlight-number">162</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-attr">type</span>: <span class="lg-highlight-string">"strawberry"</span>, <span class="lg-highlight-attr">orderDate</span>: <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Date</span>(<span class="lg-highlight-string">"2019-01-08T06:12:03Z"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">state</span>: <span class="lg-highlight-string">"WA"</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">43</span>, <span class="lg-highlight-attr">quantity</span>: <span class="lg-highlight-number">134</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">] )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
This example uses
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-group-grp.-min" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$min
</code>
</span>
</a>
in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/setWindowFields/#mongodb-pipeline-pipe.-setWindowFields">
<code class="leafygreen-ui-1l06pbn">
$setWindowFields
</code>
</a>
stage to output the minimum
<code class="leafygreen-ui-1l06pbn">
quantity
</code>
of cake sales for each
<code class="leafygreen-ui-1l06pbn">
state
</code>
:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.cakeSales.aggregate( [\n {\n $setWindowFields: {\n partitionBy: \"$state\",\n sortBy: { orderDate: 1 },\n output: {\n minimumQuantityForState: {\n $min: \"$quantity\",\n window: {\n documents: [ \"unbounded\", \"current\" ]\n }\n }\n }\n }\n }\n] )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">cakeSales</span>.<span class="lg-highlight-title lg-highlight-function">aggregate</span>( <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">$setWindowFields</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">partitionBy</span>: <span class="lg-highlight-string">"$state"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">sortBy</span>: <!-- -->{ <span class="lg-highlight-attr">orderDate</span>: <span class="lg-highlight-number">1</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">output</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">minimumQuantityForState</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">$min</span>: <span class="lg-highlight-string">"$quantity"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">window</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">documents</span>: <!-- -->[ <span class="lg-highlight-string">"unbounded"</span>, <span class="lg-highlight-string">"current"</span> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">] )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
In the example:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
partitionBy: "$state"
</code>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/setWindowFields/#std-label-setWindowFields-partitionBy">
partitions
</a>
the documents in the collection by
<code class="leafygreen-ui-1l06pbn">
state
</code>
. There are partitions for
<code class="leafygreen-ui-1l06pbn">
CA
</code>
and
<code class="leafygreen-ui-1l06pbn">
WA
</code>
.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
sortBy: { orderDate: 1 }
</code>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/setWindowFields/#std-label-setWindowFields-sortBy">
sorts
</a>
the documents in each partition by
<code class="leafygreen-ui-1l06pbn">
orderDate
</code>
in ascending order (
<code class="leafygreen-ui-1l06pbn">
1
</code>
), so the earliest
<code class="leafygreen-ui-1l06pbn">
orderDate
</code>
is first.
</p>
</li>
</ul>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
output
</code>
sets the
<code class="leafygreen-ui-1l06pbn">
minimumQuantityForState
</code>
field to the minimum
<code class="leafygreen-ui-1l06pbn">
quantity
</code>
value using
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-group-grp.-min" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$min
</code>
</span>
</a>
that is run in a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/setWindowFields/#std-label-setWindowFields-documents">
documents
</a>
window.
</p>
<p class="leafygreen-ui-1kp3ins">
The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/setWindowFields/#std-label-setWindowFields-window">
window
</a>
contains documents between
an
<code class="leafygreen-ui-1l06pbn">
unbounded
</code>
lower limit and the
<code class="leafygreen-ui-1l06pbn">
current
</code>
document in the
output. This means
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-group-grp.-min" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$min
</code>
</span>
</a>
returns the minimum
<code class="leafygreen-ui-1l06pbn">
quantity
</code>
for the documents between the beginning of the partition
and the current document.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
In this output, the minimum
<code class="leafygreen-ui-1l06pbn">
quantity
</code>
for
<code class="leafygreen-ui-1l06pbn">
CA
</code>
and
<code class="leafygreen-ui-1l06pbn">
WA
</code>
is shown
in the
<code class="leafygreen-ui-1l06pbn">
minimumQuantityForState
</code>
field:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ \"_id\" : 4, \"type\" : \"strawberry\", \"orderDate\" : ISODate(\"2019-05-18T16:09:01Z\"),\n \"state\" : \"CA\", \"price\" : 41, \"quantity\" : 162, \"minimumQuantityForState\" : 162 }\n{ \"_id\" : 0, \"type\" : \"chocolate\", \"orderDate\" : ISODate(\"2020-05-18T14:10:30Z\"),\n \"state\" : \"CA\", \"price\" : 13, \"quantity\" : 120, \"minimumQuantityForState\" : 120 }\n{ \"_id\" : 2, \"type\" : \"vanilla\", \"orderDate\" : ISODate(\"2021-01-11T06:31:15Z\"),\n \"state\" : \"CA\", \"price\" : 12, \"quantity\" : 145, \"minimumQuantityForState\" : 120 }\n{ \"_id\" : 5, \"type\" : \"strawberry\", \"orderDate\" : ISODate(\"2019-01-08T06:12:03Z\"),\n \"state\" : \"WA\", \"price\" : 43, \"quantity\" : 134, \"minimumQuantityForState\" : 134 }\n{ \"_id\" : 3, \"type\" : \"vanilla\", \"orderDate\" : ISODate(\"2020-02-08T13:13:23Z\"),\n \"state\" : \"WA\", \"price\" : 13, \"quantity\" : 104, \"minimumQuantityForState\" : 104 }\n{ \"_id\" : 1, \"type\" : \"chocolate\", \"orderDate\" : ISODate(\"2021-03-20T11:30:05Z\"),\n \"state\" : \"WA\", \"price\" : 14, \"quantity\" : 140, \"minimumQuantityForState\" : 104 }","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">4</span>, <span class="lg-highlight-string">"type"</span> <!-- -->: <span class="lg-highlight-string">"strawberry"</span>, <span class="lg-highlight-string">"orderDate"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2019-05-18T16:09:01Z"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"state"</span> <!-- -->: <span class="lg-highlight-string">"CA"</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">41</span>, <span class="lg-highlight-string">"quantity"</span> <!-- -->: <span class="lg-highlight-number">162</span>, <span class="lg-highlight-string">"minimumQuantityForState"</span> <!-- -->: <span class="lg-highlight-number">162</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">0</span>, <span class="lg-highlight-string">"type"</span> <!-- -->: <span class="lg-highlight-string">"chocolate"</span>, <span class="lg-highlight-string">"orderDate"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-05-18T14:10:30Z"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"state"</span> <!-- -->: <span class="lg-highlight-string">"CA"</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">13</span>, <span class="lg-highlight-string">"quantity"</span> <!-- -->: <span class="lg-highlight-number">120</span>, <span class="lg-highlight-string">"minimumQuantityForState"</span> <!-- -->: <span class="lg-highlight-number">120</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-string">"type"</span> <!-- -->: <span class="lg-highlight-string">"vanilla"</span>, <span class="lg-highlight-string">"orderDate"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2021-01-11T06:31:15Z"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"state"</span> <!-- -->: <span class="lg-highlight-string">"CA"</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">12</span>, <span class="lg-highlight-string">"quantity"</span> <!-- -->: <span class="lg-highlight-number">145</span>, <span class="lg-highlight-string">"minimumQuantityForState"</span> <!-- -->: <span class="lg-highlight-number">120</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-string">"type"</span> <!-- -->: <span class="lg-highlight-string">"strawberry"</span>, <span class="lg-highlight-string">"orderDate"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2019-01-08T06:12:03Z"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"state"</span> <!-- -->: <span class="lg-highlight-string">"WA"</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">43</span>, <span class="lg-highlight-string">"quantity"</span> <!-- -->: <span class="lg-highlight-number">134</span>, <span class="lg-highlight-string">"minimumQuantityForState"</span> <!-- -->: <span class="lg-highlight-number">134</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">3</span>, <span class="lg-highlight-string">"type"</span> <!-- -->: <span class="lg-highlight-string">"vanilla"</span>, <span class="lg-highlight-string">"orderDate"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-02-08T13:13:23Z"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"state"</span> <!-- -->: <span class="lg-highlight-string">"WA"</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">13</span>, <span class="lg-highlight-string">"quantity"</span> <!-- -->: <span class="lg-highlight-number">104</span>, <span class="lg-highlight-string">"minimumQuantityForState"</span> <!-- -->: <span class="lg-highlight-number">104</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-string">"type"</span> <!-- -->: <span class="lg-highlight-string">"chocolate"</span>, <span class="lg-highlight-string">"orderDate"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2021-03-20T11:30:05Z"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"state"</span> <!-- -->: <span class="lg-highlight-string">"WA"</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">14</span>, <span class="lg-highlight-string">"quantity"</span> <!-- -->: <span class="lg-highlight-number">140</span>, <span class="lg-highlight-string">"minimumQuantityForState"</span> <!-- -->: <span class="lg-highlight-number">104</span> }</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</section>
</section>
</section>
|
https://www.mongodb.com/docs/manual/core/schema-validation/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Schema Validation
<a class="headerlink leafygreen-ui-1kepx47" href="#schema-validation" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="schema-validation">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#when-to-use-schema-validation" target="_self">
<span>
When to Use Schema Validation
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#when-mongodb-checks-validation" target="_self">
<span>
When MongoDB Checks Validation
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#what-happens-when-a-document-fails-validation" target="_self">
<span>
What Happens When a Document Fails Validation
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#get-started" target="_self">
<span>
Get Started
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#learn-more" target="_self">
<span>
Learn More
</span>
</a>
</li>
</ul>
</div>
<p class="leafygreen-ui-1kp3ins">
Schema validation lets you create validation rules for your fields, such
as allowed data types and value ranges.
</p>
<p class="leafygreen-ui-1kp3ins">
MongoDB uses a flexible schema model, which means that documents in a
collection do not need to have the same fields or data types by default.
Once you've established an application schema, you can use schema
validation to ensure there are no unintended schema changes or improper
data types.
</p>
<a class="css-53dzkk" href="https://www.mongodb.com/docs/atlas/performance-advisor/schema-suggestions/">
<div class="css-z0l49d">
<div class="css-fw7ipj">
<svg aria-label="Play Icon" class="leafygreen-ui-1t2jgtk" fill="none" height="16" role="img" viewbox="0 0 16 16" width="16" xmlns="http://www.w3.org/2000/svg">
<path d="M13.779 6.704a1.5 1.5 0 0 1 0 2.592l-7.523 4.388A1.5 1.5 0 0 1 4 12.388V3.612a1.5 1.5 0 0 1 2.256-1.296l7.523 4.388Z" fill="currentColor">
</path>
</svg>
</div>
<p class="leafygreen-ui-1kp3ins">
You can
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/performance-advisor/schema-suggestions/" target="_self">
<span>
implement schema validation in the UI
</span>
</a>
for deployments hosted in
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas?tck=docs_server" target="_self">
<span>
MongoDB Atlas.
</span>
</a>
</p>
</div>
</a>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
When to Use Schema Validation
<a class="headerlink leafygreen-ui-1kepx47" href="#when-to-use-schema-validation" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="when-to-use-schema-validation">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
Your schema validation needs depend on how users use your application.
When your application is in the early stages of development, schema
validation may impose unhelpful restrictions because you don't know how
you want to organize your data. Specifically, the fields in your
collections may change over time.
</p>
<p class="leafygreen-ui-1kp3ins">
Schema validation is most useful for an established application where
you have a good sense of how to organize your data. You can use schema
validation in the following scenarios:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For a users collection, ensure that the
<code class="leafygreen-ui-1l06pbn">
password
</code>
field is only
stored as a string. This validation prevents users from saving their
password as an unexpected data type, like an image.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For a sales collection, ensure that the
<code class="leafygreen-ui-1l06pbn">
item
</code>
field belongs to a
list of items that your store sells. This validation prevents a user
from accidentally misspelling an item name when entering sales data.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For a students collection, ensure that the
<code class="leafygreen-ui-1l06pbn">
gpa
</code>
field is always a
positive number. This validation prevents errors during data entry.
</p>
</li>
</ul>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
When MongoDB Checks Validation
<a class="headerlink leafygreen-ui-1kepx47" href="#when-mongodb-checks-validation" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="when-mongodb-checks-validation">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
After you add schema validation rules to a collection:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
All document inserts must match the rules.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The schema validation level defines how the rules are applied to
existing documents and document updates. To learn more, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/schema-validation/specify-validation-level/#std-label-schema-specify-validation-level">
Specify Validation Level for Existing Documents.
</a>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
To find documents in a collection that don't match the schema validation
rules, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/schema-validation/use-json-schema-query-conditions/#std-label-use-json-schema-query-conditions-find-documents">
Find Documents that Don't Match the Schema.
</a>
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
What Happens When a Document Fails Validation
<a class="headerlink leafygreen-ui-1kepx47" href="#what-happens-when-a-document-fails-validation" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="what-happens-when-a-document-fails-validation">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
By default, when an insert or update operation would result in an
invalid document, MongoDB rejects the operation and does not write the
document to the collection.
</p>
<p class="leafygreen-ui-1kp3ins">
Alternatively, you can configure MongoDB to allow invalid documents and
log warnings when schema violations occur.
</p>
<p class="leafygreen-ui-1kp3ins">
To learn more, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/schema-validation/handle-invalid-documents/#std-label-schema-validation-handle-invalid-docs">
Choose How to Handle Invalid Documents.
</a>
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Get Started
<a class="headerlink leafygreen-ui-1kepx47" href="#get-started" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="get-started">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
For common tasks involving schema validation, see the following pages:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/schema-validation/specify-json-schema/#std-label-schema-validation-json">
Specify JSON Schema Validation
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/schema-validation/specify-query-expression-rules/#std-label-schema-validation-query-expression">
Specify Validation With Query Operators
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/schema-validation/specify-json-schema/specify-allowed-field-values/#std-label-schema-allowed-field-values">
Specify Allowed Field Values
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/schema-validation/view-existing-validation-rules/#std-label-schema-view-validation-rules">
View Existing Validation Rules
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/schema-validation/update-schema-validation/#std-label-schema-update-validation">
Modify Schema Validation
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/schema-validation/use-json-schema-query-conditions/#std-label-use-json-schema-query-conditions">
Query for and Modify Valid or Invalid Documents
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/schema-validation/bypass-document-validation/#std-label-schema-bypass-document-validation">
Bypass Schema Validation
</a>
</p>
</li>
</ul>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Learn More
<a class="headerlink leafygreen-ui-1kepx47" href="#learn-more" title="Permalink to this heading">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="learn-more">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
To learn about MongoDB's flexible schema model, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/data-modeling/#std-label-manual-data-modeling-intro">
Data Modeling.
</a>
</p>
</section>
</section>
|
https://www.mongodb.com/docs/manual/data-modeling/enforce-consistency/embed-data/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Enforce Data Consistency with Embedding
<a class="headerlink leafygreen-ui-1kepx47" href="#enforce-data-consistency-with-embedding" title="Permalink to this heading">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="enforce-data-consistency-with-embedding">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#about-this-task" target="_self">
<span>
About this Task
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#before-you-begin" target="_self">
<span>
Before you Begin
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#steps" target="_self">
<span>
Steps
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#results" target="_self">
<span>
Results
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#next-steps" target="_self">
<span>
Next Steps
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#learn-more" target="_self">
<span>
Learn More
</span>
</a>
</li>
</ul>
</div>
<p class="leafygreen-ui-1kp3ins">
If your schema stores the same data in multiple collections, you can
embed related data to remove the duplication. The updated, denormalized
schema keeps data consistent by maintaining data values in a single
location.
</p>
<p class="leafygreen-ui-1kp3ins">
Embedding related data simplifies your schema and ensures that the user
always reads the most current data. However, embedding may not be the
best choice to represent complex relationships like many-to-many.
</p>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
About this Task
<a class="headerlink leafygreen-ui-1kepx47" href="#about-this-task" title="Permalink to this heading">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="about-this-task">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
How to optimally embed related data depends on the queries run by your
application. When you embed data in a single collection, consider the
indexes that enable performant queries and structure your schema to
allow for efficient, logical indexes.
</p>
<p class="leafygreen-ui-1kp3ins">
To compare the benefits of embedding documents and references, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/data-modeling/concepts/embedding-vs-references/#std-label-data-modeling-decisions">
Embedded Data Versus References
<!-- -->
.
</a>
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Before you Begin
<a class="headerlink leafygreen-ui-1kepx47" href="#before-you-begin" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="before-you-begin">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
Review the different methods to enforce data consistency to ensure that
<!-- -->
embedding is
<!-- -->
the best approach for your application. For more information,
see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/data-modeling/data-consistency/#std-label-data-modeling-data-consistency">
Data Consistency
<!-- -->
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
Updating how data is stored in your database can impact existing indexes
and queries. When you update your schema, also update your application's
indexes and queries to account for the schema changes.
</p>
<p class="leafygreen-ui-1kp3ins">
The following example enforces data consistency in an e-commerce
application. In the initial schema, product information is duplicated in
the
<code class="leafygreen-ui-1l06pbn">
products
</code>
and
<code class="leafygreen-ui-1l06pbn">
sellers
</code>
collections. The
<code class="leafygreen-ui-1l06pbn">
sellerId
</code>
field in
the
<code class="leafygreen-ui-1l06pbn">
products
</code>
collection is a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/data-modeling/concepts/embedding-vs-references/#std-label-data-modeling-referencing">
reference
</a>
to to the
<code class="leafygreen-ui-1l06pbn">
sellers
</code>
collection, and links
the data together.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"// products collection\n\n [\n {\n _id: 111,\n sellerId: 456,\n name: \"sweater\",\n price: 30,\n rating: 4.9,\n color: \"green\"\n },\n {\n _id: 222,\n sellerId: 456,\n name: \"t-shirt\",\n price: 10,\n rating: 4.2,\n color: \"blue\"\n },\n {\n _id: 333,\n sellerId: 456,\n name: \"vest\",\n price: 20,\n rating: 4.7,\n color: \"red\"\n }\n ]","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-comment">// products collection</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">111</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">sellerId</span>: <span class="lg-highlight-number">456</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">"sweater"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">30</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">rating</span>: <span class="lg-highlight-number">4.9</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">color</span>: <span class="lg-highlight-string">"green"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">222</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">sellerId</span>: <span class="lg-highlight-number">456</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">"t-shirt"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">10</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">rating</span>: <span class="lg-highlight-number">4.2</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">color</span>: <span class="lg-highlight-string">"blue"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">333</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">sellerId</span>: <span class="lg-highlight-number">456</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">"vest"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">20</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">rating</span>: <span class="lg-highlight-number">4.7</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">color</span>: <span class="lg-highlight-string">"red"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"// sellers collection\n\n [\n {\n _id: 456,\n name: \"Cool Clothes Co\",\n location: {\n address: \"21643 Andreane Shores\",\n state: \"Ohio\",\n country: \"United States\"\n },\n phone: \"567-555-0105\",\n products: [\n {\n id: 111,\n name: \"sweater\",\n price: 30\n },\n {\n id: 222,\n name: \"t-shirt\",\n price: 10\n },\n {\n id: 333\n name: \"vest\",\n price: 20\n }\n ]\n }\n ]","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-comment">// sellers collection</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">456</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">"Cool Clothes Co"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">location</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">address</span>: <span class="lg-highlight-string">"21643 Andreane Shores"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">state</span>: <span class="lg-highlight-string">"Ohio"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">country</span>: <span class="lg-highlight-string">"United States"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">phone</span>: <span class="lg-highlight-string">"567-555-0105"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">products</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">id</span>: <span class="lg-highlight-number">111</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">"sweater"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">30</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">id</span>: <span class="lg-highlight-number">222</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">"t-shirt"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">10</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">id</span>: <span class="lg-highlight-number">333</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">"vest"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">20</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Steps
<a class="headerlink leafygreen-ui-1kepx47" href="#steps" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="steps">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
To denormalize the schema and enforce consistency, embed the product
information inside of the
<code class="leafygreen-ui-1l06pbn">
sellers
</code>
collection:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.sellers.insertOne(\n {\n _id: 456,\n name: \"Cool Clothes Co\",\n location: {\n address: \"21643 Andreane Shores\",\n state: \"Ohio\",\n country: \"United States\"\n },\n phone: \"567-555-0105\",\n products: [\n {\n id: 111,\n name: \"sweater\",\n price: 30,\n rating: 4.9,\n color: \"green\"\n },\n {\n id: 222,\n name: \"t-shirt\",\n price: 10,\n rating: 4.2,\n color: \"blue\"\n },\n {\n id: 333,\n name: \"vest\",\n price: 20,\n rating: 4.7,\n color: \"red\"\n }\n ]\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">sellers</span>.<span class="lg-highlight-title lg-highlight-function">insertOne</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">456</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">"Cool Clothes Co"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">location</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">address</span>: <span class="lg-highlight-string">"21643 Andreane Shores"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">state</span>: <span class="lg-highlight-string">"Ohio"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">country</span>: <span class="lg-highlight-string">"United States"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">phone</span>: <span class="lg-highlight-string">"567-555-0105"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">products</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">id</span>: <span class="lg-highlight-number">111</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">"sweater"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">30</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">rating</span>: <span class="lg-highlight-number">4.9</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">color</span>: <span class="lg-highlight-string">"green"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">id</span>: <span class="lg-highlight-number">222</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">"t-shirt"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">10</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">rating</span>: <span class="lg-highlight-number">4.2</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">color</span>: <span class="lg-highlight-string">"blue"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">id</span>: <span class="lg-highlight-number">333</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">"vest"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">20</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">rating</span>: <span class="lg-highlight-number">4.7</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">color</span>: <span class="lg-highlight-string">"red"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
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</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Results
<a class="headerlink leafygreen-ui-1kepx47" href="#results" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="results">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The updated schema returns all product information when a user queries
for a particular seller. The updated schema does not require additional
logic or maintenance to keep data consistent because data is
denormalized in a single collection.
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Next Steps
<a class="headerlink leafygreen-ui-1kepx47" href="#next-steps" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="next-steps">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
After you restructure your schema, you can create indexes to support
common queries. For example, if users often query for products by color,
you can create an index on the
<code class="leafygreen-ui-1l06pbn">
products.color
</code>
field:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.sellers.createIndex( { \"products.color\": 1 } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">sellers</span>.<span class="lg-highlight-title lg-highlight-function">createIndex</span>( <!-- -->{ <span class="lg-highlight-string">"products.color"</span>: <span class="lg-highlight-number">1</span> } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
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</div>
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</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Learn More
<a class="headerlink leafygreen-ui-1kepx47" href="#learn-more" title="Permalink to this heading">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="learn-more">
</div>
</a>
</h2>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/data-modeling/concepts/embedding-vs-references/#std-label-data-modeling-decisions">
Embedded Data Versus References
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/data-modeling/schema-design-process/create-indexes/#std-label-create-indexes-to-support-queries">
Create Indexes to Support Your Queries
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/data-modeling/handle-duplicate-data/#std-label-data-modeling-duplicate-data">
Handle Duplicate Data
</a>
</p>
</li>
</ul>
</section>
</section>
|
https://www.mongodb.com/docs/manual/data-modeling/enforce-consistency/transactions/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Enforce Data Consistency with Transactions
<a class="headerlink leafygreen-ui-1kepx47" href="#enforce-data-consistency-with-transactions" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="enforce-data-consistency-with-transactions">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#about-this-task" target="_self">
<span>
About this Task
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#before-you-begin" target="_self">
<span>
Before you Begin
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#steps" target="_self">
<span>
Steps
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#create-the-products-collection" target="_self">
<span>
Create the products collection
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#create-the-sellers-collection" target="_self">
<span>
Create the sellers collection
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#configure-a-transaction-to-handle-updates" target="_self">
<span>
Configure a transaction to handle updates
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#results" target="_self">
<span>
Results
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#query-the-products-collection" target="_self">
<span>
Query the Products Collection
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#query-the-sellers-collection" target="_self">
<span>
Query the Sellers Collection
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#learn-more" target="_self">
<span>
Learn More
</span>
</a>
</li>
</ul>
</div>
<p class="leafygreen-ui-1kp3ins">
You can use
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/transactions/#std-label-transactions">
transactions
</a>
to enforce consistency
between collections that contain duplicated data. Transactions update
multiple collections in a single atomic operation.
</p>
<p class="leafygreen-ui-1kp3ins">
Use transactions to enforce consistency if your application must always
return up-to-date data and can tolerate potential negative performance
impact during periods of heavy reads.
</p>
<p class="leafygreen-ui-1kp3ins">
Transactions might not be as performant as other methods of enforcing
data consistency. Read performance might be negatively impacted while a
transaction is open. However, transactions ensure that the data read by
the client is always current.
</p>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
About this Task
<a class="headerlink leafygreen-ui-1kepx47" href="#about-this-task" title="Permalink to this heading">
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</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="about-this-task">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
To use transactions, you must connect to a replica set or sharded
cluster. You cannot use transactions on standalone deployments.
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Before you Begin
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</h2>
<p class="leafygreen-ui-1kp3ins">
Review the different methods to enforce data consistency to ensure that
<!-- -->
transactions are
<!-- -->
the best approach for your application. For more information,
see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/data-modeling/data-consistency/#std-label-data-modeling-data-consistency">
Data Consistency
<!-- -->
.
</a>
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Steps
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<div class="css-1btu0w3 evvkmar0" id="steps">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The following example enforces data consistency in an e-commerce
application. The example schema duplicates product information in the
<code class="leafygreen-ui-1l06pbn">
products
</code>
and
<code class="leafygreen-ui-1l06pbn">
sellers
</code>
collections. This schema design optimizes
queries for both products and sellers.
</p>
<p class="leafygreen-ui-1kp3ins">
When a product is updated, such as when its price changes, it is
critical that the price is consistent in the
<code class="leafygreen-ui-1l06pbn">
products
</code>
and
<code class="leafygreen-ui-1l06pbn">
sellers
</code>
collections. Therefore, transactions are a reasonable method
to enforce data consistency in this application.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"HowTo","steps":[{"@type":"HowToStep","text":"Create the products collection"},{"@type":"HowToStep","text":"Create the sellers collection"},{"@type":"HowToStep","text":"The following example uses a transaction in mongosh. To see\ntransaction examples for MongoDB drivers, see Transactions.The following example uses a transaction to update the price of\nthe vest in both the products and sellers collections:","name":"Configure a transaction to handle updates"}],"name":"Steps","image":"https://webimages.mongodb.com/_com_assets/cms/kuyj2focmkbxv7gh3-stacked_default_slate_blue.svg?auto=format%252Ccompress"}
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<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Create the products collection
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
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</div>
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</h3>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"use test\n\ndb.products.insertMany(\n [\n {\n sellerId: 456,\n name: \"sweater\",\n price: 30,\n rating: 4.9\n },\n {\n sellerId: 456,\n name: \"t-shirt\",\n price: 10,\n rating: 4.2\n },\n {\n sellerId: 456,\n name: \"vest\",\n price: 20,\n rating: 4.7\n }\n ]\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">use test</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">products</span>.<span class="lg-highlight-title lg-highlight-function">insertMany</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">sellerId</span>: <span class="lg-highlight-number">456</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">"sweater"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">30</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">rating</span>: <span class="lg-highlight-number">4.9</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">sellerId</span>: <span class="lg-highlight-number">456</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">"t-shirt"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">10</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">rating</span>: <span class="lg-highlight-number">4.2</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">sellerId</span>: <span class="lg-highlight-number">456</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">"vest"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">20</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">rating</span>: <span class="lg-highlight-number">4.7</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
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<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Create the sellers collection
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
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</div>
</a>
</h3>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"use test\n\ndb.sellers.insertOne(\n {\n id: 456,\n name: \"Cool Clothes Co\",\n location: {\n address: \"21643 Andreane Shores\",\n state: \"Ohio\",\n country: \"United States\"\n },\n phone: \"567-555-0105\",\n products: [\n {\n name: \"sweater\",\n price: 30\n },\n {\n name: \"t-shirt\",\n price: 10\n },\n {\n name: \"vest\",\n price: 20\n }\n ]\n }\n)","programmingLanguage":"JavaScript"}
</script>
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<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">use test</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">sellers</span>.<span class="lg-highlight-title lg-highlight-function">insertOne</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">id</span>: <span class="lg-highlight-number">456</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">"Cool Clothes Co"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">location</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">address</span>: <span class="lg-highlight-string">"21643 Andreane Shores"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">state</span>: <span class="lg-highlight-string">"Ohio"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">country</span>: <span class="lg-highlight-string">"United States"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">phone</span>: <span class="lg-highlight-string">"567-555-0105"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">products</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">"sweater"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">30</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">"t-shirt"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">10</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">"vest"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">20</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
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Configure a transaction to handle updates
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<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
The following example uses a transaction in
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
. To see
transaction examples for MongoDB drivers, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/transactions/#std-label-transactions">
Transactions
<!-- -->
.
</a>
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The following example uses a transaction to update the price of
the
<code class="leafygreen-ui-1l06pbn">
vest
</code>
in both the
<code class="leafygreen-ui-1l06pbn">
products
</code>
and
<code class="leafygreen-ui-1l06pbn">
sellers
</code>
collections:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"// Start a session\nsession = db.getMongo().startSession( { readPreference: { mode: \"primary\" } } );\nproductsCollection = session.getDatabase(\"test\").products;\nsellersCollection = session.getDatabase(\"test\").sellers;\n\n// Start a transaction\nsession.startTransaction( { readConcern: { level: \"local\" }, writeConcern: { w: \"majority\" } } );\n\n// Operations inside the transaction\ntry {\n productsCollection.updateOne(\n { sellerId: 456, name: \"vest\" },\n { $set: { price: 25 } }\n );\n sellersCollection.updateOne(\n { },\n { $set: { \"products.$[element].price\": 25 } },\n { arrayFilters: [ { \"element.name\": \"vest\" } ] }\n );\n} catch (error) {\n // Cancel transaction on error\n session.abortTransaction();\n throw error;\n}\n// Commit the transaction using write concern set at transaction start\nsession.commitTransaction();\nsession.endSession();","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-comment">// Start a session</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">session <!-- -->= <!-- -->db.<span class="lg-highlight-title lg-highlight-function">getMongo</span>(<!-- -->).<span class="lg-highlight-title lg-highlight-function">startSession</span>( <!-- -->{ <span class="lg-highlight-attr">readPreference</span>: <!-- -->{ <span class="lg-highlight-attr">mode</span>: <span class="lg-highlight-string">"primary"</span> } } )<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">productsCollection <!-- -->= <!-- -->session.<span class="lg-highlight-title lg-highlight-function">getDatabase</span>(<span class="lg-highlight-string">"test"</span>).<span class="lg-highlight-property">products</span>;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">sellersCollection <!-- -->= <!-- -->session.<span class="lg-highlight-title lg-highlight-function">getDatabase</span>(<span class="lg-highlight-string">"test"</span>).<span class="lg-highlight-property">sellers</span>;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-comment">// Start a transaction</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">session.<span class="lg-highlight-title lg-highlight-function">startTransaction</span>( <!-- -->{ <span class="lg-highlight-attr">readConcern</span>: <!-- -->{ <span class="lg-highlight-attr">level</span>: <span class="lg-highlight-string">"local"</span> }<!-- -->, <span class="lg-highlight-attr">writeConcern</span>: <!-- -->{ <span class="lg-highlight-attr">w</span>: <span class="lg-highlight-string">"majority"</span> } } )<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-comment">//</span><span class="lg-highlight-comment"> Operations inside the </span><span class="lg-highlight-comment">transaction</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">try</span> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->productsCollection.<span class="lg-highlight-title lg-highlight-function">updateOne</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">sellerId</span>: <span class="lg-highlight-number">456</span>, <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">"vest"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">$set</span>: <!-- -->{ <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">25</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> )<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->sellersCollection.<span class="lg-highlight-title lg-highlight-function">updateOne</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <!-- -->}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">$set</span>: <!-- -->{ <span class="lg-highlight-string">"products.$[element].price"</span>: <span class="lg-highlight-number">25</span> } }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">arrayFilters</span>: <!-- -->[ <!-- -->{ <span class="lg-highlight-string">"element.name"</span>: <span class="lg-highlight-string">"vest"</span> } ] }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> )<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">} <span class="lg-highlight-keyword">catch</span> <!-- -->(<!-- -->error) <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-comment">//</span><span class="lg-highlight-comment"> Cancel transaction on </span><span class="lg-highlight-comment">error</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->session.<span class="lg-highlight-title lg-highlight-function">abortTransaction</span>(<!-- -->)<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">throw</span> <!-- -->error<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-comment">//</span><span class="lg-highlight-comment"> Commit the transaction </span><span class="lg-highlight-comment">using</span><span class="lg-highlight-comment"> write concern set </span><span class="lg-highlight-comment">at transaction start</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">session.<span class="lg-highlight-title lg-highlight-function">commitTransaction</span>(<!-- -->)<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">session.<span class="lg-highlight-title lg-highlight-function">endSession</span>(<!-- -->)<!-- -->;</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</section>
</div>
</div>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Results
<a class="headerlink leafygreen-ui-1kepx47" href="#results" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="results">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
To confirm that the price was updated and that the data is consistent,
query the
<code class="leafygreen-ui-1l06pbn">
products
</code>
and
<code class="leafygreen-ui-1l06pbn">
sellers
</code>
collections.
</p>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Query the Products Collection
<a class="headerlink leafygreen-ui-1kepx47" href="#query-the-products-collection" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="query-the-products-collection">
</div>
</a>
</h3>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.products.find( { sellerId: 456, name: \"vest\" } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">products</span>.<span class="lg-highlight-title lg-highlight-function">find</span>( <!-- -->{ <span class="lg-highlight-attr">sellerId</span>: <span class="lg-highlight-number">456</span>, <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">"vest"</span> } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Output:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"[\n {\n _id: ObjectId(\"64d506c3ddebf45734d06c58\"),\n sellerId: 456,\n name: 'vest',\n price: 25,\n rating: 4.7\n }\n]","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"64d506c3ddebf45734d06c58"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">sellerId</span>: <span class="lg-highlight-number">456</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">'vest'</span>,</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">25</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">rating</span>: <span class="lg-highlight-number">4.7</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">]</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Query the Sellers Collection
<a class="headerlink leafygreen-ui-1kepx47" href="#query-the-sellers-collection" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="query-the-sellers-collection">
</div>
</a>
</h3>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.sellers.find( { id: 456, \"products.name\": \"vest\" } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">sellers</span>.<span class="lg-highlight-title lg-highlight-function">find</span>( <!-- -->{ <span class="lg-highlight-attr">id</span>: <span class="lg-highlight-number">456</span>, <span class="lg-highlight-string">"products.name"</span>: <span class="lg-highlight-string">"vest"</span> } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Output:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"[\n {\n _id: ObjectId(\"64d516d9ddebf45734d06c5a\"),\n id: 456,\n name: 'Cool Clothes Co',\n location: {\n address: '21643 Andreane Shores',\n state: 'Ohio',\n country: 'United States'\n },\n phone: '567-555-0105',\n products: [\n { name: 'sweater', price: 30 },\n { name: 't-shirt', price: 10 },\n { name: 'vest', price: 25 }\n ]\n }\n]","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"64d516d9ddebf45734d06c5a"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">id</span>: <span class="lg-highlight-number">456</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">'Cool Clothes Co'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">location</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">address</span>: <span class="lg-highlight-string">'21643 Andreane Shores'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">state</span>: <span class="lg-highlight-string">'Ohio'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">country</span>: <span class="lg-highlight-string">'United States'</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">phone</span>: <span class="lg-highlight-string">'567-555-0105'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">products</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">'sweater'</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">30</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">'t-shirt'</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">10</span> }<!-- -->,</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">'vest'</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">25</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">]</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Learn More
<a class="headerlink leafygreen-ui-1kepx47" href="#learn-more" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="learn-more">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
To see other ways to enforce data consistency, see:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/app-services/triggers/database-triggers/" target="_self">
<span>
Atlas Database Triggers
</span>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/data-modeling/enforce-consistency/embed-data/#std-label-enforce-consistency-embedding">
Enforce Data Consistency with Embedding
</a>
</p>
</li>
</ul>
</section>
</section>
|
https://www.mongodb.com/docs/manual/tutorial/model-iot-data/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Model IoT Data
<a class="headerlink leafygreen-ui-1kepx47" href="#model-iot-data" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="model-iot-data">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#the-bucket-pattern" target="_self">
<span>
The Bucket Pattern
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#time-representations-in-mongodb" target="_self">
<span>
Time Representations in MongoDB
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#example" target="_self">
<span>
Example
</span>
</a>
</li>
</ul>
</div>
<p class="leafygreen-ui-1kp3ins">
The Internet of Things (IoT) is a network of physical objects that are
connected to the internet. Many of these devices, like sensors, generate
data.
</p>
<p class="leafygreen-ui-1kp3ins">
To store and retrieve this data efficiently, you can use the bucket
pattern.
</p>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
The Bucket Pattern
<a class="headerlink leafygreen-ui-1kepx47" href="#the-bucket-pattern" title="Permalink to this heading">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="the-bucket-pattern">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
A common method to organize IoT data is to group the data
into buckets. Bucketing organizes specific groups of data to help:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Discover historical trends,
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Forecast future trends, and
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Optimize storage usage.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
Common parameters to group data by are:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
time
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
data source (if you have multiple data sets)
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
customer
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
type of data (for example, transaction type in financial data)
</p>
</li>
</ul>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 5.0,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/timeseries-collections/#std-label-manual-timeseries-collection">
time series collections
</a>
are the recommended collection type
for time series data. Do
<strong>
not
</strong>
use the bucket pattern in
conjunction with time series collections as this can degrade
performance.
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Consider a collection that stores temperature data obtained from a
sensor. The sensor records the temperature every minute and
stores the data in a collection called
<code class="leafygreen-ui-1l06pbn">
temperatures
</code>
:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"// temperatures collection\n\n{\n \"_id\": 1,\n \"sensor_id\": 12345,\n \"timestamp\": ISODate(\"2019-01-31T10:00:00.000Z\"),\n \"temperature\": 40\n}\n{\n \"_id\": 2,\n \"sensor_id\": 12345,\n \"timestamp\": ISODate(\"2019-01-31T10:01:00.000Z\"),\n \"temperature\": 40\n}\n{\n \"_id\": 3,\n \"sensor_id\": 12345,\n \"timestamp\": ISODate(\"2019-01-31T10:02:00.000Z\"),\n \"temperature\": 41\n}\n...","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-comment">// temperatures collection</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"_id"</span>: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"sensor_id"</span>: <span class="lg-highlight-number">12345</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"timestamp"</span>: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2019-01-31T10:00:00.000Z"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"temperature"</span>: <span class="lg-highlight-number">40</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"_id"</span>: <span class="lg-highlight-number">2</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"sensor_id"</span>: <span class="lg-highlight-number">12345</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"timestamp"</span>: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2019-01-31T10:01:00.000Z"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"temperature"</span>: <span class="lg-highlight-number">40</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"_id"</span>: <span class="lg-highlight-number">3</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"sensor_id"</span>: <span class="lg-highlight-number">12345</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"timestamp"</span>: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2019-01-31T10:02:00.000Z"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"temperature"</span>: <span class="lg-highlight-number">41</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr><tr class=""><td class="leafygreen-ui-7razhx">...</td></tr></tbody></table></code></pre>
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<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
This approach does not scale well in terms of data and index size. For
example, if the application requires indexes on the
<code class="leafygreen-ui-1l06pbn">
sensor_id
</code>
and
<code class="leafygreen-ui-1l06pbn">
timestamp
</code>
fields, every incoming reading from the sensor would need
to be indexed to improve performance.
</p>
<p class="leafygreen-ui-1kp3ins">
You can leverage the document model to bucket the data into documents
that hold the measurements for a particular timespan. Consider
the following updated schema which buckets the readings taken
every minute into hour-long groups:
</p>
<span class="leafygreen-ui-1qnjd6d" id="std-label-bucket-example-doc">
</span>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n \"_id\": 1,\n \"sensor_id\": 12345,\n \"start_date\": ISODate(\"2019-01-31T10:00:00.000Z\"),\n \"end_date\": ISODate(\"2019-01-31T10:59:59.000Z\"),\n \"measurements\": [\n {\n \"timestamp\": ISODate(\"2019-01-31T10:00:00.000Z\"),\n \"temperature\": 40\n },\n {\n \"timestamp\": ISODate(\"2019-01-31T10:01:00.000Z\"),\n \"temperature\": 40\n },\n ...\n {\n \"timestamp\": ISODate(\"2019-01-31T10:42:00.000Z\"),\n \"temperature\": 42\n }\n ],\n \"transaction_count\": 42,\n \"sum_temperature\": 1783\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"_id"</span>: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"sensor_id"</span>: <span class="lg-highlight-number">12345</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"start_date"</span>: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2019-01-31T10:00:00.000Z"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"end_date"</span>: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2019-01-31T10:59:59.000Z"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"measurements"</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"timestamp"</span>: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2019-01-31T10:00:00.000Z"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"temperature"</span>: <span class="lg-highlight-number">40</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"timestamp"</span>: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2019-01-31T10:01:00.000Z"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"temperature"</span>: <span class="lg-highlight-number">40</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"timestamp"</span>: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2019-01-31T10:42:00.000Z"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"temperature"</span>: <span class="lg-highlight-number">42</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"transaction_count"</span>: <span class="lg-highlight-number">42</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"sum_temperature"</span>: <span class="lg-highlight-number">1783</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
This updated schema improves scalability and mirrors how the application
actually uses the data. A user likely wouldn't query for a specific
temperature reading. Instead, a user would likely query for temperature
behavior over the course of an hour or day. The Bucket pattern helps
facilitate those queries by grouping the data into uniform time periods.
</p>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Combine the Computed and Bucket Patterns
<a class="headerlink leafygreen-ui-1kepx47" href="#combine-the-computed-and-bucket-patterns" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="combine-the-computed-and-bucket-patterns">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-bucket-example-doc" target="_self">
<span>
example document
</span>
</a>
contains two computed
fields:
<code class="leafygreen-ui-1l06pbn">
transaction_count
</code>
and
<code class="leafygreen-ui-1l06pbn">
sum_temperature
</code>
. If the
application frequently needs to retrieve the sum of temperatures for a
given hour, computing a running total of the sum can help save
application resources. This Computed Pattern approach eliminates the
need to calculate the sum each time the data is requested.
</p>
<p class="leafygreen-ui-1kp3ins">
The pre-aggregated
<code class="leafygreen-ui-1l06pbn">
sum_temperature
</code>
and
<code class="leafygreen-ui-1l06pbn">
transaction_count
</code>
values
enable further computations such as the average temperature
(
<code class="leafygreen-ui-1l06pbn">
sum_temperature
</code>
/
<code class="leafygreen-ui-1l06pbn">
transaction_count
</code>
) for a particular bucket.
It is much more likely that users will query the application for
the average temperature between 2:00 and 3:00 PM rather than querying
for the specific temperature at 2:03 PM. Bucketing and pre-computing
certain values allows the application to more readily provide that
information.
</p>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Time Representations in MongoDB
<a class="headerlink leafygreen-ui-1kepx47" href="#time-representations-in-mongodb" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="time-representations-in-mongodb">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
MongoDB
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/bson-types/#std-label-document-bson-type-date">
stores times in UTC
</a>
by default,
and converts any local time representations into this form.
Applications that must operate or report on some unmodified local time
value may store the time zone alongside the UTC timestamp, and compute
the original local time in their application logic.
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Example
<a class="headerlink leafygreen-ui-1kepx47" href="#example" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="example">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
In the MongoDB shell, you can store both the current date and the
current client's offset from UTC.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"var now = new Date();\ndb.data.insertOne( { date: now,\n offset: now.getTimezoneOffset() } );","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> now <!-- -->= <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Date</span>(<!-- -->)<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">data</span>.<span class="lg-highlight-title lg-highlight-function">insertOne</span>( <!-- -->{ <span class="lg-highlight-attr">date</span>: <!-- -->now<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">offset</span>: <!-- -->now.<span class="lg-highlight-title lg-highlight-function">getTimezoneOffset</span>(<!-- -->) } )<!-- -->;</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
You can reconstruct the original local time by applying the saved
offset:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"var record = db.data.findOne();\nvar localNow = new Date( record.date.getTime() - ( record.offset * 60000 ) );","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> record <!-- -->= <!-- -->db.<span class="lg-highlight-property">data</span>.<span class="lg-highlight-title lg-highlight-function">findOne</span>(<!-- -->)<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> localNow <!-- -->= <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Date</span>( <!-- -->record.<span class="lg-highlight-property">date</span>.<span class="lg-highlight-title lg-highlight-function">getTime</span>(<!-- -->) <!-- -->- <!-- -->( <!-- -->record.<span class="lg-highlight-property">offset</span> <!-- -->* <span class="lg-highlight-number">60000</span> ) )<!-- -->;</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/method/sh.removeRangeFromZone/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
sh.removeRangeFromZone()
<a class="headerlink leafygreen-ui-1kepx47" href="#sh.removerangefromzone--" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="sh.removerangefromzone--">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#definition" target="_self">
<span>
Definition
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#behavior" target="_self">
<span>
Behavior
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#example" target="_self">
<span>
Example
</span>
</a>
</li>
</ul>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Definition
<a class="headerlink leafygreen-ui-1kepx47" href="#definition" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="definition">
</div>
</a>
</h2>
<dl class="method">
<dt>
<code class="leafygreen-ui-1l06pbn">
sh.removeRangeFromZone(namespace, minimum, maximum)
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-method-sh.removeRangeFromZone" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-method-sh.removeRangeFromZone">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Removes the association between a range of shard key values and a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-zone">
zone
<!-- -->
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
sh.removeRangeFromZone()
</code>
takes the following fields:
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:20%"/>
<col style="width:20%"/>
<col style="width:80%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Parameter
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Type
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
namespace
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
string
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-namespace">
namespace
</a>
of the sharded collection to associate with the zone.
</p>
<p class="leafygreen-ui-1kp3ins">
The collection must be sharded for the operation to succeed.
</p>
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
minimum
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
document
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
The inclusive lower bound of the range of
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-shard-key">
shard key
</a>
values.
</p>
<p class="leafygreen-ui-1kp3ins">
Specify each field of the shard key in the form of
<code class="leafygreen-ui-1l06pbn">
<fieldname> : <value>
</code>
.
The value must be of the same BSON type or types as the shard key.
</p>
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
maximum
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
document
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
The exclusive upper bound of the range of
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-shard-key">
shard key
</a>
values.
</p>
<p class="leafygreen-ui-1kp3ins">
Specify each field of the shard key in the form of
<code class="leafygreen-ui-1l06pbn">
<fieldname> : <value>
</code>
.
The value must be of the same BSON type or types as the shard key.
</p>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<p class="leafygreen-ui-1kp3ins">
Use
<code class="leafygreen-ui-1l06pbn">
sh.removeRangeFromZone()
</code>
to remove the association between
unused, out of date, or conflicting shard key ranges and a zone.
</p>
<p class="leafygreen-ui-1kp3ins">
If no range matches the minimum and maximum bounds passed to
<code class="leafygreen-ui-1l06pbn">
sh.removeRangeFromZone()
</code>
, nothing is removed.
</p>
<p class="leafygreen-ui-1kp3ins">
Only run
<code class="leafygreen-ui-1l06pbn">
sh.removeRangeFromZone()
</code>
when connected to a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instance.
</p>
</dd>
</dl>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Behavior
<a class="headerlink leafygreen-ui-1kepx47" href="#behavior" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="behavior">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
sh.removeRangeFromZone()
</code>
doesn't remove the association between
a zone and a shard. It also doesn't remove the zone itself.
</p>
<p class="leafygreen-ui-1kp3ins">
See the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/zone-sharding/#std-label-zone-sharding">
zone
</a>
manual page for more information on zones
in sharded clusters.
</p>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Balancer
<a class="headerlink leafygreen-ui-1kepx47" href="#balancer" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="balancer">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Removing the association between a range and a zone removes the constraints
keeping chunks covered by the range on the shards inside that zone. During the
next balancer round, the balancer may migrate chunks that were previously
covered by the zone.
</p>
<p class="leafygreen-ui-1kp3ins">
See the documentation for the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/sharding-balancer-administration/#std-label-sharding-balancing">
sharded cluster balancer
</a>
for more information on how migrations work in a sharded
cluster.
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Security
<a class="headerlink leafygreen-ui-1kepx47" href="#security" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="security">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
For sharded clusters running with
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/authentication/#std-label-authentication">
authentication
</a>
, you
must authenticate as either:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
a user whose privileges include the specified actions on various
collections in the
<code class="leafygreen-ui-1l06pbn">
config
</code>
database:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/privilege-actions/#mongodb-authaction-find">
<code class="leafygreen-ui-1l06pbn">
find
</code>
</a>
on the
<code class="leafygreen-ui-1l06pbn">
config.shards
</code>
collection
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/privilege-actions/#mongodb-authaction-find">
<code class="leafygreen-ui-1l06pbn">
find
</code>
</a>
,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/privilege-actions/#mongodb-authaction-update">
<code class="leafygreen-ui-1l06pbn">
update
</code>
</a>
, and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/privilege-actions/#mongodb-authaction-remove">
<code class="leafygreen-ui-1l06pbn">
remove
</code>
</a>
on the
<code class="leafygreen-ui-1l06pbn">
config.tags
</code>
collection;
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
or, alternatively
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
a user whose privileges include
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/privilege-actions/#mongodb-authaction-enableSharding">
<code class="leafygreen-ui-1l06pbn">
enableSharding
</code>
</a>
on the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/resource-document/#std-label-resource-specific-collection">
cluster
</a>
resource.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/built-in-roles/#mongodb-authrole-clusterAdmin">
<code class="leafygreen-ui-1l06pbn">
clusterAdmin
</code>
</a>
or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/built-in-roles/#mongodb-authrole-clusterManager">
<code class="leafygreen-ui-1l06pbn">
clusterManager
</code>
</a>
built-in roles have
the appropriate permissions for running
<code class="leafygreen-ui-1l06pbn">
sh.removeRangeFromZone()
</code>
.
See the documentation page for
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/authorization/#std-label-authorization">
Role-Based Access Control
</a>
for more information.
</p>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Example
<a class="headerlink leafygreen-ui-1kepx47" href="#example" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="example">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
Given a sharded collection
<code class="leafygreen-ui-1l06pbn">
exampledb.collection
</code>
with a shard key of
<code class="leafygreen-ui-1l06pbn">
{ a
: 1 }
</code>
, the following operation removes the range with a lower bound of
<code class="leafygreen-ui-1l06pbn">
1
</code>
and an upper bound of
<code class="leafygreen-ui-1l06pbn">
10
</code>
:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"sh.removeRangeFromZone( \"exampledb.collection\",\n { a : 1 },\n { a : 10 }\n )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">sh.<span class="lg-highlight-title lg-highlight-function">removeRangeFromZone</span>( <span class="lg-highlight-string">"exampledb.collection"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <!-- -->a <!-- -->: <span class="lg-highlight-number">1</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <!-- -->a <!-- -->: <span class="lg-highlight-number">10</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
min
</code>
and
<code class="leafygreen-ui-1l06pbn">
max
</code>
must match exactly the bounds of the target range.
The following operation attempts to remove the previously created range, but
specifies
<code class="leafygreen-ui-1l06pbn">
{ a : 0 }
</code>
as the
<code class="leafygreen-ui-1l06pbn">
min
</code>
bound:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"admin = db.getSiblingDB(\"admin\")\nadmin.runCommand(\n {\n updateZoneKeyRange : \"exampledb.collection\",\n min : { a : 0 },\n max : { a : 10 },\n zone : null\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">admin <!-- -->= <!-- -->db.<span class="lg-highlight-title lg-highlight-function">getSiblingDB</span>(<span class="lg-highlight-string">"admin"</span>)</td></tr><tr class=""><td class="leafygreen-ui-7razhx">admin.<span class="lg-highlight-title lg-highlight-function">runCommand</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->updateZoneKeyRange <!-- -->: <span class="lg-highlight-string">"exampledb.collection"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->min <!-- -->: <!-- -->{ <!-- -->a <!-- -->: <span class="lg-highlight-number">0</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->max <!-- -->: <!-- -->{ <!-- -->a <!-- -->: <span class="lg-highlight-number">10</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->zone <!-- -->: <span class="lg-highlight-literal">null</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
While the range of
<code class="leafygreen-ui-1l06pbn">
{ a : 0 }
</code>
and
<code class="leafygreen-ui-1l06pbn">
{ a : 10 }
</code>
encompasses the existing
range, it is not an exact match and therefore
<code class="leafygreen-ui-1l06pbn">
sh.removeRangeFromZone()
</code>
does not remove anything.
</p>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Compound Shard Key
<a class="headerlink leafygreen-ui-1kepx47" href="#compound-shard-key" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="compound-shard-key">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Given a sharded collection
<code class="leafygreen-ui-1l06pbn">
exampledb.collection
</code>
with a shard key of
<code class="leafygreen-ui-1l06pbn">
{ a : 1, b : 1 }
</code>
, the following operation removes the range with a lower
bound of
<code class="leafygreen-ui-1l06pbn">
{ a : 1, b : 1}
</code>
and an upper bound of
<code class="leafygreen-ui-1l06pbn">
{ a : 10, b : 10 }
</code>
:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"sh.removeRangeFromZone( \"exampledb.collection\",\n { a : 1, b : 1 },\n { a : 10, b : 10 }\n )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">sh.<span class="lg-highlight-title lg-highlight-function">removeRangeFromZone</span>( <span class="lg-highlight-string">"exampledb.collection"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <!-- -->a <!-- -->: <span class="lg-highlight-number">1</span>, <!-- -->b <!-- -->: <span class="lg-highlight-number">1</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <!-- -->a <!-- -->: <span class="lg-highlight-number">10</span>, <!-- -->b <!-- -->: <span class="lg-highlight-number">10</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Given the previous example, if there was an existing range with a lower bound
of
<code class="leafygreen-ui-1l06pbn">
{ a : 1, b : 5 }
</code>
and an upper bound of
<code class="leafygreen-ui-1l06pbn">
{ a : 10, b : 1 }
</code>
, the
operation would
<em>
not
</em>
remove that range, as it is not an exact match of the
minimum and maximum passed to
<code class="leafygreen-ui-1l06pbn">
sh.removeRangeFromZone()
</code>
.
</p>
</section>
</section>
</section>
|
https://www.mongodb.com/docs/manual/core/sharded-cluster-config-servers/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Config Servers
<a class="headerlink leafygreen-ui-1kepx47" href="#config-servers" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="config-servers">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#replica-set-config-servers" target="_self">
<span>
Replica Set Config Servers
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#read-and-write-operations-on-config-servers" target="_self">
<span>
Read and Write Operations on Config Servers
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#config-server-availability" target="_self">
<span>
Config Server Availability
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#sharded-cluster-metadata" target="_self">
<span>
Sharded Cluster Metadata
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#sharded-cluster-security" target="_self">
<span>
Sharded Cluster Security
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#config-shards" target="_self">
<span>
Config Shards
</span>
</a>
</li>
</ul>
</div>
<p class="leafygreen-ui-1kp3ins">
Config servers store the metadata for a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-sharded-cluster">
sharded cluster
</a>
. The metadata
reflects state and organization for all data and components within the
sharded cluster. The metadata includes the list of chunks on every shard and
the ranges that define the chunks.
</p>
<p class="leafygreen-ui-1kp3ins">
The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instances cache this data and use it to route
read and write operations to the correct shards.
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
updates the cache when there are metadata changes for the cluster, such
as
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/add-shards-to-shard-cluster/#std-label-sharding-procedure-add-shard">
adding a shard
</a>
. Shards also read
chunk metadata from the config servers.
</p>
<p class="leafygreen-ui-1kp3ins">
The config servers also store
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/authentication/#std-label-authentication">
Authentication on Self-Managed Deployments
</a>
configuration
information such as
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/authorization/#std-label-authorization">
Role-Based Access
Control
</a>
or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/security-internal-authentication/#std-label-replica-set-security">
internal
authentication
</a>
settings for the cluster.
</p>
<p class="leafygreen-ui-1kp3ins">
MongoDB also uses the config servers to manage distributed locks.
</p>
<p class="leafygreen-ui-1kp3ins">
Each sharded cluster must have its own config servers. Do not use the
same config servers for different sharded clusters.
</p>
<div class="leafygreen-ui-1sjx7ru" role="note">
<h2 class="leafygreen-ui-29m78u">
Warning
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Administrative operations conducted on config servers may have significant
impact on sharded cluster performance and availability. Depending on the
number of config servers impacted, the cluster may be read-only or
offline for a period of time.
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 8.0, you can configure a config server to store
application data in addition to the usual sharded cluster metadata. The
config server is then known as a
<em>
config shard
</em>
. You'll learn more later
on this page in the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-sharded-cluster-config-server-config-shards" target="_self">
<span>
Config Shards
</span>
</a>
section.
</p>
<span class="leafygreen-ui-1qnjd6d" id="std-label-csrs">
</span>
<span class="leafygreen-ui-1qnjd6d" id="std-label-replset-config-servers">
</span>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Replica Set Config Servers
<a class="headerlink leafygreen-ui-1kepx47" href="#replica-set-config-servers" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="replica-set-config-servers">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The following restrictions apply to a replica set configuration when used
for config servers:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Must have zero
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/replica-set-arbiter/#std-label-replica-set-arbiter-configuration">
arbiters
<!-- -->
.
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Must have no
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/replica-set-delayed-member/">
delayed members
<!-- -->
.
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Must build indexes (i.e. no member should have
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-configuration/#mongodb-rsconf-rsconf.members-n-.buildIndexes">
<code class="leafygreen-ui-1l06pbn">
members[n].buildIndexes
</code>
</a>
setting set to false).
</p>
</li>
</ul>
<span class="leafygreen-ui-1qnjd6d" id="std-label-config-server-read-write-ops">
</span>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Read and Write Operations on Config Servers
<a class="headerlink leafygreen-ui-1kepx47" href="#read-and-write-operations-on-config-servers" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="read-and-write-operations-on-config-servers">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
admin
</code>
database and the
<code class="leafygreen-ui-1l06pbn">
config
</code>
database exist on the config
servers.
</p>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Writes to Config Servers
<a class="headerlink leafygreen-ui-1kepx47" href="#writes-to-config-servers" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="writes-to-config-servers">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
admin
</code>
database contains the collections related to the
authentication and authorization as well as the other
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/system-collections/#std-label-metadata-system-collections">
system.*
collections
</a>
for internal use.
</p>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
config
</code>
database contains the
collections that contain the sharded cluster metadata. MongoDB writes
data to the
<code class="leafygreen-ui-1l06pbn">
config
</code>
database when the metadata changes, such as after
a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/sharding-balancer-administration/#std-label-sharding-balancing">
chunk migration
</a>
or a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/sharding-data-partitioning/#std-label-sharding-data-partitioning">
chunk split
<!-- -->
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
Users should avoid writing directly to the config database in the
course of normal operation or maintenance.
</p>
<p class="leafygreen-ui-1kp3ins">
When writing to the config servers, MongoDB uses a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/write-concern/#std-label-wc-w">
write concern
</a>
of
<code class="leafygreen-ui-1l06pbn">
"majority"
</code>
.
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Reads from Config Servers
<a class="headerlink leafygreen-ui-1kepx47" href="#reads-from-config-servers" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="reads-from-config-servers">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
MongoDB reads from the
<code class="leafygreen-ui-1l06pbn">
admin
</code>
database for authentication and
authorization data and other internal uses.
</p>
<p class="leafygreen-ui-1kp3ins">
MongoDB reads from the
<code class="leafygreen-ui-1l06pbn">
config
</code>
database when a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
starts or after a change in the metadata, such as after a chunk
migration. Shards also read chunk metadata from the config servers.
</p>
<p class="leafygreen-ui-1kp3ins">
When reading from the replica set config servers, MongoDB uses a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/read-concern/#std-label-read-concern">
Read Concern
</a>
level of
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/read-concern-majority/#mongodb-readconcern-readconcern.-majority-">
<code class="leafygreen-ui-1l06pbn">
"majority"
</code>
.
</a>
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Metadata Views Must be Up-to-Date
<a class="headerlink leafygreen-ui-1kepx47" href="#metadata-views-must-be-up-to-date" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="metadata-views-must-be-up-to-date">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
For an operation to succeed, the view of the metadata on the specific
shard member must be up-to-date. The shard and the router issuing the
request must have the same version of the chunks metadata.
</p>
<p class="leafygreen-ui-1kp3ins">
If the metadata is not up-to-date, the operation fails with the
<code class="leafygreen-ui-1l06pbn">
StaleConfig
</code>
error and the metadata refresh process is triggered.
Refreshing the metadata can introduce additional operational latency.
</p>
<p class="leafygreen-ui-1kp3ins">
On a secondary, a metadata refresh can take a long time if there
is significant replication lag. For secondary reads, set
<code class="leafygreen-ui-1l06pbn">
maxStalenessSeconds
</code>
to minimize the impact of replication lag.
</p>
<span class="leafygreen-ui-1qnjd6d" id="std-label-config-server-availability">
</span>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Config Server Availability
<a class="headerlink leafygreen-ui-1kepx47" href="#config-server-availability" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="config-server-availability">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
If the config server replica set loses its primary and cannot elect a
primary, the cluster's metadata becomes
<em>
read only
</em>
. You can still read
and write data from the shards, but no chunk migration or chunk splits
will occur until the replica set can elect a primary.
</p>
<p class="leafygreen-ui-1kp3ins">
In a sharded cluster,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instances
monitor the replica sets in the sharded cluster (e.g. shard replica
sets, config server replica set).
</p>
<p class="leafygreen-ui-1kp3ins">
If all config servers become unavailable, the cluster can become
inoperable. To ensure that the config servers remain available and
intact, backups of config servers are critical. The data on the config
server is small compared to the data stored in a cluster, and the
config server has a relatively low activity load.
</p>
<p class="leafygreen-ui-1kp3ins">
See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/troubleshoot-sharded-clusters/#std-label-sharding-config-servers-and-availability">
A Config Server Replica Set Member Become Unavailable
</a>
for more
information.
</p>
<span class="leafygreen-ui-1qnjd6d" id="std-label-sharding-internals-config-database">
</span>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Sharded Cluster Metadata
<a class="headerlink leafygreen-ui-1kepx47" href="#sharded-cluster-metadata" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="sharded-cluster-metadata">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
Config servers store metadata in the
<code class="leafygreen-ui-1l06pbn">
config
</code>
database.
</p>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Always back up the
<code class="leafygreen-ui-1l06pbn">
config
</code>
database before doing any
maintenance on the config server.
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To access the
<code class="leafygreen-ui-1l06pbn">
config
</code>
database, issue the following command in
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
:
</span>
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"use config","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">use config</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
In general, you should
<em>
never
</em>
edit the content of the
<code class="leafygreen-ui-1l06pbn">
config
</code>
database directly. The
<code class="leafygreen-ui-1l06pbn">
config
</code>
database contains the following
collections:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/config-database/#mongodb-data-config.changelog">
<code class="leafygreen-ui-1l06pbn">
changelog
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/config-database/#mongodb-data-config.chunks">
<code class="leafygreen-ui-1l06pbn">
chunks
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/config-database/#mongodb-data-config.collections">
<code class="leafygreen-ui-1l06pbn">
collections
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/config-database/#mongodb-data-config.databases">
<code class="leafygreen-ui-1l06pbn">
databases
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/config-database/#mongodb-data-config.csrs.indexes">
<code class="leafygreen-ui-1l06pbn">
csrs.indexes
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/config-database/#mongodb-data-config.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/config-database/#mongodb-data-config.settings">
<code class="leafygreen-ui-1l06pbn">
settings
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/config-database/#mongodb-data-config.shards">
<code class="leafygreen-ui-1l06pbn">
shards
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/config-database/#mongodb-data-config.version">
<code class="leafygreen-ui-1l06pbn">
version
</code>
</a>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
For more information on these collections and their role in sharded
clusters, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/config-database/#std-label-config-database">
Config Database
</a>
. See
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-config-server-read-write-ops" target="_self">
<span>
Read and Write Operations on Config Servers
</span>
</a>
for more information about reads
and updates to the metadata.
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Sharded Cluster Security
<a class="headerlink leafygreen-ui-1kepx47" href="#sharded-cluster-security" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="sharded-cluster-security">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
Use
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/security-internal-authentication/#std-label-inter-process-auth">
Self-Managed Internal/Membership Authentication
</a>
to enforce intra-cluster
security and prevent unauthorized cluster components from accessing the
cluster. You must start each
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
in the cluster with the
appropriate security settings in order to enforce internal authentication.
</p>
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 5.3,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/security-scram/#std-label-authentication-scram-sha-1">
SCRAM-SHA-1
</a>
cannot be used for intra-cluster authentication. Only
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/security-scram/#std-label-authentication-scram-sha-256">
SCRAM-SHA-256
</a>
is supported.
</p>
<p class="leafygreen-ui-1kp3ins">
In previous MongoDB versions, SCRAM-SHA-1 and SCRAM-SHA-256 can both be
used for intra-cluster authentication, even if SCRAM is not explicitly
enabled.
</p>
<p class="leafygreen-ui-1kp3ins">
See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/deploy-sharded-cluster-with-keyfile-access-control/#std-label-deploy-cluster-with-keyfile-auth">
Deploy Self-Managed Sharded Cluster with Keyfile Authentication
</a>
for a tutorial on
deploying a secured sharded cluster.
</p>
<span class="leafygreen-ui-1qnjd6d" id="std-label-sharded-cluster-config-server-config-shards">
</span>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Config Shards
<a class="headerlink leafygreen-ui-1kepx47" href="#config-shards" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="config-shards">
</div>
</a>
</h2>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
8.0
</em>
.
</p>
</div>
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 8.0, you can:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Configure a config server to store your application data in
addition to the usual
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-sharded-cluster">
sharded cluster
</a>
metadata. A config
server that stores application data is called a
<em>
config shard
</em>
.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Transition a config server between being a config
shard and a dedicated config server.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
A cluster requires a config server, but it can be a config
shard instead of a dedicated config server. Using a config shard reduces
the number of nodes required and can simplify your deployment.
</p>
<p class="leafygreen-ui-1kp3ins">
If your application has demanding availability and resiliency
requirements, consider deploying a dedicated config server. A dedicated
config server provides isolation, dedicated resources, and consistent
performance for critical cluster operations.
</p>
<p class="leafygreen-ui-1kp3ins">
You cannot use the same config shard for multiple sharded clusters.
</p>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Commands
<a class="headerlink leafygreen-ui-1kepx47" href="#commands" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="commands">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
To configure a dedicated config server to run as a config shard, run the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/transitionFromDedicatedConfigServer/#mongodb-dbcommand-dbcmd.transitionFromDedicatedConfigServer">
<code class="leafygreen-ui-1l06pbn">
transitionFromDedicatedConfigServer
</code>
</a>
command.
</p>
<p class="leafygreen-ui-1kp3ins">
To configure a config shard to run as a dedicated config server, run the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/transitionToDedicatedConfigServer/#mongodb-dbcommand-dbcmd.transitionToDedicatedConfigServer">
<code class="leafygreen-ui-1l06pbn">
transitionToDedicatedConfigServer
</code>
</a>
command.
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Users
<a class="headerlink leafygreen-ui-1kepx47" href="#users" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="users">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
A user created on a config shard has the same behavior as a user created
on a dedicated config server.
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Config Shard Identity Document
<a class="headerlink leafygreen-ui-1kepx47" href="#config-shard-identity-document" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="config-shard-identity-document">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
To identify the config server as a config shard, inspect the document in
the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/system-collections/#mongodb-data-admin.system.version">
<code class="leafygreen-ui-1l06pbn">
admin.system.version
</code>
</a>
collection. In this example,
<code class="leafygreen-ui-1l06pbn">
shardName
</code>
is set to
<code class="leafygreen-ui-1l06pbn">
'config'
</code>
:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n _id: 'shardIdentity',\n shardName: 'config',\n clusterId: ObjectId(\"<objectid>\"),\n configsvrConnectionString: '<config>',\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-string">'shardIdentity'</span>,</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">shardName</span>: <span class="lg-highlight-string">'config'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">clusterId</span>: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"<objectID>"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">configsvrConnectionString</span>: <span class="lg-highlight-string">'<config server replica set connection string>'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The following example retrieves a shard identity document from
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/system-collections/#mongodb-data-admin.system.version">
<code class="leafygreen-ui-1l06pbn">
admin.system.version
</code>
</a>
in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-admin-database">
admin database
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"use admin\ndb.system.version.find()","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">use admin</td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">system</span>.<span class="lg-highlight-property">version</span>.<span class="lg-highlight-title lg-highlight-function">find</span>(<!-- -->)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Output extract:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n _id: 'shardIdentity',\n shardName: 'config',\n clusterId: ObjectId(\"6441bdd6779584849dcac095\"),\n configsvrConnectionString: 'configRepl/localhost:27007'\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-string">'shardIdentity'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">shardName</span>: <span class="lg-highlight-string">'config'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">clusterId</span>: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"6441bdd6779584849dcac095"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">configsvrConnectionString</span>: <span class="lg-highlight-string">'configRepl/localhost:27007'</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-sharded-cluster-config-server-config-shards-downgrade">
</span>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Downgrade Feature Compatibility Version
<a class="headerlink leafygreen-ui-1kepx47" href="#downgrade-feature-compatibility-version" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="downgrade-feature-compatibility-version">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
If your cluster has a config shard and you need to downgrade the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/setFeatureCompatibilityVersion/#std-label-view-fcv">
feature compatibility version
</a>
to earlier than 8.0,
connect to
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
and perform this procedure:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"HowTo","steps":[{"@type":"HowToStep","text":"To begin configuring a config shard to run as a dedicated config\nserver, run transitionToDedicatedConfigServer:","name":"Configure a config shard to run as a dedicated config server."},{"@type":"HowToStep","text":"To list all the databases in the cluster, run\nlistDatabases:Exclude admin and config databases.For each database, list all of the collections in the database.To list all of the collections in the database, run\nlistCollections.Exclude collections starting with system.","name":"List all of the databases and collections in the cluster."},{"@type":"HowToStep","text":"To move the collection to a new shard, run\nmoveCollection:","name":"For each non-system collection, move the collection to a new shard."},{"@type":"HowToStep","text":"To verify the balancer has moved sharded collection data off the\nconfig server, run transitionToDedicatedConfigServer again:The response after a successful data move contains state:\n\"completed\". If the response contains\nstate: \"pendingDataCleanup\", wait a moment then continue\ncalling transitionToDedicatedConfigServer until the command\nresponse contains state: \"completed\". For full response\ndetails, see removeShard.","name":"Wait for balancer to move sharded collection data off config server."},{"@type":"HowToStep","text":"To set the feature compatibility version, run\nsetFeatureCompatibilityVersion:","name":"Set the feature compatibility version."}],"name":"Downgrade Feature Compatibility Version","image":"https://webimages.mongodb.com/_com_assets/cms/kuyj2focmkbxv7gh3-stacked_default_slate_blue.svg?auto=format%252Ccompress"}
</script>
<div class="css-4nyere eccljxs0">
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
1
</div>
</div>
<div class="css-1ed38mk">
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Configure a config shard to run as a dedicated config server.
<a class="headerlink leafygreen-ui-1kepx47" href="#configure-a-config-shard-to-run-as-a-dedicated-config-server." title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="configure-a-config-shard-to-run-as-a-dedicated-config-server.">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
To begin configuring a config shard to run as a dedicated config
server, run
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/transitionToDedicatedConfigServer/#mongodb-dbcommand-dbcmd.transitionToDedicatedConfigServer">
<code class="leafygreen-ui-1l06pbn">
transitionToDedicatedConfigServer
</code>
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand( {\n transitionToDedicatedConfigServer: 1\n} )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>( <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">transitionToDedicatedConfigServer</span>: <span class="lg-highlight-number">1</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">} )</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</button>
</div>
</div>
</div>
</div>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
2
</div>
</div>
<div class="css-1ed38mk">
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
List all of the databases and collections in the cluster.
<a class="headerlink leafygreen-ui-1kepx47" href="#list-all-of-the-databases-and-collections-in-the-cluster." title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="list-all-of-the-databases-and-collections-in-the-cluster.">
</div>
</a>
</h4>
<ol class="leafygreen-ui-rioki0" type="a">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
To list all the databases in the cluster, run
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/listDatabases/#mongodb-dbcommand-dbcmd.listDatabases">
<code class="leafygreen-ui-1l06pbn">
listDatabases
</code>
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand( { listDatabases: 1, nameOnly: true } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>( <!-- -->{ <span class="lg-highlight-attr">listDatabases</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-attr">nameOnly</span>: <span class="lg-highlight-literal">true</span> } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Exclude
<code class="leafygreen-ui-1l06pbn">
admin
</code>
and
<code class="leafygreen-ui-1l06pbn">
config
</code>
databases.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For each database, list all of the collections in the database.
</p>
<p class="leafygreen-ui-1kp3ins">
To list all of the collections in the database, run
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/listCollections/#mongodb-dbcommand-dbcmd.listCollections">
<code class="leafygreen-ui-1l06pbn">
listCollections
</code>
.
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand(\n {\n listCollections: 1,\n nameOnly: true,\n filter: { type: { $ne: \"view\" } }\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">listCollections</span>: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">nameOnly</span>: <span class="lg-highlight-literal">true</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">filter</span>: <!-- -->{ <span class="lg-highlight-attr">type</span>: <!-- -->{ <span class="lg-highlight-attr">$ne</span>: <span class="lg-highlight-string">"view"</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Exclude collections starting with
<code class="leafygreen-ui-1l06pbn">
system
</code>
.
</p>
</li>
</ol>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
3
</div>
</div>
<div class="css-1ed38mk">
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
For each non-system collection, move the collection to a new shard.
<a class="headerlink leafygreen-ui-1kepx47" href="#for-each-non-system-collection--move-the-collection-to-a-new-shard." title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="for-each-non-system-collection--move-the-collection-to-a-new-shard.">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
To move the collection to a new shard, run
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/moveCollection/#mongodb-dbcommand-dbcmd.moveCollection">
<code class="leafygreen-ui-1l06pbn">
moveCollection
</code>
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand(\n {\n moveCollection: \"<database>.<collection>\",\n toShard: \"<new>\",\n }\n )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">moveCollection</span>: <span class="lg-highlight-string">"<database>.<collection>"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">toShard</span>: <span class="lg-highlight-string">"<new shard>"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->}</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
4
</div>
</div>
<div class="css-1ed38mk">
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Wait for balancer to move sharded collection data off config server.
<a class="headerlink leafygreen-ui-1kepx47" href="#wait-for-balancer-to-move-sharded-collection-data-off-config-server." title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="wait-for-balancer-to-move-sharded-collection-data-off-config-server.">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
To verify the balancer has moved sharded collection data off the
config server, run
<code class="leafygreen-ui-1l06pbn">
transitionToDedicatedConfigServer
</code>
again:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand( {\n transitionToDedicatedConfigServer: 1\n} )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>( <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">transitionToDedicatedConfigServer</span>: <span class="lg-highlight-number">1</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">} )</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The response after a successful data move contains
<code class="leafygreen-ui-1l06pbn">
state:
"completed"
</code>
. If the response contains
<code class="leafygreen-ui-1l06pbn">
state: "pendingDataCleanup"
</code>
, wait a moment then continue
calling
<code class="leafygreen-ui-1l06pbn">
transitionToDedicatedConfigServer
</code>
until the command
response contains
<code class="leafygreen-ui-1l06pbn">
state: "completed"
</code>
. For full response
details, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/removeShard/#mongodb-dbcommand-dbcmd.removeShard">
<code class="leafygreen-ui-1l06pbn">
removeShard
</code>
.
</a>
</p>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
5
</div>
</div>
<div class="css-1ed38mk">
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Set the feature compatibility version.
<a class="headerlink leafygreen-ui-1kepx47" href="#set-the-feature-compatibility-version." title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="set-the-feature-compatibility-version.">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
To set the feature compatibility version, run
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/setFeatureCompatibilityVersion/#mongodb-dbcommand-dbcmd.setFeatureCompatibilityVersion">
<code class="leafygreen-ui-1l06pbn">
setFeatureCompatibilityVersion
</code>
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand( { setFeatureCompatibilityVersion: \"7.0\" } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>( <!-- -->{ <span class="lg-highlight-attr">setFeatureCompatibilityVersion</span>: <span class="lg-highlight-string">"7.0"</span> } )</td></tr></tbody></table></code></pre>
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</div>
</div>
</div>
</div>
</section>
</div>
</div>
</div>
</section>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/operator/aggregation/match/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
$match (aggregation)
<a class="headerlink leafygreen-ui-1kepx47" href="#-match--aggregation-" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="-match--aggregation-">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#definition" target="_self">
<span>
Definition
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#compatibility" target="_self">
<span>
Compatibility
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#syntax" target="_self">
<span>
Syntax
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#behavior" target="_self">
<span>
Behavior
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#pipeline-optimization" target="_self">
<span>
Pipeline Optimization
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#expressions-in-query-predicates" target="_self">
<span>
Expressions in Query Predicates
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#0--null--false-or-missing-values" target="_self">
<span>
0, Null, False or Missing Values
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#restrictions" target="_self">
<span>
Restrictions
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#filter-data-on-atlas-by-using-atlas-search" target="_self">
<span>
Filter Data on Atlas by Using Atlas Search
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#examples" target="_self">
<span>
Examples
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#equality-match" target="_self">
<span>
Equality Match
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#perform-a-count" target="_self">
<span>
Perform a Count
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#additional-information" target="_self">
<span>
Additional Information
</span>
</a>
</li>
</ul>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Definition
<a class="headerlink leafygreen-ui-1kepx47" href="#definition" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="definition">
</div>
</a>
</h2>
<dl class="pipeline">
<dt>
<code class="leafygreen-ui-1l06pbn">
$match
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-pipeline-pipe.-match" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-pipeline-pipe.-match">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Filters documents based on a specified
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-query-predicate">
query predicate
</a>
.
Matched documents are passed to the next pipeline stage.
</p>
</dd>
</dl>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Compatibility
<a class="headerlink leafygreen-ui-1kepx47" href="#compatibility" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="compatibility">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
You can use
<code class="leafygreen-ui-1l06pbn">
$match
</code>
for deployments hosted in the following
environments:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas?tck=docs_server" target="_self">
<span>
MongoDB Atlas
</span>
</a>
: The fully
managed service for MongoDB deployments in the cloud
</p>
</li>
</ul>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/install-enterprise/#std-label-install-mdb-enterprise">
MongoDB Enterprise
</a>
: The
subscription-based, self-managed version of MongoDB
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/install-community/#std-label-install-mdb-community-edition">
MongoDB Community
</a>
: The
source-available, free-to-use, and self-managed version of MongoDB
</p>
</li>
</ul>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Syntax
<a class="headerlink leafygreen-ui-1kepx47" href="#syntax" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="syntax">
</div>
</a>
</h2>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ $match: { <query> } }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-attr">$match</span>: <!-- -->{ <span class="lg-highlight-tag lg-highlight-xml"><</span><span class="lg-highlight-name lg-highlight-tag lg-highlight-xml">query</span><span class="lg-highlight-tag lg-highlight-xml"> </span><span class="lg-highlight-attr lg-highlight-tag lg-highlight-xml">predicate</span><span class="lg-highlight-tag lg-highlight-xml">></span><span class="lg-highlight-xml"> } }</span></td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The syntax for the
<code class="leafygreen-ui-1l06pbn">
$match
</code>
query predicate is identical to the syntax
used in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.find/#std-label-method-find-query">
query
</a>
argument of a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.find/#mongodb-method-db.collection.find">
<code class="leafygreen-ui-1l06pbn">
find()
</code>
</a>
command.
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Behavior
<a class="headerlink leafygreen-ui-1kepx47" href="#behavior" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="behavior">
</div>
</a>
</h2>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Pipeline Optimization
<a class="headerlink leafygreen-ui-1kepx47" href="#pipeline-optimization" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="pipeline-optimization">
</div>
</a>
</h3>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Place the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-pipeline-pipe.-match" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$match
</code>
</span>
</a>
as early in the aggregation
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-pipeline">
pipeline
</a>
as possible. Because
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-pipeline-pipe.-match" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$match
</code>
</span>
</a>
limits
the total number of documents in the aggregation pipeline,
earlier
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-pipeline-pipe.-match" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$match
</code>
</span>
</a>
operations minimize the amount of
processing down the pipe.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
If you place a
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-pipeline-pipe.-match" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$match
</code>
</span>
</a>
at the very beginning of a
pipeline, the query can take advantage of
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-index">
indexes
</a>
like any other
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.find/#mongodb-method-db.collection.find">
<code class="leafygreen-ui-1l06pbn">
db.collection.find()
</code>
</a>
or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.findOne/#mongodb-method-db.collection.findOne">
<code class="leafygreen-ui-1l06pbn">
db.collection.findOne()
</code>
.
</a>
</p>
</li>
</ul>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Expressions in Query Predicates
<a class="headerlink leafygreen-ui-1kepx47" href="#expressions-in-query-predicates" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="expressions-in-query-predicates">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
To include
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/#std-label-aggregation-expressions">
expressions
</a>
in a query
predicate, use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/expr/#mongodb-query-op.-expr">
<code class="leafygreen-ui-1l06pbn">
$expr
</code>
</a>
operator.
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
0, Null, False or Missing Values
<a class="headerlink leafygreen-ui-1kepx47" href="#0--null--false-or-missing-values" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="0--null--false-or-missing-values">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
A
<code class="leafygreen-ui-1l06pbn">
$match
</code>
stage filters out a document from pipeline results if one
of the following conditions applies:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
$match
</code>
query predicate returns a
<code class="leafygreen-ui-1l06pbn">
0
</code>
,
<code class="leafygreen-ui-1l06pbn">
null
</code>
, or
<code class="leafygreen-ui-1l06pbn">
false
</code>
value on that document.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
$match
</code>
query predicate uses a field that is missing from
that document.
</p>
</li>
</ul>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Restrictions
<a class="headerlink leafygreen-ui-1kepx47" href="#restrictions" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="restrictions">
</div>
</a>
</h3>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
You cannot use
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/where/#mongodb-query-op.-where">
<code class="leafygreen-ui-1l06pbn">
$where
</code>
</a>
in a
<code class="leafygreen-ui-1l06pbn">
$match
</code>
stage.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
You cannot use
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/near/#mongodb-query-op.-near">
<code class="leafygreen-ui-1l06pbn">
$near
</code>
</a>
or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/nearSphere/#mongodb-query-op.-nearSphere">
<code class="leafygreen-ui-1l06pbn">
$nearSphere
</code>
</a>
in a
<code class="leafygreen-ui-1l06pbn">
$match
</code>
stage. As an alternative, you can either:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/geoNear/#mongodb-pipeline-pipe.-geoNear">
<code class="leafygreen-ui-1l06pbn">
$geoNear
</code>
</a>
stage instead of the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-pipeline-pipe.-match" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$match
</code>
</span>
</a>
stage.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/geoWithin/#mongodb-query-op.-geoWithin">
<code class="leafygreen-ui-1l06pbn">
$geoWithin
</code>
</a>
query predicate operator with
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/center/#mongodb-query-op.-center">
<code class="leafygreen-ui-1l06pbn">
$center
</code>
</a>
or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/centerSphere/#mongodb-query-op.-centerSphere">
<code class="leafygreen-ui-1l06pbn">
$centerSphere
</code>
</a>
in the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-pipeline-pipe.-match" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$match
</code>
</span>
</a>
stage.
</p>
</li>
</ul>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
To use
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/text/#mongodb-query-op.-text">
<code class="leafygreen-ui-1l06pbn">
$text
</code>
</a>
in a
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-pipeline-pipe.-match" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$match
</code>
</span>
</a>
stage, the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-pipeline-pipe.-match" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$match
</code>
</span>
</a>
stage has to be the first stage of the pipeline.
</p>
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/views/#std-label-views-landing-page">
Views
</a>
do not support
<code class="leafygreen-ui-1l06pbn">
$text
</code>
.
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
$text
</code>
provides text query capabilities for self-managed
(non-Atlas) deployments. For data hosted on MongoDB Atlas, MongoDB
offers an improved full-text query solution,
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/atlas-search/" target="_self">
<span>
Atlas Search
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
</li>
</ul>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Filter Data on Atlas by Using Atlas Search
<a class="headerlink leafygreen-ui-1kepx47" href="#filter-data-on-atlas-by-using-atlas-search" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="filter-data-on-atlas-by-using-atlas-search">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
For data stored in
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/" target="_self">
<span>
MongoDB Atlas
</span>
</a>
,
you can use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/atlas-search/" target="_self">
<span>
Atlas Search
</span>
</a>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/atlas-search/compound/#std-label-compound-ref" target="_self">
<span>
compound
</span>
</a>
operator
<code class="leafygreen-ui-1l06pbn">
filter
</code>
option to match or filter
documents when running
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/atlas-search/aggregation-stages/search/#mongodb-pipeline-pipe.-search" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$search
</code>
</span>
</a>
queries. Running
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-pipeline-pipe.-match" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$match
</code>
</span>
</a>
after
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/atlas-search/aggregation-stages/search/#mongodb-pipeline-pipe.-search" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$search
</code>
</span>
</a>
is less performant
than running
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/atlas-search/aggregation-stages/search/#mongodb-pipeline-pipe.-search" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$search
</code>
</span>
</a>
with the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/atlas-search/compound/#std-label-compound-ref" target="_self">
<span>
compound
</span>
</a>
operator
<code class="leafygreen-ui-1l06pbn">
filter
</code>
option.
</p>
<p class="leafygreen-ui-1kp3ins">
To learn more about the
<code class="leafygreen-ui-1l06pbn">
filter
</code>
option, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/atlas-search/compound/#std-label-compound-ref" target="_self">
<span>
compound
</span>
</a>
in the Atlas documentation.
</p>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Examples
<a class="headerlink leafygreen-ui-1kepx47" href="#examples" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="examples">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The examples use a collection named
<code class="leafygreen-ui-1l06pbn">
articles
</code>
with the following
documents:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ \"_id\" : ObjectId(\"512bc95fe835e68f199c8686\"), \"author\" : \"dave\", \"score\" : 80, \"views\" : 100 }\n{ \"_id\" : ObjectId(\"512bc962e835e68f199c8687\"), \"author\" : \"dave\", \"score\" : 85, \"views\" : 521 }\n{ \"_id\" : ObjectId(\"55f5a192d4bede9ac365b257\"), \"author\" : \"ahn\", \"score\" : 60, \"views\" : 1000 }\n{ \"_id\" : ObjectId(\"55f5a192d4bede9ac365b258\"), \"author\" : \"li\", \"score\" : 55, \"views\" : 5000 }\n{ \"_id\" : ObjectId(\"55f5a1d3d4bede9ac365b259\"), \"author\" : \"annT\", \"score\" : 60, \"views\" : 50 }\n{ \"_id\" : ObjectId(\"55f5a1d3d4bede9ac365b25a\"), \"author\" : \"li\", \"score\" : 94, \"views\" : 999 }\n{ \"_id\" : ObjectId(\"55f5a1d3d4bede9ac365b25b\"), \"author\" : \"ty\", \"score\" : 95, \"views\" : 1000 }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"512bc95fe835e68f199c8686"</span>)<!-- -->, <span class="lg-highlight-string">"author"</span> <!-- -->: <span class="lg-highlight-string">"dave"</span>, <span class="lg-highlight-string">"score"</span> <!-- -->: <span class="lg-highlight-number">80</span>, <span class="lg-highlight-string">"views"</span> <!-- -->: <span class="lg-highlight-number">100</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"512bc962e835e68f199c8687"</span>)<!-- -->, <span class="lg-highlight-string">"author"</span> <!-- -->: <span class="lg-highlight-string">"dave"</span>, <span class="lg-highlight-string">"score"</span> <!-- -->: <span class="lg-highlight-number">85</span>, <span class="lg-highlight-string">"views"</span> <!-- -->: <span class="lg-highlight-number">521</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"55f5a192d4bede9ac365b257"</span>)<!-- -->, <span class="lg-highlight-string">"author"</span> <!-- -->: <span class="lg-highlight-string">"ahn"</span>, <span class="lg-highlight-string">"score"</span> <!-- -->: <span class="lg-highlight-number">60</span>, <span class="lg-highlight-string">"views"</span> <!-- -->: <span class="lg-highlight-number">1000</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"55f5a192d4bede9ac365b258"</span>)<!-- -->, <span class="lg-highlight-string">"author"</span> <!-- -->: <span class="lg-highlight-string">"li"</span>, <span class="lg-highlight-string">"score"</span> <!-- -->: <span class="lg-highlight-number">55</span>, <span class="lg-highlight-string">"views"</span> <!-- -->: <span class="lg-highlight-number">5000</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"55f5a1d3d4bede9ac365b259"</span>)<!-- -->, <span class="lg-highlight-string">"author"</span> <!-- -->: <span class="lg-highlight-string">"annT"</span>, <span class="lg-highlight-string">"score"</span> <!-- -->: <span class="lg-highlight-number">60</span>, <span class="lg-highlight-string">"views"</span> <!-- -->: <span class="lg-highlight-number">50</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"55f5a1d3d4bede9ac365b25a"</span>)<!-- -->, <span class="lg-highlight-string">"author"</span> <!-- -->: <span class="lg-highlight-string">"li"</span>, <span class="lg-highlight-string">"score"</span> <!-- -->: <span class="lg-highlight-number">94</span>, <span class="lg-highlight-string">"views"</span> <!-- -->: <span class="lg-highlight-number">999</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"55f5a1d3d4bede9ac365b25b"</span>)<!-- -->, <span class="lg-highlight-string">"author"</span> <!-- -->: <span class="lg-highlight-string">"ty"</span>, <span class="lg-highlight-string">"score"</span> <!-- -->: <span class="lg-highlight-number">95</span>, <span class="lg-highlight-string">"views"</span> <!-- -->: <span class="lg-highlight-number">1000</span> }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Equality Match
<a class="headerlink leafygreen-ui-1kepx47" href="#equality-match" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="equality-match">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The following operation uses
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-pipeline-pipe.-match" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$match
</code>
</span>
</a>
to perform an equality
match:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.articles.aggregate(\n [ { $match : { author : \"dave\" } } ]\n);","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">articles</span>.<span class="lg-highlight-title lg-highlight-function">aggregate</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->[ <!-- -->{ <!-- -->$match<!-- --> <!-- -->: <!-- -->{ <!-- -->author <!-- -->: <span class="lg-highlight-string">"dave"</span> } } ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)<!-- -->;</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-pipeline-pipe.-match" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$match
</code>
</span>
</a>
selects the documents where the
<code class="leafygreen-ui-1l06pbn">
author
</code>
field equals
<code class="leafygreen-ui-1l06pbn">
dave
</code>
, and the aggregation returns the following:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ \"_id\" : ObjectId(\"512bc95fe835e68f199c8686\"), \"author\" : \"dave\", \"score\" : 80, \"views\" : 100 }\n{ \"_id\" : ObjectId(\"512bc962e835e68f199c8687\"), \"author\" : \"dave\", \"score\" : 85, \"views\" : 521 }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"512bc95fe835e68f199c8686"</span>)<!-- -->, <span class="lg-highlight-string">"author"</span> <!-- -->: <span class="lg-highlight-string">"dave"</span>, <span class="lg-highlight-string">"score"</span> <!-- -->: <span class="lg-highlight-number">80</span>, <span class="lg-highlight-string">"views"</span> <!-- -->: <span class="lg-highlight-number">100</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"512bc962e835e68f199c8687"</span>)<!-- -->, <span class="lg-highlight-string">"author"</span> <!-- -->: <span class="lg-highlight-string">"dave"</span>, <span class="lg-highlight-string">"score"</span> <!-- -->: <span class="lg-highlight-number">85</span>, <span class="lg-highlight-string">"views"</span> <!-- -->: <span class="lg-highlight-number">521</span> }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-match-perform-a-count">
</span>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Perform a Count
<a class="headerlink leafygreen-ui-1kepx47" href="#perform-a-count" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="perform-a-count">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The following example selects documents to process using the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-pipeline-pipe.-match" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$match
</code>
</span>
</a>
pipeline operator and then pipes the results
to the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/group/#mongodb-pipeline-pipe.-group">
<code class="leafygreen-ui-1l06pbn">
$group
</code>
</a>
pipeline operator to compute a count of
the documents:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.articles.aggregate( [\n { $match: { $or: [ { score: { $gt: 70, $lt: 90 } }, { views: { $gte: 1000 } } ] } },\n { $group: { _id: null, count: { $sum: 1 } } }\n] );","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">articles</span>.<span class="lg-highlight-title lg-highlight-function">aggregate</span>( <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">$match</span>: <!-- -->{ <span class="lg-highlight-attr">$or</span>: <!-- -->[ <!-- -->{ <span class="lg-highlight-attr">score</span>: <!-- -->{ <span class="lg-highlight-attr">$gt</span>: <span class="lg-highlight-number">70</span>, <span class="lg-highlight-attr">$lt</span>: <span class="lg-highlight-number">90</span> } }<!-- -->, <!-- -->{ <span class="lg-highlight-attr">views</span>: <!-- -->{ <span class="lg-highlight-attr">$gte</span>: <span class="lg-highlight-number">1000</span> } } ] } }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">$group</span>: <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-literal">null</span>, <span class="lg-highlight-attr">count</span>: <!-- -->{ <span class="lg-highlight-attr">$sum</span>: <span class="lg-highlight-number">1</span> } } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">] )<!-- -->;</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
In the aggregation pipeline,
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-pipeline-pipe.-match" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$match
</code>
</span>
</a>
selects the documents
where either the
<code class="leafygreen-ui-1l06pbn">
score
</code>
is greater than
<code class="leafygreen-ui-1l06pbn">
70
</code>
and less than
<code class="leafygreen-ui-1l06pbn">
90
</code>
or the
<code class="leafygreen-ui-1l06pbn">
views
</code>
is greater than or equal to
<code class="leafygreen-ui-1l06pbn">
1000
</code>
. These documents
are then piped to the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/group/#mongodb-pipeline-pipe.-group">
<code class="leafygreen-ui-1l06pbn">
$group
</code>
</a>
to perform a count. The
aggregation returns the following:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ \"_id\" : null, \"count\" : 5 }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-literal">null</span>, <span class="lg-highlight-string">"count"</span> <!-- -->: <span class="lg-highlight-number">5</span> }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Additional Information
<a class="headerlink leafygreen-ui-1kepx47" href="#additional-information" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="additional-information">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
Refer to the following pages for more information and use cases on
aggregation.
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/aggregation-zip-code-data-set/">
Aggregation with the Zip Code Data Set
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/aggregation-with-user-preference-data/">
Aggregation with User Preference Data
</a>
</p>
</li>
</ul>
</section>
</section>
|
https://www.mongodb.com/docs/manual/core/indexes/index-types/index-compound/create-compound-index/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Create a Compound Index
<a class="headerlink leafygreen-ui-1kepx47" href="#create-a-compound-index" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="create-a-compound-index">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#restriction" target="_self">
<span>
Restriction
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#before-you-begin" target="_self">
<span>
Before You Begin
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#procedure" target="_self">
<span>
Procedure
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#results" target="_self">
<span>
Results
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#learn-more" target="_self">
<span>
Learn More
</span>
</a>
</li>
</ul>
</div>
<p class="leafygreen-ui-1kp3ins">
<strong>
Compound indexes
</strong>
are indexes that contain references to multiple
fields. Compound indexes improve performance for queries on exactly the
fields in the index or fields in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/index-compound/#std-label-compound-index-prefix">
index prefix
</a>
. Indexing commonly queried fields increases the
chances of
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/query-optimization/#std-label-indexes-covered-queries">
covering
</a>
those queries,
meaning MongoDB can satisfy the query entirely with the index,
without examining documents.
</p>
<p class="leafygreen-ui-1kp3ins">
To create a compound index, use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.createIndex/#mongodb-method-db.collection.createIndex">
<code class="leafygreen-ui-1l06pbn">
db.collection.createIndex()
</code>
</a>
method:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.<collection>.createIndex( {\n <field1>: <sortorder>,\n <field2>: <sortorder>,\n ...\n <fieldn>: <sortorder>\n} )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<!-- --><<!-- -->collection<!-- -->><!-- -->.<span class="lg-highlight-title lg-highlight-function">createIndex</span>( <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <<!-- -->field1<!-- -->><!-- -->: <<!-- -->sortOrder<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- --><<!-- -->field2<!-- -->><!-- -->: <<!-- -->sortOrder<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- --><<!-- -->fieldN<!-- -->><!-- -->: <<!-- -->sortOrder<!-- -->></td></tr><tr class=""><td class="leafygreen-ui-7razhx">} )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Restriction
<a class="headerlink leafygreen-ui-1kepx47" href="#restriction" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="restriction">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
You can specify up to 32 fields in a single compound index.
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Before You Begin
<a class="headerlink leafygreen-ui-1kepx47" href="#before-you-begin" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="before-you-begin">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
Create a
<code class="leafygreen-ui-1l06pbn">
students
</code>
collection that contains these documents:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.students.insertMany([\n {\n \"name\": \"Alice\",\n \"gpa\": 3.6,\n \"location\": { city: \"Sacramento\", state: \"California\" }\n },\n {\n \"name\": \"Bob\",\n \"gpa\": 3.2,\n \"location\": { city: \"Albany\", state: \"New York\" }\n }\n])","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">students</span>.<span class="lg-highlight-title lg-highlight-function">insertMany</span>(<!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"name"</span>: <span class="lg-highlight-string">"Alice"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"gpa"</span>: <span class="lg-highlight-number">3.6</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"location"</span>: <!-- -->{ <span class="lg-highlight-attr">city</span>: <span class="lg-highlight-string">"Sacramento"</span>, <span class="lg-highlight-attr">state</span>: <span class="lg-highlight-string">"California"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"name"</span>: <span class="lg-highlight-string">"Bob"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"gpa"</span>: <span class="lg-highlight-number">3.2</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"location"</span>: <!-- -->{ <span class="lg-highlight-attr">city</span>: <span class="lg-highlight-string">"Albany"</span>, <span class="lg-highlight-attr">state</span>: <span class="lg-highlight-string">"New York"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">])</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Procedure
<a class="headerlink leafygreen-ui-1kepx47" href="#procedure" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="procedure">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The following operation creates a compound index containing the
<code class="leafygreen-ui-1l06pbn">
name
</code>
and
<code class="leafygreen-ui-1l06pbn">
gpa
</code>
fields:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.students.createIndex( {\n name: 1,\n gpa: -1\n} )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">students</span>.<span class="lg-highlight-title lg-highlight-function">createIndex</span>( <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">gpa</span>: <!-- -->-<span class="lg-highlight-number">1</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">} )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
In this example:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The index on
<code class="leafygreen-ui-1l06pbn">
name
</code>
is ascending (
<code class="leafygreen-ui-1l06pbn">
1
</code>
).
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The index on
<code class="leafygreen-ui-1l06pbn">
gpa
</code>
is descending (
<code class="leafygreen-ui-1l06pbn">
-1
</code>
).
</p>
</li>
</ul>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Results
<a class="headerlink leafygreen-ui-1kepx47" href="#results" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="results">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The created index supports queries that select on:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Both
<code class="leafygreen-ui-1l06pbn">
name
</code>
and
<code class="leafygreen-ui-1l06pbn">
gpa
</code>
fields.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Only the
<code class="leafygreen-ui-1l06pbn">
name
</code>
field, because
<code class="leafygreen-ui-1l06pbn">
name
</code>
is a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/index-compound/#std-label-compound-index-prefix">
prefix
</a>
of the compound index.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
For example, the index supports these queries:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.students.find( { name: \"Alice\", gpa: 3.6 } )\n\ndb.students.find( { name: \"Bob\" } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">students</span>.<span class="lg-highlight-title lg-highlight-function">find</span>( <!-- -->{ <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">"Alice"</span>, <span class="lg-highlight-attr">gpa</span>: <span class="lg-highlight-number">3.6</span> } )</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">students</span>.<span class="lg-highlight-title lg-highlight-function">find</span>( <!-- -->{ <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">"Bob"</span> } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The index
<strong>
does not
</strong>
support queries on only the
<code class="leafygreen-ui-1l06pbn">
gpa
</code>
field,
because
<code class="leafygreen-ui-1l06pbn">
gpa
</code>
is not part of the index prefix. For example, the index
does not support this query:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.students.find( { gpa: { $gt: 3.5 } } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">students</span>.<span class="lg-highlight-title lg-highlight-function">find</span>( <!-- -->{ <span class="lg-highlight-attr">gpa</span>: <!-- -->{ <span class="lg-highlight-attr">$gt</span>: <span class="lg-highlight-number">3.5</span> } } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Learn More
<a class="headerlink leafygreen-ui-1kepx47" href="#learn-more" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="learn-more">
</div>
</a>
</h2>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
To learn how to create efficient compound indexes, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/equality-sort-range-rule/#std-label-esr-indexing-rule">
The ESR (Equality, Sort, Range) Rule
<!-- -->
.
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
To learn how sort order (ascending or descending) impacts performance
of compound indexes, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/sort-results-with-indexes/#std-label-sorting-with-indexes">
Use Indexes to Sort Query Results
<!-- -->
.
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
To learn about other index types, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/#std-label-index-types">
Index Types
<!-- -->
.
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
To learn what properties you can specify for indexes, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-properties/#std-label-index-properties">
Index Properties
<!-- -->
.
</a>
</p>
</li>
</ul>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/inconsistency-type/MissingShardKeyIndex/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
MissingShardKeyIndex
<a class="headerlink leafygreen-ui-1kepx47" href="#missingshardkeyindex" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="missingshardkeyindex">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#description" target="_self">
<span>
Description
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#format" target="_self">
<span>
Format
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#example" target="_self">
<span>
Example
</span>
</a>
</li>
</ul>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Description
<a class="headerlink leafygreen-ui-1kepx47" href="#description" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="description">
</div>
</a>
</h2>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
MissingShardKeyIndex
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-MissingShardKeyIndex" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-MissingShardKeyIndex">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
A sharded collection exists that doesn't have an index compatible with the
collection shard key.
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
7.0
</em>
.
</p>
</div>
</dd>
</dl>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Format
<a class="headerlink leafygreen-ui-1kepx47" href="#format" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="format">
</div>
</a>
</h2>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n type: \"MissingShardKeyIndex\",\n description: \"<string>\",\n details: {\n namespace: \"<string>\",\n shard: \"<string>\",\n shardKey: { <document> }\n }\n}","programmingLanguage":"JSON"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light json leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-punctuation">{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> type<span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"MissingShardKeyIndex"</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> description<span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"<string>"</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> details<span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-punctuation">{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> namespace<span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"<string>"</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> shard<span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"<string>"</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> shardKey<span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-punctuation">{</span> <document> <span class="lg-highlight-punctuation">}</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-punctuation">}</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-punctuation">}</span></td></tr></tbody></table></code></pre>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
MissingShardKeyIndex
</code>
inconsistency documents contain the following fields:
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:20%"/>
<col style="width:15%"/>
<col style="width:65%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Field
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Type
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
type
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
string
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Type of inconsistency document. Returns a value of
<code class="leafygreen-ui-1l06pbn">
MissingShardKeyIndex
</code>
for this
inconsistency type.
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
description
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
string
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Describes the inconsistency found in the metadata.
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
details
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
document
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Document with additional information on where the inconsistency exists in the
database and sharded cluster.
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
details.namespace
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
string
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Indicates the database and collection where the inconsistency exists.
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
details.shard
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
string
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
The shard where the inconsistency exists.
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
details.shardKey
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
document
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
The shard key that requires an index.
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Example
<a class="headerlink leafygreen-ui-1kepx47" href="#example" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="example">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
Use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.adminCommand/#mongodb-method-db.adminCommand">
<code class="leafygreen-ui-1l06pbn">
db.adminCommand()
</code>
</a>
method to call the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/checkMetadataConsistency/#mongodb-dbcommand-dbcmd.checkMetadataConsistency">
<code class="leafygreen-ui-1l06pbn">
checkMetadataConsistency
</code>
</a>
command:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand( { checkMetadataConsistency: 1 } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>( <!-- -->{ <span class="lg-highlight-attr">checkMetadataConsistency</span>: <span class="lg-highlight-number">1</span> } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The method returns a cursor with a batch of documents showing the inconsistencies
found in the sharding metadata. The example below shows a cursor with
a
<code class="leafygreen-ui-1l06pbn">
MissingShardKeyIndex
</code>
inconsistency document:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n cursor: {\n id: Long(\"0\"),\n ns: \"test.$cmd.aggregate\",\n firstBatch: [\n {\n type: \"MissingShardKeyIndex\",\n description: \"Found sharded collection without a shard key index\",\n details: {\n namespace: \"test.authors\",\n shard: \"shard-rs0\",\n shardKey: {\n skey: 1\n }\n }\n }\n ],\n },\n ok: 1\n}","programmingLanguage":"JSON"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light json leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-punctuation">{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> cursor<span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-punctuation">{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> id<span class="lg-highlight-punctuation">:</span> Long(<span class="lg-highlight-string">"0"</span>)<span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ns<span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"test.$cmd.aggregate"</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> firstBatch<span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-punctuation">[</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-punctuation">{</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> type<span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"MissingShardKeyIndex"</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> description<span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"Found sharded collection without a shard key index"</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> details<span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-punctuation">{</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> namespace<span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"test.authors"</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> shard<span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"shard-rs0"</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> shardKey<span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-punctuation">{</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> skey<span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-number">1</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-punctuation">}</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-punctuation">}</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-punctuation">}</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-punctuation">]</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-punctuation">}</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ok<span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-number">1</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-punctuation">}</span></td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/method/rs.remove/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
rs.remove()
<a class="headerlink leafygreen-ui-1kepx47" href="#rs.remove--" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="rs.remove--">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#definition" target="_self">
<span>
Definition
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#behavior" target="_self">
<span>
Behavior
</span>
</a>
</li>
</ul>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Definition
<a class="headerlink leafygreen-ui-1kepx47" href="#definition" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="definition">
</div>
</a>
</h2>
<dl class="method">
<dt>
<code class="leafygreen-ui-1l06pbn">
rs.remove(hostname)
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-method-rs.remove" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-method-rs.remove">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Removes the member described by the
<code class="leafygreen-ui-1l06pbn">
hostname
</code>
parameter from the
current
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-replica-set">
replica set
</a>
. This function will disconnect the
shell briefly and forces a reconnection as the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-replica-set">
replica set
</a>
renegotiates which member will be
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-primary">
primary
</a>
. As a
result, the shell will display an error even if this command
succeeds.
</p>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-rs.remove" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
rs.remove()
</code>
</span>
</a>
method has the following parameter:
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:20%"/>
<col style="width:20%"/>
<col style="width:80%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Parameter
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Type
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
hostname
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
string
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
The hostname of a system in the replica set.
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Before running the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-rs.remove" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
rs.remove()
</code>
</span>
</a>
operation, it is good
practice to
<em>
shut down
</em>
the replica set member that you are
removing.
</p>
</div>
</div>
</dd>
</dl>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Behavior
<a class="headerlink leafygreen-ui-1kepx47" href="#behavior" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="behavior">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
By default, replica set members wait for 5 minutes before dropping
connections to the removed member. In sharded replica sets, you can
modify this timeout using the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/parameters/#mongodb-parameter-param.ShardingTaskExecutorPoolHostTimeoutMS">
<code class="leafygreen-ui-1l06pbn">
ShardingTaskExecutorPoolHostTimeoutMS
</code>
</a>
server parameter.
</p>
<p class="leafygreen-ui-1kp3ins">
To immediately drop all outgoing connections from the replica set to
the removed member, run the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/dropConnections/#mongodb-dbcommand-dbcmd.dropConnections">
<code class="leafygreen-ui-1l06pbn">
dropConnections
</code>
</a>
administrative command on each remaining member on the replica set:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand(\n {\n \"dropConnections\" : 1,\n \"hostAndPort\" : [\n \"<hostname>:<port>\"\n ]\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"dropConnections"</span> <!-- -->: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"hostAndPort"</span> <!-- -->: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"<hostname>:<port>"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Replace
<code class="leafygreen-ui-1l06pbn">
<hostname>
</code>
with the hostname of the removed member and
<code class="leafygreen-ui-1l06pbn">
<port>
</code>
with the port the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
listened on.
</p>
</section>
</section>
|
https://www.mongodb.com/docs/manual/tutorial/clear-jumbo-flag/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Clear
<code class="leafygreen-ui-1l06pbn">
jumbo
</code>
Flag
<a class="headerlink leafygreen-ui-1kepx47" href="#clear-jumbo-flag" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="clear-jumbo-flag">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#procedures" target="_self">
<span>
Procedures
</span>
</a>
</li>
</ul>
</div>
<p class="leafygreen-ui-1kp3ins">
If MongoDB cannot split a chunk that exceeds the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/sharding-data-partitioning/#std-label-sharding-range-size">
specified range
size
</a>
, MongoDB labels the chunk as
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/sharding-data-partitioning/#std-label-jumbo-chunks">
jumbo
<!-- -->
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
The following procedures outline the steps to manually clear the
<code class="leafygreen-ui-1l06pbn">
jumbo
</code>
flag.
</p>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Procedures
<a class="headerlink leafygreen-ui-1kepx47" href="#procedures" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="procedures">
</div>
</a>
</h2>
<span class="leafygreen-ui-1qnjd6d" id="std-label-preferred-method-clear-jumbo">
</span>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Divisible Chunks
<a class="headerlink leafygreen-ui-1kepx47" href="#divisible-chunks" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="divisible-chunks">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The preferred manual way to clear the
<code class="leafygreen-ui-1l06pbn">
jumbo
</code>
flag from a chunk is to
attempt to split the chunk. If the chunk is divisible, MongoDB removes
the flag upon successful split of the chunk.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"HowTo","steps":[{"@type":"HowToStep","text":"Connect to mongos.Connect mongosh to a mongos."},{"@type":"HowToStep","text":"Find the jumbo Chunk.Run sh.status(true) to find the chunk labeled\njumbo.For example, the following output from sh.status(true) shows that\nchunk with shard key range { \"x\" : 2 } -->> { \"x\" : 4 } is\njumbo."},{"@type":"HowToStep","text":"Split the jumbo Chunk.Use either sh.splitAt() or sh.splitFind() to\nsplit the jumbo chunk.MongoDB removes the jumbo flag upon successful split of the\nchunk."}],"name":"Divisible Chunks","image":"https://webimages.mongodb.com/_com_assets/cms/kuyj2focmkbxv7gh3-stacked_default_slate_blue.svg?auto=format%252Ccompress"}
</script>
<div class="css-4nyere eccljxs0">
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
1
</div>
</div>
<div class="css-1ed38mk">
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Connect to
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
.
<a class="headerlink leafygreen-ui-1kepx47" href="#connect-to-mongos" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="connect-to-mongos">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
Connect
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
to a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
.
</a>
</p>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
2
</div>
</div>
<div class="css-1ed38mk">
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Find the
<code class="leafygreen-ui-1l06pbn">
jumbo
</code>
Chunk.
<a class="headerlink leafygreen-ui-1kepx47" href="#find-the-jumbo-chunk" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="find-the-jumbo-chunk">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
Run
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/sh.status/#mongodb-method-sh.status">
<code class="leafygreen-ui-1l06pbn">
sh.status(true)
</code>
</a>
to find the chunk labeled
<code class="leafygreen-ui-1l06pbn">
jumbo
</code>
.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"sh.status(true)","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">sh.status(<span class="lg-highlight-literal">true</span>)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
For example, the following output from sh.status(true) shows that
chunk with shard key range
<code class="leafygreen-ui-1l06pbn">
{ "x" : 2 } -->> { "x" : 4 }
</code>
is
<code class="leafygreen-ui-1l06pbn">
jumbo
</code>
.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":" --- Sharding Status ---\n sharding version: {\n ...\n }\n shards:\n ...\n databases:\n ...\n test.foo\n shard key: { \"x\" : 1 }\n chunks:\n shard-b 2\n shard-a 2\n { \"x\" : { \"$minKey\" : 1 } } -->> { \"x\" : 1 } on : shard-b Timestamp(2, 0)\n { \"x\" : 1 } -->> { \"x\" : 2 } on : shard-a Timestamp(3, 1)\n { \"x\" : 2 } -->> { \"x\" : 4 } on : shard-a Timestamp(2, 2) jumbo\n { \"x\" : 4 } -->> { \"x\" : { \"$maxKey\" : 1 } } on : shard-b Timestamp(3, 0)"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light none leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"> --- Sharding Status ---</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> sharding version: {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> shards:</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> databases:</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> test.foo</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> shard key: { "x" : 1 }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> chunks:</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> shard-b 2</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> shard-a 2</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { "x" : { "$minKey" : 1 } } -->> { "x" : 1 } on : shard-b Timestamp(2, 0)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { "x" : 1 } -->> { "x" : 2 } on : shard-a Timestamp(3, 1)</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> { "x" : 2 } -->> { "x" : 4 } on : shard-a Timestamp(2, 2) jumbo</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { "x" : 4 } -->> { "x" : { "$maxKey" : 1 } } on : shard-b Timestamp(3, 0)</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
3
</div>
</div>
<div class="css-1ed38mk">
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Split the
<code class="leafygreen-ui-1l06pbn">
jumbo
</code>
Chunk.
<a class="headerlink leafygreen-ui-1kepx47" href="#split-the-jumbo-chunk" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="split-the-jumbo-chunk">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
Use either
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/sh.splitAt/#mongodb-method-sh.splitAt">
<code class="leafygreen-ui-1l06pbn">
sh.splitAt()
</code>
</a>
or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/sh.splitFind/#mongodb-method-sh.splitFind">
<code class="leafygreen-ui-1l06pbn">
sh.splitFind()
</code>
</a>
to
split the
<code class="leafygreen-ui-1l06pbn">
jumbo
</code>
chunk.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"sh.splitAt( \"test.foo\", { x: 3 })\n","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">sh.<span class="lg-highlight-title lg-highlight-function">splitAt</span>( <span class="lg-highlight-string">"test.foo"</span>, <!-- -->{ <span class="lg-highlight-attr">x</span>: <span class="lg-highlight-number">3</span> })</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
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</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
MongoDB removes the
<code class="leafygreen-ui-1l06pbn">
jumbo
</code>
flag upon successful split of the
chunk.
</p>
</section>
</div>
</div>
</div>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Indivisible Chunks
<a class="headerlink leafygreen-ui-1kepx47" href="#indivisible-chunks" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="indivisible-chunks">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
In some instances, MongoDB cannot split the no-longer
<code class="leafygreen-ui-1l06pbn">
jumbo
</code>
chunk,
such as a chunk with a range of single shard key value. As such, you
cannot split the chunk to clear the flag.
</p>
<p class="leafygreen-ui-1kp3ins">
In such cases, you can either
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/sharding-change-a-shard-key/#std-label-change-a-shard-key">
change the shard key
</a>
so that the chunk can become divisible or manually
clear the flag.
</p>
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Refine the Shard Key
<a class="headerlink leafygreen-ui-1kepx47" href="#refine-the-shard-key" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="refine-the-shard-key">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
MongoDB provides the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/refineCollectionShardKey/#mongodb-dbcommand-dbcmd.refineCollectionShardKey">
<code class="leafygreen-ui-1l06pbn">
refineCollectionShardKey
</code>
</a>
command. Using the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/refineCollectionShardKey/#mongodb-dbcommand-dbcmd.refineCollectionShardKey">
<code class="leafygreen-ui-1l06pbn">
refineCollectionShardKey
</code>
</a>
command, you can refine a
collection's shard key by adding a suffix field or fields to the
existing key. By adding new field(s) to the shard key, indivisible
jumbo chunks can become divisible.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"HowTo","steps":[{"@type":"HowToStep","text":"Connect to mongos.Connect mongosh to a mongos."},{"@type":"HowToStep","text":"Find the jumbo Chunk.Run sh.status(true) to find the chunk labeled\njumbo.For example, the following output from sh.status(true) shows that for the sharded collection test.orders,\nboth the chunk with shard key range { \"status\" : \"A\" } -->> {\n\"status\" : \"D\" } and the chunk with range { \"status\" : \"D\" }\n-->> { \"status\" : \"P\" } are jumbo."},{"@type":"HowToStep","text":"Refine the Shard Key for test.orders Collection.To address the low cardinality of the key status, refine the key\nfor the test.orders collection. For example, add the\norder_id and customer_id fields as a suffix to the current\nshard key; i.e. the shard key will be { status: 1, order_id: 1,\ncustomer_id: 1 } after refinement.First, create the index\nto support the shard key\n{ status: 1, order_id: 1, customer_id: 1 } if the index does\nnot already exist.For additional index considerations for refining the shard key,\nsee Index Considerations.In the admin database, run the\nrefineCollectionShardKey command to add the\norder_id and customer_id fields as a suffix to the existing key:The refineCollectionShardKey command updates the\nchunk ranges and\nzone ranges to incorporate the new\nfields without modifying the range values of the existing key\nfields. That is, the refinement of the shard key does not\nimmediately affect the distribution of chunks across shards or\nzones. Any future chunk splits or migration occur as part of the\nroutine sharding operations.After you refine the shard key, it may be that not all documents in\nthe collection have the suffix field(s). To populate the missing\nshard key field(s), see Missing Shard Key Fields.Before refining the shard key, ensure that all or most documents in\nthe collection have the suffix fields, if possible, to avoid having\nto populate the field afterwards."}],"name":"Refine the Shard Key","image":"https://webimages.mongodb.com/_com_assets/cms/kuyj2focmkbxv7gh3-stacked_default_slate_blue.svg?auto=format%252Ccompress"}
</script>
<div class="css-4nyere eccljxs0">
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
1
</div>
</div>
<div class="css-1ed38mk">
<section>
<h5 class="contains-headerlink leafygreen-ui-1vzlt5f">
Connect to
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
.
<a class="headerlink leafygreen-ui-1kepx47" href="#connect-to-mongos-1" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="connect-to-mongos-1">
</div>
</a>
</h5>
<p class="leafygreen-ui-1kp3ins">
Connect
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
to a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
.
</a>
</p>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
2
</div>
</div>
<div class="css-1ed38mk">
<section>
<h5 class="contains-headerlink leafygreen-ui-1vzlt5f">
Find the
<code class="leafygreen-ui-1l06pbn">
jumbo
</code>
Chunk.
<a class="headerlink leafygreen-ui-1kepx47" href="#find-the-jumbo-chunk-1" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="find-the-jumbo-chunk-1">
</div>
</a>
</h5>
<p class="leafygreen-ui-1kp3ins">
Run
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/sh.status/#mongodb-method-sh.status">
<code class="leafygreen-ui-1l06pbn">
sh.status(true)
</code>
</a>
to find the chunk labeled
<code class="leafygreen-ui-1l06pbn">
jumbo
</code>
.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"sh.status(true)","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">sh.status(<span class="lg-highlight-literal">true</span>)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
For example, the following output from
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/sh.status/#mongodb-method-sh.status">
<code class="leafygreen-ui-1l06pbn">
sh.status(true)
</code>
</a>
shows that for the sharded collection
<code class="leafygreen-ui-1l06pbn">
test.orders
</code>
,
both the chunk with shard key range
<code class="leafygreen-ui-1l06pbn">
{ "status" : "A" } -->> {
"status" : "D" }
</code>
and the chunk with range
<code class="leafygreen-ui-1l06pbn">
{ "status" : "D" }
-->> { "status" : "P" }
</code>
are
<code class="leafygreen-ui-1l06pbn">
jumbo
</code>
.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":" --- Sharding Status ---\n sharding version: {\n ...\n }\n shards:\n ...\n databases:\n ...\n test.orders\n shard key: { \"status\" : 1 }\n unique: false\n balancing: true\n chunks:\n shardA 2\n shardB 2\n { \"status\" : { \"$minKey\" : 1 } } -->> { \"status\" : \"A\" } on : shardB Timestamp(3, 0)\n { \"status\" : \"A\" } -->> { \"status\" : \"D\" } on : shardA Timestamp(5, 1) jumbo\n { \"status\" : \"D\" } -->> { \"status\" : \"P\" } on : shardA Timestamp(4, 2) jumbo\n { \"status\" : \"P\" } -->> { \"status\" : { \"$maxKey\" : 1 } } on : shardB Timestamp(5, 0)"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light none leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"> --- Sharding Status ---</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> sharding version: {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> shards:</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> databases:</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> test.orders</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> shard key: { "status" : 1 }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> unique: false</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> balancing: true</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> chunks:</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> shardA 2</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> shardB 2</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { "status" : { "$minKey" : 1 } } -->> { "status" : "A" } on : shardB Timestamp(3, 0)</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> { "status" : "A" } -->> { "status" : "D" } on : shardA Timestamp(5, 1) jumbo</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> { "status" : "D" } -->> { "status" : "P" } on : shardA Timestamp(4, 2) jumbo</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { "status" : "P" } -->> { "status" : { "$maxKey" : 1 } } on : shardB Timestamp(5, 0)</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
3
</div>
</div>
<div class="css-1ed38mk">
<section>
<h5 class="contains-headerlink leafygreen-ui-1vzlt5f">
Refine the Shard Key for
<code class="leafygreen-ui-1l06pbn">
test.orders
</code>
Collection.
<a class="headerlink leafygreen-ui-1kepx47" href="#refine-the-shard-key-for-test-orders-collection" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="refine-the-shard-key-for-test-orders-collection">
</div>
</a>
</h5>
<p class="leafygreen-ui-1kp3ins">
To address the low cardinality of the key
<code class="leafygreen-ui-1l06pbn">
status
</code>
, refine the key
for the
<code class="leafygreen-ui-1l06pbn">
test.orders
</code>
collection. For example, add the
<code class="leafygreen-ui-1l06pbn">
order_id
</code>
and
<code class="leafygreen-ui-1l06pbn">
customer_id
</code>
fields as a suffix to the current
shard key; i.e. the shard key will be
<code class="leafygreen-ui-1l06pbn">
{ status: 1, order_id: 1,
customer_id: 1 }
</code>
after refinement.
</p>
<ol class="leafygreen-ui-rioki0" type="a">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
First,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.createIndex/#mongodb-method-db.collection.createIndex">
<code class="leafygreen-ui-1l06pbn">
create the index
</code>
</a>
to support the shard key
<code class="leafygreen-ui-1l06pbn">
{ status: 1, order_id: 1, customer_id: 1 }
</code>
if the index does
not already exist.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.orders.createIndex( { status: 1, order_id: 1, customer_id: 1 } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">orders</span>.<span class="lg-highlight-title lg-highlight-function">createIndex</span>( <!-- -->{ <span class="lg-highlight-attr">status</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-attr">order_id</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-attr">customer_id</span>: <span class="lg-highlight-number">1</span> } )</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
For additional index considerations for refining the shard key,
see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/refineCollectionShardKey/#std-label-refineCollectionShardKey-index-considerations">
Index Considerations
<!-- -->
.
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
In the
<code class="leafygreen-ui-1l06pbn">
admin
</code>
database, run the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/refineCollectionShardKey/#mongodb-dbcommand-dbcmd.refineCollectionShardKey">
<code class="leafygreen-ui-1l06pbn">
refineCollectionShardKey
</code>
</a>
command to add the
<code class="leafygreen-ui-1l06pbn">
order_id
</code>
and
<code class="leafygreen-ui-1l06pbn">
customer_id
</code>
fields as a suffix to the existing key:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand( {\n refineCollectionShardKey: \"test.orders\",\n key: { status: 1, order_id: 1, customer_id: 1 }\n} )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>( <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">refineCollectionShardKey</span>: <span class="lg-highlight-string">"test.orders"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">key</span>: <!-- -->{ <span class="lg-highlight-attr">status</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-attr">order_id</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-attr">customer_id</span>: <span class="lg-highlight-number">1</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">} )</td></tr></tbody></table></code></pre>
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</li>
</ol>
<p class="leafygreen-ui-1kp3ins">
The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/refineCollectionShardKey/#mongodb-dbcommand-dbcmd.refineCollectionShardKey">
<code class="leafygreen-ui-1l06pbn">
refineCollectionShardKey
</code>
</a>
command updates the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/sharding-data-partitioning/#std-label-sharding-data-partitioning">
chunk ranges
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/zone-sharding/#std-label-zone-sharding">
zone ranges
</a>
to incorporate the new
fields without modifying the range values of the existing key
fields. That is, the refinement of the shard key does not
immediately affect the distribution of chunks across shards or
zones. Any future chunk splits or migration occur as part of the
routine sharding operations.
</p>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
After you refine the shard key, it may be that not all documents in
the collection have the suffix field(s). To populate the missing
shard key field(s), see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/sharding-shard-key/#std-label-shard-key-missing">
Missing Shard Key Fields
<!-- -->
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
Before refining the shard key, ensure that all or most documents in
the collection have the suffix fields, if possible, to avoid having
to populate the field afterwards.
</p>
</div>
</div>
</section>
</div>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-clear-jumbo-flag-manually">
</span>
</section>
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Manually Clear the
<code class="leafygreen-ui-1l06pbn">
jumbo
</code>
Flag for an Indivisible Chunk
<a class="headerlink leafygreen-ui-1kepx47" href="#manually-clear-the-jumbo-flag-for-an-indivisible-chunk" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="manually-clear-the-jumbo-flag-for-an-indivisible-chunk">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
To manually clear the
<code class="leafygreen-ui-1l06pbn">
jumbo
</code>
flag, you can use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/clearJumboFlag/#mongodb-dbcommand-dbcmd.clearJumboFlag">
<code class="leafygreen-ui-1l06pbn">
clearJumboFlag
</code>
</a>
command. If you clear the
<code class="leafygreen-ui-1l06pbn">
jumbo
</code>
flag for a chunk
that still exceeds the chunk size, MongoDB will re-label the chunk as
<code class="leafygreen-ui-1l06pbn">
jumbo
</code>
when MongoDB tries to move the chunk.
</p>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Only use this method if the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-preferred-method-clear-jumbo" target="_self">
<span>
preferred method
</span>
</a>
is
<em>
not
</em>
applicable.
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To manually clear the flag, use the following steps:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"HowTo","steps":[{"@type":"HowToStep","text":"Connect to mongos.Connect mongosh to a mongos."},{"@type":"HowToStep","text":"Find the jumbo Chunk.Run sh.status(true) to find the chunk labeled\njumbo.For example, the following output from sh.status(true) shows that\nchunk with shard key range { \"x\" : 2 } -->> { \"x\" : 3 } is\njumbo."},{"@type":"HowToStep","text":"Run the clearJumboFlag Command.From the admin database, run the clearJumboFlag,\npassing in the namespace of the sharded collection and either:the bounds of the jumbo chunk:the find document with a shard key\nand value contained in the jumbo chunk:If the collection uses a hashed shard key, do not use the\nfind field with clearJumboFlag. For hashed\nshard keys, use the bounds field instead."}],"name":"Manually Clear the jumbo Flag for an Indivisible Chunk","image":"https://webimages.mongodb.com/_com_assets/cms/kuyj2focmkbxv7gh3-stacked_default_slate_blue.svg?auto=format%252Ccompress"}
</script>
<div class="css-4nyere eccljxs0">
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
1
</div>
</div>
<div class="css-1ed38mk">
<section>
<h5 class="contains-headerlink leafygreen-ui-1vzlt5f">
Connect to
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
.
<a class="headerlink leafygreen-ui-1kepx47" href="#connect-to-mongos-2" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="connect-to-mongos-2">
</div>
</a>
</h5>
<p class="leafygreen-ui-1kp3ins">
Connect
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
to a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
.
</a>
</p>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
2
</div>
</div>
<div class="css-1ed38mk">
<section>
<h5 class="contains-headerlink leafygreen-ui-1vzlt5f">
Find the
<code class="leafygreen-ui-1l06pbn">
jumbo
</code>
Chunk.
<a class="headerlink leafygreen-ui-1kepx47" href="#find-the-jumbo-chunk-2" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="find-the-jumbo-chunk-2">
</div>
</a>
</h5>
<p class="leafygreen-ui-1kp3ins">
Run
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/sh.status/#mongodb-method-sh.status">
<code class="leafygreen-ui-1l06pbn">
sh.status(true)
</code>
</a>
to find the chunk labeled
<code class="leafygreen-ui-1l06pbn">
jumbo
</code>
.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"sh.status(true)","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">sh.status(<span class="lg-highlight-literal">true</span>)</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
For example, the following output from sh.status(true) shows that
chunk with shard key range
<code class="leafygreen-ui-1l06pbn">
{ "x" : 2 } -->> { "x" : 3 }
</code>
is
<code class="leafygreen-ui-1l06pbn">
jumbo
</code>
.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":" --- Sharding Status ---\n sharding version: {\n ...\n }\n shards:\n ...\n databases:\n ...\n test.foo\n shard key: { \"x\" : 1 }\n chunks:\n shard-b 2\n shard-a 2\n { \"x\" : { \"$minKey\" : 1 } } -->> { \"x\" : 1 } on : shard-b Timestamp(2, 0)\n { \"x\" : 1 } -->> { \"x\" : 2 } on : shard-a Timestamp(3, 1)\n { \"x\" : 2 } -->> { \"x\" : 3 } on : shard-a Timestamp(2, 2) jumbo\n { \"x\" : 3 } -->> { \"x\" : { \"$maxKey\" : 1 } } on : shard-b Timestamp(3, 0)"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light none leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"> --- Sharding Status ---</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> sharding version: {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> shards:</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> databases:</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> test.foo</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> shard key: { "x" : 1 }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> chunks:</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> shard-b 2</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> shard-a 2</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { "x" : { "$minKey" : 1 } } -->> { "x" : 1 } on : shard-b Timestamp(2, 0)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { "x" : 1 } -->> { "x" : 2 } on : shard-a Timestamp(3, 1)</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> { "x" : 2 } -->> { "x" : 3 } on : shard-a Timestamp(2, 2) jumbo</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { "x" : 3 } -->> { "x" : { "$maxKey" : 1 } } on : shard-b Timestamp(3, 0)</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
3
</div>
</div>
<div class="css-1ed38mk">
<section>
<h5 class="contains-headerlink leafygreen-ui-1vzlt5f">
Run the
<code class="leafygreen-ui-1l06pbn">
clearJumboFlag
</code>
Command.
<a class="headerlink leafygreen-ui-1kepx47" href="#run-the-clearjumboflag-command" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="run-the-clearjumboflag-command">
</div>
</a>
</h5>
<p class="leafygreen-ui-1kp3ins">
From the
<code class="leafygreen-ui-1l06pbn">
admin
</code>
database, run the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/clearJumboFlag/#mongodb-dbcommand-dbcmd.clearJumboFlag">
<code class="leafygreen-ui-1l06pbn">
clearJumboFlag
</code>
</a>
,
passing in the namespace of the sharded collection and either:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/clearJumboFlag/#std-label-clearJumboFlag-bounds">
bounds
</a>
of the
<code class="leafygreen-ui-1l06pbn">
jumbo
</code>
chunk:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand( {\n clearJumboFlag: \"test.foo\",\n bounds: [{ \"x\" : 2 }, { \"x\" : 3 }]\n\n})","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>( <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">clearJumboFlag</span>: <span class="lg-highlight-string">"test.foo"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">bounds</span>: <!-- -->[<!-- -->{ <span class="lg-highlight-string">"x"</span> <!-- -->: <span class="lg-highlight-number">2</span> }<!-- -->, <!-- -->{ <span class="lg-highlight-string">"x"</span> <!-- -->: <span class="lg-highlight-number">3</span> }]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">})</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/clearJumboFlag/#std-label-clearJumboFlag-find">
find
</a>
document with a shard key
and value contained in the
<code class="leafygreen-ui-1l06pbn">
jumbo
</code>
chunk:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand( {\n clearJumboFlag: \"test.foo\",\n find: { \"x\" : 2 }\n})","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>( <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">clearJumboFlag</span>: <span class="lg-highlight-string">"test.foo"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">find</span>: <!-- -->{ <span class="lg-highlight-string">"x"</span> <!-- -->: <span class="lg-highlight-number">2</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">})</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
If the collection uses a hashed shard key, do not use the
<code class="leafygreen-ui-1l06pbn">
find
</code>
field with
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/clearJumboFlag/#mongodb-dbcommand-dbcmd.clearJumboFlag">
<code class="leafygreen-ui-1l06pbn">
clearJumboFlag
</code>
</a>
. For hashed
shard keys, use the
<code class="leafygreen-ui-1l06pbn">
bounds
</code>
field instead.
</p>
</div>
</div>
</li>
</ul>
</section>
</div>
</div>
</div>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/refineCollectionShardKey/#mongodb-dbcommand-dbcmd.refineCollectionShardKey">
<code class="leafygreen-ui-1l06pbn">
refineCollectionShardKey
</code>
</a>
</p>
</div>
</div>
</section>
</section>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/operator/aggregation/toInt/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
$toInt (aggregation)
<a class="headerlink leafygreen-ui-1kepx47" href="#-toint--aggregation-" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="-toint--aggregation-">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#definition" target="_self">
<span>
Definition
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#behavior" target="_self">
<span>
Behavior
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#example" target="_self">
<span>
Example
</span>
</a>
</li>
</ul>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Definition
<a class="headerlink leafygreen-ui-1kepx47" href="#definition" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="definition">
</div>
</a>
</h2>
<dl class="expression">
<dt>
<code class="leafygreen-ui-1l06pbn">
$toInt
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-expression-exp.-toInt" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-expression-exp.-toInt">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Converts a value to an integer. If the value cannot be converted
to an integer,
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-expression-exp.-toInt" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$toInt
</code>
</span>
</a>
errors. If the value is null or
missing,
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-expression-exp.-toInt" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$toInt
</code>
</span>
</a>
returns null.
</p>
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-expression-exp.-toInt" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$toInt
</code>
</span>
</a>
has the following syntax:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n $toInt: <expression>\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">$toInt</span>: <<!-- -->expression<!-- -->></td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-expression-exp.-toInt" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$toInt
</code>
</span>
</a>
takes any valid
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/#std-label-aggregation-expressions">
expression
<!-- -->
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-expression-exp.-toInt" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$toInt
</code>
</span>
</a>
is a shorthand for the following
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/convert/#mongodb-expression-exp.-convert">
<code class="leafygreen-ui-1l06pbn">
$convert
</code>
</a>
expression:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ $convert: { input: <expression>, to: \"int\" } }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-attr">$convert</span>: <!-- -->{ <span class="lg-highlight-attr">input</span>: <<!-- -->expression<!-- -->><!-- -->,<!-- --> <span class="lg-highlight-attr">to</span>: <span class="lg-highlight-string">"int"</span> } }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/convert/#mongodb-expression-exp.-convert">
<code class="leafygreen-ui-1l06pbn">
$convert
</code>
</a>
</p>
</div>
</div>
</dd>
</dl>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Behavior
<a class="headerlink leafygreen-ui-1kepx47" href="#behavior" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="behavior">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The following table lists the input types that can be converted to an
integer:
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:20%"/>
<col style="width:80%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Input Type
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Behavior
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Boolean
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<div class="line-block">
<div class="line">
Returns
<code class="leafygreen-ui-1l06pbn">
0
</code>
for
<code class="leafygreen-ui-1l06pbn">
false
</code>
.
</div>
<div class="line">
Returns
<code class="leafygreen-ui-1l06pbn">
1
</code>
for
<code class="leafygreen-ui-1l06pbn">
true
</code>
.
</div>
</div>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Double
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Returns truncated value.
</p>
<p class="leafygreen-ui-1kp3ins">
The truncated double value must fall within the minimum and
maximum value for an integer.
</p>
<p class="leafygreen-ui-1kp3ins">
You cannot convert a double value whose truncated value is less
than the minimum integer value or is greater than the maximum
integer value.
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Decimal
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Returns truncated value.
</p>
<p class="leafygreen-ui-1kp3ins">
The truncated decimal value must fall within the minimum and
maximum value for an integer.
</p>
<p class="leafygreen-ui-1kp3ins">
You cannot convert a decimal value whose truncated value is less
than the minimum integer value or is greater than the maximum
integer value.
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Integer
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
No-op. Returns the integer value.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Long
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Returns the long value as an integer.
</p>
<p class="leafygreen-ui-1kp3ins">
The long value must fall within the minimum and maximum value
for an integer.
</p>
<p class="leafygreen-ui-1kp3ins">
You cannot convert a long value that is less than the minimum
integer value or is greater than the maximum integer value.
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
String
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Returns the numerical value of the string as an integer.
</p>
<p class="leafygreen-ui-1kp3ins">
The string value must be a base
<sub>
10
</sub>
integer; e.g.
<code class="leafygreen-ui-1l06pbn">
"-5"
</code>
,
<code class="leafygreen-ui-1l06pbn">
"123456"
</code>
).
</p>
<p class="leafygreen-ui-1kp3ins">
You cannot convert a string value of a float or decimal or
non-base
<sub>
10
</sub>
number (e.g.
<code class="leafygreen-ui-1l06pbn">
"-5.0"
</code>
,
<code class="leafygreen-ui-1l06pbn">
"0x6400"
</code>
)
</p>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<p class="leafygreen-ui-1kp3ins">
The following table lists some conversion to integer examples:
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:80%"/>
<col style="width:20%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Example
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Results
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
$toInt: true
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
1
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
$toInt: false
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
0
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
$toInt: 1.99999
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
1
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
$toInt: NumberDecimal("5.5000")
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
5
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
$toInt: NumberDecimal("9223372036000.000")
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Error
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
$toInt: NumberLong("5000")
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
5000
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
$toInt: NumberLong("922337203600")
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Error
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
$toInt: "-2"
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
-2
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
$toInt: "2.5"
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Error
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
$toInt: null
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
null
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Example
<a class="headerlink leafygreen-ui-1kepx47" href="#example" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="example">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
Create a collection
<code class="leafygreen-ui-1l06pbn">
orders
</code>
with the following documents:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.orders.insertMany( [\n { _id: 1, item: \"apple\", qty: \"5\", price: 10 },\n { _id: 2, item: \"pie\", qty: \"10\", price: NumberDecimal(\"20.0\") },\n { _id: 3, item: \"ice cream\", qty: \"2\", price: \"4.99\" },\n { _id: 4, item: \"almonds\" , qty: \"5\", price: 5 }\n] )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">orders</span>.<span class="lg-highlight-title lg-highlight-function">insertMany</span>( <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-attr">item</span>: <span class="lg-highlight-string">"apple"</span>, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-string">"5"</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">10</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-attr">item</span>: <span class="lg-highlight-string">"pie"</span>, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-string">"10"</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-title lg-highlight-class">NumberDecimal</span>(<span class="lg-highlight-string">"20.0"</span>) }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">3</span>, <span class="lg-highlight-attr">item</span>: <span class="lg-highlight-string">"ice cream"</span>, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-string">"2"</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-string">"4.99"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">4</span>, <span class="lg-highlight-attr">item</span>: <span class="lg-highlight-string">"almonds"</span> <!-- -->, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-string">"5"</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">5</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">] )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The following aggregation operation:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
converts
<code class="leafygreen-ui-1l06pbn">
qty
</code>
to an integer,
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
converts
<code class="leafygreen-ui-1l06pbn">
price
</code>
to a decimal,
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
calculates the total price:
</p>
</li>
</ul>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"// Define stage to add convertedPrice and convertedQty fields with the converted price and qty values\n\npriceQtyConversionStage = {\n $addFields: {\n convertedPrice: { $toDecimal: \"$price\" },\n convertedQty: { $toInt: \"$qty\" },\n }\n};\n\n// Define stage to calculate total price by multiplying convertedPrice and convertedQty fields\n\n\ntotalPriceCalculationStage = {\n $project: { item: 1, totalPrice: { $multiply: [ \"$convertedPrice\", \"$convertedQty\" ] } }\n};\n\ndb.orders.aggregate( [\n priceQtyConversionStage,\n totalPriceCalculationStage\n] )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-comment">//</span><span class="lg-highlight-comment"> Define stage to </span><span class="lg-highlight-comment">add convertedPrice and convertedQty</span><span class="lg-highlight-comment"> fields with the </span><span class="lg-highlight-comment">converted</span><span class="lg-highlight-comment"> price and qty </span><span class="lg-highlight-comment">values</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">priceQtyConversionStage <!-- -->= <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">$addFields</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">convertedPrice</span>: <!-- -->{ <span class="lg-highlight-attr">$toDecimal</span>: <span class="lg-highlight-string">"$price"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">convertedQty</span>: <!-- -->{ <span class="lg-highlight-attr">$toInt</span>: <span class="lg-highlight-string">"$qty"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->}</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-comment">//</span><span class="lg-highlight-comment"> Define stage to </span><span class="lg-highlight-comment">calculate total price by multiplying convertedPrice and convertedQty fields</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">totalPriceCalculationStage <!-- -->= <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">$project</span>: <!-- -->{ <span class="lg-highlight-attr">item</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-attr">totalPrice</span>: <!-- -->{ <span class="lg-highlight-attr">$multiply</span>: <!-- -->[ <span class="lg-highlight-string">"$convertedPrice"</span>, <span class="lg-highlight-string">"$convertedQty"</span> ] } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">orders</span>.<span class="lg-highlight-title lg-highlight-function">aggregate</span>( <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->priceQtyConversionStage<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->totalPriceCalculationStage</td></tr><tr class=""><td class="leafygreen-ui-7razhx">] )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The operation returns the following documents:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ _id: 1, item: 'apple', totalPrice: Decimal128(\"50\") },\n{ _id: 2, item: 'pie', totalPrice: Decimal128(\"200.0\") },\n{ _id: 3, item: 'ice cream', totalPrice: Decimal128(\"9.98\") },\n{ _id: 4, item: 'almonds', totalPrice: Decimal128(\"25\") }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-attr">item</span>: <span class="lg-highlight-string">'apple'</span>, <span class="lg-highlight-attr">totalPrice</span>: <span class="lg-highlight-title lg-highlight-class">Decimal128</span>(<span class="lg-highlight-string">"50"</span>) }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-attr">item</span>: <span class="lg-highlight-string">'pie'</span>, <span class="lg-highlight-attr">totalPrice</span>: <span class="lg-highlight-title lg-highlight-class">Decimal128</span>(<span class="lg-highlight-string">"200.0"</span>) }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">3</span>, <span class="lg-highlight-attr">item</span>: <span class="lg-highlight-string">'ice cream'</span>, <span class="lg-highlight-attr">totalPrice</span>: <span class="lg-highlight-title lg-highlight-class">Decimal128</span>(<span class="lg-highlight-string">"9.98"</span>) }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">4</span>, <span class="lg-highlight-attr">item</span>: <span class="lg-highlight-string">'almonds'</span>, <span class="lg-highlight-attr">totalPrice</span>: <span class="lg-highlight-title lg-highlight-class">Decimal128</span>(<span class="lg-highlight-string">"25"</span>) }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
If the conversion operation encounters an error, the aggregation
operation stops and throws an error. To override this behavior, use
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/convert/#mongodb-expression-exp.-convert">
<code class="leafygreen-ui-1l06pbn">
$convert
</code>
</a>
instead.
</p>
</div>
</div>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/method/Bulk/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Bulk()
<a class="headerlink leafygreen-ui-1kepx47" href="#bulk--" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="bulk--">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#description" target="_self">
<span>
Description
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#ordered-and-unordered-bulk-operations" target="_self">
<span>
Ordered and Unordered Bulk Operations
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#methods" target="_self">
<span>
Methods
</span>
</a>
</li>
</ul>
</div>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
MongoDB also provides the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.bulkWrite/#mongodb-method-db.collection.bulkWrite">
<code class="leafygreen-ui-1l06pbn">
db.collection.bulkWrite()
</code>
</a>
method for
performing bulk write operations.
</p>
</div>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Description
<a class="headerlink leafygreen-ui-1kepx47" href="#description" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="description">
</div>
</a>
</h2>
<dl class="method">
<dt>
<code class="leafygreen-ui-1l06pbn">
Bulk()
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-method-Bulk" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-method-Bulk">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Bulk operations builder used to construct a list of write operations
to perform in bulk for a single collection. To instantiate the
builder, use either the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.initializeOrderedBulkOp/#mongodb-method-db.collection.initializeOrderedBulkOp">
<code class="leafygreen-ui-1l06pbn">
db.collection.initializeOrderedBulkOp()
</code>
</a>
or the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.initializeUnorderedBulkOp/#mongodb-method-db.collection.initializeUnorderedBulkOp">
<code class="leafygreen-ui-1l06pbn">
db.collection.initializeUnorderedBulkOp()
</code>
</a>
method.
</p>
</dd>
</dl>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Ordered and Unordered Bulk Operations
<a class="headerlink leafygreen-ui-1kepx47" href="#ordered-and-unordered-bulk-operations" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="ordered-and-unordered-bulk-operations">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The builder can construct the list of operations as
<em>
ordered
</em>
or
<em>
unordered
</em>
.
</p>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Ordered Operations
<a class="headerlink leafygreen-ui-1kepx47" href="#ordered-operations" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="ordered-operations">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
With an
<em>
ordered
</em>
operations list, MongoDB executes the write
operations in the list serially. If an error occurs during the
processing of one of the write operations, MongoDB will return without
processing any remaining write operations in the list.
</p>
<p class="leafygreen-ui-1kp3ins">
Use
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.initializeOrderedBulkOp/#mongodb-method-db.collection.initializeOrderedBulkOp">
<code class="leafygreen-ui-1l06pbn">
db.collection.initializeOrderedBulkOp()
</code>
</a>
to create a
builder for an ordered list of write commands.
</p>
<p class="leafygreen-ui-1kp3ins">
When executing an
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.initializeOrderedBulkOp/#mongodb-method-db.collection.initializeOrderedBulkOp">
<code class="leafygreen-ui-1l06pbn">
ordered
</code>
</a>
list of operations, MongoDB
groups the operations by the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/Bulk.getOperations/#mongodb-data-batchType">
<code class="leafygreen-ui-1l06pbn">
operation type
</code>
</a>
and
contiguity; i.e.
<em>
contiguous
</em>
operations of the same type are grouped
together. For example, if an ordered list has two insert operations
followed by an update operation followed by another insert operation,
MongoDB groups the operations into three separate groups: first group
contains the two insert operations, second group contains the update
operation, and the third group contains the last insert operation. This
behavior is subject to change in future versions.
</p>
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-Bulk" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
Bulk()
</code>
</span>
</a>
operations in
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
and comparable
methods in the drivers do not have a limit for the number of operations
in a group. To see how the operations are grouped for bulk operation
execution, call
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/Bulk.getOperations/#mongodb-method-Bulk.getOperations">
<code class="leafygreen-ui-1l06pbn">
Bulk.getOperations()
</code>
</a>
<em>
after
</em>
the execution.
</p>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/limits/#mongodb-limit-Write-Command-Batch-Limit-Size">
Write Command Batch Limit Size
</a>
</p>
</li>
</ul>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Executing an
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.initializeOrderedBulkOp/#mongodb-method-db.collection.initializeOrderedBulkOp">
<code class="leafygreen-ui-1l06pbn">
ordered
</code>
</a>
list of operations on a
sharded collection will generally be slower than executing an
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.initializeUnorderedBulkOp/#mongodb-method-db.collection.initializeUnorderedBulkOp">
<code class="leafygreen-ui-1l06pbn">
unordered
</code>
</a>
list
since with an ordered list, each operation must wait for the previous
operation to finish.
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Unordered Operations
<a class="headerlink leafygreen-ui-1kepx47" href="#unordered-operations" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="unordered-operations">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
With an
<em>
unordered
</em>
operations list, MongoDB can execute in parallel,
as well as in a nondeterministic order, the write operations in the
list. If an error occurs during the processing of one of the write
operations, MongoDB will continue to process remaining write operations
in the list.
</p>
<p class="leafygreen-ui-1kp3ins">
Use
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.initializeUnorderedBulkOp/#mongodb-method-db.collection.initializeUnorderedBulkOp">
<code class="leafygreen-ui-1l06pbn">
db.collection.initializeUnorderedBulkOp()
</code>
</a>
to create a
builder for an unordered list of write commands.
</p>
<p class="leafygreen-ui-1kp3ins">
When executing an
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.initializeUnorderedBulkOp/#mongodb-method-db.collection.initializeUnorderedBulkOp">
<code class="leafygreen-ui-1l06pbn">
unordered
</code>
</a>
list of operations,
MongoDB groups the operations. With an unordered bulk operation, the
operations in the list may be reordered to increase performance. As
such, applications should not depend on the ordering when performing
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.initializeUnorderedBulkOp/#mongodb-method-db.collection.initializeUnorderedBulkOp">
<code class="leafygreen-ui-1l06pbn">
unordered
</code>
</a>
bulk
operations.
</p>
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-Bulk" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
Bulk()
</code>
</span>
</a>
operations in
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
and comparable
methods in the drivers do not have a limit for the number of operations
in a group. To see how the operations are grouped for bulk operation
execution, call
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/Bulk.getOperations/#mongodb-method-Bulk.getOperations">
<code class="leafygreen-ui-1l06pbn">
Bulk.getOperations()
</code>
</a>
<em>
after
</em>
the execution.
</p>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/limits/#mongodb-limit-Write-Command-Batch-Limit-Size">
Write Command Batch Limit Size
</a>
</p>
</li>
</ul>
</div>
</div>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Transactions
<a class="headerlink leafygreen-ui-1kepx47" href="#transactions" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="transactions">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-Bulk" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
Bulk()
</code>
</span>
</a>
can be used inside
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/transactions/#std-label-transactions">
distributed transactions
<!-- -->
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
For
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/Bulk.insert/#mongodb-method-Bulk.insert">
<code class="leafygreen-ui-1l06pbn">
Bulk.insert()
</code>
</a>
operations, the collection must already exist.
</p>
<p class="leafygreen-ui-1kp3ins">
For
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/Bulk.find.upsert/#mongodb-method-Bulk.find.upsert">
<code class="leafygreen-ui-1l06pbn">
Bulk.find.upsert()
</code>
</a>
, if the operation results in an
upsert, the collection must already exist.
</p>
<p class="leafygreen-ui-1kp3ins">
Do not explicitly set the write concern for the operation if run in
a transaction. To use write concern with transactions, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/transactions/#std-label-transactions-write-concern">
Transactions and Write Concern
<!-- -->
.
</a>
</p>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
In most cases, a distributed transaction incurs a greater
performance cost over single document writes, and the
availability of distributed transactions should not be a
replacement for effective schema design. For many scenarios, the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/data-modeling/concepts/embedding-vs-references/#std-label-data-modeling-embedding">
denormalized data model (embedded documents and arrays)
</a>
will continue to be optimal for your
data and use cases. That is, for many scenarios, modeling your data
appropriately will minimize the need for distributed
transactions.
</p>
<p class="leafygreen-ui-1kp3ins">
For additional transactions usage considerations
(such as runtime limit and oplog size limit), see also
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/transactions-production-consideration/#std-label-production-considerations">
Production Considerations
<!-- -->
.
</a>
</p>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-bulk-methods">
</span>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Methods
<a class="headerlink leafygreen-ui-1kepx47" href="#methods" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="methods">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-Bulk" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
Bulk()
</code>
</span>
</a>
builder has the following methods:
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:30%"/>
<col style="width:70%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Name
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/Bulk.insert/#mongodb-method-Bulk.insert">
<code class="leafygreen-ui-1l06pbn">
Bulk.insert()
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Adds an insert operation to a list of operations.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/Bulk.find/#mongodb-method-Bulk.find">
<code class="leafygreen-ui-1l06pbn">
Bulk.find()
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Specifies the query condition for an update or a remove operation.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/Bulk.find.delete/#mongodb-method-Bulk.find.delete">
<code class="leafygreen-ui-1l06pbn">
Bulk.find.delete()
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Adds a multiple document delete operation to a list of operations.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/Bulk.find.deleteOne/#mongodb-method-Bulk.find.deleteOne">
<code class="leafygreen-ui-1l06pbn">
Bulk.find.deleteOne()
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Adds a single document delete operation to a list of operations.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/Bulk.find.remove/#mongodb-method-Bulk.find.remove">
<code class="leafygreen-ui-1l06pbn">
Bulk.find.remove()
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
An alias for
<code class="leafygreen-ui-1l06pbn">
Bulk.find.delete()
</code>
.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/Bulk.find.removeOne/#mongodb-method-Bulk.find.removeOne">
<code class="leafygreen-ui-1l06pbn">
Bulk.find.removeOne()
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
An alias for
<code class="leafygreen-ui-1l06pbn">
Bulk.find.deleteOne()
</code>
.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/Bulk.find.replaceOne/#mongodb-method-Bulk.find.replaceOne">
<code class="leafygreen-ui-1l06pbn">
Bulk.find.replaceOne()
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Adds a single document replacement operation to a list of operations.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/Bulk.find.updateOne/#mongodb-method-Bulk.find.updateOne">
<code class="leafygreen-ui-1l06pbn">
Bulk.find.updateOne()
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Adds a single document update operation to a list of operations.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/Bulk.find.update/#mongodb-method-Bulk.find.update">
<code class="leafygreen-ui-1l06pbn">
Bulk.find.update()
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Adds a
<code class="leafygreen-ui-1l06pbn">
multi
</code>
update operation to a list of operations.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/Bulk.find.upsert/#mongodb-method-Bulk.find.upsert">
<code class="leafygreen-ui-1l06pbn">
Bulk.find.upsert()
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Specifies
<code class="leafygreen-ui-1l06pbn">
upsert: true
</code>
for an update operation.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/Bulk.execute/#mongodb-method-Bulk.execute">
<code class="leafygreen-ui-1l06pbn">
Bulk.execute()
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Executes a list of operations in bulk.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/Bulk.getOperations/#mongodb-method-Bulk.getOperations">
<code class="leafygreen-ui-1l06pbn">
Bulk.getOperations()
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Returns an array of write operations executed in the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-Bulk" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
Bulk()
</code>
</span>
</a>
operations object.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/Bulk.tojson/#mongodb-method-Bulk.toJSON">
<code class="leafygreen-ui-1l06pbn">
Bulk.toJSON()
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Returns a JSON document that contains the number of operations and batches in the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-Bulk" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
Bulk()
</code>
</span>
</a>
operations object.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/Bulk.toString/#mongodb-method-Bulk.toString">
<code class="leafygreen-ui-1l06pbn">
Bulk.toString()
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Returns the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/Bulk.tojson/#mongodb-method-Bulk.toJSON">
<code class="leafygreen-ui-1l06pbn">
Bulk.toJSON()
</code>
</a>
results as a string.
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/command/replSetSyncFrom/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
replSetSyncFrom
<a class="headerlink leafygreen-ui-1kepx47" href="#replsetsyncfrom" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="replsetsyncfrom">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#description" target="_self">
<span>
Description
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#compatibility" target="_self">
<span>
Compatibility
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#syntax" target="_self">
<span>
Syntax
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#command-fields" target="_self">
<span>
Command Fields
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#behavior" target="_self">
<span>
Behavior
</span>
</a>
</li>
</ul>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Description
<a class="headerlink leafygreen-ui-1kepx47" href="#description" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="description">
</div>
</a>
</h2>
<dl class="dbcommand">
<dt>
<code class="leafygreen-ui-1l06pbn">
replSetSyncFrom
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-dbcommand-dbcmd.replSetSyncFrom" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-dbcommand-dbcmd.replSetSyncFrom">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Temporarily overrides the default sync target for the current
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
. This operation is useful for testing different
patterns and in situations where a set member is not replicating
from the desired host.
</p>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
In
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#std-program-mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
, this command can also be run through the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/rs.syncFrom/#mongodb-method-rs.syncFrom">
<code class="leafygreen-ui-1l06pbn">
rs.syncFrom()
</code>
</a>
helper method
<!-- -->
.
</p>
<p class="leafygreen-ui-1kp3ins">
Helper methods are convenient for
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#std-program-mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
users, but they may not
return the same level of information as database commands. In cases where
the convenience is not needed or the additional return fields are required,
use the database command.
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Run
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.replSetSyncFrom" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
replSetSyncFrom
</code>
</span>
</a>
in the
<code class="leafygreen-ui-1l06pbn">
admin
</code>
database.
</p>
</dd>
</dl>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Compatibility
<a class="headerlink leafygreen-ui-1kepx47" href="#compatibility" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="compatibility">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
This command is available in deployments hosted in the following environments:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas?tck=docs_server" target="_self">
<span>
MongoDB Atlas
</span>
</a>
: The fully
managed service for MongoDB deployments in the cloud
</p>
</li>
</ul>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
This command is not supported in M0, M2, M5, and M10+ clusters.
For more information, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/unsupported-commands/" target="_self">
<span>
Unsupported Commands
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/install-enterprise/#std-label-install-mdb-enterprise">
MongoDB Enterprise
</a>
: The
subscription-based, self-managed version of MongoDB
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/install-community/#std-label-install-mdb-community-edition">
MongoDB Community
</a>
: The
source-available, free-to-use, and self-managed version of MongoDB
</p>
</li>
</ul>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Syntax
<a class="headerlink leafygreen-ui-1kepx47" href="#syntax" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="syntax">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The command has the following syntax:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand(\n {\n replSetSyncFrom: \"hostname<:port>\"\n }\n )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">replSetSyncFrom</span>: <span class="lg-highlight-string">"hostname<:port>"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Command Fields
<a class="headerlink leafygreen-ui-1kepx47" href="#command-fields" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="command-fields">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The command takes the following field:
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:20%"/>
<col style="width:20%"/>
<col style="width:80%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Field
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Type
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
replSetSyncFrom
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
string
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
The name and port number of the replica set member that this member
should replicate from. Use the
<code class="leafygreen-ui-1l06pbn">
[hostname]:[port]
</code>
form.
</p>
<p class="leafygreen-ui-1kp3ins">
Replica set members with
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-configuration/#mongodb-rsconf-rsconf.members-n-.votes">
<code class="leafygreen-ui-1l06pbn">
1 vote
</code>
</a>
cannot sync from members with
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-configuration/#mongodb-rsconf-rsconf.members-n-.votes">
<code class="leafygreen-ui-1l06pbn">
0 votes
</code>
.
</a>
</p>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Behavior
<a class="headerlink leafygreen-ui-1kepx47" href="#behavior" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="behavior">
</div>
</a>
</h2>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Sync Logic
<a class="headerlink leafygreen-ui-1kepx47" href="#sync-logic" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="sync-logic">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
If an initial sync operation is in progress when you run
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.replSetSyncFrom" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
replSetSyncFrom
</code>
</span>
</a>
,
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.replSetSyncFrom" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
replSetSyncFrom
</code>
</span>
</a>
stops the in-progress initial sync and
restarts the sync process with the new target.
</p>
<p class="leafygreen-ui-1kp3ins">
Only modify the default sync logic as needed, and always exercise
caution.
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Target
<a class="headerlink leafygreen-ui-1kepx47" href="#target" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="target">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The member to sync from must be a valid source for data in the set.
To sync from a member, the member must:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Have data. It cannot be an arbiter, in startup or recovering mode, and
must be able to answer data queries.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Be accessible.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Be a member of the same set in the replica set configuration.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Build indexes with the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-configuration/#mongodb-rsconf-rsconf.members-n-.buildIndexes">
<code class="leafygreen-ui-1l06pbn">
members[n].buildIndexes
</code>
</a>
setting.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
A different member of the set, to prevent syncing from itself.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
If you attempt to replicate from a member that is more than 10 seconds
behind the current member,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
will log a warning but will
still replicate from the lagging member. See also
<a class="leafygreen-ui-tqgtui" href="/docs/manual/replication/#std-label-replication-flow-control">
Replication Lag and Flow Control
<!-- -->
.
</a>
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Persistence
<a class="headerlink leafygreen-ui-1kepx47" href="#persistence" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="persistence">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.replSetSyncFrom" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
replSetSyncFrom
</code>
</span>
</a>
provide a temporary override of default behavior.
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
will revert to the default sync behavior in the
following situations:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
instance restarts.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The connection between the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
and the sync target
closes.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
If the sync target falls more than 30 seconds behind another
member of the replica set.
</p>
</li>
</ul>
</section>
<p class="leafygreen-ui-1kp3ins">
For more information the use of
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.replSetSyncFrom" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
replSetSyncFrom
</code>
</span>
</a>
, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/configure-replica-set-secondary-sync-target/">
Configure a Self-Managed Secondary's Sync Target
<!-- -->
.
</a>
</p>
</section>
</section>
|
https://www.mongodb.com/docs/manual/administration/install-enterprise-linux/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Install MongoDB Enterprise on Linux
<a class="headerlink leafygreen-ui-1kepx47" href="#install-mongodb-enterprise-on-linux" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="install-mongodb-enterprise-on-linux">
</div>
</a>
</h1>
<p class="leafygreen-ui-1kp3ins">
These documents provide instructions to install MongoDB Enterprise
Edition for supported Linux systems.
</p>
<dl>
<dt>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/install-mongodb-enterprise-on-red-hat/#std-label-install-mdb-enterprise-redhat-centos">
Install on Red Hat
</a>
</dt>
<dd class="css-1ufxuu7">
Install MongoDB Enterprise and required dependencies on Red Hat
Enterprise or CentOS Systems using packages.
</dd>
<dt>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/install-mongodb-enterprise-on-ubuntu/#std-label-install-mdb-enterprise-ubuntu">
Install on Ubuntu
</a>
</dt>
<dd class="css-1ufxuu7">
Install MongoDB Enterprise and required dependencies on Ubuntu
Linux Systems using packages.
</dd>
<dt>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/install-mongodb-enterprise-on-debian/#std-label-install-mdb-enterprise-debian">
Install on Debian
</a>
</dt>
<dd class="css-1ufxuu7">
Install MongoDB Enterprise and required dependencies on Debian
Linux Systems using packages.
</dd>
<dt>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/install-mongodb-enterprise-on-suse/#std-label-install-mdb-enterprise-suse">
Install on SUSE
</a>
</dt>
<dd class="css-1ufxuu7">
Install MongoDB Enterprise and required dependencies on SUSE
Enterprise Linux.
</dd>
<dt>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/install-mongodb-enterprise-on-amazon/#std-label-install-mdb-enterprise-amazon-linux">
Install on Amazon
</a>
</dt>
<dd class="css-1ufxuu7">
Install MongoDB Enterprise and required dependencies on Amazon
Linux AMI.
</dd>
</dl>
</section>
|
https://www.mongodb.com/docs/manual/reference/command/killSessions/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
killSessions
<a class="headerlink leafygreen-ui-1kepx47" href="#killsessions" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="killsessions">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#definition" target="_self">
<span>
Definition
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#syntax" target="_self">
<span>
Syntax
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#compatibility" target="_self">
<span>
Compatibility
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#command-fields" target="_self">
<span>
Command Fields
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#view-existing-sessions" target="_self">
<span>
View Existing Sessions
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#behavior" target="_self">
<span>
Behavior
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#example" target="_self">
<span>
Example
</span>
</a>
</li>
</ul>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Definition
<a class="headerlink leafygreen-ui-1kepx47" href="#definition" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="definition">
</div>
</a>
</h2>
<dl class="dbcommand">
<dt>
<code class="leafygreen-ui-1l06pbn">
killSessions
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-dbcommand-dbcmd.killSessions" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-dbcommand-dbcmd.killSessions">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.killSessions" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
killSessions
</code>
</span>
</a>
command kills the specified sessions.
If access control is enabled, the command only kills the sessions
owned by the user.
<a class="footnote-reference header-buffer" href="#footnote-exception" id="ref-exception-id1">
[
<!-- -->
1
<!-- -->
]
</a>
</p>
</dd>
</dl>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Syntax
<a class="headerlink leafygreen-ui-1kepx47" href="#syntax" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="syntax">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The command has the following syntax:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.runCommand(\n {\n killSessions: [ { id : <uuid> }, ... ]\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">runCommand</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">killSessions</span>: <!-- -->[ <!-- -->{ <!-- -->id <!-- -->: <<span class="lg-highlight-variable lg-highlight-constant">UUID</span>> <!-- -->}<!-- -->, <!-- -->...<!-- --> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Compatibility
<a class="headerlink leafygreen-ui-1kepx47" href="#compatibility" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="compatibility">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
This command is available in deployments hosted in the following environments:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas?tck=docs_server" target="_self">
<span>
MongoDB Atlas
</span>
</a>
: The fully
managed service for MongoDB deployments in the cloud
</p>
</li>
</ul>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
This command is not supported in M0, M2, and M5 clusters.
For more information, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/unsupported-commands/" target="_self">
<span>
Unsupported Commands
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/install-enterprise/#std-label-install-mdb-enterprise">
MongoDB Enterprise
</a>
: The
subscription-based, self-managed version of MongoDB
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/install-community/#std-label-install-mdb-community-edition">
MongoDB Community
</a>
: The
source-available, free-to-use, and self-managed version of MongoDB
</p>
</li>
</ul>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Command Fields
<a class="headerlink leafygreen-ui-1kepx47" href="#command-fields" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="command-fields">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The command takes an array of documents that specify the UUID portion
of the session id. Specify an empty array
<code class="leafygreen-ui-1l06pbn">
[ ]
</code>
to kill all sessions,
or if access control is enabled, all sessions owned by the user.
<a class="footnote-reference header-buffer" href="#footnote-exception" id="ref-exception-id2">
[
<!-- -->
1
<!-- -->
]
</a>
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
View Existing Sessions
<a class="headerlink leafygreen-ui-1kepx47" href="#view-existing-sessions" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="view-existing-sessions">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
To view existing sessions, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/listSessions/#mongodb-pipeline-pipe.-listSessions">
<code class="leafygreen-ui-1l06pbn">
$listSessions
</code>
</a>
operation or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/listLocalSessions/#mongodb-pipeline-pipe.-listLocalSessions">
<code class="leafygreen-ui-1l06pbn">
$listLocalSessions
</code>
.
</a>
</p>
<table class="header-buffer leafygreen-ui-rbqgrl" frame="void" id="footnote-exception" rules="none">
<colgroup>
<col/>
</colgroup>
<tbody valign="top">
<tr>
<td class="leafygreen-ui-17r2xs0">
[
<!-- -->
1
<!-- -->
]
</td>
<td class="leafygreen-ui-17r2xs0">
<em>
(
<a href="#ref-exception-id1">
1
</a>
,
<a href="#ref-exception-id2">
2
</a>
)
</em>
<!-- -->
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.killSessions" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
killSessions
</code>
</span>
</a>
operation ignores sessions that have
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/transactions/#std-label-transactions">
transactions
</a>
in prepared state. See
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-killSessions-behavior" target="_self">
<span>
Behavior
</span>
</a>
for details.
</td>
</tr>
</tbody>
</table>
<span class="leafygreen-ui-1qnjd6d" id="std-label-killSessions-behavior">
</span>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Behavior
<a class="headerlink leafygreen-ui-1kepx47" href="#behavior" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="behavior">
</div>
</a>
</h2>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Session Identification
<a class="headerlink leafygreen-ui-1kepx47" href="#session-identification" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="session-identification">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
MongoDB concatenates each of the specified UUIDs with the hash of the
authenticated user credentials to identify the user's sessions to kill.
If the user has no session that match, the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.killSessions" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
killSessions
</code>
</span>
</a>
has no effect.
</p>
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
In-progress Operations
<a class="headerlink leafygreen-ui-1kepx47" href="#in-progress-operations" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="in-progress-operations">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
Killing a session kills any in-progress operations in the session and
closes any open cursors associated with these operations.
</p>
</section>
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Killed Session Availability
<a class="headerlink leafygreen-ui-1kepx47" href="#killed-session-availability" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="killed-session-availability">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
The killed session may still be listed as a current session, and future
operations may use the killed session. To view existing sessions, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/listSessions/#mongodb-pipeline-pipe.-listSessions">
<code class="leafygreen-ui-1l06pbn">
$listSessions
</code>
</a>
operation or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/listLocalSessions/#mongodb-pipeline-pipe.-listLocalSessions">
<code class="leafygreen-ui-1l06pbn">
$listLocalSessions
</code>
.
</a>
</p>
</section>
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Sessions with Transactions in Prepared State
<a class="headerlink leafygreen-ui-1kepx47" href="#sessions-with-transactions-in-prepared-state" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="sessions-with-transactions-in-prepared-state">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.killSessions" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
killSessions
</code>
</span>
</a>
operation ignores sessions that have
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/transactions/">
transactions
</a>
in prepared state. Transactions in prepared state
refer to transactions with write operations that span multiple shards
whose commit coordinator has completed the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/currentOp/#mongodb-data--currentOp.twoPhaseCommitCoordinator.action">
<code class="leafygreen-ui-1l06pbn">
"sendingPrepare"
action
</code>
.
</a>
</p>
</section>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Example
<a class="headerlink leafygreen-ui-1kepx47" href="#example" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="example">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The following operation kills the specified session for the user:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.runCommand( { killSessions: [ { id: UUID(\"f9b3d8d9-9496-4fff-868f-04a6196fc58a\") } ] } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">runCommand</span>( <!-- -->{ <span class="lg-highlight-attr">killSessions</span>: <!-- -->[ <!-- -->{ <span class="lg-highlight-attr">id</span>: <span class="lg-highlight-title lg-highlight-function">UUID</span>(<span class="lg-highlight-string">"f9b3d8d9-9496-4fff-868f-04a6196fc58a"</span>) } ] } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.killOp/#std-label-kill-write-ops-sharded-cluster">
Kill Write Operations
</a>
</p>
</div>
</div>
</section>
</section>
|
https://www.mongodb.com/docs/manual/tutorial/authenticate-a-user/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Authenticate a User with Self-Managed Deployments
<a class="headerlink leafygreen-ui-1kepx47" href="#authenticate-a-user-with-self-managed-deployments" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="authenticate-a-user-with-self-managed-deployments">
</div>
</a>
</h1>
<p class="leafygreen-ui-1kp3ins">
To authenticate as a user, you must provide a username, password, and the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/options/#std-option-mongosh.--authenticationDatabase" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
authentication database
</code>
</span>
</a>
associated
with that user.
</p>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
It is not possible to switch between users in the same
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
session. Authenticating as a different user
means the session has the privileges of
<strong>
both
</strong>
authenticated
users. To switch between users exit and relaunch
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
.
</span>
</a>
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Using
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
, you can:
</p>
<div aria-hidden="true">
</div>
<div class="leafygreen-ui-1b75luy" data-lgid="lg-tabs">
<div class="leafygreen-ui-jp7pox" id="tabs-4">
<div aria-label="Tabs to describe usage of authafter/cmdline" aria-orientation="horizontal" class="leafygreen-ui-m8p1vb lg-ui-tab-list-0000" data-lgid="lg-tabs-tab_list" role="tablist">
<button aria-controls="_6wmq8ppjx" aria-selected="true" class="leafygreen-ui-1l773z1" data-text="" id="_vrn6jymlg" name="" role="tab" tabindex="0">
<div class="leafygreen-ui-1nxuzmg">
Authenticate during Connection
</div>
</button>
<button aria-controls="_kwi57a1na" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_jfin9io7h" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Authenticate after Connection
</div>
</button>
</div>
<div class="leafygreen-ui-ov1ktg">
<div class="leafygreen-ui-1sg2lsz">
</div>
</div>
</div>
<div class="lg-ui-tab-panels-0000" data-lgid="lg-tabs-tab_panels">
<div>
<div aria-labelledby="_myxfckqp7" class="" id="_6gk2sh5a0" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
Start
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
with the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/options/#std-option-mongosh.--username" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
-u
<username>
</code>
</span>
</a>
,
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/options/#std-option-mongosh.--password" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
-p
</code>
</span>
</a>
, and the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/options/#std-option-mongosh.--authenticationDatabase" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
--authenticationDatabase <database>
</code>
</span>
</a>
command line options:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"mongosh --port 27017 --authenticationDatabase \\\n \"admin\" -u \"myUserAdmin\" -p","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">mongosh --port 27017 --authenticationDatabase \</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"admin"</span> -u <span class="lg-highlight-string">"myUserAdmin"</span> -p</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Enter your password when prompted.
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_me3eubgzb" class="leafygreen-ui-38lglc" id="_qf9pipst9" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
Using
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
, connect to the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instance:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"mongosh --port 27017","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">mongosh --port 27017</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
In
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
, switch to the
authentication database (in this case,
<code class="leafygreen-ui-1l06pbn">
admin
</code>
), and
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.auth/#mongodb-method-db.auth">
<code class="leafygreen-ui-1l06pbn">
db.auth(<username>, <pwd>)
</code>
</a>
method or the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/authenticate/#mongodb-dbcommand-dbcmd.authenticate">
<code class="leafygreen-ui-1l06pbn">
authenticate
</code>
</a>
command to authenticate against the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/options/#std-option-mongosh.--authenticationDatabase" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
authentication database
</code>
:
</span>
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"use admin\ndb.auth(\"myUserAdmin\", passwordPrompt()) // or cleartext password","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">use admin</td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">auth</span>(<span class="lg-highlight-string">"myUserAdmin"</span>, <span class="lg-highlight-title lg-highlight-function">passwordPrompt</span>(<!-- -->)) <span class="lg-highlight-comment">// or cleartext password</span></td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/passwordPrompt/#mongodb-method-passwordPrompt">
<code class="leafygreen-ui-1l06pbn">
passwordPrompt()
</code>
</a>
method prompts you to enter the
password. You can also specify your password directly as a string. We
recommend to use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/passwordPrompt/#mongodb-method-passwordPrompt">
<code class="leafygreen-ui-1l06pbn">
passwordPrompt()
</code>
</a>
method to avoid the
password being visible on your screen and potentially leaking the
password to your shell history.
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Enter the password when prompted.
</p>
</div>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
For examples using a MongoDB driver, see the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/drivers/" target="_self">
<span>
driver documentation
<!-- -->
.
</span>
</a>
</p>
</section>
|
https://www.mongodb.com/docs/manual/reference/operator/query-geospatial/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Geospatial Query Operators
<a class="headerlink leafygreen-ui-1kepx47" href="#geospatial-query-operators" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="geospatial-query-operators">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#operators" target="_self">
<span>
Operators
</span>
</a>
</li>
</ul>
</div>
<p class="leafygreen-ui-1kp3ins">
Geospatial operators return data based on geospatial expression
conditions.
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
For details on a specific operator, including syntax and examples,
click on the link to the operator's reference page.
</p>
</div>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Operators
<a class="headerlink leafygreen-ui-1kepx47" href="#operators" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="operators">
</div>
</a>
</h2>
<span class="leafygreen-ui-1qnjd6d" id="std-label-geospatial-query-selectors">
</span>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Query Selectors
<a class="headerlink leafygreen-ui-1kepx47" href="#query-selectors" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="query-selectors">
</div>
</a>
</h3>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:30%"/>
<col style="width:70%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Name
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/geoIntersects/#mongodb-query-op.-geoIntersects">
<code class="leafygreen-ui-1l06pbn">
$geoIntersects
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Selects geometries that intersect with a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-GeoJSON">
GeoJSON
</a>
geometry.
The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/geospatial/2dsphere/#std-label-2dsphere-index">
2dsphere
</a>
index supports
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/geoIntersects/#mongodb-query-op.-geoIntersects">
<code class="leafygreen-ui-1l06pbn">
$geoIntersects
</code>
.
</a>
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/geoWithin/#mongodb-query-op.-geoWithin">
<code class="leafygreen-ui-1l06pbn">
$geoWithin
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Selects geometries within a bounding
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/geojson/#std-label-geospatial-indexes-store-geojson">
GeoJSON geometry
</a>
. The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/geospatial/2dsphere/#std-label-2dsphere-index">
2dsphere
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/geospatial/2d/#std-label-2d-index">
2d
</a>
indexes support
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/geoWithin/#mongodb-query-op.-geoWithin">
<code class="leafygreen-ui-1l06pbn">
$geoWithin
</code>
.
</a>
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/near/#mongodb-query-op.-near">
<code class="leafygreen-ui-1l06pbn">
$near
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Returns geospatial objects in proximity to a point.
Requires a geospatial index. The
<code class="leafygreen-ui-1l06pbn">
2dsphere
</code>
and
<code class="leafygreen-ui-1l06pbn">
2d
</code>
indexes support
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/near/#mongodb-query-op.-near">
<code class="leafygreen-ui-1l06pbn">
$near
</code>
.
</a>
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/nearSphere/#mongodb-query-op.-nearSphere">
<code class="leafygreen-ui-1l06pbn">
$nearSphere
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Returns geospatial objects in proximity to a point on a sphere.
Requires a geospatial index. The
<code class="leafygreen-ui-1l06pbn">
2dsphere
</code>
and
<code class="leafygreen-ui-1l06pbn">
2d
</code>
indexes support
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/nearSphere/#mongodb-query-op.-nearSphere">
<code class="leafygreen-ui-1l06pbn">
$nearSphere
</code>
.
</a>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Geometry Specifiers
<a class="headerlink leafygreen-ui-1kepx47" href="#geometry-specifiers" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="geometry-specifiers">
</div>
</a>
</h3>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:30%"/>
<col style="width:70%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Name
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/box/#mongodb-query-op.-box">
<code class="leafygreen-ui-1l06pbn">
$box
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Specifies a rectangular box using legacy coordinate pairs for
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/geoWithin/#mongodb-query-op.-geoWithin">
<code class="leafygreen-ui-1l06pbn">
$geoWithin
</code>
</a>
queries. The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/geospatial/2d/#std-label-2d-index">
2d
</a>
index
supports
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/box/#mongodb-query-op.-box">
<code class="leafygreen-ui-1l06pbn">
$box
</code>
.
</a>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/center/#mongodb-query-op.-center">
<code class="leafygreen-ui-1l06pbn">
$center
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Specifies a circle using legacy coordinate pairs to
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/geoWithin/#mongodb-query-op.-geoWithin">
<code class="leafygreen-ui-1l06pbn">
$geoWithin
</code>
</a>
queries when using planar geometry. The
<code class="leafygreen-ui-1l06pbn">
2d
</code>
index supports
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/center/#mongodb-query-op.-center">
<code class="leafygreen-ui-1l06pbn">
$center
</code>
.
</a>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/centerSphere/#mongodb-query-op.-centerSphere">
<code class="leafygreen-ui-1l06pbn">
$centerSphere
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Specifies a circle using either legacy coordinate pairs or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-GeoJSON">
GeoJSON
</a>
format for
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/geoWithin/#mongodb-query-op.-geoWithin">
<code class="leafygreen-ui-1l06pbn">
$geoWithin
</code>
</a>
queries when using
spherical geometry. The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/geospatial/2dsphere/#std-label-2dsphere-index">
2dsphere
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/geospatial/2d/#std-label-2d-index">
2d
</a>
indexes support
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/centerSphere/#mongodb-query-op.-centerSphere">
<code class="leafygreen-ui-1l06pbn">
$centerSphere
</code>
.
</a>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/geometry/#mongodb-query-op.-geometry">
<code class="leafygreen-ui-1l06pbn">
$geometry
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Specifies a geometry in
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-GeoJSON">
GeoJSON
</a>
format to geospatial query operators.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/maxDistance/#mongodb-query-op.-maxDistance">
<code class="leafygreen-ui-1l06pbn">
$maxDistance
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Specifies a maximum distance to limit the results of
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/near/#mongodb-query-op.-near">
<code class="leafygreen-ui-1l06pbn">
$near
</code>
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/nearSphere/#mongodb-query-op.-nearSphere">
<code class="leafygreen-ui-1l06pbn">
$nearSphere
</code>
</a>
queries. The
<code class="leafygreen-ui-1l06pbn">
2dsphere
</code>
and
<code class="leafygreen-ui-1l06pbn">
2d
</code>
indexes support
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/maxDistance/#mongodb-query-op.-maxDistance">
<code class="leafygreen-ui-1l06pbn">
$maxDistance
</code>
.
</a>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/minDistance/#mongodb-query-op.-minDistance">
<code class="leafygreen-ui-1l06pbn">
$minDistance
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Specifies a minimum distance to limit the results of
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/near/#mongodb-query-op.-near">
<code class="leafygreen-ui-1l06pbn">
$near
</code>
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/nearSphere/#mongodb-query-op.-nearSphere">
<code class="leafygreen-ui-1l06pbn">
$nearSphere
</code>
</a>
queries. For use with
<code class="leafygreen-ui-1l06pbn">
2dsphere
</code>
index
only.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/polygon/#mongodb-query-op.-polygon">
<code class="leafygreen-ui-1l06pbn">
$polygon
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Specifies a polygon to using legacy coordinate pairs for
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/geoWithin/#mongodb-query-op.-geoWithin">
<code class="leafygreen-ui-1l06pbn">
$geoWithin
</code>
</a>
queries. The
<code class="leafygreen-ui-1l06pbn">
2d
</code>
index supports
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/polygon/#mongodb-query-op.-polygon">
<code class="leafygreen-ui-1l06pbn">
$polygon
</code>
.
</a>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</section>
</section>
</section>
|
https://www.mongodb.com/docs/manual/administration/production-checklist-operations/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Operations Checklist for Self-Managed Deployments
<a class="headerlink leafygreen-ui-1kepx47" href="#operations-checklist-for-self-managed-deployments" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="operations-checklist-for-self-managed-deployments">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#filesystem" target="_self">
<span>
Filesystem
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#replication" target="_self">
<span>
Replication
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#sharding" target="_self">
<span>
Sharding
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#journaling--wiredtiger-storage-engine" target="_self">
<span>
Journaling: WiredTiger Storage Engine
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#hardware" target="_self">
<span>
Hardware
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#deployments-to-cloud-hardware" target="_self">
<span>
Deployments to Cloud Hardware
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#operating-system-configuration" target="_self">
<span>
Operating System Configuration
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#backups" target="_self">
<span>
Backups
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#monitoring" target="_self">
<span>
Monitoring
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#load-balancing" target="_self">
<span>
Load Balancing
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#security" target="_self">
<span>
Security
</span>
</a>
</li>
</ul>
</div>
<p class="leafygreen-ui-1kp3ins">
The following checklist, along with the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/production-checklist-development/">
Development Checklist
</a>
list, provides
recommendations to help you avoid issues in your production MongoDB
deployment.
</p>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Filesystem
<a class="headerlink leafygreen-ui-1kepx47" href="#filesystem" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="filesystem">
</div>
</a>
</h2>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Align your disk partitions with your RAID configuration.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Avoid using NFS drives for your
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-storage.dbPath">
<code class="leafygreen-ui-1l06pbn">
dbPath
</code>
</a>
.
Using NFS drives can result in degraded and unstable performance.
See:
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/production-notes/#std-label-production-nfs">
Remote Filesystems (NFS)
</a>
for more information.
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
VMware users should use VMware virtual drives over NFS.
</p>
</li>
</ul>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Linux/Unix: format your drives into XFS or EXT4. If possible, use
XFS as it generally performs better with MongoDB.
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
With the WiredTiger storage engine, use of XFS is
<strong>
strongly
recommended
</strong>
to avoid performance issues found when using EXT4
with WiredTiger.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
If using RAID, you may need to configure XFS with your RAID
geometry.
</p>
</li>
</ul>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Windows: use the NTFS file system.
<strong>
Do not
</strong>
use any FAT file system (i.e. FAT 16/32/exFAT).
</p>
</li>
</ul>
<span class="leafygreen-ui-1qnjd6d" id="std-label-production-checklist-replication">
</span>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Replication
<a class="headerlink leafygreen-ui-1kepx47" href="#replication" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="replication">
</div>
</a>
</h2>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Verify that all non-hidden replica set members are identically
provisioned in terms of their RAM, CPU, disk, network setup, etc.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/change-oplog-size/#std-label-tutorial-change-oplog-size">
Configure the oplog size
</a>
to
suit your use case:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The replication oplog window should cover normal maintenance and
downtime windows to avoid the need for a full resync.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The replication oplog window should cover the time needed to
restore a replica set member from the last backup.
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
The replication oplog window doesn't need to cover the
time needed to restore a replica set member via initial sync
as the oplog records are pulled during the data copy.
However, the member being restored must have enough disk
space in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/local-database/#std-label-replica-set-local-database">
local
</a>
database to temporarily store these oplog records for the
duration of this data copy stage.
</p>
</div>
</div>
</li>
</ul>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Ensure that your replica set includes at least three data-bearing voting
members that run with journaling and that you issue writes
with
<code class="leafygreen-ui-1l06pbn">
w: majority
</code>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/write-concern/">
write concern
</a>
for availability and durability.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Use hostnames when configuring replica set members, rather than IP
addresses.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Ensure full bidirectional network connectivity between all
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
instances.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Ensure that each host can resolve itself.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Ensure that your replica set contains an odd number of voting members.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Ensure that
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
instances have
<code class="leafygreen-ui-1l06pbn">
0
</code>
or
<code class="leafygreen-ui-1l06pbn">
1
</code>
votes.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-high-availability">
high availability
</a>
, deploy your replica set into a
<em>
minimum
</em>
of three data centers.
</p>
</li>
</ul>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Sharding
<a class="headerlink leafygreen-ui-1kepx47" href="#sharding" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="sharding">
</div>
</a>
</h2>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Place your
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/sharded-cluster-config-servers/#std-label-sharding-config-server">
config servers
</a>
on dedicated hardware for
optimal performance in large clusters. Ensure that the hardware has
enough RAM to hold the data files entirely in memory and that it
has dedicated storage.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Deploy
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
routers in accordance with the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/sharded-cluster-components/#std-label-sc-production-configuration">
Production Configuration
</a>
guidelines.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Use NTP to synchronize the clocks on all components of your sharded
cluster.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Ensure full bidirectional network connectivity between
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
, and config servers.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Use CNAMEs to identify your config servers to the cluster so that
you can rename and renumber your config servers without downtime.
</p>
</li>
</ul>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Journaling: WiredTiger Storage Engine
<a class="headerlink leafygreen-ui-1kepx47" href="#journaling--wiredtiger-storage-engine" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="journaling--wiredtiger-storage-engine">
</div>
</a>
</h2>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Ensure that all instances use
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/journaling/#std-label-journaling-internals">
journaling
<!-- -->
.
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Place the journal on its own low-latency disk for write-intensive
workloads. Note that this will affect snapshot-style backups as
the files constituting the state of the database will reside on
separate volumes.
</p>
</li>
</ul>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Hardware
<a class="headerlink leafygreen-ui-1kepx47" href="#hardware" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="hardware">
</div>
</a>
</h2>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Use RAID10 and SSD drives for optimal performance.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
SAN and Virtualization:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Ensure that each
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
has provisioned IOPS for its
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-storage.dbPath">
<code class="leafygreen-ui-1l06pbn">
dbPath
</code>
</a>
, or has its own physical drive or LUN.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Avoid dynamic memory features, such as memory ballooning, when
running in virtual environments.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Avoid placing all replica set members on the same SAN, as the SAN
can be a single point of failure.
</p>
</li>
</ul>
</li>
</ul>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Deployments to Cloud Hardware
<a class="headerlink leafygreen-ui-1kepx47" href="#deployments-to-cloud-hardware" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="deployments-to-cloud-hardware">
</div>
</a>
</h2>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Windows Azure: Adjust the TCP keepalive (
<code class="leafygreen-ui-1l06pbn">
tcp_keepalive_time
</code>
) to
100-120. The TCP idle timeout on the Azure load balancer is too
slow for MongoDB's connection pooling behavior. See:
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/production-notes/#std-label-windows-azure-production-notes">
Azure Production Notes
</a>
for more information.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Use MongoDB version 2.6.4 or later on systems with high-latency
storage, such as Windows Azure, as these versions include
performance improvements for those systems.
</p>
</li>
</ul>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Operating System Configuration
<a class="headerlink leafygreen-ui-1kepx47" href="#operating-system-configuration" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="operating-system-configuration">
</div>
</a>
</h2>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Linux
<a class="headerlink leafygreen-ui-1kepx47" href="#linux" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="linux">
</div>
</a>
</h3>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
If running MongoDB 8.0 or later,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/tcmalloc-performance/#std-label-enable-thp">
turn on Transparent Hugepages
<!-- -->
.
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
If running MongoDB 7.0 or earlier,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/disable-transparent-huge-pages/#std-label-disable-thp">
turn off Transparent Hugepages
<!-- -->
.
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/production-notes/#std-label-readahead">
Adjust the readahead settings
</a>
on the devices
storing your database files.
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For the WiredTiger storage engine, set readahead between 8
and 32 regardless of storage media type (spinning disk, SSD,
etc.), unless testing shows a measurable, repeatable, and
reliable benefit in a higher readahead value.
</p>
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://support.mongodb.com/welcome?tck=docs_server" target="_self">
<span>
MongoDB commercial support
</span>
</a>
can provide
advice and guidance on alternate readahead configurations.
</p>
</li>
</ul>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
If using
<code class="leafygreen-ui-1l06pbn">
tuned
</code>
on RHEL / CentOS, you must customize your
<code class="leafygreen-ui-1l06pbn">
tuned
</code>
profile. Many of the
<code class="leafygreen-ui-1l06pbn">
tuned
</code>
profiles that ship with
RHEL / CentOS can negatively impact performance with their default
settings. Customize your chosen
<code class="leafygreen-ui-1l06pbn">
tuned
</code>
profile to:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Enable or disable Transparent Hugepages, depending on your MongoDB version.
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
If you are using MongoDB 8.0 or later, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/tcmalloc-performance/#std-label-enable-thp-configure-thp-tuned">
using tuned and ktune
to enable THP
<!-- -->
.
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
If you are using MongoDB 7.0 or earlier, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/disable-transparent-huge-pages/#std-label-disable-thp-configure-thp-tuned">
using tuned and ktune
to disable THP
<!-- -->
.
</a>
</p>
</li>
</ul>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Set readahead between 8 and 32 regardless of storage media type.
See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/production-notes/#std-label-readahead">
Readahead settings
</a>
for more information.
</p>
</li>
</ul>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-cfq">
cfq
</a>
or
<code class="leafygreen-ui-1l06pbn">
deadline
</code>
disk schedulers for SSDs.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-cfq">
cfq
</a>
disk scheduler for virtualized drives in guest VMs.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Disable NUMA or set vm.zone_reclaim_mode to 0 and run
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
instances with node interleaving. See:
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/production-notes/#std-label-production-numa">
MongoDB and NUMA Hardware
</a>
for more information.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Adjust the
<code class="leafygreen-ui-1l06pbn">
ulimit
</code>
values on your hardware to suit your use case. If
multiple
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instances are
running under the same user, scale the
<code class="leafygreen-ui-1l06pbn">
ulimit
</code>
values
accordingly. See:
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/ulimit/">
UNIX
<code class="leafygreen-ui-1l06pbn">
ulimit
</code>
Settings for Self-Managed Deployments
</a>
for more information.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Use
<code class="leafygreen-ui-1l06pbn">
noatime
</code>
for the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-storage.dbPath">
<code class="leafygreen-ui-1l06pbn">
dbPath
</code>
</a>
mount point.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Configure sufficient file handles (
<code class="leafygreen-ui-1l06pbn">
fs.file-max
</code>
), kernel pid
limit (
<code class="leafygreen-ui-1l06pbn">
kernel.pid_max
</code>
), maximum threads per process
(
<code class="leafygreen-ui-1l06pbn">
kernel.threads-max
</code>
), and maximum number of memory map areas per
process (
<code class="leafygreen-ui-1l06pbn">
vm.max_map_count
</code>
) for your deployment. For large systems,
the following values provide a good starting point:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
fs.file-max
</code>
value of 98000,
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
kernel.pid_max
</code>
value of 64000,
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
kernel.threads-max
</code>
value of 64000, and
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
vm.max_map_count
</code>
value of 131060
</p>
</li>
</ul>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Ensure that your system has swap space configured. Refer to your
operating system's documentation for details on appropriate sizing.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Ensure that the system default TCP keepalive is set correctly. A
value of 120 often provides better performance for replica sets and
sharded clusters. See:
<a class="leafygreen-ui-tqgtui" href="/docs/manual/faq/diagnostics/#std-label-faq-keepalive">
Does TCP
<code class="leafygreen-ui-1l06pbn">
keepalive
</code>
time affect MongoDB Deployments?
</a>
in the Frequently Asked
Questions for more information.
</p>
</li>
</ul>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Windows
<a class="headerlink leafygreen-ui-1kepx47" href="#windows" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="windows">
</div>
</a>
</h3>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Consider disabling NTFS "last access time" updates. This is
analogous to disabling
<code class="leafygreen-ui-1l06pbn">
atime
</code>
on Unix-like systems.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Format NTFS disks using the default
<span class="guilabel css-h15tq0">
Allocation unit size
</span>
of 4096 bytes.
</p>
</li>
</ul>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Backups
<a class="headerlink leafygreen-ui-1kepx47" href="#backups" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="backups">
</div>
</a>
</h2>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Schedule periodic tests of your back up and restore process to have
time estimates on hand, and to verify its functionality.
</p>
</li>
</ul>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Monitoring
<a class="headerlink leafygreen-ui-1kepx47" href="#monitoring" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="monitoring">
</div>
</a>
</h2>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Use
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://cloud.mongodb.com/?tck=docs_server" target="_self">
<span>
MongoDB Cloud Manager
</span>
</a>
or
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/products/mongodb-enterprise-advanced?tck=docs_server" target="_self">
<span>
Ops Manager, an on-premise
solution available in MongoDB Enterprise Advanced
</span>
</a>
or another monitoring system to
monitor key database metrics and set up alerts for them. Include
alerts for the following metrics:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
replication lag
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
replication oplog window
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
assertions
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
queues
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
page faults
</p>
</li>
</ul>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Monitor hardware statistics for your servers. In particular,
pay attention to the disk use, CPU, and available disk space.
</p>
<p class="leafygreen-ui-1kp3ins">
In the absence of disk space monitoring, or as a precaution:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Create a dummy 4 GB file on the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-storage.dbPath">
<code class="leafygreen-ui-1l06pbn">
storage.dbPath
</code>
</a>
drive
to ensure available space if the disk becomes full.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
A combination of
<code class="leafygreen-ui-1l06pbn">
cron+df
</code>
can alert when disk space hits a
high-water mark, if no other monitoring tool is available.
</p>
</li>
</ul>
</li>
</ul>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Load Balancing
<a class="headerlink leafygreen-ui-1kepx47" href="#load-balancing" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="load-balancing">
</div>
</a>
</h2>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Configure load balancers to enable "sticky sessions" or "client
affinity", with a sufficient timeout for existing connections.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Avoid placing load balancers between MongoDB cluster or replica set
components.
</p>
</li>
</ul>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Security
<a class="headerlink leafygreen-ui-1kepx47" href="#security" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="security">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
For a list of security measures to protect your MongoDB installation,
see the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/security-checklist/#std-label-security-checklist">
MongoDB Security Checklist
<!-- -->
.
</a>
</p>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/command/logout/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
logout
<a class="headerlink leafygreen-ui-1kepx47" href="#logout" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="logout">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#definition" target="_self">
<span>
Definition
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#compatibility" target="_self">
<span>
Compatibility
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#syntax" target="_self">
<span>
Syntax
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#example" target="_self">
<span>
Example
</span>
</a>
</li>
</ul>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Definition
<a class="headerlink leafygreen-ui-1kepx47" href="#definition" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="definition">
</div>
</a>
</h2>
<dl class="dbcommand">
<dt>
<code class="leafygreen-ui-1l06pbn">
logout
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-dbcommand-dbcmd.logout" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-dbcommand-dbcmd.logout">
</div>
</a>
</dt>
<dd>
<div>
<p>
<em>
Deprecated
<!-- -->
since version
<!-- -->
5.0
</em>
.
</p>
</div>
<p class="leafygreen-ui-1kp3ins">
If you enabled auditing, an attempt to use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.logout" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
logout
</code>
</span>
</a>
command will create an entry in the audit log.
</p>
<p class="leafygreen-ui-1kp3ins">
This command will be removed in a future release.
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
This command was used when you could log in as multiple users on a
single logical connection. Because this is no longer possible,
running
<code class="leafygreen-ui-1l06pbn">
logout
</code>
is no longer supported. Going forward, you can
achieve the same results by closing your connection.
</p>
</div>
</div>
</dd>
</dl>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Compatibility
<a class="headerlink leafygreen-ui-1kepx47" href="#compatibility" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="compatibility">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
This command is available in deployments hosted in the following environments:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas?tck=docs_server" target="_self">
<span>
MongoDB Atlas
</span>
</a>
: The fully
managed service for MongoDB deployments in the cloud
</p>
</li>
</ul>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
This command is supported in all MongoDB Atlas clusters.
For information on Atlas support for all commands, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/unsupported-commands/" target="_self">
<span>
Unsupported Commands
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/install-enterprise/#std-label-install-mdb-enterprise">
MongoDB Enterprise
</a>
: The
subscription-based, self-managed version of MongoDB
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/install-community/#std-label-install-mdb-community-edition">
MongoDB Community
</a>
: The
source-available, free-to-use, and self-managed version of MongoDB
</p>
</li>
</ul>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Syntax
<a class="headerlink leafygreen-ui-1kepx47" href="#syntax" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="syntax">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The command has the following syntax:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.runCommand(\n {\n logout: 1\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">runCommand</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">logout</span>: <span class="lg-highlight-number">1</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</button>
</div>
</div>
</div>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Example
<a class="headerlink leafygreen-ui-1kepx47" href="#example" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="example">
</div>
</a>
</h2>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
If you're not logged in and using authentication,
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.logout" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
logout
</code>
</span>
</a>
has no effect.
</p>
<p class="leafygreen-ui-1kp3ins">
Because MongoDB allows users defined in one database to have
privileges on another database, you must call
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.logout" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
logout
</code>
</span>
</a>
while
using the same database context that you authenticated to.
</p>
<p class="leafygreen-ui-1kp3ins">
If you authenticated to a database such as
<code class="leafygreen-ui-1l06pbn">
users
</code>
or
<code class="leafygreen-ui-1l06pbn">
$external
</code>
, you must issue
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.logout" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
logout
</code>
</span>
</a>
against this
database in order to successfully log out.
</p>
</div>
</div>
<div class="leafygreen-ui-vg7qwp" role="note">
<h2 class="leafygreen-ui-2xicti">
Example
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Use the
<code class="leafygreen-ui-1l06pbn">
use <database-name>
</code>
helper in
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
, or the
following
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.getSiblingDB/#mongodb-method-db.getSiblingDB">
<code class="leafygreen-ui-1l06pbn">
db.getSiblingDB()
</code>
</a>
method in an interactive
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
session or in
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
shell
scripts to change the
<code class="leafygreen-ui-1l06pbn">
db
</code>
object:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db = db.getSiblingDB('<database-name>')","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db <!-- -->= <!-- -->db.<span class="lg-highlight-title lg-highlight-function">getSiblingDB</span>(<span class="lg-highlight-string">'<database-name>'</span>)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
When you have set the database context and
<code class="leafygreen-ui-1l06pbn">
db
</code>
object, you
can use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.logout" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
logout
</code>
</span>
</a>
to log out of database as in the
following operation:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.runCommand( { logout: 1 } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">runCommand</span>( <!-- -->{ <span class="lg-highlight-attr">logout</span>: <span class="lg-highlight-number">1</span> } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</div>
</div>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/method/db.dropDatabase/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
db.dropDatabase()
<a class="headerlink leafygreen-ui-1kepx47" href="#db.dropdatabase--" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="db.dropdatabase--">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#definition" target="_self">
<span>
Definition
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#compatibility" target="_self">
<span>
Compatibility
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#syntax" target="_self">
<span>
Syntax
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#behavior" target="_self">
<span>
Behavior
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#example" target="_self">
<span>
Example
</span>
</a>
</li>
</ul>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Definition
<a class="headerlink leafygreen-ui-1kepx47" href="#definition" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="definition">
</div>
</a>
</h2>
<dl class="method">
<dt>
<code class="leafygreen-ui-1l06pbn">
db.dropDatabase(<writeConcern>)
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-method-db.dropDatabase" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-method-db.dropDatabase">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Removes the current database, deleting the associated data files.
</p>
</dd>
</dl>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Compatibility
<a class="headerlink leafygreen-ui-1kepx47" href="#compatibility" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="compatibility">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
This method is available in deployments hosted in the following environments:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas?tck=docs_server" target="_self">
<span>
MongoDB Atlas
</span>
</a>
: The fully
managed service for MongoDB deployments in the cloud
</p>
</li>
</ul>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
This command is supported in all MongoDB Atlas clusters.
For information on Atlas support for all commands, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/unsupported-commands/" target="_self">
<span>
Unsupported Commands
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/install-enterprise/#std-label-install-mdb-enterprise">
MongoDB Enterprise
</a>
: The
subscription-based, self-managed version of MongoDB
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/install-community/#std-label-install-mdb-community-edition">
MongoDB Community
</a>
: The
source-available, free-to-use, and self-managed version of MongoDB
</p>
</li>
</ul>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Syntax
<a class="headerlink leafygreen-ui-1kepx47" href="#syntax" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="syntax">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-db.dropDatabase" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
db.dropDatabase()
</code>
</span>
</a>
method takes an optional parameter:
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:20%"/>
<col style="width:80%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Field
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
writeConcern
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Optional. A document expressing the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/write-concern/">
write concern
</a>
to use if greater than
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/write-concern/#mongodb-writeconcern-writeconcern.-majority-">
<code class="leafygreen-ui-1l06pbn">
"majority"
</code>
.
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ w: <value>, j: <boolean>, wtimeout: <number> }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-attr">w</span>: <<!-- -->value<!-- -->><!-- -->,<!-- --> <span class="lg-highlight-attr">j</span>: <<!-- -->boolean<!-- -->><!-- -->,<!-- --> <span class="lg-highlight-attr">wtimeout</span>: <<!-- -->number<!-- -->> <!-- -->}</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Omit to use the default/minimum write concern of
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/write-concern/#mongodb-writeconcern-writeconcern.-majority-">
<code class="leafygreen-ui-1l06pbn">
"majority"
</code>
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
When issued on a replica set, if the specified write concern
results in fewer member acknowledgments than write concern
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/write-concern/#mongodb-writeconcern-writeconcern.-majority-">
<code class="leafygreen-ui-1l06pbn">
"majority"
</code>
</a>
, the operation uses
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/write-concern/#mongodb-writeconcern-writeconcern.-majority-">
<code class="leafygreen-ui-1l06pbn">
"majority"
</code>
</a>
. Otherwise, the specified write
concern is used.
</p>
<p class="leafygreen-ui-1kp3ins">
When issued on a sharded cluster, MongoDB converts the specified
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/write-concern/#std-label-write-concern">
write concern
</a>
to
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/write-concern/#mongodb-writeconcern-writeconcern.-majority-">
<code class="leafygreen-ui-1l06pbn">
"majority"
</code>
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
See also
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-db.dropDatabase-wc" target="_self">
<span>
Behavior
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Behavior
<a class="headerlink leafygreen-ui-1kepx47" href="#behavior" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="behavior">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-db.dropDatabase" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
db.dropDatabase()
</code>
</span>
</a>
wraps the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/dropDatabase/#mongodb-dbcommand-dbcmd.dropDatabase">
<code class="leafygreen-ui-1l06pbn">
dropDatabase
</code>
</a>
command.
</p>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Locks
<a class="headerlink leafygreen-ui-1kepx47" href="#locks" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="locks">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The operation takes an exclusive (X)
database lock only.
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
User Management
<a class="headerlink leafygreen-ui-1kepx47" href="#user-management" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="user-management">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
This command does not delete the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/security-users/#std-label-authentication-client-users">
users
</a>
associated with the current
database. To drop the associated users, run the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/dropAllUsersFromDatabase/#mongodb-dbcommand-dbcmd.dropAllUsersFromDatabase">
<code class="leafygreen-ui-1l06pbn">
dropAllUsersFromDatabase
</code>
</a>
command in the database you are
deleting.
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Indexes
<a class="headerlink leafygreen-ui-1kepx47" href="#indexes" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="indexes">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-db.dropDatabase" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
db.dropDatabase()
</code>
</span>
</a>
method and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/dropDatabase/#mongodb-dbcommand-dbcmd.dropDatabase">
<code class="leafygreen-ui-1l06pbn">
dropDatabase
</code>
</a>
command
abort any in-progress index builds on collections in the target database
before dropping the database. Aborting an index build has the same effect as
dropping the built index.
</p>
<p class="leafygreen-ui-1kp3ins">
For replica sets or shard replica sets, aborting an index on the primary
does not simultaneously abort secondary index builds. MongoDB attempts
to abort the in-progress builds for the specified indexes on the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-primary">
primary
</a>
and if successful creates an associated
<code class="leafygreen-ui-1l06pbn">
abort
</code>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-oplog">
oplog
</a>
entry.
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-secondary">
Secondary
</a>
members with
replicated in-progress builds wait for a commit or abort oplog entry
from the primary before either committing or aborting the index build.
</p>
<span class="leafygreen-ui-1qnjd6d" id="std-label-db.dropDatabase-wc">
</span>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Replica Set and Sharded Clusters
<a class="headerlink leafygreen-ui-1kepx47" href="#replica-set-and-sharded-clusters" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="replica-set-and-sharded-clusters">
</div>
</a>
</h3>
<dl>
<dt>
Replica Sets
</dt>
<dd class="css-1ufxuu7">
<p class="leafygreen-ui-1kp3ins">
At minimum,
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-db.dropDatabase" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
db.dropDatabase()
</code>
</span>
</a>
waits until all collection
drops in the database have propagated to a majority of the replica set
members (i.e. uses the write concern
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/write-concern/#mongodb-writeconcern-writeconcern.-majority-">
<code class="leafygreen-ui-1l06pbn">
"majority"
</code>
</a>
).
</p>
<p class="leafygreen-ui-1kp3ins">
You can specify a write concern to the method. If you specify a write concern
that requires acknowledgment from fewer than the majority, the method uses
write concern
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/write-concern/#mongodb-writeconcern-writeconcern.-majority-">
<code class="leafygreen-ui-1l06pbn">
"majority"
</code>
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
If you specify a write concern that requires acknowledgment from
more than the majority, the method uses the specified write concern.
</p>
</dd>
<dt>
Sharded Clusters
</dt>
<dd class="css-1ufxuu7">
<p class="leafygreen-ui-1kp3ins">
When issued on a sharded cluster, MongoDB converts the specified
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/write-concern/#std-label-write-concern">
write concern
</a>
to
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/write-concern/#mongodb-writeconcern-writeconcern.-majority-">
<code class="leafygreen-ui-1l06pbn">
"majority"
</code>
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
If you intend to create a new database with the same name as the dropped
database, you must run the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/dropDatabase/#mongodb-dbcommand-dbcmd.dropDatabase">
<code class="leafygreen-ui-1l06pbn">
dropDatabase
</code>
</a>
command on a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
This ensures that all cluster nodes refresh their metadata cache,
which includes the location of the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/sharded-cluster-shards/#std-label-primary-shard">
primary shard
</a>
for the new database. Otherwise, you may miss data on reads, and may not
write data to the correct shard. To recover, you must manually
intervene.
</p>
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 5.0, the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/dropDatabase/#mongodb-dbcommand-dbcmd.dropDatabase">
<code class="leafygreen-ui-1l06pbn">
dropDatabase
</code>
</a>
command and
the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-db.dropDatabase" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
db.dropDatabase()
</code>
</span>
</a>
method return an error if you try to
drop the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-admin-database">
admin database
</a>
or the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-config-database">
config database
</a>
from a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
.
</a>
</p>
<div class="leafygreen-ui-1sjx7ru" role="note">
<h2 class="leafygreen-ui-29m78u">
Warning
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Dropping the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-admin-database">
admin database
</a>
or the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-config-database">
config database
</a>
can leave your cluster in an unusable state.
</p>
</div>
</div>
</dd>
</dl>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Change Streams
<a class="headerlink leafygreen-ui-1kepx47" href="#change-streams" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="change-streams">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-db.dropDatabase" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
db.dropDatabase()
</code>
</span>
</a>
method and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/dropDatabase/#mongodb-dbcommand-dbcmd.dropDatabase">
<code class="leafygreen-ui-1l06pbn">
dropDatabase
</code>
</a>
command create an
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/change-events/invalidate/#std-label-change-event-invalidate">
invalidate
</a>
for any
<a class="leafygreen-ui-tqgtui" href="/docs/manual/changeStreams/">
Change Streams
</a>
opened on the dropped database or opened on the
collections in the dropped database.
</p>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Example
<a class="headerlink leafygreen-ui-1kepx47" href="#example" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="example">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The following example in
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
uses the
<code class="leafygreen-ui-1l06pbn">
use
<database>
</code>
operation to switch the current database to the
<code class="leafygreen-ui-1l06pbn">
temp
</code>
database and then uses the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-db.dropDatabase" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
db.dropDatabase()
</code>
</span>
</a>
method to drop
the
<code class="leafygreen-ui-1l06pbn">
temp
</code>
database:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"use temp\ndb.dropDatabase()","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">use temp</td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">dropDatabase</span>(<!-- -->)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/dropDatabase/#mongodb-dbcommand-dbcmd.dropDatabase">
<code class="leafygreen-ui-1l06pbn">
dropDatabase
</code>
</a>
</p>
</div>
</div>
</section>
</section>
|
https://www.mongodb.com/docs/manual/tutorial/remove-documents/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Delete Documents
<a class="headerlink leafygreen-ui-1kepx47" href="#delete-documents" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="delete-documents">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#delete-all-documents" target="_self">
<span>
Delete All Documents
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#delete-all-documents-that-match-a-condition" target="_self">
<span>
Delete All Documents that Match a Condition
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#delete-only-one-document-that-matches-a-condition" target="_self">
<span>
Delete Only One Document that Matches a Condition
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#delete-a-document-with-mongodb-atlas" target="_self">
<span>
Delete a Document with MongoDB Atlas
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#delete-behavior" target="_self">
<span>
Delete Behavior
</span>
</a>
</li>
</ul>
</div>
<p class="leafygreen-ui-1kp3ins">
You can delete documents in MongoDB using the following methods:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Your programming language's driver.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/" target="_self">
<span>
MongoDB Atlas UI
</span>
</a>
. To learn more, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-delete-documents-atlas-ui" target="_self">
<span>
Delete a Document with MongoDB Atlas
</span>
</a>
.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/compass/current/" target="_self">
<span>
MongoDB Compass
<!-- -->
.
</span>
</a>
</p>
</li>
</ul>
<hr class="css-1unva0n e4ru7ww0"/>
<p class="leafygreen-ui-1kp3ins">
➤
<!-- -->
Use the
<strong>
Select your language
</strong>
drop-down menu in the
upper-right to set the language of the following examples or select
MongoDB Compass.
</p>
<hr class="css-1unva0n e4ru7ww0"/>
<div aria-hidden="true">
</div>
<div class="leafygreen-ui-f2qztv" data-lgid="lg-tabs">
<div class="leafygreen-ui-jp7pox" id="tabs-4">
<div aria-label="Tabs to describe usage of drivers" aria-orientation="horizontal" class="leafygreen-ui-m8p1vb lg-ui-tab-list-0000" data-lgid="lg-tabs-tab_list" role="tablist">
<button aria-controls="_jx2yhej2k" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_p00mkmku9" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
MongoDB Shell
</div>
</button>
<button aria-controls="_oomdhhnbn" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_3de23rfrk" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Compass
</div>
</button>
<button aria-controls="_14ekafw66" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_w8pqpawuu" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
C
</div>
</button>
<button aria-controls="_l87wj37wt" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_72wd56fig" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
C#
</div>
</button>
<button aria-controls="_vgnmhwhbp" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_90w8fdbdn" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Go
</div>
</button>
<button aria-controls="_38jf0t9ir" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_sxzwv7vbx" name="" role="tab" tabindex="-1">
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Java (Async)
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</button>
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Java (Sync)
</div>
</button>
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<div class="leafygreen-ui-1nxuzmg">
Kotlin (Coroutine)
</div>
</button>
<button aria-controls="_r6xyqlapc" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_1q696py3n" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Motor
</div>
</button>
<button aria-controls="_fb1fk55b6" aria-selected="true" class="leafygreen-ui-1l773z1" data-text="" id="_i5me6t6jn" name="" role="tab" tabindex="0">
<div class="leafygreen-ui-1nxuzmg">
Node.js
</div>
</button>
<button aria-controls="_n606p2bx0" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_avpebewen" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Perl
</div>
</button>
<button aria-controls="_ol808gjtl" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_ibysr3vpv" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
PHP
</div>
</button>
<button aria-controls="_ioi94tttn" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_pgf0nc8ih" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Python
</div>
</button>
<button aria-controls="_kr65b07ml" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_6d4oqvhqi" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Ruby
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</button>
<button aria-controls="_pgy3us01n" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_2jdpa52ec" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Scala
</div>
</button>
</div>
<div class="leafygreen-ui-ov1ktg">
<div class="leafygreen-ui-1sg2lsz">
</div>
</div>
</div>
<div class="lg-ui-tab-panels-0000" data-lgid="lg-tabs-tab_panels">
<div>
<div aria-labelledby="_6cum3wh0j" class="leafygreen-ui-38lglc" id="_v8k7s2gjf" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
This page uses the following
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
methods:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.deleteMany/#mongodb-method-db.collection.deleteMany">
<code class="leafygreen-ui-1l06pbn">
db.collection.deleteMany()
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.deleteOne/#mongodb-method-db.collection.deleteOne">
<code class="leafygreen-ui-1l06pbn">
db.collection.deleteOne()
</code>
</a>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
The examples on this page use the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection. To populate
the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection, run the following:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_5ezuf3ifw" class="leafygreen-ui-38lglc" id="_b22mryqau" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
This page uses
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/compass/current/#std-label-compass-index" target="_self">
<span>
MongoDB Compass
</span>
</a>
to
delete the documents.
</p>
<p class="leafygreen-ui-1kp3ins">
Populate the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection with the following
documents:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_utnhkn3sw" class="leafygreen-ui-38lglc" id="_nz8g25kwj" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
This page uses the following
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongoc.org/libmongoc/current/index.html" rel="noopener noreferrer">
<span>
MongoDB C Driver
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
methods:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongoc.org/libmongoc/current/mongoc_collection_delete_one.html" rel="noopener noreferrer">
<span>
mongoc_collection_delete_one
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongoc.org/libmongoc/current/mongoc_collection_delete_many.html" rel="noopener noreferrer">
<span>
mongoc_collection_delete_many
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
The examples on this page use the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection. Connect to a
test database in your MongoDB instance then create the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_nqb5foihc" class="leafygreen-ui-38lglc" id="_zbnwuo71t" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
This page uses the
following
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/drivers/csharp/" target="_self">
<span>
MongoDB C# Driver
</span>
</a>
methods:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-csharp-driver/2.10/apidocs/html/M_MongoDB_Driver_IMongoCollection_1_DeleteMany.htm" rel="noopener noreferrer">
<span>
IMongoCollection.DeleteMany()
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-csharp-driver/2.10/apidocs/html/M_MongoDB_Driver_IMongoCollection_1_DeleteOne.htm" rel="noopener noreferrer">
<span>
IMongoCollection.DeleteOne()
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
The examples on this page use the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection. Connect to a
test database in your MongoDB instance then create the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_gfqgymj5m" class="leafygreen-ui-38lglc" id="_80ch5zyeh" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
This page uses the
following
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/drivers/go/" target="_self">
<span>
MongoDB Go Driver
</span>
</a>
functions:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://godoc.org/github.com/mongodb/mongo-go-driver/mongo#Collection.DeleteMany" rel="noopener noreferrer">
<span>
Collection.DeleteMany
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://godoc.org/github.com/mongodb/mongo-go-driver/mongo#Collection.DeleteOne" rel="noopener noreferrer">
<span>
Collection.DeleteOne
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
The examples on this page use the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection. Connect to a
test database in your MongoDB instance then create the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_zt3cj3x0i" class="leafygreen-ui-38lglc" id="_liekfuyqd" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
This page uses the
following
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://mongodb.github.io/mongo-java-driver-reactivestreams/1.6/" rel="noopener noreferrer">
<span>
Java Reactive Streams Driver
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
methods:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://mongodb.github.io/mongo-java-driver-reactivestreams/1.6/javadoc/com/mongodb/reactivestreams/client/MongoCollection.html#deleteMany(org.bson.conversions.Bson)" rel="noopener noreferrer">
<span>
com.mongodb.reactivestreams.client.MongoCollection.deleteMany
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://mongodb.github.io/mongo-java-driver-reactivestreams/1.6/javadoc/com/mongodb/reactivestreams/client/MongoCollection.html#deleteOne(org.bson.conversions.Bson)" rel="noopener noreferrer">
<span>
com.mongodb.reactivestreams.client.MongoCollection.deleteOne
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
The examples on this page use the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection. Connect to a
test database in your MongoDB instance then create the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_1fbmiqk12" class="leafygreen-ui-38lglc" id="_ml1r21kjn" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
This page uses the
following
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://mongodb.github.io/mongo-java-driver/3.4/driver/" rel="noopener noreferrer">
<span>
Java Synchronous Driver
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
methods:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/MongoCollection.html#deleteMany-org.bson.conversions.Bson-" rel="noopener noreferrer">
<span>
com.mongodb.client.MongoCollection.deleteMany
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/MongoCollection.html#deleteOne-org.bson.conversions.Bson-" rel="noopener noreferrer">
<span>
com.mongodb.client.MongoCollection.deleteOne
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
The examples on this page use the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection. Connect to a
test database in your MongoDB instance then create the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_f0g03ucbr" class="leafygreen-ui-38lglc" id="_ze7e3f8f9" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
This page uses the
following
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/drivers/kotlin/coroutine/current/" target="_self">
<span>
Kotlin Coroutine Driver
</span>
</a>
methods:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/4.11/apidocs/mongodb-driver-kotlin-coroutine/mongodb-driver-kotlin-coroutine/com.mongodb.kotlin.client.coroutine/-mongo-collection/delete-one.html" rel="noopener noreferrer">
<span>
MongoCollection.deleteOne()
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/4.11/apidocs/mongodb-driver-kotlin-coroutine/mongodb-driver-kotlin-coroutine/com.mongodb.kotlin.client.coroutine/-mongo-collection/delete-many.html" rel="noopener noreferrer">
<span>
MongoCollection.deleteMany()
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
The examples on this page use the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection. Connect to a
test database in your MongoDB instance then create the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_tvjiahdvf" class="leafygreen-ui-38lglc" id="_fxa57quwp" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
This page uses the
following
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://motor.readthedocs.io/en/stable/" rel="noopener noreferrer">
<span>
Motor
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
driver methods:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://motor.readthedocs.io/en/stable/api-asyncio/asyncio_motor_collection.html#motor.motor_asyncio.AsyncIOMotorCollection.delete_many" rel="noopener noreferrer">
<span>
<code class="leafygreen-ui-1l06pbn">
motor.motor_asyncio.AsyncIOMotorCollection.delete_many
</code>
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://motor.readthedocs.io/en/stable/api-asyncio/asyncio_motor_collection.html#motor.motor_asyncio.AsyncIOMotorCollection.delete_one" rel="noopener noreferrer">
<span>
<code class="leafygreen-ui-1l06pbn">
motor.motor_asyncio.AsyncIOMotorCollection.delete_one
</code>
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
The examples on this page use the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection. Connect to a
test database in your MongoDB instance then create the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_s4p3kx083" class="" id="_uv1npmadz" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
This page uses the
following
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://mongodb.github.io/node-mongodb-native/3.6/" rel="noopener noreferrer">
<span>
MongoDB Node.js Driver
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
methods:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://mongodb.github.io/node-mongodb-native/3.6/api/Collection.html#deleteMany" rel="noopener noreferrer">
<span>
Collection.deleteMany()
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://mongodb.github.io/node-mongodb-native/3.6/api/Collection.html#deleteOne" rel="noopener noreferrer">
<span>
Collection.deleteOne()
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
The examples on this page use the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection. Connect to a
test database in your MongoDB instance then create the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_aejpcpvh5" class="leafygreen-ui-38lglc" id="_ovygo0jfj" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
This page uses the
following
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://metacpan.org/release/MongoDB" rel="noopener noreferrer">
<span>
MongoDB Perl Driver
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
methods:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://metacpan.org/pod/MongoDB::Collection#delete_many" rel="noopener noreferrer">
<span>
MongoDB::Collection::delete_many()
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://metacpan.org/pod/MongoDB::Collection#delete_one" rel="noopener noreferrer">
<span>
MongoDB::Collection::delete_one()
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
The examples on this page use the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection. Connect to a
test database in your MongoDB instance then create the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_czewlsrtu" class="leafygreen-ui-38lglc" id="_9hxdfop9g" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
This page uses the
following
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/php-library/current/" target="_self">
<span>
MongoDB PHP Library
</span>
</a>
methods:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/php-library/upcoming/reference/method/MongoDBCollection-deleteMany/#mongodb-phpmethod-phpmethod.MongoDB-Collection--deleteMany--" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
MongoDB\\Collection::deleteMany()
</code>
</span>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/php-library/upcoming/reference/method/MongoDBCollection-deleteOne/#mongodb-phpmethod-phpmethod.MongoDB-Collection--deleteOne--" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
MongoDB\\Collection::deleteOne()
</code>
</span>
</a>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
The examples on this page use the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection. Connect to a
test database in your MongoDB instance then create the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_u24nq9lag" class="leafygreen-ui-38lglc" id="_cpjjqhg5j" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
This page uses the following
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://pymongo.readthedocs.io/en/stable/index.html" rel="noopener noreferrer">
<span>
PyMongo
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
Python driver methods:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://pymongo.readthedocs.io/en/stable/api/pymongo/collection.html#pymongo.collection.Collection.delete_many" rel="noopener noreferrer">
<span>
<code class="leafygreen-ui-1l06pbn">
pymongo.collection.Collection.delete_many
</code>
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://pymongo.readthedocs.io/en/stable/api/pymongo/collection.html#pymongo.collection.Collection.delete_one" rel="noopener noreferrer">
<span>
<code class="leafygreen-ui-1l06pbn">
pymongo.collection.Collection.delete_one
</code>
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
The examples on this page use the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection. Connect to a
test database in your MongoDB instance then create the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_z9bghl671" class="leafygreen-ui-38lglc" id="_tw1585txj" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
This page uses the
following
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/ruby-driver/current/" target="_self">
<span>
MongoDB Ruby Driver
</span>
</a>
methods:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://api.mongodb.com/ruby/current/Mongo/Collection.html#delete_many-instance_method" target="_self">
<span>
Mongo::Collection#delete_many()
</span>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://api.mongodb.com/ruby/current/Mongo/Collection.html#delete_one-instance_method" target="_self">
<span>
Mongo::Collection#delete_one()
</span>
</a>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
The examples on this page use the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection. Connect to a
test database in your MongoDB instance then create the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_y1xzdbivo" class="leafygreen-ui-38lglc" id="_1lubn5imh" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
This page uses the
following
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://mongodb.github.io/mongo-scala-driver/" rel="noopener noreferrer">
<span>
MongoDB Scala Driver
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
methods:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://mongodb.github.io/mongo-scala-driver/2.9/scaladoc/org/mongodb/scala/MongoCollection.html#deleteMany(filter:org.mongodb.scala.bson.conversions.Bson,options:org.mongodb.scala.model.DeleteOptions):org.mongodb.scala.SingleObservable[org.mongodb.scala.result.DeleteResult]" rel="noopener noreferrer">
<span>
collection.deleteMany()
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://mongodb.github.io/mongo-scala-driver/2.9/scaladoc/org/mongodb/scala/MongoCollection.html#deleteOne(filter:org.mongodb.scala.bson.conversions.Bson,options:org.mongodb.scala.model.DeleteOptions):org.mongodb.scala.SingleObservable[org.mongodb.scala.result.DeleteResult]" rel="noopener noreferrer">
<span>
collection.deleteOne()
</span>
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</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
The examples on this page use the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection. Connect to a
test database in your MongoDB instance then create the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection:
</p>
</div>
</div>
</div>
</div>
</div>
<div aria-hidden="true">
</div>
<div class="leafygreen-ui-f2qztv" data-lgid="lg-tabs">
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MongoDB Shell
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C#
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Java (Async)
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Java (Sync)
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Kotlin (Coroutine)
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<div class="leafygreen-ui-1nxuzmg">
Motor
</div>
</button>
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Perl
</div>
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PHP
</div>
</button>
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Python
</div>
</button>
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Ruby
</div>
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Scala
</div>
</button>
</div>
<div class="leafygreen-ui-ov1ktg">
<div class="leafygreen-ui-1sg2lsz">
</div>
</div>
</div>
<div class="lg-ui-tab-panels-0000" data-lgid="lg-tabs-tab_panels">
<div>
<div aria-labelledby="_m60mtx6xi" class="leafygreen-ui-38lglc" id="_q978gl8zq" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.inventory.insertMany( [\n { item: \"journal\", qty: 25, size: { h: 14, w: 21, uom: \"cm\" }, status: \"A\" },\n { item: \"notebook\", qty: 50, size: { h: 8.5, w: 11, uom: \"in\" }, status: \"P\" },\n { item: \"paper\", qty: 100, size: { h: 8.5, w: 11, uom: \"in\" }, status: \"D\" },\n { item: \"planner\", qty: 75, size: { h: 22.85, w: 30, uom: \"cm\" }, status: \"D\" },\n { item: \"postcard\", qty: 45, size: { h: 10, w: 15.25, uom: \"cm\" }, status: \"A\" },\n] );","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">inventory</span>.<span class="lg-highlight-title lg-highlight-function">insertMany</span>( <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">item</span>: <span class="lg-highlight-string">"journal"</span>, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">25</span>, <span class="lg-highlight-attr">size</span>: <!-- -->{ <span class="lg-highlight-attr">h</span>: <span class="lg-highlight-number">14</span>, <span class="lg-highlight-attr">w</span>: <span class="lg-highlight-number">21</span>, <span class="lg-highlight-attr">uom</span>: <span class="lg-highlight-string">"cm"</span> }<!-- -->, <span class="lg-highlight-attr">status</span>: <span class="lg-highlight-string">"A"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">item</span>: <span class="lg-highlight-string">"notebook"</span>, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">50</span>, <span class="lg-highlight-attr">size</span>: <!-- -->{ <span class="lg-highlight-attr">h</span>: <span class="lg-highlight-number">8.5</span>, <span class="lg-highlight-attr">w</span>: <span class="lg-highlight-number">11</span>, <span class="lg-highlight-attr">uom</span>: <span class="lg-highlight-string">"in"</span> }<!-- -->, <span class="lg-highlight-attr">status</span>: <span class="lg-highlight-string">"P"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">item</span>: <span class="lg-highlight-string">"paper"</span>, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">100</span>, <span class="lg-highlight-attr">size</span>: <!-- -->{ <span class="lg-highlight-attr">h</span>: <span class="lg-highlight-number">8.5</span>, <span class="lg-highlight-attr">w</span>: <span class="lg-highlight-number">11</span>, <span class="lg-highlight-attr">uom</span>: <span class="lg-highlight-string">"in"</span> }<!-- -->, <span class="lg-highlight-attr">status</span>: <span class="lg-highlight-string">"D"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">item</span>: <span class="lg-highlight-string">"planner"</span>, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">75</span>, <span class="lg-highlight-attr">size</span>: <!-- -->{ <span class="lg-highlight-attr">h</span>: <span class="lg-highlight-number">22.85</span>, <span class="lg-highlight-attr">w</span>: <span class="lg-highlight-number">30</span>, <span class="lg-highlight-attr">uom</span>: <span class="lg-highlight-string">"cm"</span> }<!-- -->, <span class="lg-highlight-attr">status</span>: <span class="lg-highlight-string">"D"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">item</span>: <span class="lg-highlight-string">"postcard"</span>, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">45</span>, <span class="lg-highlight-attr">size</span>: <!-- -->{ <span class="lg-highlight-attr">h</span>: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-attr">w</span>: <span class="lg-highlight-number">15.25</span>, <span class="lg-highlight-attr">uom</span>: <span class="lg-highlight-string">"cm"</span> }<!-- -->, <span class="lg-highlight-attr">status</span>: <span class="lg-highlight-string">"A"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx">] )<!-- -->;</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"item"</span>: <span class="lg-highlight-string">"journal"</span>, <span class="lg-highlight-string">"qty"</span>: <span class="lg-highlight-number">25</span>, <span class="lg-highlight-string">"size"</span>: <!-- -->{ <span class="lg-highlight-string">"h"</span>: <span class="lg-highlight-number">14</span>, <span class="lg-highlight-string">"w"</span>: <span class="lg-highlight-number">21</span>, <span class="lg-highlight-string">"uom"</span>: <span class="lg-highlight-string">"cm"</span> }<!-- -->, <span class="lg-highlight-string">"status"</span>: <span class="lg-highlight-string">"A"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"item"</span>: <span class="lg-highlight-string">"notebook"</span>, <span class="lg-highlight-string">"qty"</span>: <span class="lg-highlight-number">50</span>, <span class="lg-highlight-string">"size"</span>: <!-- -->{ <span class="lg-highlight-string">"h"</span>: <span class="lg-highlight-number">8.5</span>, <span class="lg-highlight-string">"w"</span>: <span class="lg-highlight-number">11</span>, <span class="lg-highlight-string">"uom"</span>: <span class="lg-highlight-string">"in"</span> }<!-- -->, <span class="lg-highlight-string">"status"</span>: <span class="lg-highlight-string">"P"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"item"</span>: <span class="lg-highlight-string">"paper"</span>, <span class="lg-highlight-string">"qty"</span>: <span class="lg-highlight-number">100</span>, <span class="lg-highlight-string">"size"</span>: <!-- -->{ <span class="lg-highlight-string">"h"</span>: <span class="lg-highlight-number">8.5</span>, <span class="lg-highlight-string">"w"</span>: <span class="lg-highlight-number">11</span>, <span class="lg-highlight-string">"uom"</span>: <span class="lg-highlight-string">"in"</span> }<!-- -->, <span class="lg-highlight-string">"status"</span>: <span class="lg-highlight-string">"D"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"item"</span>: <span class="lg-highlight-string">"planner"</span>, <span class="lg-highlight-string">"qty"</span>: <span class="lg-highlight-number">75</span>, <span class="lg-highlight-string">"size"</span>: <!-- -->{ <span class="lg-highlight-string">"h"</span>: <span class="lg-highlight-number">22.85</span>, <span class="lg-highlight-string">"w"</span>: <span class="lg-highlight-number">30</span>, <span class="lg-highlight-string">"uom"</span>: <span class="lg-highlight-string">"cm"</span> }<!-- -->, <span class="lg-highlight-string">"status"</span>: <span class="lg-highlight-string">"D"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"item"</span>: <span class="lg-highlight-string">"postcard"</span>, <span class="lg-highlight-string">"qty"</span>: <span class="lg-highlight-number">45</span>, <span class="lg-highlight-string">"size"</span>: <!-- -->{ <span class="lg-highlight-string">"h"</span>: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-string">"w"</span>: <span class="lg-highlight-number">15.25</span>, <span class="lg-highlight-string">"uom"</span>: <span class="lg-highlight-string">"cm"</span> }<!-- -->, <span class="lg-highlight-string">"status"</span>: <span class="lg-highlight-string">"A"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">]</td></tr></tbody></table></code></pre>
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For instructions on inserting documents in MongoDB Compass, see
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Insert Documents
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Note
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For complete reference on inserting documents in MongoDB
Compass, see the
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Compass documentation
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{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"mongoc_collection_t *collection;\nmongoc_bulk_operation_t *bulk;\nbson_t *doc;\nbool r;\nbson_error_t error;\nbson_t reply;\n\ncollection = mongoc_database_get_collection (db, \"inventory\");\nbulk = mongoc_collection_create_bulk_operation_with_opts (collection, NULL);\ndoc = BCON_NEW (\n \"item\", BCON_UTF8 (\"journal\"),\n \"qty\", BCON_INT64 (25),\n \"size\", \"{\",\n \"h\", BCON_DOUBLE (14),\n \"w\", BCON_DOUBLE (21),\n \"uom\", BCON_UTF8 (\"cm\"),\n \"}\",\n \"status\", BCON_UTF8 (\"A\"));\n\nr = mongoc_bulk_operation_insert_with_opts (bulk, doc, NULL, &error);\nbson_destroy (doc);\nif (!r) {\n MONGOC_ERROR (\"%s\\n\", error.message);\n goto done;\n}\n\ndoc = BCON_NEW (\n \"item\", BCON_UTF8 (\"notebook\"),\n \"qty\", BCON_INT64 (50),\n \"size\", \"{\",\n \"h\", BCON_DOUBLE (8.5),\n \"w\", BCON_DOUBLE (11),\n \"uom\", BCON_UTF8 (\"in\"),\n \"}\",\n \"status\", BCON_UTF8 (\"P\"));\n\nr = mongoc_bulk_operation_insert_with_opts (bulk, doc, NULL, &error);\nbson_destroy (doc);\nif (!r) {\n MONGOC_ERROR (\"%s\\n\", error.message);\n goto done;\n}\n\ndoc = BCON_NEW (\n \"item\", BCON_UTF8 (\"paper\"),\n \"qty\", BCON_INT64 (100),\n \"size\", \"{\",\n \"h\", BCON_DOUBLE (8.5),\n \"w\", BCON_DOUBLE (11),\n \"uom\", BCON_UTF8 (\"in\"),\n \"}\",\n \"status\", BCON_UTF8 (\"D\"));\n\nr = mongoc_bulk_operation_insert_with_opts (bulk, doc, NULL, &error);\nbson_destroy (doc);\nif (!r) {\n MONGOC_ERROR (\"%s\\n\", error.message);\n goto done;\n}\n\ndoc = BCON_NEW (\n \"item\", BCON_UTF8 (\"planner\"),\n \"qty\", BCON_INT64 (75),\n \"size\", \"{\",\n \"h\", BCON_DOUBLE (22.85),\n \"w\", BCON_DOUBLE (30),\n \"uom\", BCON_UTF8 (\"cm\"),\n \"}\",\n \"status\", BCON_UTF8 (\"D\"));\n\nr = mongoc_bulk_operation_insert_with_opts (bulk, doc, NULL, &error);\nbson_destroy (doc);\nif (!r) {\n MONGOC_ERROR (\"%s\\n\", error.message);\n goto done;\n}\n\ndoc = BCON_NEW (\n \"item\", BCON_UTF8 (\"postcard\"),\n \"qty\", BCON_INT64 (45),\n \"size\", \"{\",\n \"h\", BCON_DOUBLE (10),\n \"w\", BCON_DOUBLE (15.25),\n \"uom\", BCON_UTF8 (\"cm\"),\n \"}\",\n \"status\", BCON_UTF8 (\"A\"));\n\nr = mongoc_bulk_operation_insert_with_opts (bulk, doc, NULL, &error);\nbson_destroy (doc);\nif (!r) {\n MONGOC_ERROR (\"%s\\n\", error.message);\n goto done;\n}\n\n/* \"reply\" is initialized on success or error */\nr = (bool) mongoc_bulk_operation_execute (bulk, &reply, &error);\nif (!r) {\n MONGOC_ERROR (\"%s\\n\", error.message);\n}","programmingLanguage":"C"}
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">mongoc_collection_t *collection;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">mongoc_bulk_operation_t *bulk;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">bson_t *doc;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">bool r;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">bson_error_t error;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">bson_t reply;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">collection <!-- -->= <!-- -->mongoc_database_get_collection (db<!-- -->, <span class="lg-highlight-string">"inventory"</span>);</td></tr><tr class=""><td class="leafygreen-ui-7razhx">bulk <!-- -->= <!-- -->mongoc_collection_create_bulk_operation_with_opts (collection<!-- -->, <span class="lg-highlight-variable lg-highlight-constant">NULL</span>);</td></tr><tr class=""><td class="leafygreen-ui-7razhx">doc <!-- -->= <!-- --><span class="lg-highlight-variable lg-highlight-constant">BCON_NEW</span> (</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"item"</span>, <!-- --><span class="lg-highlight-variable lg-highlight-constant">BCON_UTF8</span> (<!-- --><span class="lg-highlight-string">"journal"</span>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"qty"</span>, <!-- --><span class="lg-highlight-variable lg-highlight-constant">BCON_INT64</span> (<!-- --><span class="lg-highlight-number">25</span>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"size"</span>, <span class="lg-highlight-string">"{"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"h"</span>, <!-- --><span class="lg-highlight-variable lg-highlight-constant">BCON_DOUBLE</span> (<!-- --><span class="lg-highlight-number">14</span>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"w"</span>, <!-- --><span class="lg-highlight-variable lg-highlight-constant">BCON_DOUBLE</span> (<!-- --><span class="lg-highlight-number">21</span>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"uom"</span>, <!-- --><span class="lg-highlight-variable lg-highlight-constant">BCON_UTF8</span> (<!-- --><span class="lg-highlight-string">"cm"</span>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"}"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"status"</span>, <!-- --><span class="lg-highlight-variable lg-highlight-constant">BCON_UTF8</span> (<!-- --><!-- --><span class="lg-highlight-string">"A"</span>));</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">r <!-- -->= <!-- -->mongoc_bulk_operation_insert_with_opts (bulk<!-- -->, doc, <span class="lg-highlight-variable lg-highlight-constant">NULL</span>, &error);</td></tr><tr class=""><td class="leafygreen-ui-7razhx">bson_destroy <!-- -->(<!-- -->doc);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">if</span> <!-- -->(<!-- -->!r) {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- --><span class="lg-highlight-variable lg-highlight-constant">MONGOC_ERROR</span> (<span class="lg-highlight-string">"%s</span><!-- --><span class="lg-highlight-string">\n</span><span class="lg-highlight-string">"</span>, error.<span class="lg-highlight-property">message</span>);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> goto done;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">doc <!-- -->= <!-- --><span class="lg-highlight-variable lg-highlight-constant">BCON_NEW</span> (</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"item"</span>, <!-- --><span class="lg-highlight-variable lg-highlight-constant">BCON_UTF8</span> (<!-- --><span class="lg-highlight-string">"notebook"</span>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"qty"</span>, <!-- --><span class="lg-highlight-variable lg-highlight-constant">BCON_INT64</span> (<!-- --><span class="lg-highlight-number">50</span>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"size"</span>, <span class="lg-highlight-string">"{"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"h"</span>, <!-- --><span class="lg-highlight-variable lg-highlight-constant">BCON_DOUBLE</span> (<!-- --><span class="lg-highlight-number">8.5</span>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"w"</span>, <!-- --><span class="lg-highlight-variable lg-highlight-constant">BCON_DOUBLE</span> (<!-- --><span class="lg-highlight-number">11</span>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"uom"</span>, <!-- --><span class="lg-highlight-variable lg-highlight-constant">BCON_UTF8</span> (<!-- --><span class="lg-highlight-string">"in"</span>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"}"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"status"</span>, <!-- --><span class="lg-highlight-variable lg-highlight-constant">BCON_UTF8</span> (<!-- --><!-- --><span class="lg-highlight-string">"P"</span>));</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">r <!-- -->= <!-- -->mongoc_bulk_operation_insert_with_opts (bulk<!-- -->, doc, <span class="lg-highlight-variable lg-highlight-constant">NULL</span>, &error);</td></tr><tr class=""><td class="leafygreen-ui-7razhx">bson_destroy <!-- -->(<!-- -->doc);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">if</span> <!-- -->(<!-- -->!r) {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- --><span class="lg-highlight-variable lg-highlight-constant">MONGOC_ERROR</span> (<span class="lg-highlight-string">"%s</span><!-- --><span class="lg-highlight-string">\n</span><span class="lg-highlight-string">"</span>, error.<span class="lg-highlight-property">message</span>);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> goto done;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">doc <!-- -->= <!-- --><span class="lg-highlight-variable lg-highlight-constant">BCON_NEW</span> (</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"item"</span>, <!-- --><span class="lg-highlight-variable lg-highlight-constant">BCON_UTF8</span> (<!-- --><span class="lg-highlight-string">"paper"</span>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"qty"</span>, <!-- --><span class="lg-highlight-variable lg-highlight-constant">BCON_INT64</span> (<!-- --><span class="lg-highlight-number">100</span>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"size"</span>, <span class="lg-highlight-string">"{"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"h"</span>, <!-- --><span class="lg-highlight-variable lg-highlight-constant">BCON_DOUBLE</span> (<!-- --><span class="lg-highlight-number">8.5</span>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"w"</span>, <!-- --><span class="lg-highlight-variable lg-highlight-constant">BCON_DOUBLE</span> (<!-- --><span class="lg-highlight-number">11</span>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"uom"</span>, <!-- --><span class="lg-highlight-variable lg-highlight-constant">BCON_UTF8</span> (<!-- --><span class="lg-highlight-string">"in"</span>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"}"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"status"</span>, <!-- --><span class="lg-highlight-variable lg-highlight-constant">BCON_UTF8</span> (<!-- --><!-- --><span class="lg-highlight-string">"D"</span>));</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">r <!-- -->= <!-- -->mongoc_bulk_operation_insert_with_opts (bulk<!-- -->, doc, <span class="lg-highlight-variable lg-highlight-constant">NULL</span>, &error);</td></tr><tr class=""><td class="leafygreen-ui-7razhx">bson_destroy <!-- -->(<!-- -->doc);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">if</span> <!-- -->(<!-- -->!r) {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- --><span class="lg-highlight-variable lg-highlight-constant">MONGOC_ERROR</span> (<span class="lg-highlight-string">"%s</span><!-- --><span class="lg-highlight-string">\n</span><span class="lg-highlight-string">"</span>, error.<span class="lg-highlight-property">message</span>);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> goto done;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">doc <!-- -->= <!-- --><span class="lg-highlight-variable lg-highlight-constant">BCON_NEW</span> (</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"item"</span>, <!-- --><span class="lg-highlight-variable lg-highlight-constant">BCON_UTF8</span> (<!-- --><span class="lg-highlight-string">"planner"</span>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"qty"</span>, <!-- --><span class="lg-highlight-variable lg-highlight-constant">BCON_INT64</span> (<!-- --><span class="lg-highlight-number">75</span>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"size"</span>, <span class="lg-highlight-string">"{"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"h"</span>, <!-- --><span class="lg-highlight-variable lg-highlight-constant">BCON_DOUBLE</span> (<!-- --><span class="lg-highlight-number">22.85</span>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"w"</span>, <!-- --><span class="lg-highlight-variable lg-highlight-constant">BCON_DOUBLE</span> (<!-- --><span class="lg-highlight-number">30</span>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"uom"</span>, <!-- --><span class="lg-highlight-variable lg-highlight-constant">BCON_UTF8</span> (<!-- --><span class="lg-highlight-string">"cm"</span>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"}"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"status"</span>, <!-- --><span class="lg-highlight-variable lg-highlight-constant">BCON_UTF8</span> (<!-- --><!-- --><span class="lg-highlight-string">"D"</span>));</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">r <!-- -->= <!-- -->mongoc_bulk_operation_insert_with_opts (bulk<!-- -->, doc, <span class="lg-highlight-variable lg-highlight-constant">NULL</span>, &error);</td></tr><tr class=""><td class="leafygreen-ui-7razhx">bson_destroy <!-- -->(<!-- -->doc);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">if</span> <!-- -->(<!-- -->!r) {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- --><span class="lg-highlight-variable lg-highlight-constant">MONGOC_ERROR</span> (<span class="lg-highlight-string">"%s</span><!-- --><span class="lg-highlight-string">\n</span><span class="lg-highlight-string">"</span>, error.<span class="lg-highlight-property">message</span>);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> goto done;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">doc <!-- -->= <!-- --><span class="lg-highlight-variable lg-highlight-constant">BCON_NEW</span> (</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"item"</span>, <!-- --><span class="lg-highlight-variable lg-highlight-constant">BCON_UTF8</span> (<!-- --><span class="lg-highlight-string">"postcard"</span>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"qty"</span>, <!-- --><span class="lg-highlight-variable lg-highlight-constant">BCON_INT64</span> (<!-- --><span class="lg-highlight-number">45</span>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"size"</span>, <span class="lg-highlight-string">"{"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"h"</span>, <!-- --><span class="lg-highlight-variable lg-highlight-constant">BCON_DOUBLE</span> (<!-- --><span class="lg-highlight-number">10</span>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"w"</span>, <!-- --><span class="lg-highlight-variable lg-highlight-constant">BCON_DOUBLE</span> (<!-- --><span class="lg-highlight-number">15.25</span>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"uom"</span>, <!-- --><span class="lg-highlight-variable lg-highlight-constant">BCON_UTF8</span> (<!-- --><span class="lg-highlight-string">"cm"</span>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"}"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"status"</span>, <!-- --><span class="lg-highlight-variable lg-highlight-constant">BCON_UTF8</span> (<!-- --><!-- --><span class="lg-highlight-string">"A"</span>));</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">r <!-- -->= <!-- -->mongoc_bulk_operation_insert_with_opts (bulk<!-- -->, doc, <span class="lg-highlight-variable lg-highlight-constant">NULL</span>, &error);</td></tr><tr class=""><td class="leafygreen-ui-7razhx">bson_destroy <!-- -->(<!-- -->doc);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">if</span> <!-- -->(<!-- -->!r) {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- --><span class="lg-highlight-variable lg-highlight-constant">MONGOC_ERROR</span> (<span class="lg-highlight-string">"%s</span><!-- --><span class="lg-highlight-string">\n</span><span class="lg-highlight-string">"</span>, error.<span class="lg-highlight-property">message</span>);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> goto done;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-comment">/* "reply"</span><span class="lg-highlight-comment"> is initialized on </span><span class="lg-highlight-comment">success or error */</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">r <!-- -->= <!-- -->(bool) mongoc_bulk_operation_execute (<!-- -->bulk<!-- -->, <!-- -->&reply, &error);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">if</span> <!-- -->(<!-- -->!r) {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- --><span class="lg-highlight-variable lg-highlight-constant">MONGOC_ERROR</span> (<span class="lg-highlight-string">"%s</span><!-- --><span class="lg-highlight-string">\n</span><span class="lg-highlight-string">"</span>, error.<span class="lg-highlight-property">message</span>);</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-61-menu" aria-describedby="select-61-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-62" type="button" value="Node.js">
<div class="leafygreen-ui-v038xi">
</div>
<div class="leafygreen-ui-16tr4y">
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> documents = <span class="lg-highlight-keyword">new</span>[]</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">BsonDocument</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { <span class="lg-highlight-string">"item"</span>, <span class="lg-highlight-string">"journal"</span> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { <span class="lg-highlight-string">"qty"</span>, <span class="lg-highlight-number">25</span> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { <span class="lg-highlight-string">"size"</span>, <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">BsonDocument</span> { { <span class="lg-highlight-string">"h"</span>, <span class="lg-highlight-number">14</span> }, { <span class="lg-highlight-string">"w"</span>, <span class="lg-highlight-number">21</span> }, { <span class="lg-highlight-string">"uom"</span>, <span class="lg-highlight-string">"cm"</span> } } },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { <span class="lg-highlight-string">"status"</span>, <span class="lg-highlight-string">"A"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">BsonDocument</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { <span class="lg-highlight-string">"item"</span>, <span class="lg-highlight-string">"notebook"</span> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { <span class="lg-highlight-string">"qty"</span>, <span class="lg-highlight-number">50</span> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { <span class="lg-highlight-string">"size"</span>, <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">BsonDocument</span> { { <span class="lg-highlight-string">"h"</span>, <span class="lg-highlight-number">8.5</span> }, { <span class="lg-highlight-string">"w"</span>, <span class="lg-highlight-number">11</span> }, { <span class="lg-highlight-string">"uom"</span>, <span class="lg-highlight-string">"in"</span> } } },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { <span class="lg-highlight-string">"status"</span>, <span class="lg-highlight-string">"P"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">BsonDocument</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { <span class="lg-highlight-string">"item"</span>, <span class="lg-highlight-string">"paper"</span> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { <span class="lg-highlight-string">"qty"</span>, <span class="lg-highlight-number">100</span> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { <span class="lg-highlight-string">"size"</span>, <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">BsonDocument</span> { { <span class="lg-highlight-string">"h"</span>, <span class="lg-highlight-number">8.5</span> }, { <span class="lg-highlight-string">"w"</span>, <span class="lg-highlight-number">11</span> }, { <span class="lg-highlight-string">"uom"</span>, <span class="lg-highlight-string">"in"</span> } } },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { <span class="lg-highlight-string">"status"</span>, <span class="lg-highlight-string">"D"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">BsonDocument</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { <span class="lg-highlight-string">"item"</span>, <span class="lg-highlight-string">"planner"</span> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { <span class="lg-highlight-string">"qty"</span>, <span class="lg-highlight-number">75</span> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { <span class="lg-highlight-string">"size"</span>, <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">BsonDocument</span> { { <span class="lg-highlight-string">"h"</span>, <span class="lg-highlight-number">22.85</span> }, { <span class="lg-highlight-string">"w"</span>, <span class="lg-highlight-number">30</span> }, { <span class="lg-highlight-string">"uom"</span>, <span class="lg-highlight-string">"cm"</span> } } },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { <span class="lg-highlight-string">"status"</span>, <span class="lg-highlight-string">"D"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">BsonDocument</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { <span class="lg-highlight-string">"item"</span>, <span class="lg-highlight-string">"postcard"</span> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { <span class="lg-highlight-string">"qty"</span>, <span class="lg-highlight-number">45</span> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { <span class="lg-highlight-string">"size"</span>, <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">BsonDocument</span> { { <span class="lg-highlight-string">"h"</span>, <span class="lg-highlight-number">10</span> }, { <span class="lg-highlight-string">"w"</span>, <span class="lg-highlight-number">15.25</span> }, { <span class="lg-highlight-string">"uom"</span>, <span class="lg-highlight-string">"cm"</span> } } },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { <span class="lg-highlight-string">"status"</span>, <span class="lg-highlight-string">"A"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">};</td></tr><tr class=""><td class="leafygreen-ui-7razhx">collection.<span class="lg-highlight-title lg-highlight-class">InsertMany</span>(documents);</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">docs <!-- -->:<!-- -->= []interface{}{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> bson.<span class="lg-highlight-property">D</span>{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {<span class="lg-highlight-string">"item"</span>, <span class="lg-highlight-string">"journal"</span>},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {<span class="lg-highlight-string">"qty"</span>, <span class="lg-highlight-number">25</span>},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {<span class="lg-highlight-string">"size"</span>, bson.<span class="lg-highlight-property">D</span>{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {<span class="lg-highlight-string">"h"</span>, <span class="lg-highlight-number">14</span>},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {<span class="lg-highlight-string">"w"</span>, <span class="lg-highlight-number">21</span>},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {<span class="lg-highlight-string">"uom"</span>, <span class="lg-highlight-string">"cm"</span>},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {<span class="lg-highlight-string">"status"</span>, <span class="lg-highlight-string">"A"</span>},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> bson.<span class="lg-highlight-property">D</span>{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {<span class="lg-highlight-string">"item"</span>, <span class="lg-highlight-string">"notebook"</span>},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {<span class="lg-highlight-string">"qty"</span>, <span class="lg-highlight-number">50</span>},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {<span class="lg-highlight-string">"size"</span>, bson.<span class="lg-highlight-property">D</span>{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {<span class="lg-highlight-string">"h"</span>, <span class="lg-highlight-number">8.5</span>},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {<span class="lg-highlight-string">"w"</span>, <span class="lg-highlight-number">11</span>},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {<span class="lg-highlight-string">"uom"</span>, <span class="lg-highlight-string">"in"</span>},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {<span class="lg-highlight-string">"status"</span>, <span class="lg-highlight-string">"P"</span>},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> bson.<span class="lg-highlight-property">D</span>{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {<span class="lg-highlight-string">"item"</span>, <span class="lg-highlight-string">"paper"</span>},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {<span class="lg-highlight-string">"qty"</span>, <span class="lg-highlight-number">100</span>},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {<span class="lg-highlight-string">"size"</span>, bson.<span class="lg-highlight-property">D</span>{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {<span class="lg-highlight-string">"h"</span>, <span class="lg-highlight-number">8.5</span>},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {<span class="lg-highlight-string">"w"</span>, <span class="lg-highlight-number">11</span>},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {<span class="lg-highlight-string">"uom"</span>, <span class="lg-highlight-string">"in"</span>},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {<span class="lg-highlight-string">"status"</span>, <span class="lg-highlight-string">"D"</span>},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> bson.<span class="lg-highlight-property">D</span>{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {<span class="lg-highlight-string">"item"</span>, <span class="lg-highlight-string">"planner"</span>},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {<span class="lg-highlight-string">"qty"</span>, <span class="lg-highlight-number">75</span>},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {<span class="lg-highlight-string">"size"</span>, bson.<span class="lg-highlight-property">D</span>{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {<span class="lg-highlight-string">"h"</span>, <span class="lg-highlight-number">22.85</span>},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {<span class="lg-highlight-string">"w"</span>, <span class="lg-highlight-number">30</span>},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {<span class="lg-highlight-string">"uom"</span>, <span class="lg-highlight-string">"cm"</span>},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {<span class="lg-highlight-string">"status"</span>, <span class="lg-highlight-string">"D"</span>},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> bson.<span class="lg-highlight-property">D</span>{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {<span class="lg-highlight-string">"item"</span>, <span class="lg-highlight-string">"postcard"</span>},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {<span class="lg-highlight-string">"qty"</span>, <span class="lg-highlight-number">45</span>},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {<span class="lg-highlight-string">"size"</span>, bson.<span class="lg-highlight-property">D</span>{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {<span class="lg-highlight-string">"h"</span>, <span class="lg-highlight-number">10</span>},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {<span class="lg-highlight-string">"w"</span>, <span class="lg-highlight-number">15.25</span>},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {<span class="lg-highlight-string">"uom"</span>, <span class="lg-highlight-string">"cm"</span>},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {<span class="lg-highlight-string">"status"</span>, <span class="lg-highlight-string">"A"</span>},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">result<!-- -->, <!-- -->err := coll.<span class="lg-highlight-title lg-highlight-class">InsertMany</span>(context.<span class="lg-highlight-title lg-highlight-function">TODO</span>(), docs)</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">Publisher</span><<span class="lg-highlight-title lg-highlight-class">Success</span>> insertManyPublisher = collection.<span class="lg-highlight-title lg-highlight-function">insertMany</span>(<span class="lg-highlight-title lg-highlight-function">asList</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-class">Document</span>.<span class="lg-highlight-title lg-highlight-function">parse</span>(<span class="lg-highlight-string">"{ item: 'journal', qty: 25, size: { h: 14, w: 21, uom: 'cm' }, status: 'A' }"</span>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-class">Document</span>.<span class="lg-highlight-title lg-highlight-function">parse</span>(<span class="lg-highlight-string">"{ item: 'notebook', qty: 50, size: { h: 8.5, w: 11, uom: 'in' }, status: 'A' }"</span>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-class">Document</span>.<span class="lg-highlight-title lg-highlight-function">parse</span>(<span class="lg-highlight-string">"{ item: 'paper', qty: 100, size: { h: 8.5, w: 11, uom: 'in' }, status: 'D' }"</span>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-class">Document</span>.<span class="lg-highlight-title lg-highlight-function">parse</span>(<span class="lg-highlight-string">"{ item: 'planner', qty: 75, size: { h: 22.85, w: 30, uom: 'cm' }, status: 'D' }"</span>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-class">Document</span>.<span class="lg-highlight-title lg-highlight-function">parse</span>(<span class="lg-highlight-string">"{ item: 'postcard', qty: 45, size: { h: 10, w: 15.25, uom: 'cm' }, status: 'A' }"</span>)</td></tr><tr class=""><td class="leafygreen-ui-7razhx">));</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">collection.<span class="lg-highlight-title lg-highlight-function">insertMany</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-function">listOf</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-class">Document</span>(<span class="lg-highlight-string">"item"</span>, <span class="lg-highlight-string">"journal"</span>)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"qty"</span>, <span class="lg-highlight-number">25</span>)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"size"</span>, <span class="lg-highlight-title lg-highlight-class">Document</span>(<span class="lg-highlight-string">"h"</span>, <span class="lg-highlight-number">14</span>).<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"w"</span>, <span class="lg-highlight-number">21</span>).<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"uom"</span>, <span class="lg-highlight-string">"cm"</span>))</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"status"</span>, <span class="lg-highlight-string">"A"</span>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-class">Document</span>(<span class="lg-highlight-string">"item"</span>, <span class="lg-highlight-string">"notebook"</span>)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"qty"</span>, <span class="lg-highlight-number">50</span>)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"size"</span>, <span class="lg-highlight-title lg-highlight-class">Document</span>(<span class="lg-highlight-string">"h"</span>, <span class="lg-highlight-number">8.5</span>).<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"w"</span>, <span class="lg-highlight-number">11</span>).<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"uom"</span>, <span class="lg-highlight-string">"in"</span>))</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"status"</span>, <span class="lg-highlight-string">"A"</span>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-class">Document</span>(<span class="lg-highlight-string">"item"</span>, <span class="lg-highlight-string">"paper"</span>)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"qty"</span>, <span class="lg-highlight-number">100</span>)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"size"</span>, <span class="lg-highlight-title lg-highlight-class">Document</span>(<span class="lg-highlight-string">"h"</span>, <span class="lg-highlight-number">8.5</span>).<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"w"</span>, <span class="lg-highlight-number">11</span>).<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"uom"</span>, <span class="lg-highlight-string">"in"</span>))</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"status"</span>, <span class="lg-highlight-string">"D"</span>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-class">Document</span>(<span class="lg-highlight-string">"item"</span>, <span class="lg-highlight-string">"planner"</span>)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"qty"</span>, <span class="lg-highlight-number">75</span>)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"size"</span>, <span class="lg-highlight-title lg-highlight-class">Document</span>(<span class="lg-highlight-string">"h"</span>, <span class="lg-highlight-number">22.85</span>).<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"w"</span>, <span class="lg-highlight-number">30</span>).<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"uom"</span>, <span class="lg-highlight-string">"cm"</span>))</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"status"</span>, <span class="lg-highlight-string">"D"</span>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-class">Document</span>(<span class="lg-highlight-string">"item"</span>, <span class="lg-highlight-string">"postcard"</span>)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"qty"</span>, <span class="lg-highlight-number">45</span>)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"size"</span>, <span class="lg-highlight-title lg-highlight-class">Document</span>(<span class="lg-highlight-string">"h"</span>, <span class="lg-highlight-number">10</span>).<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"w"</span>, <span class="lg-highlight-number">15.25</span>).<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"uom"</span>, <span class="lg-highlight-string">"cm"</span>))</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"status"</span>, <span class="lg-highlight-string">"A"</span>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> )</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">await</span> db.<span class="lg-highlight-property">inventory</span>.<span class="lg-highlight-title lg-highlight-function">insert_many</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> [</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"item"</span>: <span class="lg-highlight-string">"journal"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"qty"</span>: <span class="lg-highlight-number">25</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"size"</span>: {<span class="lg-highlight-string">"h"</span>: <span class="lg-highlight-number">14</span>, <span class="lg-highlight-string">"w"</span>: <span class="lg-highlight-number">21</span>, <span class="lg-highlight-string">"uom"</span>: <span class="lg-highlight-string">"cm"</span>},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"status"</span>: <span class="lg-highlight-string">"A"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"item"</span>: <span class="lg-highlight-string">"notebook"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"qty"</span>: <span class="lg-highlight-number">50</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"size"</span>: {<span class="lg-highlight-string">"h"</span>: <span class="lg-highlight-number">8.5</span>, <span class="lg-highlight-string">"w"</span>: <span class="lg-highlight-number">11</span>, <span class="lg-highlight-string">"uom"</span>: <span class="lg-highlight-string">"in"</span>},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"status"</span>: <span class="lg-highlight-string">"P"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"item"</span>: <span class="lg-highlight-string">"paper"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"qty"</span>: <span class="lg-highlight-number">100</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"size"</span>: {<span class="lg-highlight-string">"h"</span>: <span class="lg-highlight-number">8.5</span>, <span class="lg-highlight-string">"w"</span>: <span class="lg-highlight-number">11</span>, <span class="lg-highlight-string">"uom"</span>: <span class="lg-highlight-string">"in"</span>},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"status"</span>: <span class="lg-highlight-string">"D"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"item"</span>: <span class="lg-highlight-string">"planner"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"qty"</span>: <span class="lg-highlight-number">75</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"size"</span>: {<span class="lg-highlight-string">"h"</span>: <span class="lg-highlight-number">22.85</span>, <span class="lg-highlight-string">"w"</span>: <span class="lg-highlight-number">30</span>, <span class="lg-highlight-string">"uom"</span>: <span class="lg-highlight-string">"cm"</span>},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"status"</span>: <span class="lg-highlight-string">"D"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"item"</span>: <span class="lg-highlight-string">"postcard"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"qty"</span>: <span class="lg-highlight-number">45</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"size"</span>: {<span class="lg-highlight-string">"h"</span>: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-string">"w"</span>: <span class="lg-highlight-number">15.25</span>, <span class="lg-highlight-string">"uom"</span>: <span class="lg-highlight-string">"cm"</span>},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"status"</span>: <span class="lg-highlight-string">"A"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">await</span> db.<span class="lg-highlight-title lg-highlight-function">collection</span>(<span class="lg-highlight-string">'inventory'</span>).<span class="lg-highlight-title lg-highlight-function">insertMany</span>(<!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">item</span>: <span class="lg-highlight-string">'journal'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">25</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">size</span>: <!-- -->{ <span class="lg-highlight-attr">h</span>: <span class="lg-highlight-number">14</span>, <span class="lg-highlight-attr">w</span>: <span class="lg-highlight-number">21</span>, <span class="lg-highlight-attr">uom</span>: <span class="lg-highlight-string">'cm'</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">status</span>: <span class="lg-highlight-string">'A'</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">item</span>: <span class="lg-highlight-string">'notebook'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">50</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">size</span>: <!-- -->{ <span class="lg-highlight-attr">h</span>: <span class="lg-highlight-number">8.5</span>, <span class="lg-highlight-attr">w</span>: <span class="lg-highlight-number">11</span>, <span class="lg-highlight-attr">uom</span>: <span class="lg-highlight-string">'in'</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">status</span>: <span class="lg-highlight-string">'P'</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">item</span>: <span class="lg-highlight-string">'paper'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">100</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">size</span>: <!-- -->{ <span class="lg-highlight-attr">h</span>: <span class="lg-highlight-number">8.5</span>, <span class="lg-highlight-attr">w</span>: <span class="lg-highlight-number">11</span>, <span class="lg-highlight-attr">uom</span>: <span class="lg-highlight-string">'in'</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">status</span>: <span class="lg-highlight-string">'D'</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">item</span>: <span class="lg-highlight-string">'planner'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">75</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">size</span>: <!-- -->{ <span class="lg-highlight-attr">h</span>: <span class="lg-highlight-number">22.85</span>, <span class="lg-highlight-attr">w</span>: <span class="lg-highlight-number">30</span>, <span class="lg-highlight-attr">uom</span>: <span class="lg-highlight-string">'cm'</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">status</span>: <span class="lg-highlight-string">'D'</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">item</span>: <span class="lg-highlight-string">'postcard'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">45</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">size</span>: <!-- -->{ <span class="lg-highlight-attr">h</span>: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-attr">w</span>: <span class="lg-highlight-number">15.25</span>, <span class="lg-highlight-attr">uom</span>: <span class="lg-highlight-string">'cm'</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">status</span>: <span class="lg-highlight-string">'A'</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">])<!-- -->;</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">$db<!-- -->-<!-- -->><!-- --><!-- --><span class="lg-highlight-title lg-highlight-function">coll</span>(<span class="lg-highlight-string">"inventory"</span>)<!-- -->-<!-- -->><!-- --><!-- --><span class="lg-highlight-title lg-highlight-function">insert_many</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-params lg-highlight-function">item</span><span class="lg-highlight-function"> =></span> <span class="lg-highlight-string">"journal"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-params lg-highlight-function">qty</span><span class="lg-highlight-function"> =></span> <span class="lg-highlight-number">25</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-params lg-highlight-function">size</span><!-- --><span class="lg-highlight-function"> =></span> { <span class="lg-highlight-params lg-highlight-function">h</span><span class="lg-highlight-function"> =></span> <span class="lg-highlight-number">14</span>, <span class="lg-highlight-params lg-highlight-function">w</span><!-- --><span class="lg-highlight-function"> =></span> <span class="lg-highlight-number">21</span>, <span class="lg-highlight-params lg-highlight-function">uom</span><span class="lg-highlight-function"> =></span> <span class="lg-highlight-string">"cm"</span> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-params lg-highlight-function">status</span><span class="lg-highlight-function"> =></span> <span class="lg-highlight-string">"A"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-params lg-highlight-function">item</span><span class="lg-highlight-function"> =></span> <span class="lg-highlight-string">"notebook"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-params lg-highlight-function">qty</span><span class="lg-highlight-function"> =></span> <span class="lg-highlight-number">50</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-params lg-highlight-function">size</span><!-- --><span class="lg-highlight-function"> =></span> { <span class="lg-highlight-params lg-highlight-function">h</span><span class="lg-highlight-function"> =></span> <span class="lg-highlight-number">8.5</span>, <span class="lg-highlight-params lg-highlight-function">w</span><!-- --><span class="lg-highlight-function"> =></span> <span class="lg-highlight-number">11</span>, <span class="lg-highlight-params lg-highlight-function">uom</span><span class="lg-highlight-function"> =></span> <span class="lg-highlight-string">"in"</span> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-params lg-highlight-function">status</span><span class="lg-highlight-function"> =></span> <span class="lg-highlight-string">"P"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-params lg-highlight-function">item</span><span class="lg-highlight-function"> =></span> <span class="lg-highlight-string">"paper"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-params lg-highlight-function">qty</span><span class="lg-highlight-function"> =></span> <span class="lg-highlight-number">100</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-params lg-highlight-function">size</span><!-- --><span class="lg-highlight-function"> =></span> { <span class="lg-highlight-params lg-highlight-function">h</span><span class="lg-highlight-function"> =></span> <span class="lg-highlight-number">8.5</span>, <span class="lg-highlight-params lg-highlight-function">w</span><!-- --><span class="lg-highlight-function"> =></span> <span class="lg-highlight-number">11</span>, <span class="lg-highlight-params lg-highlight-function">uom</span><span class="lg-highlight-function"> =></span> <span class="lg-highlight-string">"in"</span> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-params lg-highlight-function">status</span><span class="lg-highlight-function"> =></span> <span class="lg-highlight-string">"D"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-params lg-highlight-function">item</span><span class="lg-highlight-function"> =></span> <span class="lg-highlight-string">"planner"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-params lg-highlight-function">qty</span><span class="lg-highlight-function"> =></span> <span class="lg-highlight-number">75</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-params lg-highlight-function">size</span><!-- --><span class="lg-highlight-function"> =></span> { <span class="lg-highlight-params lg-highlight-function">h</span><span class="lg-highlight-function"> =></span> <span class="lg-highlight-number">22.85</span>, <span class="lg-highlight-params lg-highlight-function">w</span><!-- --><span class="lg-highlight-function"> =></span> <span class="lg-highlight-number">30</span>, <span class="lg-highlight-params lg-highlight-function">uom</span><span class="lg-highlight-function"> =></span> <span class="lg-highlight-string">"cm"</span> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-params lg-highlight-function">status</span><span class="lg-highlight-function"> =></span> <span class="lg-highlight-string">"D"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-params lg-highlight-function">item</span><span class="lg-highlight-function"> =></span> <span class="lg-highlight-string">"postcard"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-params lg-highlight-function">qty</span><span class="lg-highlight-function"> =></span> <span class="lg-highlight-number">45</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-params lg-highlight-function">size</span><!-- --><span class="lg-highlight-function"> =></span> { <span class="lg-highlight-params lg-highlight-function">h</span><span class="lg-highlight-function"> =></span> <span class="lg-highlight-number">10</span>, <span class="lg-highlight-params lg-highlight-function">w</span><!-- --><span class="lg-highlight-function"> =></span> <span class="lg-highlight-number">15.25</span>, <span class="lg-highlight-params lg-highlight-function">uom</span><span class="lg-highlight-function"> =></span> <span class="lg-highlight-string">"cm"</span> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-params lg-highlight-function">status</span><span class="lg-highlight-function"> =></span> <span class="lg-highlight-string">"A"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)<!-- -->;</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">$insertManyResult = $db->inventory-><span class="lg-highlight-title lg-highlight-function">insertMany</span>([</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> [</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">'item'</span> => <span class="lg-highlight-string">'journal'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">'qty'</span> => <span class="lg-highlight-number">25</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">'size'</span> => [<span class="lg-highlight-string">'h'</span> => <span class="lg-highlight-number">14</span>, <span class="lg-highlight-string">'w'</span> => <span class="lg-highlight-number">21</span>, <span class="lg-highlight-string">'uom'</span> => <span class="lg-highlight-string">'cm'</span>],</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">'status'</span> => <span class="lg-highlight-string">'A'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ],</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> [</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">'item'</span> => <span class="lg-highlight-string">'notebook'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">'qty'</span> => <span class="lg-highlight-number">50</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">'size'</span> => [<span class="lg-highlight-string">'h'</span> => <span class="lg-highlight-number">8.5</span>, <span class="lg-highlight-string">'w'</span> => <span class="lg-highlight-number">11</span>, <span class="lg-highlight-string">'uom'</span> => <span class="lg-highlight-string">'in'</span>],</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">'status'</span> => <span class="lg-highlight-string">'P'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ],</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> [</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">'item'</span> => <span class="lg-highlight-string">'paper'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">'qty'</span> => <span class="lg-highlight-number">100</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">'size'</span> => [<span class="lg-highlight-string">'h'</span> => <span class="lg-highlight-number">8.5</span>, <span class="lg-highlight-string">'w'</span> => <span class="lg-highlight-number">11</span>, <span class="lg-highlight-string">'uom'</span> => <span class="lg-highlight-string">'in'</span>],</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">'status'</span> => <span class="lg-highlight-string">'D'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ],</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> [</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">'item'</span> => <span class="lg-highlight-string">'planner'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">'qty'</span> => <span class="lg-highlight-number">75</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">'size'</span> => [<span class="lg-highlight-string">'h'</span> => <span class="lg-highlight-number">22.85</span>, <span class="lg-highlight-string">'w'</span> => <span class="lg-highlight-number">30</span>, <span class="lg-highlight-string">'uom'</span> => <span class="lg-highlight-string">'cm'</span>],</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">'status'</span> => <span class="lg-highlight-string">'D'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ],</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> [</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">'item'</span> => <span class="lg-highlight-string">'postcard'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">'qty'</span> => <span class="lg-highlight-number">45</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">'size'</span> => [<span class="lg-highlight-string">'h'</span> => <span class="lg-highlight-number">10</span>, <span class="lg-highlight-string">'w'</span> => <span class="lg-highlight-number">15.25</span>, <span class="lg-highlight-string">'uom'</span> => <span class="lg-highlight-string">'cm'</span>],</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">'status'</span> => <span class="lg-highlight-string">'A'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ],</td></tr><tr class=""><td class="leafygreen-ui-7razhx">])<!-- -->;</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">inventory</span>.<span class="lg-highlight-title lg-highlight-function">insert_many</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> [</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"item"</span>: <span class="lg-highlight-string">"journal"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"qty"</span>: <span class="lg-highlight-number">25</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"size"</span>: {<span class="lg-highlight-string">"h"</span>: <span class="lg-highlight-number">14</span>, <span class="lg-highlight-string">"w"</span>: <span class="lg-highlight-number">21</span>, <span class="lg-highlight-string">"uom"</span>: <span class="lg-highlight-string">"cm"</span>},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"status"</span>: <span class="lg-highlight-string">"A"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"item"</span>: <span class="lg-highlight-string">"notebook"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"qty"</span>: <span class="lg-highlight-number">50</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"size"</span>: {<span class="lg-highlight-string">"h"</span>: <span class="lg-highlight-number">8.5</span>, <span class="lg-highlight-string">"w"</span>: <span class="lg-highlight-number">11</span>, <span class="lg-highlight-string">"uom"</span>: <span class="lg-highlight-string">"in"</span>},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"status"</span>: <span class="lg-highlight-string">"P"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"item"</span>: <span class="lg-highlight-string">"paper"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"qty"</span>: <span class="lg-highlight-number">100</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"size"</span>: {<span class="lg-highlight-string">"h"</span>: <span class="lg-highlight-number">8.5</span>, <span class="lg-highlight-string">"w"</span>: <span class="lg-highlight-number">11</span>, <span class="lg-highlight-string">"uom"</span>: <span class="lg-highlight-string">"in"</span>},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"status"</span>: <span class="lg-highlight-string">"D"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"item"</span>: <span class="lg-highlight-string">"planner"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"qty"</span>: <span class="lg-highlight-number">75</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"size"</span>: {<span class="lg-highlight-string">"h"</span>: <span class="lg-highlight-number">22.85</span>, <span class="lg-highlight-string">"w"</span>: <span class="lg-highlight-number">30</span>, <span class="lg-highlight-string">"uom"</span>: <span class="lg-highlight-string">"cm"</span>},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"status"</span>: <span class="lg-highlight-string">"D"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"item"</span>: <span class="lg-highlight-string">"postcard"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"qty"</span>: <span class="lg-highlight-number">45</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"size"</span>: {<span class="lg-highlight-string">"h"</span>: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-string">"w"</span>: <span class="lg-highlight-number">15.25</span>, <span class="lg-highlight-string">"uom"</span>: <span class="lg-highlight-string">"cm"</span>},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"status"</span>: <span class="lg-highlight-string">"A"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">client<!-- -->[<!-- -->:inventory].<span class="lg-highlight-title lg-highlight-function">insert_many</span>(<!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">item</span>: <span class="lg-highlight-string">'journal'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">25</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">size</span>: <!-- -->{ <span class="lg-highlight-attr">h</span>: <span class="lg-highlight-number">14</span>, <span class="lg-highlight-attr">w</span>: <span class="lg-highlight-number">21</span>, <span class="lg-highlight-attr">uom</span>: <span class="lg-highlight-string">'cm'</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">status</span>: <span class="lg-highlight-string">'A'</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">item</span>: <span class="lg-highlight-string">'notebook'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">50</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">size</span>: <!-- -->{ <span class="lg-highlight-attr">h</span>: <span class="lg-highlight-number">8.5</span>, <span class="lg-highlight-attr">w</span>: <span class="lg-highlight-number">11</span>, <span class="lg-highlight-attr">uom</span>: <span class="lg-highlight-string">'in'</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">status</span>: <span class="lg-highlight-string">'P'</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">item</span>: <span class="lg-highlight-string">'paper'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">100</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">size</span>: <!-- -->{ <span class="lg-highlight-attr">h</span>: <span class="lg-highlight-number">8.5</span>, <span class="lg-highlight-attr">w</span>: <span class="lg-highlight-number">11</span>, <span class="lg-highlight-attr">uom</span>: <span class="lg-highlight-string">'in'</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">status</span>: <span class="lg-highlight-string">'D'</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">item</span>: <span class="lg-highlight-string">'planner'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">75</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">size</span>: <!-- -->{ <span class="lg-highlight-attr">h</span>: <span class="lg-highlight-number">22.85</span>, <span class="lg-highlight-attr">w</span>: <span class="lg-highlight-number">30</span>, <span class="lg-highlight-attr">uom</span>: <span class="lg-highlight-string">'cm'</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">status</span>: <span class="lg-highlight-string">'D'</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">item</span>: <span class="lg-highlight-string">'postcard'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">45</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">size</span>: <!-- -->{ <span class="lg-highlight-attr">h</span>: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-attr">w</span>: <span class="lg-highlight-number">15.25</span>, <span class="lg-highlight-attr">uom</span>: <span class="lg-highlight-string">'cm'</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">status</span>: <span class="lg-highlight-string">'A'</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->])</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">collection.<span class="lg-highlight-title lg-highlight-function">insertMany</span>(<span class="lg-highlight-title lg-highlight-class">Seq</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-class">Document</span>(<span class="lg-highlight-string">""</span><span class="lg-highlight-string">"{ item: "</span>journal<span class="lg-highlight-string">", qty: 25, size: { h: 14, w: 21, uom: "</span>cm<span class="lg-highlight-string">" }, status: "</span>A<span class="lg-highlight-string">" }"</span><span class="lg-highlight-string">""</span>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-class">Document</span>(<span class="lg-highlight-string">""</span><span class="lg-highlight-string">"{ item: "</span>notebook<span class="lg-highlight-string">", qty: 50, size: { h: 8.5, w: 11, uom: "</span><span class="lg-highlight-keyword">in</span><span class="lg-highlight-string">" }, status: "</span>A<span class="lg-highlight-string">" }"</span><span class="lg-highlight-string">""</span>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-class">Document</span>(<span class="lg-highlight-string">""</span><span class="lg-highlight-string">"{ item: "</span>paper<span class="lg-highlight-string">", qty: 100, size: { h: 8.5, w: 11, uom: "</span><span class="lg-highlight-keyword">in</span><span class="lg-highlight-string">" }, status: "</span>D<span class="lg-highlight-string">" }"</span><span class="lg-highlight-string">""</span>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-class">Document</span>(<span class="lg-highlight-string">""</span><span class="lg-highlight-string">"{ item: "</span>planner<span class="lg-highlight-string">", qty: 75, size: { h: 22.85, w: 30, uom: "</span>cm<span class="lg-highlight-string">" }, status: "</span>D<span class="lg-highlight-string">" }"</span><span class="lg-highlight-string">""</span>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-class">Document</span>(<span class="lg-highlight-string">""</span><span class="lg-highlight-string">"{ item: "</span>postcard<span class="lg-highlight-string">", qty: 45, size: { h: 10, w: 15.25, uom: "</span>cm<span class="lg-highlight-string">" }, status: "</span>A<span class="lg-highlight-string">" }"</span><span class="lg-highlight-string">""</span>)</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)).<span class="lg-highlight-title lg-highlight-function">execute</span>()</td></tr></tbody></table></code></pre>
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</div>
</button>
<button aria-controls="_fe0xa06v3" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_w77wnnvqa" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
C
</div>
</button>
<button aria-controls="_4elgt4dvg" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_apyegdpi1" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
C#
</div>
</button>
<button aria-controls="_3woaplvgu" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_7ygg194bl" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Go
</div>
</button>
<button aria-controls="_vj1h3lyjz" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_uy03p8yql" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Java (Async)
</div>
</button>
<button aria-controls="_bmd79r04e" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_fsfu0r3gi" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Java (Sync)
</div>
</button>
<button aria-controls="_ll4jzc4gp" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_byjdiw0mo" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Kotlin (Coroutine)
</div>
</button>
<button aria-controls="_eaa3oavqz" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_75f0hpyaa" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Motor
</div>
</button>
<button aria-controls="_0fiw3bivr" aria-selected="true" class="leafygreen-ui-1l773z1" data-text="" id="_5cdh913z9" name="" role="tab" tabindex="0">
<div class="leafygreen-ui-1nxuzmg">
Node.js
</div>
</button>
<button aria-controls="_sm1hz67mq" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_btbkk1of6" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Perl
</div>
</button>
<button aria-controls="_ia2dkkeq7" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_fn95qyqdz" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
PHP
</div>
</button>
<button aria-controls="_n4w58z0qq" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_imqadhrpa" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Python
</div>
</button>
<button aria-controls="_hkin1eqf8" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_spstrl9fu" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Ruby
</div>
</button>
<button aria-controls="_owat12n9n" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_g6vq9du5c" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Scala
</div>
</button>
</div>
<div class="leafygreen-ui-ov1ktg">
<div class="leafygreen-ui-1sg2lsz">
</div>
</div>
</div>
<div class="lg-ui-tab-panels-0000" data-lgid="lg-tabs-tab_panels">
<div>
<div aria-labelledby="_i2pey9uwa" class="leafygreen-ui-38lglc" id="_3j15ez0rb" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To delete all documents from a collection, pass an empty
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
filter
</a>
document
<code class="leafygreen-ui-1l06pbn">
{}
</code>
to the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.deleteMany/#mongodb-method-db.collection.deleteMany">
<code class="leafygreen-ui-1l06pbn">
db.collection.deleteMany()
</code>
</a>
method.
</p>
<p class="leafygreen-ui-1kp3ins">
The following example deletes
<em>
all
</em>
documents from the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_1yj5p47yw" class="leafygreen-ui-38lglc" id="_omwukuhth" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To delete all documents from a collection, pass the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongoc.org/libmongoc/current/mongoc_collection_t.html" rel="noopener noreferrer">
<span>
mongoc_collection_t
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
and a
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongoc.org/libbson/current/bson_t.html" rel="noopener noreferrer">
<span>
bson_t
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
that matches all documents to the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongoc.org/libmongoc/current/mongoc_collection_delete_many.html" rel="noopener noreferrer">
<span>
mongoc_collection_delete_many
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method.
</p>
<p class="leafygreen-ui-1kp3ins">
The following example deletes
<em>
all
</em>
documents from the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_6nw96te05" class="leafygreen-ui-38lglc" id="_w2jhafh89" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To delete all documents from a collection, pass an empty
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
filter
</a>
<code class="leafygreen-ui-1l06pbn">
Builders<BsonDocument>.Filter.Empty
</code>
to the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-csharp-driver/2.10/apidocs/html/M_MongoDB_Driver_IMongoCollection_1_DeleteMany.htm" rel="noopener noreferrer">
<span>
IMongoCollection.DeleteMany()
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method.
</p>
<p class="leafygreen-ui-1kp3ins">
The following example deletes
<em>
all
</em>
documents from the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_ffi8gm6be" class="leafygreen-ui-38lglc" id="_wn8mep9xk" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To delete all documents from a collection, pass an empty
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
filter
</a>
document to the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://godoc.org/github.com/mongodb/mongo-go-driver/mongo#Collection.DeleteMany" rel="noopener noreferrer">
<span>
Collection.DeleteMany
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
function.
</p>
<p class="leafygreen-ui-1kp3ins">
The following example deletes
<em>
all
</em>
documents from the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_5rgxqxy5u" class="leafygreen-ui-38lglc" id="_9n6my24rt" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To delete all documents from a collection, pass an empty
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/org/bson/Document" rel="noopener noreferrer">
<span>
org.bson.Document
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
object as the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
filter
</a>
to the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://mongodb.github.io/mongo-java-driver-reactivestreams/1.6/javadoc/com/mongodb/reactivestreams/client/MongoCollection.html#deleteMany(org.bson.conversions.Bson)" rel="noopener noreferrer">
<span>
com.mongodb.reactivestreams.client.MongoCollection.deleteMany
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method.
</p>
<p class="leafygreen-ui-1kp3ins">
The following example deletes
<em>
all
</em>
documents from the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_5q4x022c7" class="leafygreen-ui-38lglc" id="_uspsjag90" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To delete all documents from a collection, pass an empty
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/org/bson/Document" rel="noopener noreferrer">
<span>
org.bson.Document
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
object as the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
filter
</a>
to the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/MongoCollection.html#deleteMany-org.bson.conversions.Bson-" rel="noopener noreferrer">
<span>
com.mongodb.client.MongoCollection.deleteMany
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method.
</p>
<p class="leafygreen-ui-1kp3ins">
The following example deletes
<em>
all
</em>
documents from the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_0ut9n86co" class="leafygreen-ui-38lglc" id="_epppw3pkt" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To delete all documents from a collection, pass an empty
<code class="leafygreen-ui-1l06pbn">
Bson
</code>
object as the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
filter
</a>
to the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/4.11/apidocs/mongodb-driver-kotlin-coroutine/mongodb-driver-kotlin-coroutine/com.mongodb.kotlin.client.coroutine/-mongo-collection/delete-many.html" rel="noopener noreferrer">
<span>
MongoCollection.deleteMany()
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method.
</p>
<p class="leafygreen-ui-1kp3ins">
The following example deletes
<em>
all
</em>
documents from the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_97u95b07j" class="leafygreen-ui-38lglc" id="_pwx1a4ugl" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To delete all documents from a collection, pass an empty
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
filter
</a>
document
<code class="leafygreen-ui-1l06pbn">
{}
</code>
to the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://motor.readthedocs.io/en/stable/api-asyncio/asyncio_motor_collection.html#motor.motor_asyncio.AsyncIOMotorCollection.delete_many" rel="noopener noreferrer">
<span>
<code class="leafygreen-ui-1l06pbn">
motor.motor_asyncio.AsyncIOMotorCollection.delete_many
</code>
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method.
</p>
<p class="leafygreen-ui-1kp3ins">
The following example deletes
<em>
all
</em>
documents from the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_01rqfzbe4" class="" id="_yxqahpels" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To delete all documents from a collection, pass an empty
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
filter
</a>
document
<code class="leafygreen-ui-1l06pbn">
{}
</code>
to the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://mongodb.github.io/node-mongodb-native/3.6/api/Collection.html#deleteMany" rel="noopener noreferrer">
<span>
Collection.deleteMany()
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method.
</p>
<p class="leafygreen-ui-1kp3ins">
The following example deletes
<em>
all
</em>
documents from the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_hgewtht98" class="leafygreen-ui-38lglc" id="_1gqqjxhcp" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To delete all documents from a collection, pass an empty
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
filter
</a>
document
<code class="leafygreen-ui-1l06pbn">
{}
</code>
to the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://metacpan.org/pod/MongoDB::Collection#delete_many" rel="noopener noreferrer">
<span>
MongoDB::Collection::delete_many()
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method.
</p>
<p class="leafygreen-ui-1kp3ins">
The following example deletes
<em>
all
</em>
documents from the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_8q6936pqa" class="leafygreen-ui-38lglc" id="_n4upo7vav" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To delete all documents from a collection, pass an empty
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
filter
</a>
document
<code class="leafygreen-ui-1l06pbn">
[]
</code>
to the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/php-library/upcoming/reference/method/MongoDBCollection-deleteMany/#mongodb-phpmethod-phpmethod.MongoDB-Collection--deleteMany--" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
MongoDB\\Collection::deleteMany()
</code>
</span>
</a>
method.
</p>
<p class="leafygreen-ui-1kp3ins">
The following example deletes
<em>
all
</em>
documents from the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_nye8yx6zl" class="leafygreen-ui-38lglc" id="_e9hkqm5wn" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To delete all documents from a collection, pass an empty
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
filter
</a>
document
<code class="leafygreen-ui-1l06pbn">
{}
</code>
to the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://pymongo.readthedocs.io/en/stable/api/pymongo/collection.html#pymongo.collection.Collection.delete_many" rel="noopener noreferrer">
<span>
<code class="leafygreen-ui-1l06pbn">
pymongo.collection.Collection.delete_many
</code>
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method.
</p>
<p class="leafygreen-ui-1kp3ins">
The following example deletes
<em>
all
</em>
documents from the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_21lii0x2d" class="leafygreen-ui-38lglc" id="_19cgua3ej" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To delete all documents from a collection, pass an empty
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
filter
</a>
document
<code class="leafygreen-ui-1l06pbn">
{}
</code>
to the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://api.mongodb.com/ruby/current/Mongo/Collection.html#delete_many-instance_method" target="_self">
<span>
Mongo::Collection#delete_many()
</span>
</a>
method.
</p>
<p class="leafygreen-ui-1kp3ins">
The following example deletes
<em>
all
</em>
documents from the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_rbfmldeuu" class="leafygreen-ui-38lglc" id="_3min2lwk5" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To delete all documents from a collection, pass an empty
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
filter
</a>
<code class="leafygreen-ui-1l06pbn">
Document()
</code>
to the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://mongodb.github.io/mongo-scala-driver/2.9/scaladoc/org/mongodb/scala/MongoCollection.html#deleteMany(filter:org.mongodb.scala.bson.conversions.Bson,options:org.mongodb.scala.model.DeleteOptions):org.mongodb.scala.SingleObservable[org.mongodb.scala.result.DeleteResult]" rel="noopener noreferrer">
<span>
collection.deleteMany()
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method.
</p>
<p class="leafygreen-ui-1kp3ins">
The following example deletes
<em>
all
</em>
documents from the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection:
</p>
</div>
</div>
</div>
</div>
</div>
<div aria-hidden="true">
</div>
<div class="leafygreen-ui-f2qztv" data-lgid="lg-tabs">
<div class="leafygreen-ui-jp7pox" id="tabs-8">
<div aria-label="Tabs to describe usage of drivers" aria-orientation="horizontal" class="leafygreen-ui-m8p1vb lg-ui-tab-list-0000" data-lgid="lg-tabs-tab_list" role="tablist">
<button aria-controls="_depy3c702" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_oxd487yoc" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
MongoDB Shell
</div>
</button>
<button aria-controls="_vhdxsdzjh" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_9rrgkfjds" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
C
</div>
</button>
<button aria-controls="_71vfu0336" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_g1kok8778" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
C#
</div>
</button>
<button aria-controls="_3r1tstvyz" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_aessr4tej" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Go
</div>
</button>
<button aria-controls="_22wrj0hws" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_5wbyl3k4a" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Java (Async)
</div>
</button>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">inventory</span>.<span class="lg-highlight-title lg-highlight-function">deleteMany</span>(<!-- -->{<!-- -->})</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">mongoc_collection_t *collection;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">bson_t *selector;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">bool r;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">bson_error_t error;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">collection <!-- -->= <!-- -->mongoc_database_get_collection (db<!-- -->, <span class="lg-highlight-string">"inventory"</span>);</td></tr><tr class=""><td class="leafygreen-ui-7razhx">selector <!-- -->= <!-- --><span class="lg-highlight-variable lg-highlight-constant">BCON_NEW</span> (<!-- --><span class="lg-highlight-variable lg-highlight-constant">NULL</span>);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">r <!-- -->= <!-- -->mongoc_collection_delete_many (collection, selector<!-- -->, <span class="lg-highlight-variable lg-highlight-constant">NULL</span>, <span class="lg-highlight-variable lg-highlight-constant">NULL</span>, &error);</td></tr><tr class=""><td class="leafygreen-ui-7razhx">bson_destroy <!-- -->(<!-- -->selector);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">if</span> <!-- -->(<!-- -->!r) {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- --><span class="lg-highlight-variable lg-highlight-constant">MONGOC_ERROR</span> (<span class="lg-highlight-string">"%s</span><!-- --><span class="lg-highlight-string">\n</span><span class="lg-highlight-string">"</span>, error.<span class="lg-highlight-property">message</span>);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> goto done;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
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</svg>
</div>
</button>
<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
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<div aria-labelledby="_0f2v6l9oc" class="leafygreen-ui-38lglc" id="_k65tjhrj2" role="tabpanel">
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<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"var filter = Builders<bsondocument>.Filter.Empty;\nvar result = collection.DeleteMany(filter);","programmingLanguage":"C#"}
</script>
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<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> filter = <span class="lg-highlight-title lg-highlight-class">Builders</span><<span class="lg-highlight-title lg-highlight-class">BsonDocument</span>>.<span class="lg-highlight-property">Filter</span>.<span class="lg-highlight-property">Empty</span>;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> result = collection.<span class="lg-highlight-title lg-highlight-class">DeleteMany</span>(filter);</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
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<button aria-controls="select-106-menu" aria-describedby="select-106-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-107" type="button" value="Node.js">
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">collection.<span class="lg-highlight-title lg-highlight-function">deleteMany</span>(<span class="lg-highlight-title lg-highlight-function">empty</span>())</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">await</span> db.<span class="lg-highlight-property">inventory</span>.<span class="lg-highlight-title lg-highlight-function">delete_many</span>({})</td></tr></tbody></table></code></pre>
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{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"await db.collection('inventory').deleteMany({});","programmingLanguage":"JavaScript"}
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">await</span> db.<span class="lg-highlight-title lg-highlight-function">collection</span>(<span class="lg-highlight-string">'inventory'</span>).<span class="lg-highlight-title lg-highlight-function">deleteMany</span>(<!-- -->{<!-- -->})<!-- -->;</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">client<!-- -->[<!-- -->:inventory].<span class="lg-highlight-title lg-highlight-function">delete_many</span>(<!-- -->{<!-- -->})</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">collection.<span class="lg-highlight-title lg-highlight-function">deleteMany</span>(<span class="lg-highlight-title lg-highlight-class">Document</span>()).<span class="lg-highlight-title lg-highlight-function">execute</span>()</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
The method returns a document with the status of the operation. For
more information and examples, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.deleteMany/#mongodb-method-db.collection.deleteMany">
<code class="leafygreen-ui-1l06pbn">
deleteMany()
</code>
.
</a>
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_btxrrpxbg" class="leafygreen-ui-38lglc" id="_wn0oy92uh" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongoc.org/libmongoc/current/mongoc_collection_delete_many.html" rel="noopener noreferrer">
<span>
mongoc_collection_delete_many
</span>
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</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
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</svg>
</a>
method returns
<code class="leafygreen-ui-1l06pbn">
true
</code>
if successful, or returns
<code class="leafygreen-ui-1l06pbn">
false
</code>
and sets
an error if there are invalid arguments or a server or network error
occurs.
</p>
</div>
</div>
</div>
<div>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
Upon successful execution, the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-csharp-driver/2.10/apidocs/html/M_MongoDB_Driver_IMongoCollection_1_DeleteMany.htm" rel="noopener noreferrer">
<span>
IMongoCollection.DeleteMany()
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method returns an instance of
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-csharp-driver/2.10/apidocs/html/T_MongoDB_Driver_DeleteResult.htm" rel="noopener noreferrer">
<span>
DeleteResult
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
whose
<code class="leafygreen-ui-1l06pbn">
DeletedCount
</code>
property contains the number of documents
that matched the filter.
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_l6oqxf5u8" class="leafygreen-ui-38lglc" id="_71ph9ynwa" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
Upon successful execution, the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://godoc.org/github.com/mongodb/mongo-go-driver/mongo#Collection.DeleteMany" rel="noopener noreferrer">
<span>
Collection.DeleteMany
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
function returns an instance of
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://godoc.org/github.com/mongodb/mongo-go-driver/mongo#DeleteResult" rel="noopener noreferrer">
<span>
DeleteResult
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
whose
<code class="leafygreen-ui-1l06pbn">
DeletedCount
</code>
property contains the number of documents
that matched the filter.
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_03rcqoqyn" class="leafygreen-ui-38lglc" id="_cu4ifpqdk" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://mongodb.github.io/mongo-java-driver-reactivestreams/1.6/javadoc/com/mongodb/reactivestreams/client/MongoCollection.html#deleteMany(org.bson.conversions.Bson)" rel="noopener noreferrer">
<span>
com.mongodb.reactivestreams.client.MongoCollection.deleteMany
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
returns a
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://www.reactive-streams.org/reactive-streams-1.0.1-javadoc/org/reactivestreams/Publisher.html" rel="noopener noreferrer">
<span>
Publisher
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
object of type
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/result/DeleteResult" rel="noopener noreferrer">
<span>
com.mongodb.client.result.DeleteResult
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
if
successful. Returns an instance of
<code class="leafygreen-ui-1l06pbn">
com.mongodb.MongoException
</code>
if unsuccessful.
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_ozwr1z0h1" class="leafygreen-ui-38lglc" id="_9pgy2dh08" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/MongoCollection.html#deleteMany-org.bson.conversions.Bson-" rel="noopener noreferrer">
<span>
com.mongodb.client.MongoCollection.deleteMany
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method returns an instance of
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/result/DeleteResult" rel="noopener noreferrer">
<span>
com.mongodb.client.result.DeleteResult
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
with the status of the
operation.
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_rq6fyguq2" class="leafygreen-ui-38lglc" id="_iky350gnx" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/4.11/apidocs/mongodb-driver-kotlin-coroutine/mongodb-driver-kotlin-coroutine/com.mongodb.kotlin.client.coroutine/-mongo-collection/delete-many.html" rel="noopener noreferrer">
<span>
MongoCollection.deleteMany()
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method returns an instance of
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/4.11/apidocs/mongodb-driver-core/com/mongodb/client/result/DeleteResult.html" rel="noopener noreferrer">
<span>
com.mongodb.client.result.DeleteResult
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
that describes the status of the
operation and count of deleted documents.
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_idch3nfrj" class="leafygreen-ui-38lglc" id="_nemmdhfv0" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://motor.readthedocs.io/en/stable/api-asyncio/asyncio_motor_collection.html#motor.motor_asyncio.AsyncIOMotorCollection.delete_many" rel="noopener noreferrer">
<span>
<code class="leafygreen-ui-1l06pbn">
delete_many
</code>
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
coroutine asynchronously returns an instance of
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://pymongo.readthedocs.io/en/stable/api/pymongo/results.html#pymongo.results.DeleteResult" rel="noopener noreferrer">
<span>
<code class="leafygreen-ui-1l06pbn">
pymongo.results.DeleteResult
</code>
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
with the status of the
operation.
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_xfk7t9spw" class="" id="_60zml498g" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://mongodb.github.io/node-mongodb-native/3.6/api/Collection.html#deleteMany" rel="noopener noreferrer">
<span>
deleteMany()
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
returns a
promise that provides a
<code class="leafygreen-ui-1l06pbn">
result
</code>
. The
<code class="leafygreen-ui-1l06pbn">
result.deletedCount
</code>
property contains the number of documents that matched the
filter.
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_eio17cxc9" class="leafygreen-ui-38lglc" id="_4pekrcopy" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
Upon successful execution, the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://metacpan.org/pod/MongoDB::Collection#delete_many" rel="noopener noreferrer">
<span>
delete_many()
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method
returns an instance of
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://metacpan.org/pod/MongoDB::DeleteResult" rel="noopener noreferrer">
<span>
MongoDB::DeleteResult
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
whose
<code class="leafygreen-ui-1l06pbn">
deleted_count
</code>
attribute contains the number of documents
that matched the filter.
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_2ph9epm2p" class="leafygreen-ui-38lglc" id="_4cvebk864" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
Upon successful execution, the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/php-library/upcoming/reference/method/MongoDBCollection-deleteMany/#mongodb-phpmethod-phpmethod.MongoDB-Collection--deleteMany--" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
deleteMany()
</code>
</span>
</a>
method returns an instance of
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/php-library/upcoming/reference/class/MongoDBDeleteResult/#mongodb-phpclass-phpclass.MongoDB-DeleteResult" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
MongoDB\\DeleteResult
</code>
</span>
</a>
whose
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/php-library/upcoming/reference/method/MongoDBDeleteResult-getDeletedCount/#mongodb-phpmethod-phpmethod.MongoDB-DeleteResult--getDeletedCount--" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
getDeletedCount()
</code>
</span>
</a>
method returns the number of documents that matched the filter.
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_nahb711dp" class="leafygreen-ui-38lglc" id="_k3zglv6zh" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://pymongo.readthedocs.io/en/stable/api/pymongo/collection.html#pymongo.collection.Collection.delete_many" rel="noopener noreferrer">
<span>
<code class="leafygreen-ui-1l06pbn">
delete_many
</code>
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method returns an instance of
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://pymongo.readthedocs.io/en/stable/api/pymongo/results.html#pymongo.results.DeleteResult" rel="noopener noreferrer">
<span>
<code class="leafygreen-ui-1l06pbn">
pymongo.results.DeleteResult
</code>
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
with the status of the
operation.
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_uvse0nz28" class="leafygreen-ui-38lglc" id="_hpuscsnzc" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
Upon successful execution, the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://api.mongodb.com/ruby/current/Mongo/Collection.html#delete_many-instance_method" target="_self">
<span>
delete_many()
</span>
</a>
method
returns an instance of
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://api.mongodb.com/ruby/current/Mongo/Operation/Result.html" target="_self">
<span>
Mongo::Operation::Result
</span>
</a>
, whose
<code class="leafygreen-ui-1l06pbn">
deleted_count
</code>
attribute contains the number of documents
that matched the filter.
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_pots7b5c4" class="leafygreen-ui-38lglc" id="_6ioc7dsdd" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
Upon successful execution, the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://mongodb.github.io/mongo-scala-driver/2.9/scaladoc/org/mongodb/scala/MongoCollection.html#deleteMany(filter:org.mongodb.scala.bson.conversions.Bson,options:org.mongodb.scala.model.DeleteOptions):org.mongodb.scala.SingleObservable[org.mongodb.scala.result.DeleteResult]" rel="noopener noreferrer">
<span>
collection.deleteMany()
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method
returns an
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://mongodb.github.io/mongo-scala-driver/2.1/reference/observables/" rel="noopener noreferrer">
<span>
Observable
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
with a single element with a
<code class="leafygreen-ui-1l06pbn">
DeleteResult
</code>
type parameter or with
an
<code class="leafygreen-ui-1l06pbn">
com.mongodb.MongoException
</code>
.
</p>
</div>
</div>
</div>
</div>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Delete All Documents that Match a Condition
<a class="headerlink leafygreen-ui-1kepx47" href="#delete-all-documents-that-match-a-condition" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="delete-all-documents-that-match-a-condition">
</div>
</a>
</h2>
<div aria-hidden="true">
</div>
<div class="leafygreen-ui-f2qztv" data-lgid="lg-tabs">
<div class="leafygreen-ui-jp7pox" id="tabs-39">
<div aria-label="Tabs to describe usage of drivers" aria-orientation="horizontal" class="leafygreen-ui-m8p1vb lg-ui-tab-list-0000" data-lgid="lg-tabs-tab_list" role="tablist">
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<div class="leafygreen-ui-1nxuzmg">
MongoDB Shell
</div>
</button>
<button aria-controls="_4ggbd43s8" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_cjsbr5yb7" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
C
</div>
</button>
<button aria-controls="_kxvb57dy4" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_vfm0c2yqa" name="" role="tab" tabindex="-1">
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C#
</div>
</button>
<button aria-controls="_niake9gw7" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_qk6uc35nx" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Go
</div>
</button>
<button aria-controls="_d0km9ctpa" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_abnyi8xi1" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Java (Async)
</div>
</button>
<button aria-controls="_4a20q224b" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_hox0pfjff" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Java (Sync)
</div>
</button>
<button aria-controls="_3o0kgo52n" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_k4mcqu6x5" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Kotlin (Coroutine)
</div>
</button>
<button aria-controls="_404eky4zf" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_26oxtpqrr" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Motor
</div>
</button>
<button aria-controls="_vcoukc9xx" aria-selected="true" class="leafygreen-ui-1l773z1" data-text="" id="_twhv7laxq" name="" role="tab" tabindex="0">
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Node.js
</div>
</button>
<button aria-controls="_lf1jsn0p9" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_h7dzpck43" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Perl
</div>
</button>
<button aria-controls="_9als2n2p5" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_nflyxolvz" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
PHP
</div>
</button>
<button aria-controls="_hdqz8go0d" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_pxcte3jfi" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Python
</div>
</button>
<button aria-controls="_dgkzvjju4" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_rnwfi96lm" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Ruby
</div>
</button>
<button aria-controls="_ndddl1aqm" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_2vf42zwfw" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Scala
</div>
</button>
</div>
<div class="leafygreen-ui-ov1ktg">
<div class="leafygreen-ui-1sg2lsz">
</div>
</div>
</div>
<div class="lg-ui-tab-panels-0000" data-lgid="lg-tabs-tab_panels">
<div>
<div aria-labelledby="_lsrixce83" class="leafygreen-ui-38lglc" id="_smwqa9w20" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
You can specify criteria, or filters, that identify the documents to
delete. The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
filters
</a>
use the same syntax
as read operations.
</p>
<div aria-hidden="true">
</div>
<div class="leafygreen-ui-f2qztv" data-lgid="lg-tabs">
<div class="leafygreen-ui-jp7pox" id="tabs-11">
<div aria-label="Tabs to describe usage of drivers" aria-orientation="horizontal" class="leafygreen-ui-m8p1vb lg-ui-tab-list-0000" data-lgid="lg-tabs-tab_list" role="tablist">
<button aria-controls="_tkqn949sq" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_azkxy3ew8" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
MongoDB Shell
</div>
</button>
<button aria-controls="_9n0cbxw1z" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_fpqi4vvao" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Compass
</div>
</button>
<button aria-controls="_p5p3wtysh" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_3v3rs1syl" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
C
</div>
</button>
<button aria-controls="_ozd6oo5ki" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_rsua3go56" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
C#
</div>
</button>
<button aria-controls="_vch9axeon" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_8fgqynuwi" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Java (Async)
</div>
</button>
<button aria-controls="_45uzjmw86" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_ra5khno9a" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Java (Sync)
</div>
</button>
<button aria-controls="_qvkq8a9hd" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_6revrfjz1" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Kotlin (Coroutine)
</div>
</button>
<button aria-controls="_oefo1n46y" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_sz1vb01tw" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Motor
</div>
</button>
<button aria-controls="_kglmeulz1" aria-selected="true" class="leafygreen-ui-1l773z1" data-text="" id="_9labv01k3" name="" role="tab" tabindex="0">
<div class="leafygreen-ui-1nxuzmg">
Node.js
</div>
</button>
<button aria-controls="_0i7ovfiwn" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_ivzbyhfwb" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Perl
</div>
</button>
<button aria-controls="_i45uhypzl" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_29mq34xjz" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
PHP
</div>
</button>
<button aria-controls="_rylvfvwqr" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_fmgykoxvc" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Python
</div>
</button>
<button aria-controls="_533jptapl" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_m53aiaio6" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Ruby
</div>
</button>
<button aria-controls="_xu9bs0la2" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_pr6q5dpyr" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Scala
</div>
</button>
</div>
<div class="leafygreen-ui-ov1ktg">
<div class="leafygreen-ui-1sg2lsz">
</div>
</div>
</div>
<div class="lg-ui-tab-panels-0000" data-lgid="lg-tabs-tab_panels">
<div>
<div aria-labelledby="_24jp6pgwu" class="leafygreen-ui-38lglc" id="_k7ijrc1fe" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-142-menu" aria-describedby="select-142-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-143" type="button" value="Node.js">
<div class="leafygreen-ui-v038xi">
</div>
<div class="leafygreen-ui-16tr4y">
<svg aria-hidden="true" class="leafygreen-ui-18si895" fill="none" role="presentation" viewbox="0 0 30 30" xmlns="http://www.w3.org/2000/svg">
<g clip-path="url(#clip0_2131_12968)">
<mask height="19" id="mask0_2131_12968" maskunits="userSpaceOnUse" width="30" x="0" y="6">
<path d="M30 6.04395H0V24.3825H30V6.04395Z" fill="white">
</path>
</mask>
<g mask="url(#mask0_2131_12968)">
<mask height="19" id="mask1_2131_12968" maskunits="userSpaceOnUse" width="30" x="0" y="6">
<path d="M30 6.04395H0V24.3825H30V6.04395Z" fill="white">
</path>
</mask>
<g mask="url(#mask1_2131_12968)">
<path d="M14.8241 24.3823C14.7224 24.3823 14.6274 24.3552 14.5393 24.3078L13.6374 23.7731C13.5018 23.6986 13.5696 23.6715 13.6103 23.658C13.7934 23.597 13.8273 23.5835 14.0172 23.4751C14.0375 23.4616 14.0646 23.4684 14.085 23.4819L14.7767 23.8949C14.8038 23.9084 14.8377 23.9084 14.858 23.8949L17.5637 22.3311C17.5909 22.3176 17.6044 22.2905 17.6044 22.2567V19.136C17.6044 19.1021 17.5909 19.075 17.5637 19.0615L14.858 17.5045C14.8309 17.4909 14.797 17.4909 14.7767 17.5045L12.071 19.0615C12.0439 19.075 12.0302 19.1089 12.0302 19.136V22.2567C12.0302 22.2838 12.0439 22.3176 12.071 22.3311L12.8101 22.7576C13.2102 22.9607 13.4611 22.7237 13.4611 22.4868V19.4067C13.4611 19.3661 13.495 19.3255 13.5425 19.3255H13.8884C13.929 19.3255 13.9697 19.3593 13.9697 19.4067V22.4868C13.9697 23.0217 13.6781 23.333 13.1695 23.333C13.0136 23.333 12.8915 23.333 12.5457 23.1638L11.8336 22.7576C11.6574 22.6561 11.5488 22.4665 11.5488 22.2635V19.1427C11.5488 18.9396 11.6574 18.7501 11.8336 18.6485L14.5393 17.0848C14.7089 16.99 14.9394 16.99 15.109 17.0848L17.8146 18.6485C17.9909 18.7501 18.0995 18.9396 18.0995 19.1427V22.2635C18.0995 22.4665 17.9909 22.6561 17.8146 22.7576L15.109 24.3214C15.0276 24.3552 14.9259 24.3823 14.8241 24.3823Z" fill="black">
</path>
<path d="M15.6643 22.2362C14.4775 22.2362 14.2334 21.6946 14.2334 21.2343C14.2334 21.1936 14.2673 21.153 14.3147 21.153H14.6674C14.7081 21.153 14.742 21.1801 14.742 21.2207C14.7963 21.5795 14.9522 21.7555 15.671 21.7555C16.2407 21.7555 16.4847 21.6269 16.4847 21.3223C16.4847 21.1462 16.4169 21.0177 15.5286 20.9297C14.7895 20.8552 14.3284 20.6928 14.3284 20.1038C14.3284 19.5555 14.7895 19.2305 15.5625 19.2305C16.4305 19.2305 16.8577 19.5284 16.912 20.1782C16.912 20.1986 16.9052 20.2189 16.8916 20.2392C16.8781 20.2527 16.8577 20.2663 16.8374 20.2663H16.4779C16.4441 20.2663 16.4101 20.2392 16.4034 20.2053C16.322 19.833 16.1118 19.7111 15.5557 19.7111C14.9319 19.7111 14.8573 19.9278 14.8573 20.0902C14.8573 20.2866 14.9454 20.3475 15.7863 20.4558C16.6204 20.5641 17.0137 20.7198 17.0137 21.302C17.0137 21.8977 16.5187 22.2362 15.6643 22.2362Z" fill="black">
</path>
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<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
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<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<button aria-controls="select-145-menu" aria-describedby="select-145-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-146" type="button" value="Node.js">
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<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"C"}
</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: <value1>, ... }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, construct a filter using the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-csharp-driver/2.10/apidocs/html/Overload_MongoDB_Driver_FilterDefinitionBuilder_1_Eq.htm" rel="noopener noreferrer">
<span>
Eq
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method:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">Builders</span><<span class="lg-highlight-title lg-highlight-class">BsonDocument</span>>.<span class="lg-highlight-property">Filter</span>.<span class="lg-highlight-title lg-highlight-class">Eq</span>(<field>, <value>);</td></tr></tbody></table></code></pre>
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To specify equality conditions, use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/model/Filters.html#eq-java.lang.String-TItem-" rel="noopener noreferrer">
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com.mongodb.client.model.Filters.eq
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method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">eq</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use the
<code class="leafygreen-ui-1l06pbn">
com.mongodb.client.model.Filters.eq_
</code>
method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
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{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(eq(<field1>, <value1>), eq(<field2>, <value2>) ...)","programmingLanguage":"Java"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">eq</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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Node.js
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To specify equality conditions, use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/4.11/apidocs/mongodb-driver-core/com/mongodb/client/model/Filters.html#eq(java.lang.String,TItem)" rel="noopener noreferrer">
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Filters.eq()
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<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
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method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">eq</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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Node.js
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<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: <value1>, ... }</td></tr></tbody></table></code></pre>
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<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
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<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<button aria-controls="select-166-menu" aria-describedby="select-166-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-167" type="button" value="Node.js">
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<div aria-labelledby="_q0yh2q5bu" class="leafygreen-ui-38lglc" id="_c12wd0jo6" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field> => <value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1> => <value1>, ... }","programmingLanguage":"Perl"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-169-menu" aria-describedby="select-169-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-170" type="button" value="Node.js">
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<div class="leafygreen-ui-obh8q1">
<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
</div>
</div>
<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
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</path>
</svg>
</div>
</button>
<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
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<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
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</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<div>
<div aria-labelledby="_h6lcii0bl" class="leafygreen-ui-38lglc" id="_8zrukr3wt" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field> => <value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"[ <field1> => <value1>, ... ]","programmingLanguage":"PHP"}
</script>
<div class="css-16lmvu9">
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[ <field1> => <value1>, ... ]</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
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<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
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<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
</path>
</svg>
</div>
</button>
<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</button>
</div>
</div>
</div>
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</div>
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</div>
<div>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"Python"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: <value1>, ... }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-175-menu" aria-describedby="select-175-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-176" type="button" value="Node.js">
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</div>
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<div class="leafygreen-ui-obh8q1">
<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
</div>
</div>
<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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</svg>
</div>
</button>
<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
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<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</div>
<div>
<div aria-labelledby="_b7zutj8xt" class="leafygreen-ui-38lglc" id="_nkwp2itcz" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field> => <value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1> => <value1>, ... }","programmingLanguage":"Ruby"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-178-menu" aria-describedby="select-178-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-179" type="button" value="Node.js">
<div class="leafygreen-ui-v038xi">
</div>
<div class="leafygreen-ui-16tr4y">
<svg aria-hidden="true" class="leafygreen-ui-18si895" fill="none" role="presentation" viewbox="0 0 30 30" xmlns="http://www.w3.org/2000/svg">
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<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use the
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com.mongodb.client.model.Filters.eq_
</code>
method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">equal</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">equal</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
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query operators
</a>
to specify
conditions in the following form:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <!-- -->{ <<!-- -->operator1<!-- -->><!-- -->: <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <!-- -->{ <<!-- -->operator1<!-- -->><!-- -->: <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: { <operator1>: <value1> }, ... }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
In addition to the equality filter, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-csharp-driver/2.10/apidocs/html/T_MongoDB_Driver_FilterDefinitionBuilder_1.htm" rel="noopener noreferrer">
<span>
FilterDefinitionBuilder
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
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</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
methods to create a filter document. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"var builder = Builders<bsondocument>.Filter;\nbuilder.And(builder.Eq(<field1>, <value1>), builder.Lt(<field2>, <value2>));","programmingLanguage":"C#"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> builder = <span class="lg-highlight-title lg-highlight-class">Builders</span><<span class="lg-highlight-title lg-highlight-class">BsonDocument</span>>.<span class="lg-highlight-property">Filter</span>;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">builder.<span class="lg-highlight-title lg-highlight-class">And</span>(builder.<span class="lg-highlight-title lg-highlight-class">Eq</span>(<field1>, <value1>), builder.<span class="lg-highlight-title lg-highlight-class">Lt</span>(<field2>, <value2>));</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/model/Filters.html" rel="noopener noreferrer">
<span>
com.mongodb.client.model.Filters
</span>
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</path>
</svg>
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helper methods to
facilitate the creation of filter documents. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(gte(<field1>, <value1>), lt(<field2>, <value2>), eq(<field3>, <value3>))","programmingLanguage":"Java"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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Node.js
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/model/Filters.html" rel="noopener noreferrer">
<span>
com.mongodb.client.model.Filters
</span>
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helper methods to
facilitate the creation of filter documents. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(gte(<field1>, <value1>), lt(<field2>, <value2>), eq(<field3>, <value3>))","programmingLanguage":"Java"}
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<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/4.11/apidocs/mongodb-driver-core/com/mongodb/client/model/Filters.html" rel="noopener noreferrer">
<span>
com.mongodb.client.model.Filters
</span>
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</a>
helper methods to
facilitate the creation of filter documents. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(gte(<field1>, <value1>), lt(<field2>, <value2>), eq(<field3>, <value3>))","programmingLanguage":"Kotlin"}
</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: { <operator1>: <value1> }, ... }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <!-- -->{ <<!-- -->operator1<!-- -->><!-- -->: <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <!-- -->{ <<!-- -->operator1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }<!-- --><!-- --></td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[ <field1> => [ <operator1> => <value1> ], ... ]</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: { <operator1>: <value1> }, ... }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1> => { <operator1> => <value1> }, ... }","programmingLanguage":"Ruby"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <!-- -->{ <<!-- -->operator1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }<!-- --><!-- --></td></tr></tbody></table></code></pre>
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In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<code class="leafygreen-ui-1l06pbn">
com.mongodb.client.model.Filters_
</code>
helper methods to
facilitate the creation of filter documents. For example:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">equal</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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Node.js
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<p class="leafygreen-ui-1kp3ins">
To delete all documents that match a deletion criteria, pass a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
filter
</a>
parameter to the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.deleteMany/#mongodb-method-db.collection.deleteMany">
<code class="leafygreen-ui-1l06pbn">
deleteMany()
</code>
</a>
method.
</p>
<p class="leafygreen-ui-1kp3ins">
The following example removes all documents from the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection where the
<code class="leafygreen-ui-1l06pbn">
status
</code>
field equals
<code class="leafygreen-ui-1l06pbn">
"A"
</code>
:
</p>
</div>
</div>
</div>
<div>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
You can specify criteria, or filters, that identify the documents to
delete. The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
filters
</a>
use the same syntax
as read operations.
</p>
<div aria-hidden="true">
</div>
<div class="leafygreen-ui-f2qztv" data-lgid="lg-tabs">
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MongoDB Shell
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Compass
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C
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C#
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Java (Async)
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Java (Sync)
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Kotlin (Coroutine)
</div>
</button>
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Motor
</div>
</button>
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Node.js
</div>
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Perl
</div>
</button>
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PHP
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Python
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Ruby
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</button>
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Scala
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<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-obh8q1">
<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
</div>
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<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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</svg>
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</button>
<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
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<div>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-229-menu" aria-describedby="select-229-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-230" type="button" value="Node.js">
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<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
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<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"C"}
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<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: <value1>, ... }</td></tr></tbody></table></code></pre>
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<button aria-controls="select-232-menu" aria-describedby="select-232-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-233" type="button" value="Node.js">
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To specify equality conditions, construct a filter using the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-csharp-driver/2.10/apidocs/html/Overload_MongoDB_Driver_FilterDefinitionBuilder_1_Eq.htm" rel="noopener noreferrer">
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Eq
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method:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">Builders</span><<span class="lg-highlight-title lg-highlight-class">BsonDocument</span>>.<span class="lg-highlight-property">Filter</span>.<span class="lg-highlight-title lg-highlight-class">Eq</span>(<field>, <value>);</td></tr></tbody></table></code></pre>
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Node.js
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To specify equality conditions, use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/model/Filters.html#eq-java.lang.String-TItem-" rel="noopener noreferrer">
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com.mongodb.client.model.Filters.eq
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<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
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</a>
method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">eq</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use the
<code class="leafygreen-ui-1l06pbn">
com.mongodb.client.model.Filters.eq_
</code>
method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">eq</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/4.11/apidocs/mongodb-driver-core/com/mongodb/client/model/Filters.html#eq(java.lang.String,TItem)" rel="noopener noreferrer">
<span>
Filters.eq()
</span>
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<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(eq(<field1>, <value1>), eq(<field2>, <value2>) ...)","programmingLanguage":"Kotlin"}
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<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">eq</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
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<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-244-menu" aria-describedby="select-244-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-245" type="button" value="Node.js">
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Node.js
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<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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</svg>
</div>
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<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"Python"}
</script>
<div class="css-16lmvu9">
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<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: <value1>, ... }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-247-menu" aria-describedby="select-247-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-248" type="button" value="Node.js">
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<div class="leafygreen-ui-obh8q1">
<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
</div>
</div>
<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
</path>
</svg>
</div>
</button>
<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
</div>
</div>
</div>
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<div>
<div aria-labelledby="_6571vqtiy" class="" id="_e2eq17myz" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-250-menu" aria-describedby="select-250-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-251" type="button" value="Node.js">
<div class="leafygreen-ui-v038xi">
</div>
<div class="leafygreen-ui-16tr4y">
<svg aria-hidden="true" class="leafygreen-ui-18si895" fill="none" role="presentation" viewbox="0 0 30 30" xmlns="http://www.w3.org/2000/svg">
<g clip-path="url(#clip0_2131_12968)">
<mask height="19" id="mask0_2131_12968" maskunits="userSpaceOnUse" width="30" x="0" y="6">
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<g mask="url(#mask0_2131_12968)">
<mask height="19" id="mask1_2131_12968" maskunits="userSpaceOnUse" width="30" x="0" y="6">
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<div class="leafygreen-ui-obh8q1">
<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
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<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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</svg>
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</button>
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<div>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field> => <value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1> => <value1>, ... }","programmingLanguage":"Perl"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-253-menu" aria-describedby="select-253-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-254" type="button" value="Node.js">
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</div>
<div class="leafygreen-ui-16tr4y">
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<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
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<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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<div>
<div aria-labelledby="_h3dx4p773" class="leafygreen-ui-38lglc" id="_d75e4iv1m" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field> => <value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"[ <field1> => <value1>, ... ]","programmingLanguage":"PHP"}
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<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[ <field1> => <value1>, ... ]</td></tr></tbody></table></code></pre>
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<button aria-controls="select-256-menu" aria-describedby="select-256-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-257" type="button" value="Node.js">
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<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: <value1>, ... }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field> => <value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1> => <value1>, ... }","programmingLanguage":"Ruby"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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Node.js
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</svg>
</div>
</button>
<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
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<div>
<div aria-labelledby="_83occghde" class="leafygreen-ui-38lglc" id="_0ovzie1b7" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use the
<code class="leafygreen-ui-1l06pbn">
com.mongodb.client.model.Filters.eq_
</code>
method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(equal(<field1>, <value1>), equal(<field2>, <value2>) ...)","programmingLanguage":"Scala"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">equal</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">equal</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-265-menu" aria-describedby="select-265-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-266" type="button" value="Node.js">
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</div>
<div class="leafygreen-ui-16tr4y">
<svg aria-hidden="true" class="leafygreen-ui-18si895" fill="none" role="presentation" viewbox="0 0 30 30" xmlns="http://www.w3.org/2000/svg">
<g clip-path="url(#clip0_2131_12968)">
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A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
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can
use the
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query operators
</a>
to specify
conditions in the following form:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <!-- -->{ <<!-- -->operator1<!-- -->><!-- -->: <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <!-- -->{ <<!-- -->operator1<!-- -->><!-- -->: <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
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In addition to the equality filter, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-csharp-driver/2.10/apidocs/html/T_MongoDB_Driver_FilterDefinitionBuilder_1.htm" rel="noopener noreferrer">
<span>
FilterDefinitionBuilder
</span>
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methods to create a filter document. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"var builder = Builders<bsondocument>.Filter;\nbuilder.And(builder.Eq(<field1>, <value1>), builder.Lt(<field2>, <value2>));","programmingLanguage":"C#"}
</script>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> builder = <span class="lg-highlight-title lg-highlight-class">Builders</span><<span class="lg-highlight-title lg-highlight-class">BsonDocument</span>>.<span class="lg-highlight-property">Filter</span>;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">builder.<span class="lg-highlight-title lg-highlight-class">And</span>(builder.<span class="lg-highlight-title lg-highlight-class">Eq</span>(<field1>, <value1>), builder.<span class="lg-highlight-title lg-highlight-class">Lt</span>(<field2>, <value2>));</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/model/Filters.html" rel="noopener noreferrer">
<span>
com.mongodb.client.model.Filters
</span>
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<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
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</a>
helper methods to
facilitate the creation of filter documents. For example:
</p>
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{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(gte(<field1>, <value1>), lt(<field2>, <value2>), eq(<field3>, <value3>))","programmingLanguage":"Java"}
</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/model/Filters.html" rel="noopener noreferrer">
<span>
com.mongodb.client.model.Filters
</span>
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<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
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</a>
helper methods to
facilitate the creation of filter documents. For example:
</p>
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{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(gte(<field1>, <value1>), lt(<field2>, <value2>), eq(<field3>, <value3>))","programmingLanguage":"Java"}
</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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Node.js
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<p class="leafygreen-ui-1kp3ins">
In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/4.11/apidocs/mongodb-driver-core/com/mongodb/client/model/Filters.html" rel="noopener noreferrer">
<span>
com.mongodb.client.model.Filters
</span>
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<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
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</a>
helper methods to
facilitate the creation of filter documents. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(gte(<field1>, <value1>), lt(<field2>, <value2>), eq(<field3>, <value3>))","programmingLanguage":"Kotlin"}
</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: { <operator1>: <value1> }, ... }","programmingLanguage":"JavaScript"}
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <!-- -->{ <<!-- -->operator1<!-- -->><!-- -->: <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
<script class="structured_data" type="application/ld+json">
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <!-- -->{ <<!-- -->operator1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }<!-- --><!-- --></td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"[ <field1> => [ <operator1> => <value1> ], ... ]","programmingLanguage":"PHP"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[ <field1> => [ <operator1> => <value1> ], ... ]</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: { <operator1>: <value1> }, ... }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <!-- -->{ <<!-- -->operator1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }<!-- --><!-- --></td></tr></tbody></table></code></pre>
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In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<code class="leafygreen-ui-1l06pbn">
com.mongodb.client.model.Filters_
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helper methods to
facilitate the creation of filter documents. For example:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">equal</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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<path d="M14.136 15.8715C14.2187 15.8231 14.2933 15.7327 14.2933 15.6236L11.1154 10.1879C11.0326 10.1741 10.943 10.181 10.8671 10.2293L7.9707 11.8985L11.0947 17.5958C11.1361 17.5889 11.1843 17.5751 11.2257 17.5544L14.136 15.8715Z" fill="url(#:r28u:paint2)">
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<div class="leafygreen-ui-obh8q1">
<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
</div>
</div>
<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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</svg>
</div>
</button>
<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
</div>
</div>
</div>
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To delete all documents that match a deletion criteria, pass the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongoc.org/libmongoc/current/mongoc_collection_t.html" rel="noopener noreferrer">
<span>
mongoc_collection_t
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
and a
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongoc.org/libbson/current/bson_t.html" rel="noopener noreferrer">
<span>
bson_t
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
that matches the documents to be deleted to the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongoc.org/libmongoc/current/mongoc_collection_delete_many.html" rel="noopener noreferrer">
<span>
mongoc_collection_delete_many
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method.
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_frz86a8km" class="leafygreen-ui-38lglc" id="_hgg8bwtyt" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
You can specify criteria, or filters, that identify the documents to
delete. The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
filters
</a>
use the same syntax
as read operations.
</p>
<div aria-hidden="true">
</div>
<div class="leafygreen-ui-f2qztv" data-lgid="lg-tabs">
<div class="leafygreen-ui-jp7pox" id="tabs-15">
<div aria-label="Tabs to describe usage of drivers" aria-orientation="horizontal" class="leafygreen-ui-m8p1vb lg-ui-tab-list-0000" data-lgid="lg-tabs-tab_list" role="tablist">
<button aria-controls="_ibkjpppot" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_s1yn39g5w" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
MongoDB Shell
</div>
</button>
<button aria-controls="_xdwt263zl" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_w47ic575c" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Compass
</div>
</button>
<button aria-controls="_b9o98ff84" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_huuny4qyj" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
C
</div>
</button>
<button aria-controls="_yhdgt3nlm" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_kw2cbqbqy" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
C#
</div>
</button>
<button aria-controls="_o8udow9r4" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_x4bgnaqpo" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Java (Async)
</div>
</button>
<button aria-controls="_79h78okm8" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_e7b5m8ymf" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Java (Sync)
</div>
</button>
<button aria-controls="_yy207sk6l" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_qoiinfgbf" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Kotlin (Coroutine)
</div>
</button>
<button aria-controls="_o4xfm2oin" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_abnjdb045" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Motor
</div>
</button>
<button aria-controls="_069w1as13" aria-selected="true" class="leafygreen-ui-1l773z1" data-text="" id="_n2weevqkh" name="" role="tab" tabindex="0">
<div class="leafygreen-ui-1nxuzmg">
Node.js
</div>
</button>
<button aria-controls="_rn8bfypnl" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_6wlkygdiz" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Perl
</div>
</button>
<button aria-controls="_jvofl1zib" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_n77zpfq2k" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
PHP
</div>
</button>
<button aria-controls="_99y6r06az" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_8ra1dwg2g" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Python
</div>
</button>
<button aria-controls="_eo2pfizb0" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_9yywuycpu" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Ruby
</div>
</button>
<button aria-controls="_w6z1gq80c" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_dr1roapo6" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Scala
</div>
</button>
</div>
<div class="leafygreen-ui-ov1ktg">
<div class="leafygreen-ui-1sg2lsz">
</div>
</div>
</div>
<div class="lg-ui-tab-panels-0000" data-lgid="lg-tabs-tab_panels">
<div>
<div aria-labelledby="_sbtm0w5yi" class="leafygreen-ui-38lglc" id="_p8a3z4kgw" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-310-menu" aria-describedby="select-310-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-311" type="button" value="Node.js">
<div class="leafygreen-ui-v038xi">
</div>
<div class="leafygreen-ui-16tr4y">
<svg aria-hidden="true" class="leafygreen-ui-18si895" fill="none" role="presentation" viewbox="0 0 30 30" xmlns="http://www.w3.org/2000/svg">
<g clip-path="url(#clip0_2131_12968)">
<mask height="19" id="mask0_2131_12968" maskunits="userSpaceOnUse" width="30" x="0" y="6">
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</path>
</mask>
<g mask="url(#mask0_2131_12968)">
<mask height="19" id="mask1_2131_12968" maskunits="userSpaceOnUse" width="30" x="0" y="6">
<path d="M30 6.04395H0V24.3825H30V6.04395Z" fill="white">
</path>
</mask>
<g mask="url(#mask1_2131_12968)">
<path d="M14.8241 24.3823C14.7224 24.3823 14.6274 24.3552 14.5393 24.3078L13.6374 23.7731C13.5018 23.6986 13.5696 23.6715 13.6103 23.658C13.7934 23.597 13.8273 23.5835 14.0172 23.4751C14.0375 23.4616 14.0646 23.4684 14.085 23.4819L14.7767 23.8949C14.8038 23.9084 14.8377 23.9084 14.858 23.8949L17.5637 22.3311C17.5909 22.3176 17.6044 22.2905 17.6044 22.2567V19.136C17.6044 19.1021 17.5909 19.075 17.5637 19.0615L14.858 17.5045C14.8309 17.4909 14.797 17.4909 14.7767 17.5045L12.071 19.0615C12.0439 19.075 12.0302 19.1089 12.0302 19.136V22.2567C12.0302 22.2838 12.0439 22.3176 12.071 22.3311L12.8101 22.7576C13.2102 22.9607 13.4611 22.7237 13.4611 22.4868V19.4067C13.4611 19.3661 13.495 19.3255 13.5425 19.3255H13.8884C13.929 19.3255 13.9697 19.3593 13.9697 19.4067V22.4868C13.9697 23.0217 13.6781 23.333 13.1695 23.333C13.0136 23.333 12.8915 23.333 12.5457 23.1638L11.8336 22.7576C11.6574 22.6561 11.5488 22.4665 11.5488 22.2635V19.1427C11.5488 18.9396 11.6574 18.7501 11.8336 18.6485L14.5393 17.0848C14.7089 16.99 14.9394 16.99 15.109 17.0848L17.8146 18.6485C17.9909 18.7501 18.0995 18.9396 18.0995 19.1427V22.2635C18.0995 22.4665 17.9909 22.6561 17.8146 22.7576L15.109 24.3214C15.0276 24.3552 14.9259 24.3823 14.8241 24.3823Z" fill="black">
</path>
<path d="M15.6643 22.2362C14.4775 22.2362 14.2334 21.6946 14.2334 21.2343C14.2334 21.1936 14.2673 21.153 14.3147 21.153H14.6674C14.7081 21.153 14.742 21.1801 14.742 21.2207C14.7963 21.5795 14.9522 21.7555 15.671 21.7555C16.2407 21.7555 16.4847 21.6269 16.4847 21.3223C16.4847 21.1462 16.4169 21.0177 15.5286 20.9297C14.7895 20.8552 14.3284 20.6928 14.3284 20.1038C14.3284 19.5555 14.7895 19.2305 15.5625 19.2305C16.4305 19.2305 16.8577 19.5284 16.912 20.1782C16.912 20.1986 16.9052 20.2189 16.8916 20.2392C16.8781 20.2527 16.8577 20.2663 16.8374 20.2663H16.4779C16.4441 20.2663 16.4101 20.2392 16.4034 20.2053C16.322 19.833 16.1118 19.7111 15.5557 19.7111C14.9319 19.7111 14.8573 19.9278 14.8573 20.0902C14.8573 20.2866 14.9454 20.3475 15.7863 20.4558C16.6204 20.5641 17.0137 20.7198 17.0137 21.302C17.0137 21.8977 16.5187 22.2362 15.6643 22.2362Z" fill="black">
</path>
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<div class="leafygreen-ui-obh8q1">
<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
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<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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</svg>
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</button>
<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
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<div>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-313-menu" aria-describedby="select-313-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-314" type="button" value="Node.js">
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Node.js
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
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<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
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To specify equality conditions, construct a filter using the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-csharp-driver/2.10/apidocs/html/Overload_MongoDB_Driver_FilterDefinitionBuilder_1_Eq.htm" rel="noopener noreferrer">
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Eq
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method:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">Builders</span><<span class="lg-highlight-title lg-highlight-class">BsonDocument</span>>.<span class="lg-highlight-property">Filter</span>.<span class="lg-highlight-title lg-highlight-class">Eq</span>(<field>, <value>);</td></tr></tbody></table></code></pre>
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</button>
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</div>
</div>
</div>
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</div>
<div>
<div aria-labelledby="_8prvy6uj6" class="leafygreen-ui-38lglc" id="_aeuz798h7" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/model/Filters.html#eq-java.lang.String-TItem-" rel="noopener noreferrer">
<span>
com.mongodb.client.model.Filters.eq
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(eq(<field1>, <value1>), eq(<field2>, <value2>) ...)","programmingLanguage":"Java"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">eq</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-322-menu" aria-describedby="select-322-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-323" type="button" value="Node.js">
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<path d="M14.1432 11.9059L11.2261 10.2298C11.1985 10.216 11.164 10.2022 11.1365 10.1953L7.875 15.7825C7.90258 15.817 7.94609 15.8673 7.98056 15.888L10.8813 17.548C10.9641 17.5963 11.0606 17.6101 11.1503 17.5825L14.219 11.968C14.1983 11.9404 14.1708 11.9197 14.1432 11.9059Z" fill="black">
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<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
</div>
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<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
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<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use the
<code class="leafygreen-ui-1l06pbn">
com.mongodb.client.model.Filters.eq_
</code>
method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(eq(<field1>, <value1>), eq(<field2>, <value2>) ...)","programmingLanguage":"Java"}
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<div class="css-16lmvu9">
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">eq</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/4.11/apidocs/mongodb-driver-core/com/mongodb/client/model/Filters.html#eq(java.lang.String,TItem)" rel="noopener noreferrer">
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Filters.eq()
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<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
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method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">eq</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
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<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"Python"}
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<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: <value1>, ... }</td></tr></tbody></table></code></pre>
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<button aria-controls="select-331-menu" aria-describedby="select-331-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-332" type="button" value="Node.js">
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<div class="leafygreen-ui-obh8q1">
<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
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<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
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<div>
<div aria-labelledby="_2tjpk3udi" class="" id="_s0bltdp5a" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-334-menu" aria-describedby="select-334-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-335" type="button" value="Node.js">
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Node.js
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field> => <value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1> => <value1>, ... }","programmingLanguage":"Perl"}
</script>
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<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field> => <value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"[ <field1> => <value1>, ... ]","programmingLanguage":"PHP"}
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<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[ <field1> => <value1>, ... ]</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-148abs6">
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<button aria-controls="select-340-menu" aria-describedby="select-340-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-341" type="button" value="Node.js">
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<div class="leafygreen-ui-obh8q1">
<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
</div>
</div>
<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
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</path>
</svg>
</div>
</button>
<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
</div>
</div>
</div>
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
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</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<div>
<div aria-labelledby="_3s4ad5aaq" class="leafygreen-ui-38lglc" id="_5nexvjcxf" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"Python"}
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<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: <value1>, ... }</td></tr></tbody></table></code></pre>
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<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
</div>
</div>
<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
</div>
</div>
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</div>
<div>
<div aria-labelledby="_3pozi52m7" class="leafygreen-ui-38lglc" id="_t5xg3wy0o" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field> => <value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1> => <value1>, ... }","programmingLanguage":"Ruby"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-346-menu" aria-describedby="select-346-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-347" type="button" value="Node.js">
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</div>
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Node.js
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<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use the
<code class="leafygreen-ui-1l06pbn">
com.mongodb.client.model.Filters.eq_
</code>
method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">equal</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">equal</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
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query operators
</a>
to specify
conditions in the following form:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <!-- -->{ <<!-- -->operator1<!-- -->><!-- -->: <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <!-- -->{ <<!-- -->operator1<!-- -->><!-- -->: <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
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query operators
</a>
to specify
conditions in the following form:
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<p class="leafygreen-ui-1kp3ins">
In addition to the equality filter, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-csharp-driver/2.10/apidocs/html/T_MongoDB_Driver_FilterDefinitionBuilder_1.htm" rel="noopener noreferrer">
<span>
FilterDefinitionBuilder
</span>
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methods to create a filter document. For example:
</p>
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{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"var builder = Builders<bsondocument>.Filter;\nbuilder.And(builder.Eq(<field1>, <value1>), builder.Lt(<field2>, <value2>));","programmingLanguage":"C#"}
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> builder = <span class="lg-highlight-title lg-highlight-class">Builders</span><<span class="lg-highlight-title lg-highlight-class">BsonDocument</span>>.<span class="lg-highlight-property">Filter</span>;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">builder.<span class="lg-highlight-title lg-highlight-class">And</span>(builder.<span class="lg-highlight-title lg-highlight-class">Eq</span>(<field1>, <value1>), builder.<span class="lg-highlight-title lg-highlight-class">Lt</span>(<field2>, <value2>));</td></tr></tbody></table></code></pre>
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In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/model/Filters.html" rel="noopener noreferrer">
<span>
com.mongodb.client.model.Filters
</span>
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</a>
helper methods to
facilitate the creation of filter documents. For example:
</p>
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{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(gte(<field1>, <value1>), lt(<field2>, <value2>), eq(<field3>, <value3>))","programmingLanguage":"Java"}
</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/model/Filters.html" rel="noopener noreferrer">
<span>
com.mongodb.client.model.Filters
</span>
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<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
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<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
helper methods to
facilitate the creation of filter documents. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(gte(<field1>, <value1>), lt(<field2>, <value2>), eq(<field3>, <value3>))","programmingLanguage":"Java"}
</script>
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<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/4.11/apidocs/mongodb-driver-core/com/mongodb/client/model/Filters.html" rel="noopener noreferrer">
<span>
com.mongodb.client.model.Filters
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
helper methods to
facilitate the creation of filter documents. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(gte(<field1>, <value1>), lt(<field2>, <value2>), eq(<field3>, <value3>))","programmingLanguage":"Kotlin"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
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<div class="leafygreen-ui-v038xi">
</div>
<div class="leafygreen-ui-16tr4y">
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<path clip-rule="evenodd" d="M20.2551 6.06425C20.201 6.03718 20.1332 6.03718 20.0857 6.06425C20.0314 6.0981 19.9975 6.15226 19.9975 6.21318V10.6133C19.9975 10.654 19.9771 10.6946 19.9364 10.7217C19.8958 10.742 19.8551 10.742 19.8144 10.7217L19.0956 10.3087C18.9871 10.2478 18.8582 10.2478 18.7498 10.3087L15.8746 11.9673C15.766 12.0282 15.6982 12.1433 15.6982 12.2651V15.5754C15.6982 15.6973 15.766 15.8123 15.8746 15.8732L18.7498 17.5318C18.8582 17.5927 18.9871 17.5927 19.0956 17.5318L21.9708 15.8732C22.0793 15.8123 22.1471 15.6973 22.1471 15.5754V7.32338C22.1471 7.19476 22.0793 7.07968 21.9708 7.01875L20.2551 6.06425ZM19.9907 14.4855C19.9907 14.5194 19.9771 14.5464 19.9501 14.56L18.9667 15.1286C18.9397 15.1421 18.9057 15.1421 18.8786 15.1286L17.8953 14.56C17.8682 14.5464 17.8547 14.5126 17.8547 14.4855V13.3482C17.8547 13.3144 17.8682 13.2873 17.8953 13.2738L18.8786 12.7051C18.9057 12.6916 18.9397 12.6916 18.9667 12.7051L19.9501 13.2738C19.9771 13.2873 19.9907 13.3212 19.9907 13.3482V14.4855Z" fill="black" fill-rule="evenodd">
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<path clip-rule="evenodd" d="M26.7521 13.1654C26.7724 13.1519 26.7996 13.1519 26.8199 13.1654L27.3692 13.4836C27.3895 13.4971 27.4031 13.5174 27.4031 13.5445V14.1809C27.4031 14.2079 27.3895 14.2282 27.3692 14.2418L26.8199 14.5599C26.7996 14.5735 26.7724 14.5735 26.7521 14.5599L26.2028 14.2418C26.1825 14.2282 26.1689 14.2079 26.1689 14.1809V13.5445C26.1689 13.5174 26.1825 13.4971 26.2028 13.4836L26.7521 13.1654Z" fill="#5FA04E" fill-rule="evenodd">
</path>
<path d="M11.2331 10.2292C11.1227 10.1671 10.9917 10.1671 10.8814 10.2292L7.97807 11.9053C7.86772 11.9673 7.80566 12.0846 7.80566 12.2088V15.5679C7.80566 15.692 7.87462 15.8092 7.97807 15.8714L10.8814 17.5474C10.9917 17.6095 11.1227 17.6095 11.2331 17.5474L14.1364 15.8714C14.2467 15.8092 14.3088 15.692 14.3088 15.5679V12.2088C14.3088 12.0846 14.2398 11.9673 14.1364 11.9053L11.2331 10.2292Z" fill="black">
</path>
<path d="M14.1432 11.9059L11.2261 10.2298C11.1985 10.216 11.164 10.2022 11.1365 10.1953L7.875 15.7825C7.90258 15.817 7.94609 15.8673 7.98056 15.888L10.8813 17.548C10.9641 17.5963 11.0606 17.6101 11.1503 17.5825L14.219 11.968C14.1983 11.9404 14.1708 11.9197 14.1432 11.9059Z" fill="black">
</path>
<path d="M14.136 15.8715C14.2187 15.8231 14.2933 15.7327 14.2933 15.6236L11.1154 10.1879C11.0326 10.1741 10.943 10.181 10.8671 10.2293L7.9707 11.8985L11.0947 17.5958C11.1361 17.5889 11.1843 17.5751 11.2257 17.5544L14.136 15.8715Z" fill="url(#:r29j:paint2)">
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<div class="leafygreen-ui-obh8q1">
<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
</div>
</div>
<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
</path>
</svg>
</div>
</button>
<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
</div>
</div>
</div>
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<div>
<div aria-labelledby="_owiqdys3b" class="leafygreen-ui-38lglc" id="_ktnxllyrf" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: { <operator1>: <value1> }, ... }","programmingLanguage":"Python"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: { <operator1>: <value1> }, ... }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-373-menu" aria-describedby="select-373-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-374" type="button" value="Node.js">
<div class="leafygreen-ui-v038xi">
</div>
<div class="leafygreen-ui-16tr4y">
<svg aria-hidden="true" class="leafygreen-ui-18si895" fill="none" role="presentation" viewbox="0 0 30 30" xmlns="http://www.w3.org/2000/svg">
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</path>
</mask>
<g mask="url(#mask0_2131_12968)">
<mask height="19" id="mask1_2131_12968" maskunits="userSpaceOnUse" width="30" x="0" y="6">
<path d="M30 6.04395H0V24.3825H30V6.04395Z" fill="white">
</path>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <!-- -->{ <<!-- -->operator1<!-- -->><!-- -->: <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <!-- -->{ <<!-- -->operator1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }<!-- --><!-- --></td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[ <field1> => [ <operator1> => <value1> ], ... ]</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: { <operator1>: <value1> }, ... }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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<div class="leafygreen-ui-196mwvg">
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <!-- -->{ <<!-- -->operator1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }<!-- --><!-- --></td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<code class="leafygreen-ui-1l06pbn">
com.mongodb.client.model.Filters_
</code>
helper methods to
facilitate the creation of filter documents. For example:
</p>
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</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">equal</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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</path>
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</path>
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</path>
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</path>
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</path>
<path d="M14.1432 11.9059L11.2261 10.2298C11.1985 10.216 11.164 10.2022 11.1365 10.1953L7.875 15.7825C7.90258 15.817 7.94609 15.8673 7.98056 15.888L10.8813 17.548C10.9641 17.5963 11.0606 17.6101 11.1503 17.5825L14.219 11.968C14.1983 11.9404 14.1708 11.9197 14.1432 11.9059Z" fill="black">
</path>
<path d="M14.136 15.8715C14.2187 15.8231 14.2933 15.7327 14.2933 15.6236L11.1154 10.1879C11.0326 10.1741 10.943 10.181 10.8671 10.2293L7.9707 11.8985L11.0947 17.5958C11.1361 17.5889 11.1843 17.5751 11.2257 17.5544L14.136 15.8715Z" fill="url(#:r29q:paint2)">
</path>
</g>
</g>
</g>
<defs>
<lineargradient gradientunits="userSpaceOnUse" id=":r29q:paint0" x1="12.2396" x2="9.61385" y1="11.4775" y2="16.8331">
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</stop>
<stop offset="0.6367" stop-color="#3E9638">
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</lineargradient>
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</svg>
<div class="leafygreen-ui-obh8q1">
<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
</div>
</div>
<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
</path>
</svg>
</div>
</button>
<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
</div>
</div>
</div>
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To delete all documents that match a deletion criteria, pass a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
filter
</a>
parameter to the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-csharp-driver/2.10/apidocs/html/M_MongoDB_Driver_IMongoCollection_1_DeleteMany.htm" rel="noopener noreferrer">
<span>
IMongoCollection.DeleteMany()
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method.
</p>
<p class="leafygreen-ui-1kp3ins">
The following example removes all documents from the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection where the
<code class="leafygreen-ui-1l06pbn">
status
</code>
field equals
<code class="leafygreen-ui-1l06pbn">
"A"
</code>
:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_qficyuvmv" class="leafygreen-ui-38lglc" id="_2k8sbnxks" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
You can specify criteria, or filters, that identify the documents to
delete. The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
filters
</a>
use the same syntax
as read operations.
</p>
<div aria-hidden="true">
</div>
<div class="leafygreen-ui-f2qztv" data-lgid="lg-tabs">
<div class="leafygreen-ui-jp7pox" id="tabs-17">
<div aria-label="Tabs to describe usage of drivers" aria-orientation="horizontal" class="leafygreen-ui-m8p1vb lg-ui-tab-list-0000" data-lgid="lg-tabs-tab_list" role="tablist">
<button aria-controls="_iml3mkg9i" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_qwriqbbnz" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
MongoDB Shell
</div>
</button>
<button aria-controls="_yav3yyua2" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_zraj4xkkl" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Compass
</div>
</button>
<button aria-controls="_4waskhja2" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_8se6s57jg" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
C
</div>
</button>
<button aria-controls="_b3w59ck1t" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_q9ob7smck" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
C#
</div>
</button>
<button aria-controls="_a7qlk9i7r" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_dguqanb36" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Java (Async)
</div>
</button>
<button aria-controls="_37yzj60ib" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_yywp7dz6l" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Java (Sync)
</div>
</button>
<button aria-controls="_drvh2zz7u" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_rz29btmjz" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Kotlin (Coroutine)
</div>
</button>
<button aria-controls="_ed5gcjnqj" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_qa422a7a7" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Motor
</div>
</button>
<button aria-controls="_69b8dmyuo" aria-selected="true" class="leafygreen-ui-1l773z1" data-text="" id="_1pxm7um62" name="" role="tab" tabindex="0">
<div class="leafygreen-ui-1nxuzmg">
Node.js
</div>
</button>
<button aria-controls="_mreeivkr6" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_3glanl399" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Perl
</div>
</button>
<button aria-controls="_danl89fd8" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_z4k3mjqo9" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
PHP
</div>
</button>
<button aria-controls="_eyicrmqga" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_j1aksjxs9" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Python
</div>
</button>
<button aria-controls="_moxj40xp3" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_a3emn9i4e" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Ruby
</div>
</button>
<button aria-controls="_661tyc2wr" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_9vssdyo04" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Scala
</div>
</button>
</div>
<div class="leafygreen-ui-ov1ktg">
<div class="leafygreen-ui-1sg2lsz">
</div>
</div>
</div>
<div class="lg-ui-tab-panels-0000" data-lgid="lg-tabs-tab_panels">
<div>
<div aria-labelledby="_4eb9jtzib" class="leafygreen-ui-38lglc" id="_aqtlhmql2" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-394-menu" aria-describedby="select-394-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-395" type="button" value="Node.js">
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</div>
<div class="leafygreen-ui-16tr4y">
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<path d="M14.1432 11.9059L11.2261 10.2298C11.1985 10.216 11.164 10.2022 11.1365 10.1953L7.875 15.7825C7.90258 15.817 7.94609 15.8673 7.98056 15.888L10.8813 17.548C10.9641 17.5963 11.0606 17.6101 11.1503 17.5825L14.219 11.968C14.1983 11.9404 14.1708 11.9197 14.1432 11.9059Z" fill="black">
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<div class="leafygreen-ui-obh8q1">
<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
</div>
</div>
<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
</path>
</svg>
</div>
</button>
<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
</div>
</div>
</div>
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<div>
<div aria-labelledby="_49pxtshcr" class="leafygreen-ui-38lglc" id="_0tl8gqerx" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-397-menu" aria-describedby="select-397-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-398" type="button" value="Node.js">
<div class="leafygreen-ui-v038xi">
</div>
<div class="leafygreen-ui-16tr4y">
<svg aria-hidden="true" class="leafygreen-ui-18si895" fill="none" role="presentation" viewbox="0 0 30 30" xmlns="http://www.w3.org/2000/svg">
<g clip-path="url(#clip0_2131_12968)">
<mask height="19" id="mask0_2131_12968" maskunits="userSpaceOnUse" width="30" x="0" y="6">
<path d="M30 6.04395H0V24.3825H30V6.04395Z" fill="white">
</path>
</mask>
<g mask="url(#mask0_2131_12968)">
<mask height="19" id="mask1_2131_12968" maskunits="userSpaceOnUse" width="30" x="0" y="6">
<path d="M30 6.04395H0V24.3825H30V6.04395Z" fill="white">
</path>
</mask>
<g mask="url(#mask1_2131_12968)">
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<div class="leafygreen-ui-obh8q1">
<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
</div>
</div>
<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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<div>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"C"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: <value1>, ... }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-400-menu" aria-describedby="select-400-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-401" type="button" value="Node.js">
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To specify equality conditions, construct a filter using the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-csharp-driver/2.10/apidocs/html/Overload_MongoDB_Driver_FilterDefinitionBuilder_1_Eq.htm" rel="noopener noreferrer">
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Eq
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method:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">Builders</span><<span class="lg-highlight-title lg-highlight-class">BsonDocument</span>>.<span class="lg-highlight-property">Filter</span>.<span class="lg-highlight-title lg-highlight-class">Eq</span>(<field>, <value>);</td></tr></tbody></table></code></pre>
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Node.js
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To specify equality conditions, use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/model/Filters.html#eq-java.lang.String-TItem-" rel="noopener noreferrer">
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com.mongodb.client.model.Filters.eq
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<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
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method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">eq</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use the
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com.mongodb.client.model.Filters.eq_
</code>
method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">eq</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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Node.js
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To specify equality conditions, use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/4.11/apidocs/mongodb-driver-core/com/mongodb/client/model/Filters.html#eq(java.lang.String,TItem)" rel="noopener noreferrer">
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Filters.eq()
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method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">eq</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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</div>
</div>
</div>
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</div>
<div>
<div aria-labelledby="_x60jhodc6" class="leafygreen-ui-38lglc" id="_60wc8tbdo" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"Python"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: <value1>, ... }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
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<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
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<path d="M14.1432 11.9059L11.2261 10.2298C11.1985 10.216 11.164 10.2022 11.1365 10.1953L7.875 15.7825C7.90258 15.817 7.94609 15.8673 7.98056 15.888L10.8813 17.548C10.9641 17.5963 11.0606 17.6101 11.1503 17.5825L14.219 11.968C14.1983 11.9404 14.1708 11.9197 14.1432 11.9059Z" fill="black">
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<div class="leafygreen-ui-obh8q1">
<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
</div>
</div>
<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
</path>
</svg>
</div>
</button>
<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
</div>
</div>
</div>
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<div>
<div aria-labelledby="_iku5m6ubo" class="" id="_0cqkzqtne" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-418-menu" aria-describedby="select-418-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-419" type="button" value="Node.js">
<div class="leafygreen-ui-v038xi">
</div>
<div class="leafygreen-ui-16tr4y">
<svg aria-hidden="true" class="leafygreen-ui-18si895" fill="none" role="presentation" viewbox="0 0 30 30" xmlns="http://www.w3.org/2000/svg">
<g clip-path="url(#clip0_2131_12968)">
<mask height="19" id="mask0_2131_12968" maskunits="userSpaceOnUse" width="30" x="0" y="6">
<path d="M30 6.04395H0V24.3825H30V6.04395Z" fill="white">
</path>
</mask>
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<div class="leafygreen-ui-obh8q1">
<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
</div>
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<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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<div>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field> => <value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1> => <value1>, ... }","programmingLanguage":"Perl"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-421-menu" aria-describedby="select-421-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-422" type="button" value="Node.js">
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<div class="leafygreen-ui-obh8q1">
<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
</div>
</div>
<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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</svg>
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</button>
<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
</div>
</div>
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<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
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<div>
<div aria-labelledby="_fdo8twae2" class="leafygreen-ui-38lglc" id="_5t3zgwg72" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field> => <value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"[ <field1> => <value1>, ... ]","programmingLanguage":"PHP"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[ <field1> => <value1>, ... ]</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-424-menu" aria-describedby="select-424-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-425" type="button" value="Node.js">
<div class="leafygreen-ui-v038xi">
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Node.js
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<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
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<field>:<value>
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expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field> => <value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1> => <value1>, ... }","programmingLanguage":"Ruby"}
</script>
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<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<div>
<div aria-labelledby="_ur76uasen" class="leafygreen-ui-38lglc" id="_b8dzsr6ii" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use the
<code class="leafygreen-ui-1l06pbn">
com.mongodb.client.model.Filters.eq_
</code>
method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
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:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">equal</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">equal</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <!-- -->{ <<!-- -->operator1<!-- -->><!-- -->: <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <!-- -->{ <<!-- -->operator1<!-- -->><!-- -->: <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: { <operator1>: <value1> }, ... }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
In addition to the equality filter, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-csharp-driver/2.10/apidocs/html/T_MongoDB_Driver_FilterDefinitionBuilder_1.htm" rel="noopener noreferrer">
<span>
FilterDefinitionBuilder
</span>
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methods to create a filter document. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"var builder = Builders<bsondocument>.Filter;\nbuilder.And(builder.Eq(<field1>, <value1>), builder.Lt(<field2>, <value2>));","programmingLanguage":"C#"}
</script>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> builder = <span class="lg-highlight-title lg-highlight-class">Builders</span><<span class="lg-highlight-title lg-highlight-class">BsonDocument</span>>.<span class="lg-highlight-property">Filter</span>;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">builder.<span class="lg-highlight-title lg-highlight-class">And</span>(builder.<span class="lg-highlight-title lg-highlight-class">Eq</span>(<field1>, <value1>), builder.<span class="lg-highlight-title lg-highlight-class">Lt</span>(<field2>, <value2>));</td></tr></tbody></table></code></pre>
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Node.js
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<p class="leafygreen-ui-1kp3ins">
In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/model/Filters.html" rel="noopener noreferrer">
<span>
com.mongodb.client.model.Filters
</span>
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<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
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</a>
helper methods to
facilitate the creation of filter documents. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(gte(<field1>, <value1>), lt(<field2>, <value2>), eq(<field3>, <value3>))","programmingLanguage":"Java"}
</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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Node.js
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<p class="leafygreen-ui-1kp3ins">
In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/model/Filters.html" rel="noopener noreferrer">
<span>
com.mongodb.client.model.Filters
</span>
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</a>
helper methods to
facilitate the creation of filter documents. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(gte(<field1>, <value1>), lt(<field2>, <value2>), eq(<field3>, <value3>))","programmingLanguage":"Java"}
</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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Node.js
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<p class="leafygreen-ui-1kp3ins">
In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/4.11/apidocs/mongodb-driver-core/com/mongodb/client/model/Filters.html" rel="noopener noreferrer">
<span>
com.mongodb.client.model.Filters
</span>
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</a>
helper methods to
facilitate the creation of filter documents. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(gte(<field1>, <value1>), lt(<field2>, <value2>), eq(<field3>, <value3>))","programmingLanguage":"Kotlin"}
</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
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query operators
</a>
to specify
conditions in the following form:
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <!-- -->{ <<!-- -->operator1<!-- -->><!-- -->: <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1> => { <operator1> => <value1> }, ... }","programmingLanguage":"Perl"}
</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <!-- -->{ <<!-- -->operator1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }<!-- --><!-- --></td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"[ <field1> => [ <operator1> => <value1> ], ... ]","programmingLanguage":"PHP"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[ <field1> => [ <operator1> => <value1> ], ... ]</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <!-- -->{ <<!-- -->operator1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }<!-- --><!-- --></td></tr></tbody></table></code></pre>
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In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<code class="leafygreen-ui-1l06pbn">
com.mongodb.client.model.Filters_
</code>
helper methods to
facilitate the creation of filter documents. For example:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">equal</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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Node.js
</div>
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</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To delete all documents that match a deletion criteria, pass a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
filter
</a>
parameter to the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://godoc.org/github.com/mongodb/mongo-go-driver/mongo#Collection.DeleteMany" rel="noopener noreferrer">
<span>
Collection.DeleteMany
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
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<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
function.
</p>
<p class="leafygreen-ui-1kp3ins">
The following example removes all documents from the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection where the
<code class="leafygreen-ui-1l06pbn">
status
</code>
field equals
<code class="leafygreen-ui-1l06pbn">
"A"
</code>
:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_bhormbp2p" class="leafygreen-ui-38lglc" id="_rb9f4ph6n" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
You can specify criteria, or filters, that identify the documents to
delete. The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
filters
</a>
use the same syntax
as read operations.
</p>
<div aria-hidden="true">
</div>
<div class="leafygreen-ui-f2qztv" data-lgid="lg-tabs">
<div class="leafygreen-ui-jp7pox" id="tabs-19">
<div aria-label="Tabs to describe usage of drivers" aria-orientation="horizontal" class="leafygreen-ui-m8p1vb lg-ui-tab-list-0000" data-lgid="lg-tabs-tab_list" role="tablist">
<button aria-controls="_7jfz0cdja" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_kke7entnl" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
MongoDB Shell
</div>
</button>
<button aria-controls="_pli3pv8av" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_tu4nl6yek" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Compass
</div>
</button>
<button aria-controls="_kowo9kbor" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_qwcsv8ckb" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
C
</div>
</button>
<button aria-controls="_zaixxt1jp" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_p5j5t8qwg" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
C#
</div>
</button>
<button aria-controls="_vhu3avwu5" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_yilej34qg" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Java (Async)
</div>
</button>
<button aria-controls="_jgzx06vs9" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_5ohw7fn06" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Java (Sync)
</div>
</button>
<button aria-controls="_0wwpkgivo" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_4kv06hum6" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Kotlin (Coroutine)
</div>
</button>
<button aria-controls="_bll9s0ono" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_4fc04cafx" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Motor
</div>
</button>
<button aria-controls="_wyjgy6e2x" aria-selected="true" class="leafygreen-ui-1l773z1" data-text="" id="_uhgfri7v6" name="" role="tab" tabindex="0">
<div class="leafygreen-ui-1nxuzmg">
Node.js
</div>
</button>
<button aria-controls="_covymev4b" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_apnp1bgqt" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Perl
</div>
</button>
<button aria-controls="_unp0s9zv2" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_gdkd5ruq7" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
PHP
</div>
</button>
<button aria-controls="_1wk94p9z9" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_1bmrgp8j7" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Python
</div>
</button>
<button aria-controls="_vi7mr47tr" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_aalskcfmk" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Ruby
</div>
</button>
<button aria-controls="_4g7o6dnyb" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_os8el9p0h" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Scala
</div>
</button>
</div>
<div class="leafygreen-ui-ov1ktg">
<div class="leafygreen-ui-1sg2lsz">
</div>
</div>
</div>
<div class="lg-ui-tab-panels-0000" data-lgid="lg-tabs-tab_panels">
<div>
<div aria-labelledby="_6b02j0zq3" class="leafygreen-ui-38lglc" id="_waq8te2mi" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
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<div class="leafygreen-ui-obh8q1">
<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
</div>
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<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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<div>
<div aria-labelledby="_bibygtloa" class="leafygreen-ui-38lglc" id="_tmw60id40" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-481-menu" aria-describedby="select-481-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-482" type="button" value="Node.js">
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To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"C"}
</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: <value1>, ... }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, construct a filter using the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-csharp-driver/2.10/apidocs/html/Overload_MongoDB_Driver_FilterDefinitionBuilder_1_Eq.htm" rel="noopener noreferrer">
<span>
Eq
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method:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">Builders</span><<span class="lg-highlight-title lg-highlight-class">BsonDocument</span>>.<span class="lg-highlight-property">Filter</span>.<span class="lg-highlight-title lg-highlight-class">Eq</span>(<field>, <value>);</td></tr></tbody></table></code></pre>
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To specify equality conditions, use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/model/Filters.html#eq-java.lang.String-TItem-" rel="noopener noreferrer">
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com.mongodb.client.model.Filters.eq
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method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">eq</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use the
<code class="leafygreen-ui-1l06pbn">
com.mongodb.client.model.Filters.eq_
</code>
method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
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</script>
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<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">eq</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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Node.js
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To specify equality conditions, use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/4.11/apidocs/mongodb-driver-core/com/mongodb/client/model/Filters.html#eq(java.lang.String,TItem)" rel="noopener noreferrer">
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Filters.eq()
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<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
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method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">eq</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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Node.js
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<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
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<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
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<div aria-labelledby="_r428t3w8w" class="" id="_l8jwbsg33" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-502-menu" aria-describedby="select-502-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-503" type="button" value="Node.js">
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field> => <value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1> => <value1>, ... }","programmingLanguage":"Perl"}
</script>
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<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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</button>
<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
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</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<div>
<div aria-labelledby="_60a0cmhr7" class="leafygreen-ui-38lglc" id="_wz7mx3rvk" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field> => <value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[ <field1> => <value1>, ... ]</td></tr></tbody></table></code></pre>
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Node.js
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<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: <value1>, ... }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-obh8q1">
<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
</div>
</div>
<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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</svg>
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</button>
<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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<div>
<div aria-labelledby="_7ubhre6g9" class="leafygreen-ui-38lglc" id="_azsaq0ue9" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field> => <value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1> => <value1>, ... }","programmingLanguage":"Ruby"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-514-menu" aria-describedby="select-514-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-515" type="button" value="Node.js">
<div class="leafygreen-ui-v038xi">
</div>
<div class="leafygreen-ui-16tr4y">
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<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use the
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com.mongodb.client.model.Filters.eq_
</code>
method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">equal</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">equal</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <!-- -->{ <<!-- -->operator1<!-- -->><!-- -->: <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <!-- -->{ <<!-- -->operator1<!-- -->><!-- -->: <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: { <operator1>: <value1> }, ... }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
In addition to the equality filter, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-csharp-driver/2.10/apidocs/html/T_MongoDB_Driver_FilterDefinitionBuilder_1.htm" rel="noopener noreferrer">
<span>
FilterDefinitionBuilder
</span>
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</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
methods to create a filter document. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"var builder = Builders<bsondocument>.Filter;\nbuilder.And(builder.Eq(<field1>, <value1>), builder.Lt(<field2>, <value2>));","programmingLanguage":"C#"}
</script>
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<div class="leafygreen-ui-196mwvg">
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> builder = <span class="lg-highlight-title lg-highlight-class">Builders</span><<span class="lg-highlight-title lg-highlight-class">BsonDocument</span>>.<span class="lg-highlight-property">Filter</span>;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">builder.<span class="lg-highlight-title lg-highlight-class">And</span>(builder.<span class="lg-highlight-title lg-highlight-class">Eq</span>(<field1>, <value1>), builder.<span class="lg-highlight-title lg-highlight-class">Lt</span>(<field2>, <value2>));</td></tr></tbody></table></code></pre>
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In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/model/Filters.html" rel="noopener noreferrer">
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com.mongodb.client.model.Filters
</span>
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</path>
</svg>
</a>
helper methods to
facilitate the creation of filter documents. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(gte(<field1>, <value1>), lt(<field2>, <value2>), eq(<field3>, <value3>))","programmingLanguage":"Java"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
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Node.js
</div>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/model/Filters.html" rel="noopener noreferrer">
<span>
com.mongodb.client.model.Filters
</span>
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</a>
helper methods to
facilitate the creation of filter documents. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(gte(<field1>, <value1>), lt(<field2>, <value2>), eq(<field3>, <value3>))","programmingLanguage":"Java"}
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/4.11/apidocs/mongodb-driver-core/com/mongodb/client/model/Filters.html" rel="noopener noreferrer">
<span>
com.mongodb.client.model.Filters
</span>
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<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
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</a>
helper methods to
facilitate the creation of filter documents. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(gte(<field1>, <value1>), lt(<field2>, <value2>), eq(<field3>, <value3>))","programmingLanguage":"Kotlin"}
</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: { <operator1>: <value1> }, ... }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <!-- -->{ <<!-- -->operator1<!-- -->><!-- -->: <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <!-- -->{ <<!-- -->operator1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }<!-- --><!-- --></td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[ <field1> => [ <operator1> => <value1> ], ... ]</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: { <operator1>: <value1> }, ... }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1> => { <operator1> => <value1> }, ... }","programmingLanguage":"Ruby"}
</script>
<div class="css-16lmvu9">
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <!-- -->{ <<!-- -->operator1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }<!-- --><!-- --></td></tr></tbody></table></code></pre>
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In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<code class="leafygreen-ui-1l06pbn">
com.mongodb.client.model.Filters_
</code>
helper methods to
facilitate the creation of filter documents. For example:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">equal</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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</div>
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</div>
</div>
</div>
</div>
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</div>
<p class="leafygreen-ui-1kp3ins">
To delete all documents that match a deletion criteria, pass a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
filter
</a>
parameter to the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://mongodb.github.io/mongo-java-driver-reactivestreams/1.6/javadoc/com/mongodb/reactivestreams/client/MongoCollection.html#deleteMany(org.bson.conversions.Bson)" rel="noopener noreferrer">
<span>
com.mongodb.reactivestreams.client.MongoCollection.deleteMany
</span>
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</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method.
</p>
<p class="leafygreen-ui-1kp3ins">
The following example removes all documents from the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection where the
<code class="leafygreen-ui-1l06pbn">
status
</code>
field equals
<code class="leafygreen-ui-1l06pbn">
"A"
</code>
:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_vq1skqd92" class="leafygreen-ui-38lglc" id="_ie3scavl3" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
You can specify criteria, or filters, that identify the documents to
delete. The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
filters
</a>
use the same syntax
as read operations.
</p>
<div aria-hidden="true">
</div>
<div class="leafygreen-ui-f2qztv" data-lgid="lg-tabs">
<div class="leafygreen-ui-jp7pox" id="tabs-21">
<div aria-label="Tabs to describe usage of drivers" aria-orientation="horizontal" class="leafygreen-ui-m8p1vb lg-ui-tab-list-0000" data-lgid="lg-tabs-tab_list" role="tablist">
<button aria-controls="_hv5ctmbfj" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_4bt6s34sj" name="" role="tab" tabindex="-1">
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Compass
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C#
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</button>
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Java (Sync)
</div>
</button>
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Kotlin (Coroutine)
</div>
</button>
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Motor
</div>
</button>
<button aria-controls="_2gbvj2jn3" aria-selected="true" class="leafygreen-ui-1l773z1" data-text="" id="_in4t2emmb" name="" role="tab" tabindex="0">
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Node.js
</div>
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<div class="leafygreen-ui-1nxuzmg">
Perl
</div>
</button>
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Python
</div>
</button>
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Ruby
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Scala
</div>
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</div>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-obh8q1">
<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
</div>
</div>
<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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</svg>
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<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
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<div>
<div aria-labelledby="_e4l1dzxmj" class="leafygreen-ui-38lglc" id="_49hzprbo1" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-565-menu" aria-describedby="select-565-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-566" type="button" value="Node.js">
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<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
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<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"C"}
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<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: <value1>, ... }</td></tr></tbody></table></code></pre>
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<button aria-controls="select-568-menu" aria-describedby="select-568-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-569" type="button" value="Node.js">
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To specify equality conditions, construct a filter using the
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Eq
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method:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">Builders</span><<span class="lg-highlight-title lg-highlight-class">BsonDocument</span>>.<span class="lg-highlight-property">Filter</span>.<span class="lg-highlight-title lg-highlight-class">Eq</span>(<field>, <value>);</td></tr></tbody></table></code></pre>
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Node.js
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To specify equality conditions, use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/model/Filters.html#eq-java.lang.String-TItem-" rel="noopener noreferrer">
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com.mongodb.client.model.Filters.eq
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<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
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</a>
method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">eq</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use the
<code class="leafygreen-ui-1l06pbn">
com.mongodb.client.model.Filters.eq_
</code>
method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">eq</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/4.11/apidocs/mongodb-driver-core/com/mongodb/client/model/Filters.html#eq(java.lang.String,TItem)" rel="noopener noreferrer">
<span>
Filters.eq()
</span>
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<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(eq(<field1>, <value1>), eq(<field2>, <value2>) ...)","programmingLanguage":"Kotlin"}
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<div class="leafygreen-ui-196mwvg">
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">eq</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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Node.js
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<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"Python"}
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<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: <value1>, ... }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-583-menu" aria-describedby="select-583-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-584" type="button" value="Node.js">
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<div class="leafygreen-ui-obh8q1">
<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
</div>
</div>
<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
</path>
</svg>
</div>
</button>
<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
</div>
</div>
</div>
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<div>
<div aria-labelledby="_utmxmc2ie" class="" id="_rr9z2od6z" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-586-menu" aria-describedby="select-586-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-587" type="button" value="Node.js">
<div class="leafygreen-ui-v038xi">
</div>
<div class="leafygreen-ui-16tr4y">
<svg aria-hidden="true" class="leafygreen-ui-18si895" fill="none" role="presentation" viewbox="0 0 30 30" xmlns="http://www.w3.org/2000/svg">
<g clip-path="url(#clip0_2131_12968)">
<mask height="19" id="mask0_2131_12968" maskunits="userSpaceOnUse" width="30" x="0" y="6">
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</mask>
<g mask="url(#mask0_2131_12968)">
<mask height="19" id="mask1_2131_12968" maskunits="userSpaceOnUse" width="30" x="0" y="6">
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<div class="leafygreen-ui-obh8q1">
<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
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<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field> => <value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1> => <value1>, ... }","programmingLanguage":"Perl"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-589-menu" aria-describedby="select-589-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-590" type="button" value="Node.js">
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Node.js
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field> => <value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"[ <field1> => <value1>, ... ]","programmingLanguage":"PHP"}
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<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[ <field1> => <value1>, ... ]</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: <value1>, ... }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field> => <value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1> => <value1>, ... }","programmingLanguage":"Ruby"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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Node.js
</div>
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<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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</svg>
</div>
</button>
<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
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</button>
</div>
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</div>
</div>
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</div>
<div>
<div aria-labelledby="_zztd4wxyc" class="leafygreen-ui-38lglc" id="_57h8w04z7" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use the
<code class="leafygreen-ui-1l06pbn">
com.mongodb.client.model.Filters.eq_
</code>
method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(equal(<field1>, <value1>), equal(<field2>, <value2>) ...)","programmingLanguage":"Scala"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">equal</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">equal</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-601-menu" aria-describedby="select-601-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-602" type="button" value="Node.js">
<div class="leafygreen-ui-v038xi">
</div>
<div class="leafygreen-ui-16tr4y">
<svg aria-hidden="true" class="leafygreen-ui-18si895" fill="none" role="presentation" viewbox="0 0 30 30" xmlns="http://www.w3.org/2000/svg">
<g clip-path="url(#clip0_2131_12968)">
<mask height="19" id="mask0_2131_12968" maskunits="userSpaceOnUse" width="30" x="0" y="6">
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A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <!-- -->{ <<!-- -->operator1<!-- -->><!-- -->: <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <!-- -->{ <<!-- -->operator1<!-- -->><!-- -->: <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
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<p class="leafygreen-ui-1kp3ins">
In addition to the equality filter, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-csharp-driver/2.10/apidocs/html/T_MongoDB_Driver_FilterDefinitionBuilder_1.htm" rel="noopener noreferrer">
<span>
FilterDefinitionBuilder
</span>
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methods to create a filter document. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"var builder = Builders<bsondocument>.Filter;\nbuilder.And(builder.Eq(<field1>, <value1>), builder.Lt(<field2>, <value2>));","programmingLanguage":"C#"}
</script>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> builder = <span class="lg-highlight-title lg-highlight-class">Builders</span><<span class="lg-highlight-title lg-highlight-class">BsonDocument</span>>.<span class="lg-highlight-property">Filter</span>;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">builder.<span class="lg-highlight-title lg-highlight-class">And</span>(builder.<span class="lg-highlight-title lg-highlight-class">Eq</span>(<field1>, <value1>), builder.<span class="lg-highlight-title lg-highlight-class">Lt</span>(<field2>, <value2>));</td></tr></tbody></table></code></pre>
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Node.js
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<p class="leafygreen-ui-1kp3ins">
In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/model/Filters.html" rel="noopener noreferrer">
<span>
com.mongodb.client.model.Filters
</span>
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<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
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</a>
helper methods to
facilitate the creation of filter documents. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(gte(<field1>, <value1>), lt(<field2>, <value2>), eq(<field3>, <value3>))","programmingLanguage":"Java"}
</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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Node.js
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<p class="leafygreen-ui-1kp3ins">
In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/model/Filters.html" rel="noopener noreferrer">
<span>
com.mongodb.client.model.Filters
</span>
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<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
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</a>
helper methods to
facilitate the creation of filter documents. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(gte(<field1>, <value1>), lt(<field2>, <value2>), eq(<field3>, <value3>))","programmingLanguage":"Java"}
</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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Node.js
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<p class="leafygreen-ui-1kp3ins">
In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/4.11/apidocs/mongodb-driver-core/com/mongodb/client/model/Filters.html" rel="noopener noreferrer">
<span>
com.mongodb.client.model.Filters
</span>
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<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
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</a>
helper methods to
facilitate the creation of filter documents. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(gte(<field1>, <value1>), lt(<field2>, <value2>), eq(<field3>, <value3>))","programmingLanguage":"Kotlin"}
</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <!-- -->{ <<!-- -->operator1<!-- -->><!-- -->: <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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</div>
<div>
<div aria-labelledby="_a906l12c8" class="leafygreen-ui-38lglc" id="_6n070b4yf" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1> => { <operator1> => <value1> }, ... }","programmingLanguage":"Perl"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <!-- -->{ <<!-- -->operator1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }<!-- --><!-- --></td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"[ <field1> => [ <operator1> => <value1> ], ... ]","programmingLanguage":"PHP"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[ <field1> => [ <operator1> => <value1> ], ... ]</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: { <operator1>: <value1> }, ... }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <!-- -->{ <<!-- -->operator1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }<!-- --><!-- --></td></tr></tbody></table></code></pre>
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In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<code class="leafygreen-ui-1l06pbn">
com.mongodb.client.model.Filters_
</code>
helper methods to
facilitate the creation of filter documents. For example:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">equal</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To delete all documents that match a deletion criteria, pass a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
filter
</a>
parameter to the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/MongoCollection.html#deleteMany-org.bson.conversions.Bson-" rel="noopener noreferrer">
<span>
com.mongodb.client.MongoCollection.deleteMany
</span>
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<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
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<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method.
</p>
<p class="leafygreen-ui-1kp3ins">
The following example removes all documents from the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection where the
<code class="leafygreen-ui-1l06pbn">
status
</code>
field equals
<code class="leafygreen-ui-1l06pbn">
"A"
</code>
:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_mgfrycr86" class="leafygreen-ui-38lglc" id="_20b6ha935" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
You can specify criteria, or filters, that identify the documents to
delete. The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
filters
</a>
use the same syntax
as read operations.
</p>
<div aria-hidden="true">
</div>
<div class="leafygreen-ui-f2qztv" data-lgid="lg-tabs">
<div class="leafygreen-ui-jp7pox" id="tabs-23">
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Java (Sync)
</div>
</button>
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</div>
</button>
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Motor
</div>
</button>
<button aria-controls="_43xablqd6" aria-selected="true" class="leafygreen-ui-1l773z1" data-text="" id="_1ajszvwd6" name="" role="tab" tabindex="0">
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Node.js
</div>
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<div class="leafygreen-ui-1nxuzmg">
Perl
</div>
</button>
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Python
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Scala
</div>
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</div>
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</div>
</div>
</div>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-obh8q1">
<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
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<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
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<div>
<div aria-labelledby="_pvqsrvlx0" class="leafygreen-ui-38lglc" id="_7ato3huqy" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-649-menu" aria-describedby="select-649-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-650" type="button" value="Node.js">
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To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"C"}
</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: <value1>, ... }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, construct a filter using the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-csharp-driver/2.10/apidocs/html/Overload_MongoDB_Driver_FilterDefinitionBuilder_1_Eq.htm" rel="noopener noreferrer">
<span>
Eq
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method:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">Builders</span><<span class="lg-highlight-title lg-highlight-class">BsonDocument</span>>.<span class="lg-highlight-property">Filter</span>.<span class="lg-highlight-title lg-highlight-class">Eq</span>(<field>, <value>);</td></tr></tbody></table></code></pre>
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To specify equality conditions, use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/model/Filters.html#eq-java.lang.String-TItem-" rel="noopener noreferrer">
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com.mongodb.client.model.Filters.eq
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method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">eq</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use the
<code class="leafygreen-ui-1l06pbn">
com.mongodb.client.model.Filters.eq_
</code>
method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
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</script>
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<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">eq</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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Node.js
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To specify equality conditions, use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/4.11/apidocs/mongodb-driver-core/com/mongodb/client/model/Filters.html#eq(java.lang.String,TItem)" rel="noopener noreferrer">
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Filters.eq()
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<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
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method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">eq</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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Node.js
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: <value1>, ... }</td></tr></tbody></table></code></pre>
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<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
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<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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<div aria-labelledby="_hzfouee1i" class="" id="_8bq1sw6d0" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-670-menu" aria-describedby="select-670-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-671" type="button" value="Node.js">
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field> => <value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1> => <value1>, ... }","programmingLanguage":"Perl"}
</script>
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<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
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</button>
<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
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</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<div>
<div aria-labelledby="_2ojd7fnaj" class="leafygreen-ui-38lglc" id="_rbipsao50" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field> => <value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"[ <field1> => <value1>, ... ]","programmingLanguage":"PHP"}
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<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[ <field1> => <value1>, ... ]</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
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<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
</div>
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<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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</button>
<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
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</div>
<div>
<div aria-labelledby="_rar22iv94" class="leafygreen-ui-38lglc" id="_fmye2ho3g" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"Python"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: <value1>, ... }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-679-menu" aria-describedby="select-679-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-680" type="button" value="Node.js">
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<div class="leafygreen-ui-obh8q1">
<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
</div>
</div>
<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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</svg>
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</button>
<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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<div>
<div aria-labelledby="_wgxhi2q05" class="leafygreen-ui-38lglc" id="_4uq8inzn2" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field> => <value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1> => <value1>, ... }","programmingLanguage":"Ruby"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-682-menu" aria-describedby="select-682-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-683" type="button" value="Node.js">
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</div>
<div class="leafygreen-ui-16tr4y">
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<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use the
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com.mongodb.client.model.Filters.eq_
</code>
method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">equal</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">equal</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <!-- -->{ <<!-- -->operator1<!-- -->><!-- -->: <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <!-- -->{ <<!-- -->operator1<!-- -->><!-- -->: <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: { <operator1>: <value1> }, ... }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
In addition to the equality filter, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-csharp-driver/2.10/apidocs/html/T_MongoDB_Driver_FilterDefinitionBuilder_1.htm" rel="noopener noreferrer">
<span>
FilterDefinitionBuilder
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
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</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
methods to create a filter document. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"var builder = Builders<bsondocument>.Filter;\nbuilder.And(builder.Eq(<field1>, <value1>), builder.Lt(<field2>, <value2>));","programmingLanguage":"C#"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> builder = <span class="lg-highlight-title lg-highlight-class">Builders</span><<span class="lg-highlight-title lg-highlight-class">BsonDocument</span>>.<span class="lg-highlight-property">Filter</span>;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">builder.<span class="lg-highlight-title lg-highlight-class">And</span>(builder.<span class="lg-highlight-title lg-highlight-class">Eq</span>(<field1>, <value1>), builder.<span class="lg-highlight-title lg-highlight-class">Lt</span>(<field2>, <value2>));</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/model/Filters.html" rel="noopener noreferrer">
<span>
com.mongodb.client.model.Filters
</span>
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</path>
</svg>
</a>
helper methods to
facilitate the creation of filter documents. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(gte(<field1>, <value1>), lt(<field2>, <value2>), eq(<field3>, <value3>))","programmingLanguage":"Java"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
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Node.js
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<p class="leafygreen-ui-1kp3ins">
In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/model/Filters.html" rel="noopener noreferrer">
<span>
com.mongodb.client.model.Filters
</span>
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helper methods to
facilitate the creation of filter documents. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(gte(<field1>, <value1>), lt(<field2>, <value2>), eq(<field3>, <value3>))","programmingLanguage":"Java"}
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<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/4.11/apidocs/mongodb-driver-core/com/mongodb/client/model/Filters.html" rel="noopener noreferrer">
<span>
com.mongodb.client.model.Filters
</span>
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</a>
helper methods to
facilitate the creation of filter documents. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(gte(<field1>, <value1>), lt(<field2>, <value2>), eq(<field3>, <value3>))","programmingLanguage":"Kotlin"}
</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <!-- -->{ <<!-- -->operator1<!-- -->><!-- -->: <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <!-- -->{ <<!-- -->operator1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }<!-- --><!-- --></td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[ <field1> => [ <operator1> => <value1> ], ... ]</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: { <operator1>: <value1> }, ... }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1> => { <operator1> => <value1> }, ... }","programmingLanguage":"Ruby"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <!-- -->{ <<!-- -->operator1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }<!-- --><!-- --></td></tr></tbody></table></code></pre>
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In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<code class="leafygreen-ui-1l06pbn">
com.mongodb.client.model.Filters_
</code>
helper methods to
facilitate the creation of filter documents. For example:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">equal</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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</div>
</div>
</div>
</div>
</div>
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</div>
<p class="leafygreen-ui-1kp3ins">
To delete all documents that match a deletion criteria, pass a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
filter
</a>
parameter to the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/4.11/apidocs/mongodb-driver-kotlin-coroutine/mongodb-driver-kotlin-coroutine/com.mongodb.kotlin.client.coroutine/-mongo-collection/delete-many.html" rel="noopener noreferrer">
<span>
MongoCollection.deleteMany()
</span>
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</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method.
</p>
<p class="leafygreen-ui-1kp3ins">
The following example removes all documents from the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection where the
<code class="leafygreen-ui-1l06pbn">
status
</code>
field equals
<code class="leafygreen-ui-1l06pbn">
"A"
</code>
:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_2lye7zyo6" class="leafygreen-ui-38lglc" id="_gk0dds9o2" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
You can specify criteria, or filters, that identify the documents to
delete. The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
filters
</a>
use the same syntax
as read operations.
</p>
<div aria-hidden="true">
</div>
<div class="leafygreen-ui-f2qztv" data-lgid="lg-tabs">
<div class="leafygreen-ui-jp7pox" id="tabs-25">
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Java (Sync)
</div>
</button>
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</div>
</button>
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Motor
</div>
</button>
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Node.js
</div>
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Perl
</div>
</button>
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Python
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Scala
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-obh8q1">
<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
</div>
</div>
<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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</svg>
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</button>
<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
</div>
</div>
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<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
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<div>
<div aria-labelledby="_6s2zo744g" class="leafygreen-ui-38lglc" id="_hrn6bxyih" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-733-menu" aria-describedby="select-733-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-734" type="button" value="Node.js">
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</div>
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<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
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<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
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{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"C"}
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<div class="leafygreen-ui-196mwvg">
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: <value1>, ... }</td></tr></tbody></table></code></pre>
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<button aria-controls="select-736-menu" aria-describedby="select-736-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-737" type="button" value="Node.js">
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To specify equality conditions, construct a filter using the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-csharp-driver/2.10/apidocs/html/Overload_MongoDB_Driver_FilterDefinitionBuilder_1_Eq.htm" rel="noopener noreferrer">
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Eq
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method:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">Builders</span><<span class="lg-highlight-title lg-highlight-class">BsonDocument</span>>.<span class="lg-highlight-property">Filter</span>.<span class="lg-highlight-title lg-highlight-class">Eq</span>(<field>, <value>);</td></tr></tbody></table></code></pre>
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Node.js
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To specify equality conditions, use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/model/Filters.html#eq-java.lang.String-TItem-" rel="noopener noreferrer">
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com.mongodb.client.model.Filters.eq
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<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
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method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">eq</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use the
<code class="leafygreen-ui-1l06pbn">
com.mongodb.client.model.Filters.eq_
</code>
method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">eq</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/4.11/apidocs/mongodb-driver-core/com/mongodb/client/model/Filters.html#eq(java.lang.String,TItem)" rel="noopener noreferrer">
<span>
Filters.eq()
</span>
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<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(eq(<field1>, <value1>), eq(<field2>, <value2>) ...)","programmingLanguage":"Kotlin"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">eq</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-748-menu" aria-describedby="select-748-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-749" type="button" value="Node.js">
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Node.js
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<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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</svg>
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</button>
<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
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</div>
<div>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"Python"}
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<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: <value1>, ... }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-751-menu" aria-describedby="select-751-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-752" type="button" value="Node.js">
<div class="leafygreen-ui-v038xi">
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<div class="leafygreen-ui-obh8q1">
<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
</div>
</div>
<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
</path>
</svg>
</div>
</button>
<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
</div>
</div>
</div>
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<div>
<div aria-labelledby="_dc5mf8uo2" class="" id="_k0l447ijw" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-754-menu" aria-describedby="select-754-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-755" type="button" value="Node.js">
<div class="leafygreen-ui-v038xi">
</div>
<div class="leafygreen-ui-16tr4y">
<svg aria-hidden="true" class="leafygreen-ui-18si895" fill="none" role="presentation" viewbox="0 0 30 30" xmlns="http://www.w3.org/2000/svg">
<g clip-path="url(#clip0_2131_12968)">
<mask height="19" id="mask0_2131_12968" maskunits="userSpaceOnUse" width="30" x="0" y="6">
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</mask>
<g mask="url(#mask0_2131_12968)">
<mask height="19" id="mask1_2131_12968" maskunits="userSpaceOnUse" width="30" x="0" y="6">
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</path>
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<div class="leafygreen-ui-obh8q1">
<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
</div>
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<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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</svg>
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<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
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<div>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field> => <value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1> => <value1>, ... }","programmingLanguage":"Perl"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-757-menu" aria-describedby="select-757-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-758" type="button" value="Node.js">
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</div>
<div class="leafygreen-ui-16tr4y">
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<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
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<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field> => <value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"[ <field1> => <value1>, ... ]","programmingLanguage":"PHP"}
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<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[ <field1> => <value1>, ... ]</td></tr></tbody></table></code></pre>
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<button aria-controls="select-760-menu" aria-describedby="select-760-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-761" type="button" value="Node.js">
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<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: <value1>, ... }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field> => <value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1> => <value1>, ... }","programmingLanguage":"Ruby"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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Node.js
</div>
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<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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</svg>
</div>
</button>
<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
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<div>
<div aria-labelledby="_l29i4rm02" class="leafygreen-ui-38lglc" id="_alrtza4lz" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use the
<code class="leafygreen-ui-1l06pbn">
com.mongodb.client.model.Filters.eq_
</code>
method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(equal(<field1>, <value1>), equal(<field2>, <value2>) ...)","programmingLanguage":"Scala"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">equal</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">equal</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-769-menu" aria-describedby="select-769-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-770" type="button" value="Node.js">
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</div>
<div class="leafygreen-ui-16tr4y">
<svg aria-hidden="true" class="leafygreen-ui-18si895" fill="none" role="presentation" viewbox="0 0 30 30" xmlns="http://www.w3.org/2000/svg">
<g clip-path="url(#clip0_2131_12968)">
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A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
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can
use the
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query operators
</a>
to specify
conditions in the following form:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <!-- -->{ <<!-- -->operator1<!-- -->><!-- -->: <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <!-- -->{ <<!-- -->operator1<!-- -->><!-- -->: <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: { <operator1>: <value1> }, ... }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
In addition to the equality filter, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-csharp-driver/2.10/apidocs/html/T_MongoDB_Driver_FilterDefinitionBuilder_1.htm" rel="noopener noreferrer">
<span>
FilterDefinitionBuilder
</span>
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methods to create a filter document. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"var builder = Builders<bsondocument>.Filter;\nbuilder.And(builder.Eq(<field1>, <value1>), builder.Lt(<field2>, <value2>));","programmingLanguage":"C#"}
</script>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> builder = <span class="lg-highlight-title lg-highlight-class">Builders</span><<span class="lg-highlight-title lg-highlight-class">BsonDocument</span>>.<span class="lg-highlight-property">Filter</span>;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">builder.<span class="lg-highlight-title lg-highlight-class">And</span>(builder.<span class="lg-highlight-title lg-highlight-class">Eq</span>(<field1>, <value1>), builder.<span class="lg-highlight-title lg-highlight-class">Lt</span>(<field2>, <value2>));</td></tr></tbody></table></code></pre>
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Node.js
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<p class="leafygreen-ui-1kp3ins">
In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/model/Filters.html" rel="noopener noreferrer">
<span>
com.mongodb.client.model.Filters
</span>
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<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
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</a>
helper methods to
facilitate the creation of filter documents. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(gte(<field1>, <value1>), lt(<field2>, <value2>), eq(<field3>, <value3>))","programmingLanguage":"Java"}
</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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Node.js
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<p class="leafygreen-ui-1kp3ins">
In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/model/Filters.html" rel="noopener noreferrer">
<span>
com.mongodb.client.model.Filters
</span>
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<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
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</a>
helper methods to
facilitate the creation of filter documents. For example:
</p>
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{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(gte(<field1>, <value1>), lt(<field2>, <value2>), eq(<field3>, <value3>))","programmingLanguage":"Java"}
</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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Node.js
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<p class="leafygreen-ui-1kp3ins">
In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/4.11/apidocs/mongodb-driver-core/com/mongodb/client/model/Filters.html" rel="noopener noreferrer">
<span>
com.mongodb.client.model.Filters
</span>
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</a>
helper methods to
facilitate the creation of filter documents. For example:
</p>
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{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(gte(<field1>, <value1>), lt(<field2>, <value2>), eq(<field3>, <value3>))","programmingLanguage":"Kotlin"}
</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <!-- -->{ <<!-- -->operator1<!-- -->><!-- -->: <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<div>
<div aria-labelledby="_e1wal7j97" class="leafygreen-ui-38lglc" id="_d5dprz8uc" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1> => { <operator1> => <value1> }, ... }","programmingLanguage":"Perl"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <!-- -->{ <<!-- -->operator1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }<!-- --><!-- --></td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"[ <field1> => [ <operator1> => <value1> ], ... ]","programmingLanguage":"PHP"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[ <field1> => [ <operator1> => <value1> ], ... ]</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: { <operator1>: <value1> }, ... }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <!-- -->{ <<!-- -->operator1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }<!-- --><!-- --></td></tr></tbody></table></code></pre>
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In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<code class="leafygreen-ui-1l06pbn">
com.mongodb.client.model.Filters_
</code>
helper methods to
facilitate the creation of filter documents. For example:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">equal</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To delete all documents that match a deletion criteria, pass a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
filter
</a>
parameter to the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://motor.readthedocs.io/en/stable/api-asyncio/asyncio_motor_collection.html#motor.motor_asyncio.AsyncIOMotorCollection.delete_many" rel="noopener noreferrer">
<span>
<code class="leafygreen-ui-1l06pbn">
delete_many
</code>
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
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</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method.
</p>
<p class="leafygreen-ui-1kp3ins">
The following example removes all documents from the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection where the
<code class="leafygreen-ui-1l06pbn">
status
</code>
field equals
<code class="leafygreen-ui-1l06pbn">
"A"
</code>
:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_ai6c59xql" class="" id="_0exgxfy3t" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
You can specify criteria, or filters, that identify the documents to
delete. The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
filters
</a>
use the same syntax
as read operations.
</p>
<div aria-hidden="true">
</div>
<div class="leafygreen-ui-f2qztv" data-lgid="lg-tabs">
<div class="leafygreen-ui-jp7pox" id="tabs-27">
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<button aria-controls="_d2vhh3yf1" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_6hx3oxnlg" name="" role="tab" tabindex="-1">
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Java (Sync)
</div>
</button>
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</div>
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Motor
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Node.js
</div>
</button>
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Perl
</div>
</button>
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Scala
</div>
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</div>
</div>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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Node.js
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<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-817-menu" aria-describedby="select-817-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-818" type="button" value="Node.js">
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To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"C"}
</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: <value1>, ... }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, construct a filter using the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-csharp-driver/2.10/apidocs/html/Overload_MongoDB_Driver_FilterDefinitionBuilder_1_Eq.htm" rel="noopener noreferrer">
<span>
Eq
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method:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">Builders</span><<span class="lg-highlight-title lg-highlight-class">BsonDocument</span>>.<span class="lg-highlight-property">Filter</span>.<span class="lg-highlight-title lg-highlight-class">Eq</span>(<field>, <value>);</td></tr></tbody></table></code></pre>
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To specify equality conditions, use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/model/Filters.html#eq-java.lang.String-TItem-" rel="noopener noreferrer">
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com.mongodb.client.model.Filters.eq
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method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">eq</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use the
<code class="leafygreen-ui-1l06pbn">
com.mongodb.client.model.Filters.eq_
</code>
method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
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{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(eq(<field1>, <value1>), eq(<field2>, <value2>) ...)","programmingLanguage":"Java"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">eq</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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Node.js
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To specify equality conditions, use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/4.11/apidocs/mongodb-driver-core/com/mongodb/client/model/Filters.html#eq(java.lang.String,TItem)" rel="noopener noreferrer">
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Filters.eq()
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<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
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method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">eq</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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Node.js
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<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
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<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-838-menu" aria-describedby="select-838-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-839" type="button" value="Node.js">
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<div aria-labelledby="_6bc05wgk8" class="leafygreen-ui-38lglc" id="_xeptwbf02" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field> => <value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1> => <value1>, ... }","programmingLanguage":"Perl"}
</script>
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<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
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<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
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</path>
</svg>
</div>
</button>
<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
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<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
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</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<div>
<div aria-labelledby="_4rdgh7d2o" class="leafygreen-ui-38lglc" id="_rdrs55w0p" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field> => <value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"[ <field1> => <value1>, ... ]","programmingLanguage":"PHP"}
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<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[ <field1> => <value1>, ... ]</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
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<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-844-menu" aria-describedby="select-844-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-845" type="button" value="Node.js">
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<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
</div>
</div>
<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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</svg>
</div>
</button>
<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
</div>
</div>
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<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
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<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</div>
</div>
<div>
<div aria-labelledby="_p00iiv7sb" class="leafygreen-ui-38lglc" id="_tzch3uiou" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"Python"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: <value1>, ... }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-847-menu" aria-describedby="select-847-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-848" type="button" value="Node.js">
<div class="leafygreen-ui-v038xi">
</div>
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<div class="leafygreen-ui-obh8q1">
<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
</div>
</div>
<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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</svg>
</div>
</button>
<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
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</div>
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<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</div>
<div>
<div aria-labelledby="_ywv9a4wn5" class="leafygreen-ui-38lglc" id="_ised0x8nc" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field> => <value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1> => <value1>, ... }","programmingLanguage":"Ruby"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-850-menu" aria-describedby="select-850-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-851" type="button" value="Node.js">
<div class="leafygreen-ui-v038xi">
</div>
<div class="leafygreen-ui-16tr4y">
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<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use the
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com.mongodb.client.model.Filters.eq_
</code>
method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">equal</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">equal</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <!-- -->{ <<!-- -->operator1<!-- -->><!-- -->: <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <!-- -->{ <<!-- -->operator1<!-- -->><!-- -->: <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: { <operator1>: <value1> }, ... }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
In addition to the equality filter, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-csharp-driver/2.10/apidocs/html/T_MongoDB_Driver_FilterDefinitionBuilder_1.htm" rel="noopener noreferrer">
<span>
FilterDefinitionBuilder
</span>
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</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
methods to create a filter document. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"var builder = Builders<bsondocument>.Filter;\nbuilder.And(builder.Eq(<field1>, <value1>), builder.Lt(<field2>, <value2>));","programmingLanguage":"C#"}
</script>
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<div class="leafygreen-ui-196mwvg">
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> builder = <span class="lg-highlight-title lg-highlight-class">Builders</span><<span class="lg-highlight-title lg-highlight-class">BsonDocument</span>>.<span class="lg-highlight-property">Filter</span>;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">builder.<span class="lg-highlight-title lg-highlight-class">And</span>(builder.<span class="lg-highlight-title lg-highlight-class">Eq</span>(<field1>, <value1>), builder.<span class="lg-highlight-title lg-highlight-class">Lt</span>(<field2>, <value2>));</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/model/Filters.html" rel="noopener noreferrer">
<span>
com.mongodb.client.model.Filters
</span>
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</path>
</svg>
</a>
helper methods to
facilitate the creation of filter documents. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(gte(<field1>, <value1>), lt(<field2>, <value2>), eq(<field3>, <value3>))","programmingLanguage":"Java"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-868-menu" aria-describedby="select-868-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-869" type="button" value="Node.js">
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Node.js
</div>
</div>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/model/Filters.html" rel="noopener noreferrer">
<span>
com.mongodb.client.model.Filters
</span>
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</a>
helper methods to
facilitate the creation of filter documents. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(gte(<field1>, <value1>), lt(<field2>, <value2>), eq(<field3>, <value3>))","programmingLanguage":"Java"}
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<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/4.11/apidocs/mongodb-driver-core/com/mongodb/client/model/Filters.html" rel="noopener noreferrer">
<span>
com.mongodb.client.model.Filters
</span>
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<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
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</a>
helper methods to
facilitate the creation of filter documents. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(gte(<field1>, <value1>), lt(<field2>, <value2>), eq(<field3>, <value3>))","programmingLanguage":"Kotlin"}
</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <!-- -->{ <<!-- -->operator1<!-- -->><!-- -->: <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <!-- -->{ <<!-- -->operator1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }<!-- --><!-- --></td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[ <field1> => [ <operator1> => <value1> ], ... ]</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: { <operator1>: <value1> }, ... }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1> => { <operator1> => <value1> }, ... }","programmingLanguage":"Ruby"}
</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <!-- -->{ <<!-- -->operator1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }<!-- --><!-- --></td></tr></tbody></table></code></pre>
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In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<code class="leafygreen-ui-1l06pbn">
com.mongodb.client.model.Filters_
</code>
helper methods to
facilitate the creation of filter documents. For example:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">equal</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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Node.js
</div>
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</button>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To delete all documents that match a deletion criteria, pass a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
filter
</a>
parameter to the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://mongodb.github.io/node-mongodb-native/3.6/api/Collection.html#deleteMany" rel="noopener noreferrer">
<span>
deleteMany()
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
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</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method.
</p>
<p class="leafygreen-ui-1kp3ins">
The following example removes all documents from the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection where the
<code class="leafygreen-ui-1l06pbn">
status
</code>
field equals
<code class="leafygreen-ui-1l06pbn">
"A"
</code>
:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_mx9s4any5" class="leafygreen-ui-38lglc" id="_nqlqmx8sq" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
You can specify criteria, or filters, that identify the documents to
delete. The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
filters
</a>
use the same syntax
as read operations.
</p>
<div aria-hidden="true">
</div>
<div class="leafygreen-ui-f2qztv" data-lgid="lg-tabs">
<div class="leafygreen-ui-jp7pox" id="tabs-29">
<div aria-label="Tabs to describe usage of drivers" aria-orientation="horizontal" class="leafygreen-ui-m8p1vb lg-ui-tab-list-0000" data-lgid="lg-tabs-tab_list" role="tablist">
<button aria-controls="_g5f54y5ph" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_vcawsmhjt" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
MongoDB Shell
</div>
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<div class="leafygreen-ui-1nxuzmg">
Compass
</div>
</button>
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<div class="leafygreen-ui-1nxuzmg">
C
</div>
</button>
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C#
</div>
</button>
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Java (Async)
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</button>
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<div class="leafygreen-ui-1nxuzmg">
Java (Sync)
</div>
</button>
<button aria-controls="_xi0jz11es" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_7ha72sza9" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Kotlin (Coroutine)
</div>
</button>
<button aria-controls="_lptkbjldm" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_5a384eonp" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Motor
</div>
</button>
<button aria-controls="_imj8iyms2" aria-selected="true" class="leafygreen-ui-1l773z1" data-text="" id="_qn3s34i23" name="" role="tab" tabindex="0">
<div class="leafygreen-ui-1nxuzmg">
Node.js
</div>
</button>
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<div class="leafygreen-ui-1nxuzmg">
Perl
</div>
</button>
<button aria-controls="_rq1ypsf9t" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_g5h2xf0l0" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
PHP
</div>
</button>
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<div class="leafygreen-ui-1nxuzmg">
Python
</div>
</button>
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Ruby
</div>
</button>
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Scala
</div>
</button>
</div>
<div class="leafygreen-ui-ov1ktg">
<div class="leafygreen-ui-1sg2lsz">
</div>
</div>
</div>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-obh8q1">
<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
</div>
</div>
<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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</svg>
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</button>
<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
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<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
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<div>
<div aria-labelledby="_495k92m8z" class="leafygreen-ui-38lglc" id="_1klqelecs" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-901-menu" aria-describedby="select-901-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-902" type="button" value="Node.js">
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<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
</div>
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<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"C"}
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<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: <value1>, ... }</td></tr></tbody></table></code></pre>
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<button aria-controls="select-904-menu" aria-describedby="select-904-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-905" type="button" value="Node.js">
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To specify equality conditions, construct a filter using the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-csharp-driver/2.10/apidocs/html/Overload_MongoDB_Driver_FilterDefinitionBuilder_1_Eq.htm" rel="noopener noreferrer">
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Eq
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method:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">Builders</span><<span class="lg-highlight-title lg-highlight-class">BsonDocument</span>>.<span class="lg-highlight-property">Filter</span>.<span class="lg-highlight-title lg-highlight-class">Eq</span>(<field>, <value>);</td></tr></tbody></table></code></pre>
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Node.js
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To specify equality conditions, use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/model/Filters.html#eq-java.lang.String-TItem-" rel="noopener noreferrer">
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com.mongodb.client.model.Filters.eq
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<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
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method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">eq</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use the
<code class="leafygreen-ui-1l06pbn">
com.mongodb.client.model.Filters.eq_
</code>
method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">eq</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/4.11/apidocs/mongodb-driver-core/com/mongodb/client/model/Filters.html#eq(java.lang.String,TItem)" rel="noopener noreferrer">
<span>
Filters.eq()
</span>
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<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(eq(<field1>, <value1>), eq(<field2>, <value2>) ...)","programmingLanguage":"Kotlin"}
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">eq</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-916-menu" aria-describedby="select-916-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-917" type="button" value="Node.js">
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Node.js
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<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"Python"}
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<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: <value1>, ... }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-919-menu" aria-describedby="select-919-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-920" type="button" value="Node.js">
<div class="leafygreen-ui-v038xi">
</div>
<div class="leafygreen-ui-16tr4y">
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<div class="leafygreen-ui-obh8q1">
<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
</div>
</div>
<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
</path>
</svg>
</div>
</button>
<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
</div>
</div>
</div>
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<div>
<div aria-labelledby="_o9isn5sxe" class="" id="_za8qlo5ln" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-922-menu" aria-describedby="select-922-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-923" type="button" value="Node.js">
<div class="leafygreen-ui-v038xi">
</div>
<div class="leafygreen-ui-16tr4y">
<svg aria-hidden="true" class="leafygreen-ui-18si895" fill="none" role="presentation" viewbox="0 0 30 30" xmlns="http://www.w3.org/2000/svg">
<g clip-path="url(#clip0_2131_12968)">
<mask height="19" id="mask0_2131_12968" maskunits="userSpaceOnUse" width="30" x="0" y="6">
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</path>
</mask>
<g mask="url(#mask0_2131_12968)">
<mask height="19" id="mask1_2131_12968" maskunits="userSpaceOnUse" width="30" x="0" y="6">
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<g mask="url(#mask1_2131_12968)">
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</path>
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<div class="leafygreen-ui-obh8q1">
<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
</div>
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<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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</svg>
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<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
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<div>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field> => <value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1> => <value1>, ... }","programmingLanguage":"Perl"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-925-menu" aria-describedby="select-925-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-926" type="button" value="Node.js">
<div class="leafygreen-ui-v038xi">
</div>
<div class="leafygreen-ui-16tr4y">
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<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
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<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
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<div>
<div aria-labelledby="_hxab1optk" class="leafygreen-ui-38lglc" id="_5i8i2xoch" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field> => <value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"[ <field1> => <value1>, ... ]","programmingLanguage":"PHP"}
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<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[ <field1> => <value1>, ... ]</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-928-menu" aria-describedby="select-928-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-929" type="button" value="Node.js">
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<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: <value1>, ... }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field> => <value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1> => <value1>, ... }","programmingLanguage":"Ruby"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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Node.js
</div>
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<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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</svg>
</div>
</button>
<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
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</div>
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</div>
<div>
<div aria-labelledby="_zkr63rkbh" class="leafygreen-ui-38lglc" id="_oysd3e4ey" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use the
<code class="leafygreen-ui-1l06pbn">
com.mongodb.client.model.Filters.eq_
</code>
method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(equal(<field1>, <value1>), equal(<field2>, <value2>) ...)","programmingLanguage":"Scala"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">equal</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">equal</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-937-menu" aria-describedby="select-937-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-938" type="button" value="Node.js">
<div class="leafygreen-ui-v038xi">
</div>
<div class="leafygreen-ui-16tr4y">
<svg aria-hidden="true" class="leafygreen-ui-18si895" fill="none" role="presentation" viewbox="0 0 30 30" xmlns="http://www.w3.org/2000/svg">
<g clip-path="url(#clip0_2131_12968)">
<mask height="19" id="mask0_2131_12968" maskunits="userSpaceOnUse" width="30" x="0" y="6">
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A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
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query operators
</a>
to specify
conditions in the following form:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <!-- -->{ <<!-- -->operator1<!-- -->><!-- -->: <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <!-- -->{ <<!-- -->operator1<!-- -->><!-- -->: <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
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<p class="leafygreen-ui-1kp3ins">
In addition to the equality filter, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-csharp-driver/2.10/apidocs/html/T_MongoDB_Driver_FilterDefinitionBuilder_1.htm" rel="noopener noreferrer">
<span>
FilterDefinitionBuilder
</span>
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methods to create a filter document. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"var builder = Builders<bsondocument>.Filter;\nbuilder.And(builder.Eq(<field1>, <value1>), builder.Lt(<field2>, <value2>));","programmingLanguage":"C#"}
</script>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> builder = <span class="lg-highlight-title lg-highlight-class">Builders</span><<span class="lg-highlight-title lg-highlight-class">BsonDocument</span>>.<span class="lg-highlight-property">Filter</span>;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">builder.<span class="lg-highlight-title lg-highlight-class">And</span>(builder.<span class="lg-highlight-title lg-highlight-class">Eq</span>(<field1>, <value1>), builder.<span class="lg-highlight-title lg-highlight-class">Lt</span>(<field2>, <value2>));</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/model/Filters.html" rel="noopener noreferrer">
<span>
com.mongodb.client.model.Filters
</span>
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</a>
helper methods to
facilitate the creation of filter documents. For example:
</p>
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{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(gte(<field1>, <value1>), lt(<field2>, <value2>), eq(<field3>, <value3>))","programmingLanguage":"Java"}
</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/model/Filters.html" rel="noopener noreferrer">
<span>
com.mongodb.client.model.Filters
</span>
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<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
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</a>
helper methods to
facilitate the creation of filter documents. For example:
</p>
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{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(gte(<field1>, <value1>), lt(<field2>, <value2>), eq(<field3>, <value3>))","programmingLanguage":"Java"}
</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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Node.js
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<p class="leafygreen-ui-1kp3ins">
In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/4.11/apidocs/mongodb-driver-core/com/mongodb/client/model/Filters.html" rel="noopener noreferrer">
<span>
com.mongodb.client.model.Filters
</span>
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<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
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</a>
helper methods to
facilitate the creation of filter documents. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(gte(<field1>, <value1>), lt(<field2>, <value2>), eq(<field3>, <value3>))","programmingLanguage":"Kotlin"}
</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: { <operator1>: <value1> }, ... }","programmingLanguage":"JavaScript"}
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <!-- -->{ <<!-- -->operator1<!-- -->><!-- -->: <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <!-- -->{ <<!-- -->operator1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }<!-- --><!-- --></td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"[ <field1> => [ <operator1> => <value1> ], ... ]","programmingLanguage":"PHP"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[ <field1> => [ <operator1> => <value1> ], ... ]</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: { <operator1>: <value1> }, ... }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <!-- -->{ <<!-- -->operator1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }<!-- --><!-- --></td></tr></tbody></table></code></pre>
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In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<code class="leafygreen-ui-1l06pbn">
com.mongodb.client.model.Filters_
</code>
helper methods to
facilitate the creation of filter documents. For example:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">equal</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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Node.js
</div>
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</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To delete all documents that match a deletion criteria, pass a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
filter
</a>
parameter to the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://metacpan.org/pod/MongoDB::Collection#delete_many" rel="noopener noreferrer">
<span>
delete_many()
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
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<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method.
</p>
<p class="leafygreen-ui-1kp3ins">
The following example removes all documents from the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection where the
<code class="leafygreen-ui-1l06pbn">
status
</code>
field equals
<code class="leafygreen-ui-1l06pbn">
"A"
</code>
:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_e1k03cq9y" class="leafygreen-ui-38lglc" id="_hfmuiunzl" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
You can specify criteria, or filters, that identify the documents to
delete. The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
filters
</a>
use the same syntax
as read operations.
</p>
<div aria-hidden="true">
</div>
<div class="leafygreen-ui-f2qztv" data-lgid="lg-tabs">
<div class="leafygreen-ui-jp7pox" id="tabs-31">
<div aria-label="Tabs to describe usage of drivers" aria-orientation="horizontal" class="leafygreen-ui-m8p1vb lg-ui-tab-list-0000" data-lgid="lg-tabs-tab_list" role="tablist">
<button aria-controls="_ovjdp7rbb" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_61gmek1js" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
MongoDB Shell
</div>
</button>
<button aria-controls="_l7xcrbskg" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_djz8qbrvl" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Compass
</div>
</button>
<button aria-controls="_wxvgdutt1" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_atr8q1nqx" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
C
</div>
</button>
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<div class="leafygreen-ui-1nxuzmg">
C#
</div>
</button>
<button aria-controls="_karoh87xc" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_wkf4jm7dn" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Java (Async)
</div>
</button>
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<div class="leafygreen-ui-1nxuzmg">
Java (Sync)
</div>
</button>
<button aria-controls="_h5oc26ntf" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_4ans8wurq" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Kotlin (Coroutine)
</div>
</button>
<button aria-controls="_x1tdwkhl8" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_5ochxq6m8" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Motor
</div>
</button>
<button aria-controls="_7bcagnfbk" aria-selected="true" class="leafygreen-ui-1l773z1" data-text="" id="_vwfv2numo" name="" role="tab" tabindex="0">
<div class="leafygreen-ui-1nxuzmg">
Node.js
</div>
</button>
<button aria-controls="_pkbyrc69j" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_richfay5g" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Perl
</div>
</button>
<button aria-controls="_zm44ef185" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_gv7hfv8m9" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
PHP
</div>
</button>
<button aria-controls="_l3o9t7dly" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_elskj6kwm" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Python
</div>
</button>
<button aria-controls="_xjvxb1vvz" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_3td5sskbi" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Ruby
</div>
</button>
<button aria-controls="_1ucfo5e90" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_8i2iuaxqo" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Scala
</div>
</button>
</div>
<div class="leafygreen-ui-ov1ktg">
<div class="leafygreen-ui-1sg2lsz">
</div>
</div>
</div>
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<div>
<div aria-labelledby="_rovi3a1wl" class="leafygreen-ui-38lglc" id="_secbkmtfz" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<button aria-controls="select-982-menu" aria-describedby="select-982-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-983" type="button" value="Node.js">
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<div class="leafygreen-ui-obh8q1">
<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
</div>
</div>
<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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</svg>
</div>
</button>
<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
</div>
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<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
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</div>
<div>
<div aria-labelledby="_99lyswpf2" class="leafygreen-ui-38lglc" id="_92xzg0gy8" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-985-menu" aria-describedby="select-985-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-986" type="button" value="Node.js">
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To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"C"}
</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: <value1>, ... }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, construct a filter using the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-csharp-driver/2.10/apidocs/html/Overload_MongoDB_Driver_FilterDefinitionBuilder_1_Eq.htm" rel="noopener noreferrer">
<span>
Eq
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method:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">Builders</span><<span class="lg-highlight-title lg-highlight-class">BsonDocument</span>>.<span class="lg-highlight-property">Filter</span>.<span class="lg-highlight-title lg-highlight-class">Eq</span>(<field>, <value>);</td></tr></tbody></table></code></pre>
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To specify equality conditions, use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/model/Filters.html#eq-java.lang.String-TItem-" rel="noopener noreferrer">
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com.mongodb.client.model.Filters.eq
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method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">eq</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use the
<code class="leafygreen-ui-1l06pbn">
com.mongodb.client.model.Filters.eq_
</code>
method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
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</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">eq</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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Node.js
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<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/4.11/apidocs/mongodb-driver-core/com/mongodb/client/model/Filters.html#eq(java.lang.String,TItem)" rel="noopener noreferrer">
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Filters.eq()
</span>
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<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
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method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">eq</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
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{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"Python"}
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: <value1>, ... }</td></tr></tbody></table></code></pre>
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<button aria-controls="select-1003-menu" aria-describedby="select-1003-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-1004" type="button" value="Node.js">
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<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
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<div aria-labelledby="_cw0znu7jw" class="" id="_iiiv0tad5" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-1006-menu" aria-describedby="select-1006-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-1007" type="button" value="Node.js">
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field> => <value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1> => <value1>, ... }","programmingLanguage":"Perl"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
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</svg>
<div class="leafygreen-ui-obh8q1">
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Node.js
</div>
</div>
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</svg>
</div>
</button>
<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
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<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
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</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<div>
<div aria-labelledby="_b3idjst0k" class="leafygreen-ui-38lglc" id="_r379ye0ru" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field> => <value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[ <field1> => <value1>, ... ]</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
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query filter document
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</a>
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<script class="structured_data" type="application/ld+json">
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: <value1>, ... }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-obh8q1">
<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
</div>
</div>
<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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</svg>
</div>
</button>
<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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<div>
<div aria-labelledby="_9mfjwrnxu" class="leafygreen-ui-38lglc" id="_j3wd2upg8" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field> => <value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1> => <value1>, ... }","programmingLanguage":"Ruby"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-1018-menu" aria-describedby="select-1018-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-1019" type="button" value="Node.js">
<div class="leafygreen-ui-v038xi">
</div>
<div class="leafygreen-ui-16tr4y">
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<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use the
<code class="leafygreen-ui-1l06pbn">
com.mongodb.client.model.Filters.eq_
</code>
method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">equal</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">equal</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <!-- -->{ <<!-- -->operator1<!-- -->><!-- -->: <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <!-- -->{ <<!-- -->operator1<!-- -->><!-- -->: <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: { <operator1>: <value1> }, ... }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
In addition to the equality filter, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-csharp-driver/2.10/apidocs/html/T_MongoDB_Driver_FilterDefinitionBuilder_1.htm" rel="noopener noreferrer">
<span>
FilterDefinitionBuilder
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
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</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
methods to create a filter document. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"var builder = Builders<bsondocument>.Filter;\nbuilder.And(builder.Eq(<field1>, <value1>), builder.Lt(<field2>, <value2>));","programmingLanguage":"C#"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> builder = <span class="lg-highlight-title lg-highlight-class">Builders</span><<span class="lg-highlight-title lg-highlight-class">BsonDocument</span>>.<span class="lg-highlight-property">Filter</span>;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">builder.<span class="lg-highlight-title lg-highlight-class">And</span>(builder.<span class="lg-highlight-title lg-highlight-class">Eq</span>(<field1>, <value1>), builder.<span class="lg-highlight-title lg-highlight-class">Lt</span>(<field2>, <value2>));</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/model/Filters.html" rel="noopener noreferrer">
<span>
com.mongodb.client.model.Filters
</span>
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</path>
</svg>
</a>
helper methods to
facilitate the creation of filter documents. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(gte(<field1>, <value1>), lt(<field2>, <value2>), eq(<field3>, <value3>))","programmingLanguage":"Java"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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Node.js
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/model/Filters.html" rel="noopener noreferrer">
<span>
com.mongodb.client.model.Filters
</span>
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</a>
helper methods to
facilitate the creation of filter documents. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(gte(<field1>, <value1>), lt(<field2>, <value2>), eq(<field3>, <value3>))","programmingLanguage":"Java"}
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<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/4.11/apidocs/mongodb-driver-core/com/mongodb/client/model/Filters.html" rel="noopener noreferrer">
<span>
com.mongodb.client.model.Filters
</span>
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</a>
helper methods to
facilitate the creation of filter documents. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(gte(<field1>, <value1>), lt(<field2>, <value2>), eq(<field3>, <value3>))","programmingLanguage":"Kotlin"}
</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: { <operator1>: <value1> }, ... }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <!-- -->{ <<!-- -->operator1<!-- -->><!-- -->: <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <!-- -->{ <<!-- -->operator1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }<!-- --><!-- --></td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[ <field1> => [ <operator1> => <value1> ], ... ]</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: { <operator1>: <value1> }, ... }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1> => { <operator1> => <value1> }, ... }","programmingLanguage":"Ruby"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <!-- -->{ <<!-- -->operator1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }<!-- --><!-- --></td></tr></tbody></table></code></pre>
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In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<code class="leafygreen-ui-1l06pbn">
com.mongodb.client.model.Filters_
</code>
helper methods to
facilitate the creation of filter documents. For example:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">equal</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
To delete all documents that match a deletion criteria, pass a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
filter
</a>
parameter to the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/php-library/upcoming/reference/method/MongoDBCollection-deleteMany/#mongodb-phpmethod-phpmethod.MongoDB-Collection--deleteMany--" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
deleteMany()
</code>
</span>
</a>
method.
</p>
<p class="leafygreen-ui-1kp3ins">
The following example removes all documents from the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection where the
<code class="leafygreen-ui-1l06pbn">
status
</code>
field equals
<code class="leafygreen-ui-1l06pbn">
"A"
</code>
:
</p>
</div>
</div>
</div>
<div>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
You can specify criteria, or filters, that identify the documents to
delete. The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
filters
</a>
use the same syntax
as read operations.
</p>
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</div>
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Java (Sync)
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Motor
</div>
</button>
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Node.js
</div>
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Perl
</div>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-obh8q1">
<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
</div>
</div>
<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
</path>
</svg>
</div>
</button>
<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
</div>
</div>
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<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</div>
</div>
</div>
<div>
<div aria-labelledby="_cuz0y24he" class="leafygreen-ui-38lglc" id="_ovysylx1k" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-1069-menu" aria-describedby="select-1069-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-1070" type="button" value="Node.js">
<div class="leafygreen-ui-v038xi">
</div>
<div class="leafygreen-ui-16tr4y">
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<div class="leafygreen-ui-obh8q1">
<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
</div>
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<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"C"}
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<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: <value1>, ... }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-1072-menu" aria-describedby="select-1072-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-1073" type="button" value="Node.js">
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To specify equality conditions, construct a filter using the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-csharp-driver/2.10/apidocs/html/Overload_MongoDB_Driver_FilterDefinitionBuilder_1_Eq.htm" rel="noopener noreferrer">
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Eq
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method:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">Builders</span><<span class="lg-highlight-title lg-highlight-class">BsonDocument</span>>.<span class="lg-highlight-property">Filter</span>.<span class="lg-highlight-title lg-highlight-class">Eq</span>(<field>, <value>);</td></tr></tbody></table></code></pre>
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Node.js
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To specify equality conditions, use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/model/Filters.html#eq-java.lang.String-TItem-" rel="noopener noreferrer">
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com.mongodb.client.model.Filters.eq
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<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
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method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">eq</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use the
<code class="leafygreen-ui-1l06pbn">
com.mongodb.client.model.Filters.eq_
</code>
method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">eq</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/4.11/apidocs/mongodb-driver-core/com/mongodb/client/model/Filters.html#eq(java.lang.String,TItem)" rel="noopener noreferrer">
<span>
Filters.eq()
</span>
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<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(eq(<field1>, <value1>), eq(<field2>, <value2>) ...)","programmingLanguage":"Kotlin"}
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<div class="leafygreen-ui-196mwvg">
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">eq</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-1084-menu" aria-describedby="select-1084-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-1085" type="button" value="Node.js">
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Node.js
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<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"Python"}
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<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: <value1>, ... }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-1087-menu" aria-describedby="select-1087-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-1088" type="button" value="Node.js">
<div class="leafygreen-ui-v038xi">
</div>
<div class="leafygreen-ui-16tr4y">
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<div class="leafygreen-ui-obh8q1">
<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
</div>
</div>
<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
</path>
</svg>
</div>
</button>
<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
</div>
</div>
</div>
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<div>
<div aria-labelledby="_35k517buf" class="" id="_n3uod4mr7" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-1090-menu" aria-describedby="select-1090-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-1091" type="button" value="Node.js">
<div class="leafygreen-ui-v038xi">
</div>
<div class="leafygreen-ui-16tr4y">
<svg aria-hidden="true" class="leafygreen-ui-18si895" fill="none" role="presentation" viewbox="0 0 30 30" xmlns="http://www.w3.org/2000/svg">
<g clip-path="url(#clip0_2131_12968)">
<mask height="19" id="mask0_2131_12968" maskunits="userSpaceOnUse" width="30" x="0" y="6">
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<g mask="url(#mask0_2131_12968)">
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<div class="leafygreen-ui-obh8q1">
<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
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<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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</svg>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field> => <value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1> => <value1>, ... }","programmingLanguage":"Perl"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-1093-menu" aria-describedby="select-1093-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-1094" type="button" value="Node.js">
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</div>
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<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
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<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
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<div>
<div aria-labelledby="_yaopko0tv" class="leafygreen-ui-38lglc" id="_sg56sczth" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field> => <value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"[ <field1> => <value1>, ... ]","programmingLanguage":"PHP"}
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<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[ <field1> => <value1>, ... ]</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-1096-menu" aria-describedby="select-1096-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-1097" type="button" value="Node.js">
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<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: <value1>, ... }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field> => <value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1> => <value1>, ... }","programmingLanguage":"Ruby"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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Node.js
</div>
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<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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</svg>
</div>
</button>
<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
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</div>
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<div>
<div aria-labelledby="_noshdkm0c" class="leafygreen-ui-38lglc" id="_1x8b2q6f5" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use the
<code class="leafygreen-ui-1l06pbn">
com.mongodb.client.model.Filters.eq_
</code>
method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(equal(<field1>, <value1>), equal(<field2>, <value2>) ...)","programmingLanguage":"Scala"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">equal</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">equal</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-1105-menu" aria-describedby="select-1105-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-1106" type="button" value="Node.js">
<div class="leafygreen-ui-v038xi">
</div>
<div class="leafygreen-ui-16tr4y">
<svg aria-hidden="true" class="leafygreen-ui-18si895" fill="none" role="presentation" viewbox="0 0 30 30" xmlns="http://www.w3.org/2000/svg">
<g clip-path="url(#clip0_2131_12968)">
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A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
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can
use the
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query operators
</a>
to specify
conditions in the following form:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <!-- -->{ <<!-- -->operator1<!-- -->><!-- -->: <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <!-- -->{ <<!-- -->operator1<!-- -->><!-- -->: <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
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<p class="leafygreen-ui-1kp3ins">
In addition to the equality filter, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-csharp-driver/2.10/apidocs/html/T_MongoDB_Driver_FilterDefinitionBuilder_1.htm" rel="noopener noreferrer">
<span>
FilterDefinitionBuilder
</span>
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methods to create a filter document. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"var builder = Builders<bsondocument>.Filter;\nbuilder.And(builder.Eq(<field1>, <value1>), builder.Lt(<field2>, <value2>));","programmingLanguage":"C#"}
</script>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> builder = <span class="lg-highlight-title lg-highlight-class">Builders</span><<span class="lg-highlight-title lg-highlight-class">BsonDocument</span>>.<span class="lg-highlight-property">Filter</span>;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">builder.<span class="lg-highlight-title lg-highlight-class">And</span>(builder.<span class="lg-highlight-title lg-highlight-class">Eq</span>(<field1>, <value1>), builder.<span class="lg-highlight-title lg-highlight-class">Lt</span>(<field2>, <value2>));</td></tr></tbody></table></code></pre>
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Node.js
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<p class="leafygreen-ui-1kp3ins">
In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/model/Filters.html" rel="noopener noreferrer">
<span>
com.mongodb.client.model.Filters
</span>
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<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
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</a>
helper methods to
facilitate the creation of filter documents. For example:
</p>
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{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(gte(<field1>, <value1>), lt(<field2>, <value2>), eq(<field3>, <value3>))","programmingLanguage":"Java"}
</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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Node.js
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<p class="leafygreen-ui-1kp3ins">
In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/model/Filters.html" rel="noopener noreferrer">
<span>
com.mongodb.client.model.Filters
</span>
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<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
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</a>
helper methods to
facilitate the creation of filter documents. For example:
</p>
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{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(gte(<field1>, <value1>), lt(<field2>, <value2>), eq(<field3>, <value3>))","programmingLanguage":"Java"}
</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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Node.js
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<p class="leafygreen-ui-1kp3ins">
In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/4.11/apidocs/mongodb-driver-core/com/mongodb/client/model/Filters.html" rel="noopener noreferrer">
<span>
com.mongodb.client.model.Filters
</span>
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<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
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</a>
helper methods to
facilitate the creation of filter documents. For example:
</p>
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{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(gte(<field1>, <value1>), lt(<field2>, <value2>), eq(<field3>, <value3>))","programmingLanguage":"Kotlin"}
</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: { <operator1>: <value1> }, ... }","programmingLanguage":"JavaScript"}
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <!-- -->{ <<!-- -->operator1<!-- -->><!-- -->: <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
<script class="structured_data" type="application/ld+json">
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <!-- -->{ <<!-- -->operator1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }<!-- --><!-- --></td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"[ <field1> => [ <operator1> => <value1> ], ... ]","programmingLanguage":"PHP"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[ <field1> => [ <operator1> => <value1> ], ... ]</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: { <operator1>: <value1> }, ... }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <!-- -->{ <<!-- -->operator1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }<!-- --><!-- --></td></tr></tbody></table></code></pre>
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In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<code class="leafygreen-ui-1l06pbn">
com.mongodb.client.model.Filters_
</code>
helper methods to
facilitate the creation of filter documents. For example:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">equal</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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</div>
</button>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To delete all documents that match a deletion criteria, pass a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
filter
</a>
parameter to the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://pymongo.readthedocs.io/en/stable/api/pymongo/collection.html#pymongo.collection.Collection.delete_many" rel="noopener noreferrer">
<span>
<code class="leafygreen-ui-1l06pbn">
delete_many
</code>
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
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</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method.
</p>
<p class="leafygreen-ui-1kp3ins">
The following example removes all documents from the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection where the
<code class="leafygreen-ui-1l06pbn">
status
</code>
field equals
<code class="leafygreen-ui-1l06pbn">
"A"
</code>
:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_uu618i4zx" class="leafygreen-ui-38lglc" id="_69c8qcx2v" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
You can specify criteria, or filters, that identify the documents to
delete. The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
filters
</a>
use the same syntax
as read operations.
</p>
<div aria-hidden="true">
</div>
<div class="leafygreen-ui-f2qztv" data-lgid="lg-tabs">
<div class="leafygreen-ui-jp7pox" id="tabs-35">
<div aria-label="Tabs to describe usage of drivers" aria-orientation="horizontal" class="leafygreen-ui-m8p1vb lg-ui-tab-list-0000" data-lgid="lg-tabs-tab_list" role="tablist">
<button aria-controls="_zlafdjy44" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_lp1jny7mk" name="" role="tab" tabindex="-1">
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Compass
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Java (Sync)
</div>
</button>
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</div>
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Motor
</div>
</button>
<button aria-controls="_tlvvnfatm" aria-selected="true" class="leafygreen-ui-1l773z1" data-text="" id="_inwme9zlr" name="" role="tab" tabindex="0">
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Node.js
</div>
</button>
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<div class="leafygreen-ui-1nxuzmg">
Perl
</div>
</button>
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</div>
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<div class="leafygreen-ui-1nxuzmg">
Python
</div>
</button>
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Ruby
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</button>
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Scala
</div>
</button>
</div>
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<div class="leafygreen-ui-1sg2lsz">
</div>
</div>
</div>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-obh8q1">
<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
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<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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<div>
<div aria-labelledby="_9uou0q7os" class="leafygreen-ui-38lglc" id="_w8td3jher" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-1153-menu" aria-describedby="select-1153-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-1154" type="button" value="Node.js">
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To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"C"}
</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: <value1>, ... }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, construct a filter using the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-csharp-driver/2.10/apidocs/html/Overload_MongoDB_Driver_FilterDefinitionBuilder_1_Eq.htm" rel="noopener noreferrer">
<span>
Eq
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method:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">Builders</span><<span class="lg-highlight-title lg-highlight-class">BsonDocument</span>>.<span class="lg-highlight-property">Filter</span>.<span class="lg-highlight-title lg-highlight-class">Eq</span>(<field>, <value>);</td></tr></tbody></table></code></pre>
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To specify equality conditions, use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/model/Filters.html#eq-java.lang.String-TItem-" rel="noopener noreferrer">
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com.mongodb.client.model.Filters.eq
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method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">eq</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use the
<code class="leafygreen-ui-1l06pbn">
com.mongodb.client.model.Filters.eq_
</code>
method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
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{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(eq(<field1>, <value1>), eq(<field2>, <value2>) ...)","programmingLanguage":"Java"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">eq</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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Node.js
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To specify equality conditions, use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/4.11/apidocs/mongodb-driver-core/com/mongodb/client/model/Filters.html#eq(java.lang.String,TItem)" rel="noopener noreferrer">
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Filters.eq()
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<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
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method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">eq</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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Node.js
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
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<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field> => <value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1> => <value1>, ... }","programmingLanguage":"Perl"}
</script>
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<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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</div>
</button>
<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
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</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<div>
<div aria-labelledby="_54kzi8xz6" class="leafygreen-ui-38lglc" id="_po1vv62lb" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field> => <value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[ <field1> => <value1>, ... ]</td></tr></tbody></table></code></pre>
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Node.js
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<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
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:
</a>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: <value1>, ... }</td></tr></tbody></table></code></pre>
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<button aria-controls="select-1183-menu" aria-describedby="select-1183-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-1184" type="button" value="Node.js">
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<div class="leafygreen-ui-obh8q1">
<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
</div>
</div>
<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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</svg>
</div>
</button>
<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
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<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</div>
<div>
<div aria-labelledby="_qtkos24v5" class="leafygreen-ui-38lglc" id="_prido28qr" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field> => <value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1> => <value1>, ... }","programmingLanguage":"Ruby"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-1186-menu" aria-describedby="select-1186-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-1187" type="button" value="Node.js">
<div class="leafygreen-ui-v038xi">
</div>
<div class="leafygreen-ui-16tr4y">
<svg aria-hidden="true" class="leafygreen-ui-18si895" fill="none" role="presentation" viewbox="0 0 30 30" xmlns="http://www.w3.org/2000/svg">
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Node.js
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use the
<code class="leafygreen-ui-1l06pbn">
com.mongodb.client.model.Filters.eq_
</code>
method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">equal</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">equal</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
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A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <!-- -->{ <<!-- -->operator1<!-- -->><!-- -->: <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <!-- -->{ <<!-- -->operator1<!-- -->><!-- -->: <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
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In addition to the equality filter, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-csharp-driver/2.10/apidocs/html/T_MongoDB_Driver_FilterDefinitionBuilder_1.htm" rel="noopener noreferrer">
<span>
FilterDefinitionBuilder
</span>
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methods to create a filter document. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"var builder = Builders<bsondocument>.Filter;\nbuilder.And(builder.Eq(<field1>, <value1>), builder.Lt(<field2>, <value2>));","programmingLanguage":"C#"}
</script>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> builder = <span class="lg-highlight-title lg-highlight-class">Builders</span><<span class="lg-highlight-title lg-highlight-class">BsonDocument</span>>.<span class="lg-highlight-property">Filter</span>;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">builder.<span class="lg-highlight-title lg-highlight-class">And</span>(builder.<span class="lg-highlight-title lg-highlight-class">Eq</span>(<field1>, <value1>), builder.<span class="lg-highlight-title lg-highlight-class">Lt</span>(<field2>, <value2>));</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/model/Filters.html" rel="noopener noreferrer">
<span>
com.mongodb.client.model.Filters
</span>
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<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
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<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
helper methods to
facilitate the creation of filter documents. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(gte(<field1>, <value1>), lt(<field2>, <value2>), eq(<field3>, <value3>))","programmingLanguage":"Java"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/model/Filters.html" rel="noopener noreferrer">
<span>
com.mongodb.client.model.Filters
</span>
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</path>
</svg>
</a>
helper methods to
facilitate the creation of filter documents. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(gte(<field1>, <value1>), lt(<field2>, <value2>), eq(<field3>, <value3>))","programmingLanguage":"Java"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
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<path d="M14.1432 11.9059L11.2261 10.2298C11.1985 10.216 11.164 10.2022 11.1365 10.1953L7.875 15.7825C7.90258 15.817 7.94609 15.8673 7.98056 15.888L10.8813 17.548C10.9641 17.5963 11.0606 17.6101 11.1503 17.5825L14.219 11.968C14.1983 11.9404 14.1708 11.9197 14.1432 11.9059Z" fill="black">
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<div class="leafygreen-ui-obh8q1">
<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
</div>
</div>
<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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</button>
<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
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<div class="leafygreen-ui-xhlipt">
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<div>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/4.11/apidocs/mongodb-driver-core/com/mongodb/client/model/Filters.html" rel="noopener noreferrer">
<span>
com.mongodb.client.model.Filters
</span>
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</a>
helper methods to
facilitate the creation of filter documents. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(gte(<field1>, <value1>), lt(<field2>, <value2>), eq(<field3>, <value3>))","programmingLanguage":"Kotlin"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: { <operator1>: <value1> }, ... }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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</script>
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<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <!-- -->{ <<!-- -->operator1<!-- -->><!-- -->: <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <!-- -->{ <<!-- -->operator1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }<!-- --><!-- --></td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[ <field1> => [ <operator1> => <value1> ], ... ]</td></tr></tbody></table></code></pre>
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A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: { <operator1>: <value1> }, ... }</td></tr></tbody></table></code></pre>
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<div aria-labelledby="_n6yyu74sh" class="leafygreen-ui-38lglc" id="_m0am2do0h" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <!-- -->{ <<!-- -->operator1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }<!-- --><!-- --></td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<code class="leafygreen-ui-1l06pbn">
com.mongodb.client.model.Filters_
</code>
helper methods to
facilitate the creation of filter documents. For example:
</p>
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</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">equal</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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Node.js
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<p class="leafygreen-ui-1kp3ins">
To delete all documents that match a deletion criteria, pass a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
filter
</a>
parameter to the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://api.mongodb.com/ruby/current/Mongo/Collection.html#delete_many-instance_method" target="_self">
<span>
delete_many()
</span>
</a>
method.
</p>
<p class="leafygreen-ui-1kp3ins">
The following example removes all documents from the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection where the
<code class="leafygreen-ui-1l06pbn">
status
</code>
field equals
<code class="leafygreen-ui-1l06pbn">
"A"
</code>
:
</p>
</div>
</div>
</div>
<div>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
You can specify criteria, or filters, that identify the documents to
delete. The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
filters
</a>
use the same syntax
as read operations.
</p>
<div aria-hidden="true">
</div>
<div class="leafygreen-ui-f2qztv" data-lgid="lg-tabs">
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Compass
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C#
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Java (Async)
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Java (Sync)
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Kotlin (Coroutine)
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Motor
</div>
</button>
<button aria-controls="_dbcsdxqi0" aria-selected="true" class="leafygreen-ui-1l773z1" data-text="" id="_jjuly1xqm" name="" role="tab" tabindex="0">
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Node.js
</div>
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Perl
</div>
</button>
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Python
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Ruby
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Scala
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"JavaScript"}
</script>
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<div class="leafygreen-ui-196mwvg">
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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Node.js
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<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-obh8q1">
<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
</div>
</div>
<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
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<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"C"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: <value1>, ... }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-1240-menu" aria-describedby="select-1240-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-1241" type="button" value="Node.js">
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To specify equality conditions, construct a filter using the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-csharp-driver/2.10/apidocs/html/Overload_MongoDB_Driver_FilterDefinitionBuilder_1_Eq.htm" rel="noopener noreferrer">
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Eq
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method:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">Builders</span><<span class="lg-highlight-title lg-highlight-class">BsonDocument</span>>.<span class="lg-highlight-property">Filter</span>.<span class="lg-highlight-title lg-highlight-class">Eq</span>(<field>, <value>);</td></tr></tbody></table></code></pre>
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Node.js
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To specify equality conditions, use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/model/Filters.html#eq-java.lang.String-TItem-" rel="noopener noreferrer">
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com.mongodb.client.model.Filters.eq
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<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
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method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">eq</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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To specify equality conditions, use the
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com.mongodb.client.model.Filters.eq_
</code>
method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
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Node.js
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To specify equality conditions, use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/4.11/apidocs/mongodb-driver-core/com/mongodb/client/model/Filters.html#eq(java.lang.String,TItem)" rel="noopener noreferrer">
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Filters.eq()
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<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
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method to create the
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query filter document
<!-- -->
:
</a>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">eq</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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</button>
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</div>
</div>
</div>
</div>
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</div>
<div>
<div aria-labelledby="_hc7y79x8i" class="leafygreen-ui-38lglc" id="_zrgpwazpj" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"Python"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: <value1>, ... }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-1255-menu" aria-describedby="select-1255-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-1256" type="button" value="Node.js">
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<path d="M14.1432 11.9059L11.2261 10.2298C11.1985 10.216 11.164 10.2022 11.1365 10.1953L7.875 15.7825C7.90258 15.817 7.94609 15.8673 7.98056 15.888L10.8813 17.548C10.9641 17.5963 11.0606 17.6101 11.1503 17.5825L14.219 11.968C14.1983 11.9404 14.1708 11.9197 14.1432 11.9059Z" fill="black">
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<div class="leafygreen-ui-obh8q1">
<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
</div>
</div>
<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
</path>
</svg>
</div>
</button>
<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
</div>
</div>
</div>
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<div>
<div aria-labelledby="_0lt8t5iu4" class="" id="_z0h3emcgp" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field>:<value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1>: <value1>, ... }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-1258-menu" aria-describedby="select-1258-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-1259" type="button" value="Node.js">
<div class="leafygreen-ui-v038xi">
</div>
<div class="leafygreen-ui-16tr4y">
<svg aria-hidden="true" class="leafygreen-ui-18si895" fill="none" role="presentation" viewbox="0 0 30 30" xmlns="http://www.w3.org/2000/svg">
<g clip-path="url(#clip0_2131_12968)">
<mask height="19" id="mask0_2131_12968" maskunits="userSpaceOnUse" width="30" x="0" y="6">
<path d="M30 6.04395H0V24.3825H30V6.04395Z" fill="white">
</path>
</mask>
<g mask="url(#mask0_2131_12968)">
<mask height="19" id="mask1_2131_12968" maskunits="userSpaceOnUse" width="30" x="0" y="6">
<path d="M30 6.04395H0V24.3825H30V6.04395Z" fill="white">
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<div class="leafygreen-ui-obh8q1">
<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
</div>
</div>
<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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</svg>
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<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
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<div>
<div aria-labelledby="_v2muv9max" class="leafygreen-ui-38lglc" id="_vhbad6z8d" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field> => <value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1> => <value1>, ... }","programmingLanguage":"Perl"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-1261-menu" aria-describedby="select-1261-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-1262" type="button" value="Node.js">
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</div>
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<div class="leafygreen-ui-obh8q1">
<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
</div>
</div>
<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
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</svg>
</div>
</button>
<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
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</div>
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<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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<div>
<div aria-labelledby="_qy4axjnhu" class="leafygreen-ui-38lglc" id="_vg53oeig1" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field> => <value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"[ <field1> => <value1>, ... ]","programmingLanguage":"PHP"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[ <field1> => <value1>, ... ]</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-1264-menu" aria-describedby="select-1264-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-1265" type="button" value="Node.js">
<div class="leafygreen-ui-v038xi">
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<div class="leafygreen-ui-16tr4y">
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Node.js
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<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
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<field>:<value>
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expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use
<code class="leafygreen-ui-1l06pbn">
<field> => <value>
</code>
expressions in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1> => <value1>, ... }","programmingLanguage":"Ruby"}
</script>
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<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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Node.js
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</button>
<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
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<div>
<div aria-labelledby="_81w2869qw" class="leafygreen-ui-38lglc" id="_1p9z9rl0e" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To specify equality conditions, use the
<code class="leafygreen-ui-1l06pbn">
com.mongodb.client.model.Filters.eq_
</code>
method to create the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">equal</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">equal</span>(<field2>, <value2>) ...)</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <!-- -->{ <<!-- -->operator1<!-- -->><!-- -->: <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <!-- -->{ <<!-- -->operator1<!-- -->><!-- -->: <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: { <operator1>: <value1> }, ... }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
In addition to the equality filter, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-csharp-driver/2.10/apidocs/html/T_MongoDB_Driver_FilterDefinitionBuilder_1.htm" rel="noopener noreferrer">
<span>
FilterDefinitionBuilder
</span>
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methods to create a filter document. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"var builder = Builders<bsondocument>.Filter;\nbuilder.And(builder.Eq(<field1>, <value1>), builder.Lt(<field2>, <value2>));","programmingLanguage":"C#"}
</script>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> builder = <span class="lg-highlight-title lg-highlight-class">Builders</span><<span class="lg-highlight-title lg-highlight-class">BsonDocument</span>>.<span class="lg-highlight-property">Filter</span>;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">builder.<span class="lg-highlight-title lg-highlight-class">And</span>(builder.<span class="lg-highlight-title lg-highlight-class">Eq</span>(<field1>, <value1>), builder.<span class="lg-highlight-title lg-highlight-class">Lt</span>(<field2>, <value2>));</td></tr></tbody></table></code></pre>
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Node.js
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<p class="leafygreen-ui-1kp3ins">
In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/model/Filters.html" rel="noopener noreferrer">
<span>
com.mongodb.client.model.Filters
</span>
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<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
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</a>
helper methods to
facilitate the creation of filter documents. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(gte(<field1>, <value1>), lt(<field2>, <value2>), eq(<field3>, <value3>))","programmingLanguage":"Java"}
</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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Node.js
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<p class="leafygreen-ui-1kp3ins">
In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/model/Filters.html" rel="noopener noreferrer">
<span>
com.mongodb.client.model.Filters
</span>
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</a>
helper methods to
facilitate the creation of filter documents. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(gte(<field1>, <value1>), lt(<field2>, <value2>), eq(<field3>, <value3>))","programmingLanguage":"Java"}
</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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Node.js
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<p class="leafygreen-ui-1kp3ins">
In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/4.11/apidocs/mongodb-driver-core/com/mongodb/client/model/Filters.html" rel="noopener noreferrer">
<span>
com.mongodb.client.model.Filters
</span>
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</a>
helper methods to
facilitate the creation of filter documents. For example:
</p>
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{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"and(gte(<field1>, <value1>), lt(<field2>, <value2>), eq(<field3>, <value3>))","programmingLanguage":"Kotlin"}
</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">eq</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->><!-- -->: <!-- -->{ <<!-- -->operator1<!-- -->><!-- -->: <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ <field1> => { <operator1> => <value1> }, ... }","programmingLanguage":"Perl"}
</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <!-- -->{ <<!-- -->operator1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }<!-- --><!-- --></td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"[ <field1> => [ <operator1> => <value1> ], ... ]","programmingLanguage":"PHP"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[ <field1> => [ <operator1> => <value1> ], ... ]</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <field1>: { <operator1>: <value1> }, ... }</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
conditions in the following form:
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <<!-- -->field1<!-- -->> <!-- -->=<!-- -->> <!-- -->{ <<!-- -->operator1<!-- -->> <!-- -->=<!-- -->> <<!-- -->value1<!-- -->> <!-- -->}<!-- -->, <!-- -->...<!-- --> }<!-- --><!-- --></td></tr></tbody></table></code></pre>
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In addition to the equality condition, MongoDB provides
various
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
to specify
filter conditions. Use the
<code class="leafygreen-ui-1l06pbn">
com.mongodb.client.model.Filters_
</code>
helper methods to
facilitate the creation of filter documents. For example:
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">and</span>(<span class="lg-highlight-title lg-highlight-function">gte</span>(<field1>, <value1>), <span class="lg-highlight-title lg-highlight-function">lt</span>(<field2>, <value2>), <span class="lg-highlight-title lg-highlight-function">equal</span>(<field3>, <value3>))</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
To delete all documents that match a deletion criteria, pass a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
filter
</a>
parameter to the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://mongodb.github.io/mongo-scala-driver/2.9/scaladoc/org/mongodb/scala/MongoCollection.html#deleteMany(filter:org.mongodb.scala.bson.conversions.Bson,options:org.mongodb.scala.model.DeleteOptions):org.mongodb.scala.SingleObservable[org.mongodb.scala.result.DeleteResult]" rel="noopener noreferrer">
<span>
deleteMany()
</span>
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</svg>
</a>
method.
</p>
<p class="leafygreen-ui-1kp3ins">
The following example removes all documents from the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection where the
<code class="leafygreen-ui-1l06pbn">
status
</code>
field equals
<code class="leafygreen-ui-1l06pbn">
"A"
</code>
:
</p>
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<div aria-labelledby="_r5fuf8q49" class="leafygreen-ui-38lglc" id="_a5wp929me" role="tabpanel">
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<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.inventory.deleteMany({ status : \"A\" })","programmingLanguage":"JavaScript"}
</script>
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<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">inventory</span>.<span class="lg-highlight-title lg-highlight-function">deleteMany</span>(<!-- -->{ <!-- -->status <!-- -->: <span class="lg-highlight-string">"A"</span> })</td></tr></tbody></table></code></pre>
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{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"mongoc_collection_t *collection;\nbson_t *selector;\nbool r;\nbson_error_t error;\n\ncollection = mongoc_database_get_collection (db, \"inventory\");\nselector = BCON_NEW (\"status\", BCON_UTF8 (\"A\"));\n\nr = mongoc_collection_delete_many (collection, selector, NULL, NULL, &error);\nbson_destroy (selector);\n\nif (!r) {\n MONGOC_ERROR (\"%s\\n\", error.message);\n goto done;\n}","programmingLanguage":"C"}
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">mongoc_collection_t *collection;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">bson_t *selector;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">bool r;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">bson_error_t error;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">collection <!-- -->= <!-- -->mongoc_database_get_collection (db<!-- -->, <span class="lg-highlight-string">"inventory"</span>);</td></tr><tr class=""><td class="leafygreen-ui-7razhx">selector <!-- -->= <!-- --><span class="lg-highlight-variable lg-highlight-constant">BCON_NEW</span> (<!-- --><!-- --><span class="lg-highlight-string">"status"</span>, <span class="lg-highlight-variable lg-highlight-constant">BCON_UTF8</span> <!-- -->(<span class="lg-highlight-string">"A"</span>));</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">r <!-- -->= <!-- -->mongoc_collection_delete_many (collection, selector<!-- -->, <span class="lg-highlight-variable lg-highlight-constant">NULL</span>, <span class="lg-highlight-variable lg-highlight-constant">NULL</span>, &error);</td></tr><tr class=""><td class="leafygreen-ui-7razhx">bson_destroy <!-- -->(<!-- -->selector);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">if</span> <!-- -->(<!-- -->!r) {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- --><span class="lg-highlight-variable lg-highlight-constant">MONGOC_ERROR</span> (<span class="lg-highlight-string">"%s</span><!-- --><span class="lg-highlight-string">\n</span><span class="lg-highlight-string">"</span>, error.<span class="lg-highlight-property">message</span>);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> goto done;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> filter = <span class="lg-highlight-title lg-highlight-class">Builders</span><<span class="lg-highlight-title lg-highlight-class">BsonDocument</span>>.<span class="lg-highlight-property">Filter</span>.<span class="lg-highlight-title lg-highlight-class">Eq</span>(<span class="lg-highlight-string">"status"</span>, <span class="lg-highlight-string">"A"</span>);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> result = collection.<span class="lg-highlight-title lg-highlight-class">DeleteMany</span>(filter);</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">result<!-- -->, <!-- -->err := coll.<span class="lg-highlight-title lg-highlight-class">DeleteMany</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> context.<span class="lg-highlight-title lg-highlight-function">TODO</span>(),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> bson.<span class="lg-highlight-property">D</span>{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {<span class="lg-highlight-string">"status"</span>, <span class="lg-highlight-string">"A"</span>},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">deleteManyPublisher = collection.<span class="lg-highlight-title lg-highlight-function">deleteMany</span>(<span class="lg-highlight-title lg-highlight-function">eq</span>(<span class="lg-highlight-string">"status"</span>, <span class="lg-highlight-string">"A"</span>));</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">collection.<span class="lg-highlight-title lg-highlight-function">deleteMany</span>(<span class="lg-highlight-title lg-highlight-function">eq</span>(<span class="lg-highlight-string">"status"</span>, <span class="lg-highlight-string">"A"</span>));</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">await</span> db.<span class="lg-highlight-title lg-highlight-function">collection</span>(<span class="lg-highlight-string">'inventory'</span>).<span class="lg-highlight-title lg-highlight-function">deleteMany</span>(<!-- -->{ <span class="lg-highlight-attr">status</span>: <span class="lg-highlight-string">'A'</span> })<!-- -->;</td></tr></tbody></table></code></pre>
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{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"$db->coll(\"inventory\")->delete_many( { status => \"A\" } );","programmingLanguage":"Perl"}
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">$db<!-- -->-<!-- -->><!-- --><!-- --><span class="lg-highlight-title lg-highlight-function">coll</span>(<span class="lg-highlight-string">"inventory"</span>)<!-- -->-<!-- -->><!-- --><!-- --><span class="lg-highlight-title lg-highlight-function">delete_many</span>( <!-- -->{ <span class="lg-highlight-params lg-highlight-function">status</span><!-- --><span class="lg-highlight-function"> =></span> <span class="lg-highlight-string">"A"</span> } );</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
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Node.js
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<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
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<div class="leafygreen-ui-1kdmo88">
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"$deleteResult = $db->inventory->deleteMany(['status' => 'A']);","programmingLanguage":"PHP"}
</script>
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<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">$deleteResult = $db->inventory-<!-- -->><span class="lg-highlight-title lg-highlight-function">deleteMany</span>([<span class="lg-highlight-string">'status'</span> => <span class="lg-highlight-string">'A'</span>]);</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
<div class="leafygreen-ui-148abs6">
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<div aria-labelledby="_aec26behw" class="leafygreen-ui-38lglc" id="_o8w46dw2i" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
The method returns a document with the status of the operation. For
more information and examples, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.deleteMany/#mongodb-method-db.collection.deleteMany">
<code class="leafygreen-ui-1l06pbn">
deleteMany()
</code>
.
</a>
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_pgi3htr6h" class="leafygreen-ui-38lglc" id="_ze49lbx3y" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongoc.org/libmongoc/current/mongoc_collection_delete_many.html" rel="noopener noreferrer">
<span>
mongoc_collection_delete_many
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method returns
<code class="leafygreen-ui-1l06pbn">
true
</code>
if successful, or returns
<code class="leafygreen-ui-1l06pbn">
false
</code>
and sets
an error if there are invalid arguments or a server or network error
occurs.
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_swtrg05mt" class="leafygreen-ui-38lglc" id="_hpn5aks97" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
Upon successful execution, the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-csharp-driver/2.10/apidocs/html/M_MongoDB_Driver_IMongoCollection_1_DeleteMany.htm" rel="noopener noreferrer">
<span>
IMongoCollection.DeleteMany()
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method returns an instance of
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-csharp-driver/2.10/apidocs/html/T_MongoDB_Driver_DeleteResult.htm" rel="noopener noreferrer">
<span>
DeleteResult
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
whose
<code class="leafygreen-ui-1l06pbn">
DeletedCount
</code>
property contains the number of documents
that matched the filter.
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_qgg9kv454" class="leafygreen-ui-38lglc" id="_6l7mo5pjj" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
Upon successful execution, the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://godoc.org/github.com/mongodb/mongo-go-driver/mongo#Collection.DeleteMany" rel="noopener noreferrer">
<span>
Collection.DeleteMany
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
function returns an instance of
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://godoc.org/github.com/mongodb/mongo-go-driver/mongo#DeleteResult" rel="noopener noreferrer">
<span>
DeleteResult
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
whose
<code class="leafygreen-ui-1l06pbn">
DeletedCount
</code>
property contains the number of documents
that matched the filter.
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_692euyqr8" class="leafygreen-ui-38lglc" id="_5g7bos1pe" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://mongodb.github.io/mongo-java-driver-reactivestreams/1.6/javadoc/com/mongodb/reactivestreams/client/MongoCollection.html#deleteMany(org.bson.conversions.Bson)" rel="noopener noreferrer">
<span>
com.mongodb.reactivestreams.client.MongoCollection.deleteMany
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
returns a
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://www.reactive-streams.org/reactive-streams-1.0.1-javadoc/org/reactivestreams/Publisher.html" rel="noopener noreferrer">
<span>
Publisher
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
object of type
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/result/DeleteResult" rel="noopener noreferrer">
<span>
com.mongodb.client.result.DeleteResult
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
if
successful. Returns an instance of
<code class="leafygreen-ui-1l06pbn">
com.mongodb.MongoException
</code>
if unsuccessful.
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_vyw6zg5qu" class="leafygreen-ui-38lglc" id="_ck9hcl9yw" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/MongoCollection.html#deleteMany-org.bson.conversions.Bson-" rel="noopener noreferrer">
<span>
com.mongodb.client.MongoCollection.deleteMany
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method returns an instance of
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/result/DeleteResult" rel="noopener noreferrer">
<span>
com.mongodb.client.result.DeleteResult
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
with the status of the
operation.
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_es25gfxbp" class="leafygreen-ui-38lglc" id="_oudoi3c23" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/4.11/apidocs/mongodb-driver-kotlin-coroutine/mongodb-driver-kotlin-coroutine/com.mongodb.kotlin.client.coroutine/-mongo-collection/delete-many.html" rel="noopener noreferrer">
<span>
MongoCollection.deleteMany()
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method returns an instance of
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/4.11/apidocs/mongodb-driver-core/com/mongodb/client/result/DeleteResult.html" rel="noopener noreferrer">
<span>
com.mongodb.client.result.DeleteResult
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
that describes the status of the
operation and count of deleted documents.
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_s3hkzcj5h" class="leafygreen-ui-38lglc" id="_zj1t8o6nh" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://motor.readthedocs.io/en/stable/api-asyncio/asyncio_motor_collection.html#motor.motor_asyncio.AsyncIOMotorCollection.delete_many" rel="noopener noreferrer">
<span>
<code class="leafygreen-ui-1l06pbn">
delete_many
</code>
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
coroutine asynchronously returns an instance of
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://pymongo.readthedocs.io/en/stable/api/pymongo/results.html#pymongo.results.DeleteResult" rel="noopener noreferrer">
<span>
<code class="leafygreen-ui-1l06pbn">
pymongo.results.DeleteResult
</code>
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
with the status of the
operation.
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_p10euwhuq" class="" id="_kgguaegge" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://mongodb.github.io/node-mongodb-native/3.6/api/Collection.html#deleteMany" rel="noopener noreferrer">
<span>
deleteMany()
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
returns a
promise that provides a
<code class="leafygreen-ui-1l06pbn">
result
</code>
. The
<code class="leafygreen-ui-1l06pbn">
result.deletedCount
</code>
property contains the number of documents that matched the
filter.
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_jw1knofmx" class="leafygreen-ui-38lglc" id="_bzil7clev" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
Upon successful execution, the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://metacpan.org/pod/MongoDB::Collection#delete_many" rel="noopener noreferrer">
<span>
delete_many()
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method
returns an instance of
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://metacpan.org/pod/MongoDB::DeleteResult" rel="noopener noreferrer">
<span>
MongoDB::DeleteResult
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
whose
<code class="leafygreen-ui-1l06pbn">
deleted_count
</code>
attribute contains the number of documents
that matched the filter.
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_egw9vobab" class="leafygreen-ui-38lglc" id="_6fvmixgvi" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
Upon successful execution, the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/php-library/upcoming/reference/method/MongoDBCollection-deleteMany/#mongodb-phpmethod-phpmethod.MongoDB-Collection--deleteMany--" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
deleteMany()
</code>
</span>
</a>
method returns an instance of
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/php-library/upcoming/reference/class/MongoDBDeleteResult/#mongodb-phpclass-phpclass.MongoDB-DeleteResult" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
MongoDB\\DeleteResult
</code>
</span>
</a>
whose
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/php-library/upcoming/reference/method/MongoDBDeleteResult-getDeletedCount/#mongodb-phpmethod-phpmethod.MongoDB-DeleteResult--getDeletedCount--" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
getDeletedCount()
</code>
</span>
</a>
method returns the number of documents that matched the filter.
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_dgu5505y6" class="leafygreen-ui-38lglc" id="_k5n9w3io5" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://pymongo.readthedocs.io/en/stable/api/pymongo/collection.html#pymongo.collection.Collection.delete_many" rel="noopener noreferrer">
<span>
<code class="leafygreen-ui-1l06pbn">
delete_many
</code>
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method returns an instance of
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://pymongo.readthedocs.io/en/stable/api/pymongo/results.html#pymongo.results.DeleteResult" rel="noopener noreferrer">
<span>
<code class="leafygreen-ui-1l06pbn">
pymongo.results.DeleteResult
</code>
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
with the status of the
operation.
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_f9l35nfua" class="leafygreen-ui-38lglc" id="_ypkwm32ul" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
Upon successful execution, the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://api.mongodb.com/ruby/current/Mongo/Collection.html#delete_many-instance_method" target="_self">
<span>
delete_many()
</span>
</a>
method
returns an instance of
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://api.mongodb.com/ruby/current/Mongo/Operation/Result.html" target="_self">
<span>
Mongo::Operation::Result
</span>
</a>
, whose
<code class="leafygreen-ui-1l06pbn">
deleted_count
</code>
attribute contains the number of documents
that matched the filter.
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_0e7utl59f" class="leafygreen-ui-38lglc" id="_xq79cm8hv" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
Upon successful execution, the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://mongodb.github.io/mongo-scala-driver/2.9/scaladoc/org/mongodb/scala/MongoCollection.html#deleteMany(filter:org.mongodb.scala.bson.conversions.Bson,options:org.mongodb.scala.model.DeleteOptions):org.mongodb.scala.SingleObservable[org.mongodb.scala.result.DeleteResult]" rel="noopener noreferrer">
<span>
collection.deleteMany()
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method
returns an
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://mongodb.github.io/mongo-scala-driver/2.1/reference/observables/" rel="noopener noreferrer">
<span>
Observable
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
with a single element with a
<code class="leafygreen-ui-1l06pbn">
DeleteResult
</code>
type parameter or with
an
<code class="leafygreen-ui-1l06pbn">
com.mongodb.MongoException
</code>
.
</p>
</div>
</div>
</div>
</div>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Delete Only One Document that Matches a Condition
<a class="headerlink leafygreen-ui-1kepx47" href="#delete-only-one-document-that-matches-a-condition" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="delete-only-one-document-that-matches-a-condition">
</div>
</a>
</h2>
<div aria-hidden="true">
</div>
<div class="leafygreen-ui-f2qztv" data-lgid="lg-tabs">
<div class="leafygreen-ui-jp7pox" id="tabs-43">
<div aria-label="Tabs to describe usage of drivers" aria-orientation="horizontal" class="leafygreen-ui-m8p1vb lg-ui-tab-list-0000" data-lgid="lg-tabs-tab_list" role="tablist">
<button aria-controls="_pa7lm35n7" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_wypk1cwj7" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
MongoDB Shell
</div>
</button>
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<div class="leafygreen-ui-1nxuzmg">
Compass
</div>
</button>
<button aria-controls="_idwcexbb6" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_mnwihpebk" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
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</div>
</button>
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C#
</div>
</button>
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<div class="leafygreen-ui-1nxuzmg">
Go
</div>
</button>
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Java (Async)
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</button>
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Java (Sync)
</div>
</button>
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Kotlin (Coroutine)
</div>
</button>
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<div class="leafygreen-ui-1nxuzmg">
Motor
</div>
</button>
<button aria-controls="_7kvia4lsi" aria-selected="true" class="leafygreen-ui-1l773z1" data-text="" id="_0admt4nar" name="" role="tab" tabindex="0">
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Node.js
</div>
</button>
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Perl
</div>
</button>
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<div class="leafygreen-ui-1nxuzmg">
PHP
</div>
</button>
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Python
</div>
</button>
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Ruby
</div>
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Scala
</div>
</button>
</div>
<div class="leafygreen-ui-ov1ktg">
<div class="leafygreen-ui-1sg2lsz">
</div>
</div>
</div>
<div class="lg-ui-tab-panels-0000" data-lgid="lg-tabs-tab_panels">
<div>
<div aria-labelledby="_sxfofk6nf" class="leafygreen-ui-38lglc" id="_huaf7wxso" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To delete at most a single document that matches a specified
filter (even though multiple documents may match the specified
filter) use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.deleteOne/#mongodb-method-db.collection.deleteOne">
<code class="leafygreen-ui-1l06pbn">
db.collection.deleteOne()
</code>
</a>
method.
</p>
<p class="leafygreen-ui-1kp3ins">
The following example deletes the
<em>
first
</em>
document where
<code class="leafygreen-ui-1l06pbn">
status
</code>
is
<code class="leafygreen-ui-1l06pbn">
"D"
</code>
:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_ksns54yj1" class="leafygreen-ui-38lglc" id="_lbgih2dhd" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
MongoDB Compass provides a simple way to delete a document
from a collection. The following example shows how to delete
the document with
<code class="leafygreen-ui-1l06pbn">
item
</code>
equal to
<code class="leafygreen-ui-1l06pbn">
paper
</code>
from the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection:
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
In this example we are using the Compass
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/compass/current/documents/view/#std-label-compass-documents-table-view" target="_self">
<span>
Table View
</span>
</a>
to delete the
document. The deletion process using the Compass
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/compass/current/documents/view/#std-label-compass-documents-list-view" target="_self">
<span>
List View
</span>
</a>
follows a very
similar approach.
</p>
<p class="leafygreen-ui-1kp3ins">
For more information on the differences between Table View
and List View in Compass, refer to the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/compass/current/documents/view/#std-label-compass-view-documents" target="_self">
<span>
Compass documentation
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
</div>
</div>
</div>
<div>
<div aria-labelledby="_jcf4cfr48" class="leafygreen-ui-38lglc" id="_sdou9bd0e" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To delete a single document from a collection, pass the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongoc.org/libmongoc/current/mongoc_collection_t.html" rel="noopener noreferrer">
<span>
mongoc_collection_t
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
and a
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongoc.org/libbson/current/bson_t.html" rel="noopener noreferrer">
<span>
bson_t
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
that matches the document you want to delete to the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongoc.org/libmongoc/current/mongoc_collection_delete_one.html" rel="noopener noreferrer">
<span>
mongoc_collection_delete_one
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method.
</p>
<p class="leafygreen-ui-1kp3ins">
The following example deletes
<em>
all
</em>
documents from the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_1dnu7hnhg" class="leafygreen-ui-38lglc" id="_43hmfx8o1" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To delete at most a single document that matches a specified
filter (even though multiple documents may match the specified
filter) use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-csharp-driver/2.10/apidocs/html/M_MongoDB_Driver_IMongoCollection_1_DeleteOne.htm" rel="noopener noreferrer">
<span>
IMongoCollection.DeleteOne()
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method.
</p>
<p class="leafygreen-ui-1kp3ins">
The following example deletes the
<em>
first
</em>
document where
<code class="leafygreen-ui-1l06pbn">
status
</code>
is
<code class="leafygreen-ui-1l06pbn">
"D"
</code>
:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_97op6pmpg" class="leafygreen-ui-38lglc" id="_5dxn2hmg4" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To delete at most a single document that matches a specified
filter (even though multiple documents may match the specified
filter) use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://godoc.org/github.com/mongodb/mongo-go-driver/mongo#Collection.DeleteOne" rel="noopener noreferrer">
<span>
Collection.DeleteOne
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
function.
</p>
<p class="leafygreen-ui-1kp3ins">
The following example deletes the
<em>
first
</em>
document where
<code class="leafygreen-ui-1l06pbn">
status
</code>
is
<code class="leafygreen-ui-1l06pbn">
"D"
</code>
:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_b5ktlqwka" class="leafygreen-ui-38lglc" id="_fpz766qvq" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To delete at most a single document that matches a specified
filter (even though multiple documents may match the specified
filter) use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://mongodb.github.io/mongo-java-driver-reactivestreams/1.6/javadoc/com/mongodb/reactivestreams/client/MongoCollection.html#deleteMany(org.bson.conversions.Bson)" rel="noopener noreferrer">
<span>
com.mongodb.reactivestreams.client.MongoCollection.deleteMany
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method.
</p>
<p class="leafygreen-ui-1kp3ins">
The following example deletes the
<em>
first
</em>
document where
<code class="leafygreen-ui-1l06pbn">
status
</code>
is
<code class="leafygreen-ui-1l06pbn">
"D"
</code>
:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_nif1rkqs3" class="leafygreen-ui-38lglc" id="_6l7uffvhf" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To delete at most a single document that matches a specified
filter (even though multiple documents may match the specified
filter) use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/MongoCollection.html#deleteOne-org.bson.conversions.Bson-" rel="noopener noreferrer">
<span>
com.mongodb.client.MongoCollection.deleteOne
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method.
</p>
<p class="leafygreen-ui-1kp3ins">
The following example deletes the
<em>
first
</em>
document where
<code class="leafygreen-ui-1l06pbn">
status
</code>
is
<code class="leafygreen-ui-1l06pbn">
"D"
</code>
:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_pfqifhkx0" class="leafygreen-ui-38lglc" id="_mdpypw2kx" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To delete at most a single document that matches a specified
filter, even if multiple documents match the specified
filter, you can use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/4.11/apidocs/mongodb-driver-kotlin-coroutine/mongodb-driver-kotlin-coroutine/com.mongodb.kotlin.client.coroutine/-mongo-collection/delete-one.html" rel="noopener noreferrer">
<span>
MongoCollection.deleteOne()
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method.
</p>
<p class="leafygreen-ui-1kp3ins">
The following example deletes the
<em>
first
</em>
document where
<code class="leafygreen-ui-1l06pbn">
status
</code>
is
<code class="leafygreen-ui-1l06pbn">
"D"
</code>
:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_18sjhuwci" class="leafygreen-ui-38lglc" id="_3urc5touc" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To delete at most a single document that matches a specified
filter (even though multiple documents may match the specified
filter) use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://motor.readthedocs.io/en/stable/api-asyncio/asyncio_motor_collection.html#motor.motor_asyncio.AsyncIOMotorCollection.delete_one" rel="noopener noreferrer">
<span>
<code class="leafygreen-ui-1l06pbn">
motor.motor_asyncio.AsyncIOMotorCollection.delete_one
</code>
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method.
</p>
<p class="leafygreen-ui-1kp3ins">
The following example deletes the
<em>
first
</em>
document where
<code class="leafygreen-ui-1l06pbn">
status
</code>
is
<code class="leafygreen-ui-1l06pbn">
"D"
</code>
:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_cejwx18ws" class="" id="_elzhmjnly" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To delete at most a single document that matches a specified
filter (even though multiple documents may match the specified
filter) use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://mongodb.github.io/node-mongodb-native/3.6/api/Collection.html#deleteOne" rel="noopener noreferrer">
<span>
Collection.deleteOne()
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method.
</p>
<p class="leafygreen-ui-1kp3ins">
The following example deletes the
<em>
first
</em>
document where
<code class="leafygreen-ui-1l06pbn">
status
</code>
is
<code class="leafygreen-ui-1l06pbn">
"D"
</code>
:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_w4mkeyd7w" class="leafygreen-ui-38lglc" id="_qqqymnuxo" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To delete at most a single document that matches a specified
filter (even though multiple documents may match the specified
filter) use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://metacpan.org/pod/MongoDB::Collection#delete_one" rel="noopener noreferrer">
<span>
MongoDB::Collection::delete_one()
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method.
</p>
<p class="leafygreen-ui-1kp3ins">
The following example deletes the
<em>
first
</em>
document where
<code class="leafygreen-ui-1l06pbn">
status
</code>
is
<code class="leafygreen-ui-1l06pbn">
"D"
</code>
:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_yldenjbud" class="leafygreen-ui-38lglc" id="_k3ykwgdjb" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To delete at most a single document that matches a specified
filter (even though multiple documents may match the specified
filter) use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/php-library/upcoming/reference/method/MongoDBCollection-deleteOne/#mongodb-phpmethod-phpmethod.MongoDB-Collection--deleteOne--" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
MongoDB\\Collection::deleteOne()
</code>
</span>
</a>
method.
</p>
<p class="leafygreen-ui-1kp3ins">
The following example deletes the
<em>
first
</em>
document where
<code class="leafygreen-ui-1l06pbn">
status
</code>
is
<code class="leafygreen-ui-1l06pbn">
"D"
</code>
:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_k6w3fw6u4" class="leafygreen-ui-38lglc" id="_bez60ez7c" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To delete at most a single document that matches a specified
filter (even though multiple documents may match the specified
filter) use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://pymongo.readthedocs.io/en/stable/api/pymongo/collection.html#pymongo.collection.Collection.delete_one" rel="noopener noreferrer">
<span>
<code class="leafygreen-ui-1l06pbn">
pymongo.collection.Collection.delete_one
</code>
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method.
</p>
<p class="leafygreen-ui-1kp3ins">
The following example deletes the
<em>
first
</em>
document where
<code class="leafygreen-ui-1l06pbn">
status
</code>
is
<code class="leafygreen-ui-1l06pbn">
"D"
</code>
:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_0gyfvphj1" class="leafygreen-ui-38lglc" id="_u1tuckkl1" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To delete at most a single document that matches a specified
filter (even though multiple documents may match the specified
filter) use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://api.mongodb.com/ruby/current/Mongo/Collection.html#delete_one-instance_method" target="_self">
<span>
Mongo::Collection#delete_one()
</span>
</a>
method.
</p>
<p class="leafygreen-ui-1kp3ins">
The following example deletes the
<em>
first
</em>
document where
<code class="leafygreen-ui-1l06pbn">
status
</code>
is
<code class="leafygreen-ui-1l06pbn">
"D"
</code>
:
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_3lalpkaps" class="leafygreen-ui-38lglc" id="_bg5am42bx" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To delete at most a single document that matches a specified
filter (even though multiple documents may match the specified
filter) use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://mongodb.github.io/mongo-scala-driver/2.9/scaladoc/org/mongodb/scala/MongoCollection.html#deleteOne(filter:org.mongodb.scala.bson.conversions.Bson,options:org.mongodb.scala.model.DeleteOptions):org.mongodb.scala.SingleObservable[org.mongodb.scala.result.DeleteResult]" rel="noopener noreferrer">
<span>
collection.deleteOne()
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
method.
</p>
<p class="leafygreen-ui-1kp3ins">
The following example deletes the
<em>
first
</em>
document where
<code class="leafygreen-ui-1l06pbn">
status
</code>
is
<code class="leafygreen-ui-1l06pbn">
"D"
</code>
:
</p>
</div>
</div>
</div>
</div>
</div>
<div aria-hidden="true">
</div>
<div class="leafygreen-ui-f2qztv" data-lgid="lg-tabs">
<div class="leafygreen-ui-jp7pox" id="tabs-44">
<div aria-label="Tabs to describe usage of drivers" aria-orientation="horizontal" class="leafygreen-ui-m8p1vb lg-ui-tab-list-0000" data-lgid="lg-tabs-tab_list" role="tablist">
<button aria-controls="_95b382ckn" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_d49fhlbud" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
MongoDB Shell
</div>
</button>
<button aria-controls="_tdbg416vz" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_y0hpo8h9d" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Compass
</div>
</button>
<button aria-controls="_yjf6f89pj" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_da3kua9nb" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
C
</div>
</button>
<button aria-controls="_dcbx6278w" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_5sgelzi75" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
C#
</div>
</button>
<button aria-controls="_etno5048n" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_e246mc9l7" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Go
</div>
</button>
<button aria-controls="_7ucj46wze" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_odc0lrn4v" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Java (Async)
</div>
</button>
<button aria-controls="_duvlo5gy4" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_un03b3nrv" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Java (Sync)
</div>
</button>
<button aria-controls="_nsw7qsu1y" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_hy72rt6h1" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Motor
</div>
</button>
<button aria-controls="_qv9r6fmvk" aria-selected="true" class="leafygreen-ui-1l773z1" data-text="" id="_z1nvvtk88" name="" role="tab" tabindex="0">
<div class="leafygreen-ui-1nxuzmg">
Node.js
</div>
</button>
<button aria-controls="_wx26fm2np" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_bhlpqrpm5" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Perl
</div>
</button>
<button aria-controls="_duinqpapn" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_ianzfa1qv" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
PHP
</div>
</button>
<button aria-controls="_26l3s07de" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_tixyzguus" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Python
</div>
</button>
<button aria-controls="_m9rx62ca5" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_c5jar9nxn" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Ruby
</div>
</button>
<button aria-controls="_vzmogjw55" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_445sai2rk" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Scala
</div>
</button>
</div>
<div class="leafygreen-ui-ov1ktg">
<div class="leafygreen-ui-1sg2lsz">
</div>
</div>
</div>
<div class="lg-ui-tab-panels-0000" data-lgid="lg-tabs-tab_panels">
<div>
<div aria-labelledby="_kvn7gzh8n" class="leafygreen-ui-38lglc" id="_ebz4nibnv" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.inventory.deleteOne( { status: \"D\" } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">inventory</span>.<span class="lg-highlight-title lg-highlight-function">deleteOne</span>( <!-- -->{ <span class="lg-highlight-attr">status</span>: <span class="lg-highlight-string">"D"</span> } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-1360-menu" aria-describedby="select-1360-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-1361" type="button" value="Node.js">
<div class="leafygreen-ui-v038xi">
</div>
<div class="leafygreen-ui-16tr4y">
<svg aria-hidden="true" class="leafygreen-ui-18si895" fill="none" role="presentation" viewbox="0 0 30 30" xmlns="http://www.w3.org/2000/svg">
<g clip-path="url(#clip0_2131_12968)">
<mask height="19" id="mask0_2131_12968" maskunits="userSpaceOnUse" width="30" x="0" y="6">
<path d="M30 6.04395H0V24.3825H30V6.04395Z" fill="white">
</path>
</mask>
<g mask="url(#mask0_2131_12968)">
<mask height="19" id="mask1_2131_12968" maskunits="userSpaceOnUse" width="30" x="0" y="6">
<path d="M30 6.04395H0V24.3825H30V6.04395Z" fill="white">
</path>
</mask>
<g mask="url(#mask1_2131_12968)">
<path d="M14.8241 24.3823C14.7224 24.3823 14.6274 24.3552 14.5393 24.3078L13.6374 23.7731C13.5018 23.6986 13.5696 23.6715 13.6103 23.658C13.7934 23.597 13.8273 23.5835 14.0172 23.4751C14.0375 23.4616 14.0646 23.4684 14.085 23.4819L14.7767 23.8949C14.8038 23.9084 14.8377 23.9084 14.858 23.8949L17.5637 22.3311C17.5909 22.3176 17.6044 22.2905 17.6044 22.2567V19.136C17.6044 19.1021 17.5909 19.075 17.5637 19.0615L14.858 17.5045C14.8309 17.4909 14.797 17.4909 14.7767 17.5045L12.071 19.0615C12.0439 19.075 12.0302 19.1089 12.0302 19.136V22.2567C12.0302 22.2838 12.0439 22.3176 12.071 22.3311L12.8101 22.7576C13.2102 22.9607 13.4611 22.7237 13.4611 22.4868V19.4067C13.4611 19.3661 13.495 19.3255 13.5425 19.3255H13.8884C13.929 19.3255 13.9697 19.3593 13.9697 19.4067V22.4868C13.9697 23.0217 13.6781 23.333 13.1695 23.333C13.0136 23.333 12.8915 23.333 12.5457 23.1638L11.8336 22.7576C11.6574 22.6561 11.5488 22.4665 11.5488 22.2635V19.1427C11.5488 18.9396 11.6574 18.7501 11.8336 18.6485L14.5393 17.0848C14.7089 16.99 14.9394 16.99 15.109 17.0848L17.8146 18.6485C17.9909 18.7501 18.0995 18.9396 18.0995 19.1427V22.2635C18.0995 22.4665 17.9909 22.6561 17.8146 22.7576L15.109 24.3214C15.0276 24.3552 14.9259 24.3823 14.8241 24.3823Z" fill="black">
</path>
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Node.js
</div>
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<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
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</svg>
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</button>
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<div>
<div aria-labelledby="_qng1s7poh" class="leafygreen-ui-38lglc" id="_fxp0zsq1m" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<ol class="leafygreen-ui-rioki0" type="1">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Click the
<span class="guilabel css-h15tq0">
Table
</span>
button in the top navigation
to access the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/compass/current/documents/view/#std-label-compass-documents-table-view" target="_self">
<span>
Table View
<!-- -->
:
</span>
</a>
</p>
<div class="figure css-5vkxs0" style="width:auto">
<div class="gatsby-image-wrapper gatsby-image-wrapper-constrained leafygreen-ui-12xaq6r" data-gatsby-image-wrapper="">
<div style="max-width:1498px;display:block">
<img alt="" aria-hidden="true" role="presentation" src="data:image/svg+xml;charset=utf-8,%3Csvg%20height='576'%20width='1498'%20xmlns='http://www.w3.org/2000/svg'%20version='1.1'%3E%3C/svg%3E" style="max-width:100%;display:block;position:static"/>
</div>
<div aria-hidden="true" data-placeholder-image="" style="opacity:1;transition:opacity 500ms linear">
</div>
<img alt="Compass Table View button" data-main-image="" decoding="async" height="576" loading="lazy" sizes="(min-width: 1498px) 1498px, 100vw" src="/docs/manual/static/261af5e305bd5512e94874e9152ab483/f46fd/compass-table-btn-click-2.webp" srcset="/docs/manual/static/261af5e305bd5512e94874e9152ab483/02bab/compass-table-btn-click-2.webp 375w,/docs/manual/static/261af5e305bd5512e94874e9152ab483/84b93/compass-table-btn-click-2.webp 749w,/docs/manual/static/261af5e305bd5512e94874e9152ab483/f46fd/compass-table-btn-click-2.webp 1498w" style="--border-color:#C1C7C6;opacity:0" width="1498"/>
<noscript>
<img alt="Compass Table View button" data-gatsby-image-ssr="" data-main-image="" decoding="async" height="576" loading="lazy" sizes="(min-width: 1498px) 1498px, 100vw" src="/docs/manual/static/261af5e305bd5512e94874e9152ab483/f46fd/compass-table-btn-click-2.webp" srcset="/docs/manual/static/261af5e305bd5512e94874e9152ab483/02bab/compass-table-btn-click-2.webp 375w,/docs/manual/static/261af5e305bd5512e94874e9152ab483/84b93/compass-table-btn-click-2.webp 749w,/docs/manual/static/261af5e305bd5512e94874e9152ab483/f46fd/compass-table-btn-click-2.webp 1498w" style="--border-color:#C1C7C6;opacity:0" width="1498"/>
</noscript>
<script type="module">
const t="undefined"!=typeof HTMLImageElement&&"loading"in HTMLImageElement.prototype;if(t){const t=document.querySelectorAll("img[data-main-image]");for(let e of t){e.dataset.src&&(e.setAttribute("src",e.dataset.src),e.removeAttribute("data-src")),e.dataset.srcset&&(e.setAttribute("srcset",e.dataset.srcset),e.removeAttribute("data-srcset"));const t=e.parentNode.querySelectorAll("source[data-srcset]");for(let e of t)e.setAttribute("srcset",e.dataset.srcset),e.removeAttribute("data-srcset");e.complete&&(e.style.opacity=1,e.parentNode.parentNode.querySelector("[data-placeholder-image]").style.opacity=0)}}
</script>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Use the Compass
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/compass/current/query/filter/#std-label-compass-query-bar-filter" target="_self">
<span>
query bar
</span>
</a>
to
locate the target document.
</p>
<p class="leafygreen-ui-1kp3ins">
Copy the following filter document into the query bar and click
<span class="guilabel css-h15tq0">
Find
</span>
:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ item: \"paper\" }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-attr">item</span>: <span class="lg-highlight-string">"paper"</span> }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
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<clippath id="clip0_2131_12968">
<rect fill="white" height="18.427" transform="translate(0 6)" width="30">
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</svg>
<div class="leafygreen-ui-obh8q1">
<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
</div>
</div>
<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
</path>
</svg>
</div>
</button>
<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
</div>
</div>
</div>
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<div class="figure css-5vkxs0" style="width:auto">
<div class="gatsby-image-wrapper gatsby-image-wrapper-constrained leafygreen-ui-12xaq6r" data-gatsby-image-wrapper="">
<div style="max-width:1500px;display:block">
<img alt="" aria-hidden="true" role="presentation" src="data:image/svg+xml;charset=utf-8,%3Csvg%20height='526'%20width='1500'%20xmlns='http://www.w3.org/2000/svg'%20version='1.1'%3E%3C/svg%3E" style="max-width:100%;display:block;position:static"/>
</div>
<div aria-hidden="true" data-placeholder-image="" style="opacity:1;transition:opacity 500ms linear">
</div>
<img alt="Compass Find button" data-main-image="" decoding="async" height="526" loading="lazy" sizes="(min-width: 1500px) 1500px, 100vw" src="/docs/manual/static/4cbfe23b7472ef27497931def993e800/fe3b4/compass-delete-paper-find.webp" srcset="/docs/manual/static/4cbfe23b7472ef27497931def993e800/605d9/compass-delete-paper-find.webp 375w,/docs/manual/static/4cbfe23b7472ef27497931def993e800/f2291/compass-delete-paper-find.webp 750w,/docs/manual/static/4cbfe23b7472ef27497931def993e800/fe3b4/compass-delete-paper-find.webp 1500w" style="--border-color:#C1C7C6;opacity:0" width="1500"/>
<noscript>
<img alt="Compass Find button" data-gatsby-image-ssr="" data-main-image="" decoding="async" height="526" loading="lazy" sizes="(min-width: 1500px) 1500px, 100vw" src="/docs/manual/static/4cbfe23b7472ef27497931def993e800/fe3b4/compass-delete-paper-find.webp" srcset="/docs/manual/static/4cbfe23b7472ef27497931def993e800/605d9/compass-delete-paper-find.webp 375w,/docs/manual/static/4cbfe23b7472ef27497931def993e800/f2291/compass-delete-paper-find.webp 750w,/docs/manual/static/4cbfe23b7472ef27497931def993e800/fe3b4/compass-delete-paper-find.webp 1500w" style="--border-color:#C1C7C6;opacity:0" width="1500"/>
</noscript>
<script type="module">
const t="undefined"!=typeof HTMLImageElement&&"loading"in HTMLImageElement.prototype;if(t){const t=document.querySelectorAll("img[data-main-image]");for(let e of t){e.dataset.src&&(e.setAttribute("src",e.dataset.src),e.removeAttribute("data-src")),e.dataset.srcset&&(e.setAttribute("srcset",e.dataset.srcset),e.removeAttribute("data-srcset"));const t=e.parentNode.querySelectorAll("source[data-srcset]");for(let e of t)e.setAttribute("srcset",e.dataset.srcset),e.removeAttribute("data-srcset");e.complete&&(e.style.opacity=1,e.parentNode.parentNode.querySelector("[data-placeholder-image]").style.opacity=0)}}
</script>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Hover over the document and click the trash icon which
appears on the right-hand side:
</p>
<div class="figure css-5vkxs0" style="width:auto">
<div class="gatsby-image-wrapper gatsby-image-wrapper-constrained leafygreen-ui-12xaq6r" data-gatsby-image-wrapper="">
<div style="max-width:1656px;display:block">
<img alt="" aria-hidden="true" role="presentation" src="data:image/svg+xml;charset=utf-8,%3Csvg%20height='592'%20width='1656'%20xmlns='http://www.w3.org/2000/svg'%20version='1.1'%3E%3C/svg%3E" style="max-width:100%;display:block;position:static"/>
</div>
<div aria-hidden="true" data-placeholder-image="" style="opacity:1;transition:opacity 500ms linear">
</div>
<img alt="Compass Delete Document button" data-main-image="" decoding="async" height="592" loading="lazy" sizes="(min-width: 1656px) 1656px, 100vw" src="/docs/manual/static/07e316d448d65cc43933514032f164a5/d6e52/compass-delete-button-click.webp" srcset="/docs/manual/static/07e316d448d65cc43933514032f164a5/e92a5/compass-delete-button-click.webp 414w,/docs/manual/static/07e316d448d65cc43933514032f164a5/ec07c/compass-delete-button-click.webp 828w,/docs/manual/static/07e316d448d65cc43933514032f164a5/d6e52/compass-delete-button-click.webp 1656w" style="--border-color:#C1C7C6;opacity:0" width="1656"/>
<noscript>
<img alt="Compass Delete Document button" data-gatsby-image-ssr="" data-main-image="" decoding="async" height="592" loading="lazy" sizes="(min-width: 1656px) 1656px, 100vw" src="/docs/manual/static/07e316d448d65cc43933514032f164a5/d6e52/compass-delete-button-click.webp" srcset="/docs/manual/static/07e316d448d65cc43933514032f164a5/e92a5/compass-delete-button-click.webp 414w,/docs/manual/static/07e316d448d65cc43933514032f164a5/ec07c/compass-delete-button-click.webp 828w,/docs/manual/static/07e316d448d65cc43933514032f164a5/d6e52/compass-delete-button-click.webp 1656w" style="--border-color:#C1C7C6;opacity:0" width="1656"/>
</noscript>
<script type="module">
const t="undefined"!=typeof HTMLImageElement&&"loading"in HTMLImageElement.prototype;if(t){const t=document.querySelectorAll("img[data-main-image]");for(let e of t){e.dataset.src&&(e.setAttribute("src",e.dataset.src),e.removeAttribute("data-src")),e.dataset.srcset&&(e.setAttribute("srcset",e.dataset.srcset),e.removeAttribute("data-srcset"));const t=e.parentNode.querySelectorAll("source[data-srcset]");for(let e of t)e.setAttribute("srcset",e.dataset.srcset),e.removeAttribute("data-srcset");e.complete&&(e.style.opacity=1,e.parentNode.parentNode.querySelector("[data-placeholder-image]").style.opacity=0)}}
</script>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
After clicking the delete button, the document is flagged
for deletion and Compass asks for confirmation that you
want to remove the document:
</p>
<div class="figure css-5vkxs0" style="width:auto">
<div class="gatsby-image-wrapper gatsby-image-wrapper-constrained leafygreen-ui-12xaq6r" data-gatsby-image-wrapper="">
<div style="max-width:1500px;display:block">
<img alt="" aria-hidden="true" role="presentation" src="data:image/svg+xml;charset=utf-8,%3Csvg%20height='600'%20width='1500'%20xmlns='http://www.w3.org/2000/svg'%20version='1.1'%3E%3C/svg%3E" style="max-width:100%;display:block;position:static"/>
</div>
<div aria-hidden="true" data-placeholder-image="" style="opacity:1;transition:opacity 500ms linear">
</div>
<img alt="Compass Confirm Deletion button" data-main-image="" decoding="async" height="600" loading="lazy" sizes="(min-width: 1500px) 1500px, 100vw" src="/docs/manual/static/c19df493f4d2653b3ade25877acc5b17/02143/compass-delete-confirm.webp" srcset="/docs/manual/static/c19df493f4d2653b3ade25877acc5b17/9388e/compass-delete-confirm.webp 375w,/docs/manual/static/c19df493f4d2653b3ade25877acc5b17/0fc4b/compass-delete-confirm.webp 750w,/docs/manual/static/c19df493f4d2653b3ade25877acc5b17/02143/compass-delete-confirm.webp 1500w" style="--border-color:#C1C7C6;opacity:0" width="1500"/>
<noscript>
<img alt="Compass Confirm Deletion button" data-gatsby-image-ssr="" data-main-image="" decoding="async" height="600" loading="lazy" sizes="(min-width: 1500px) 1500px, 100vw" src="/docs/manual/static/c19df493f4d2653b3ade25877acc5b17/02143/compass-delete-confirm.webp" srcset="/docs/manual/static/c19df493f4d2653b3ade25877acc5b17/9388e/compass-delete-confirm.webp 375w,/docs/manual/static/c19df493f4d2653b3ade25877acc5b17/0fc4b/compass-delete-confirm.webp 750w,/docs/manual/static/c19df493f4d2653b3ade25877acc5b17/02143/compass-delete-confirm.webp 1500w" style="--border-color:#C1C7C6;opacity:0" width="1500"/>
</noscript>
<script type="module">
const t="undefined"!=typeof HTMLImageElement&&"loading"in HTMLImageElement.prototype;if(t){const t=document.querySelectorAll("img[data-main-image]");for(let e of t){e.dataset.src&&(e.setAttribute("src",e.dataset.src),e.removeAttribute("data-src")),e.dataset.srcset&&(e.setAttribute("srcset",e.dataset.srcset),e.removeAttribute("data-srcset"));const t=e.parentNode.querySelectorAll("source[data-srcset]");for(let e of t)e.setAttribute("srcset",e.dataset.srcset),e.removeAttribute("data-srcset");e.complete&&(e.style.opacity=1,e.parentNode.parentNode.querySelector("[data-placeholder-image]").style.opacity=0)}}
</script>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Click
<span class="guilabel css-h15tq0">
Delete
</span>
to confirm. Compass deletes the
document from the collection.
</p>
</li>
</ol>
</div>
</div>
</div>
<div>
<div aria-labelledby="_v1vltptwk" class="leafygreen-ui-38lglc" id="_uppb764hs" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"mongoc_collection_t *collection;\nbson_t *selector;\nbool r;\nbson_error_t error;\n\ncollection = mongoc_database_get_collection (db, \"inventory\");\nselector = BCON_NEW (\"status\", BCON_UTF8 (\"D\"));\n\nr = mongoc_collection_delete_one (collection, selector, NULL, NULL, &error);\nbson_destroy (selector);\n\nif (!r) {\n MONGOC_ERROR (\"%s\\n\", error.message);\n goto done;\n}","programmingLanguage":"C"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">mongoc_collection_t *collection;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">bson_t *selector;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">bool r;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">bson_error_t error;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">collection <!-- -->= <!-- -->mongoc_database_get_collection (db<!-- -->, <span class="lg-highlight-string">"inventory"</span>);</td></tr><tr class=""><td class="leafygreen-ui-7razhx">selector <!-- -->= <!-- --><span class="lg-highlight-variable lg-highlight-constant">BCON_NEW</span> (<!-- --><!-- --><span class="lg-highlight-string">"status"</span>, <span class="lg-highlight-variable lg-highlight-constant">BCON_UTF8</span> <!-- -->(<span class="lg-highlight-string">"D"</span>));</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">r <!-- -->= <!-- -->mongoc_collection_delete_one (collection, selector<!-- -->, <span class="lg-highlight-variable lg-highlight-constant">NULL</span>, <span class="lg-highlight-variable lg-highlight-constant">NULL</span>, &error);</td></tr><tr class=""><td class="leafygreen-ui-7razhx">bson_destroy <!-- -->(<!-- -->selector);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">if</span> <!-- -->(<!-- -->!r) {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- --><span class="lg-highlight-variable lg-highlight-constant">MONGOC_ERROR</span> (<span class="lg-highlight-string">"%s</span><!-- --><span class="lg-highlight-string">\n</span><span class="lg-highlight-string">"</span>, error.<span class="lg-highlight-property">message</span>);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> goto done;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-1366-menu" aria-describedby="select-1366-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-1367" type="button" value="Node.js">
<div class="leafygreen-ui-v038xi">
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<div class="leafygreen-ui-obh8q1">
<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
</div>
</div>
<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M8.67903 10.7962C8.45271 11.0679 8.04729 11.0679 7.82097 10.7962L4.63962 6.97649C4.3213 6.59428 4.5824 6 5.06866 6L11.4313 6C11.9176 6 12.1787 6.59428 11.8604 6.97649L8.67903 10.7962Z" fill="currentColor">
</path>
</svg>
</div>
</button>
<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
</div>
</div>
</div>
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Be sure to also clean up any open resources by calling the
following methods, as appropriate:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://mongoc.org/libbson/current/bson_destroy.html" rel="noopener noreferrer">
<span>
bson_destroy
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
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</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongoc.org/libmongoc/current/mongoc_bulk_operation_destroy.html" rel="noopener noreferrer">
<span>
mongoc_bulk_operation_destroy
</span>
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{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"var filter = Builders<bsondocument>.Filter.Eq(\"status\", \"D\");\nvar result = collection.DeleteOne(filter);","programmingLanguage":"C#"}
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> filter = <span class="lg-highlight-title lg-highlight-class">Builders</span><<span class="lg-highlight-title lg-highlight-class">BsonDocument</span>>.<span class="lg-highlight-property">Filter</span>.<span class="lg-highlight-title lg-highlight-class">Eq</span>(<span class="lg-highlight-string">"status"</span>, <span class="lg-highlight-string">"D"</span>);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> result = collection.<span class="lg-highlight-title lg-highlight-class">DeleteOne</span>(filter);</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">result<!-- -->, <!-- -->err := coll.<span class="lg-highlight-title lg-highlight-class">DeleteOne</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> context.<span class="lg-highlight-title lg-highlight-function">TODO</span>(),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> bson.<span class="lg-highlight-property">D</span>{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {<span class="lg-highlight-string">"status"</span>, <span class="lg-highlight-string">"D"</span>},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">Publisher</span><<span class="lg-highlight-title lg-highlight-class">DeleteResult</span>> deleteOnePublisher = collection.<span class="lg-highlight-title lg-highlight-function">deleteOne</span>(<span class="lg-highlight-title lg-highlight-function">eq</span>(<span class="lg-highlight-string">"status"</span>, <span class="lg-highlight-string">"D"</span>));</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">await</span> db.<span class="lg-highlight-property">inventory</span>.<span class="lg-highlight-title lg-highlight-function">delete_one</span>({<span class="lg-highlight-string">"status"</span>: <span class="lg-highlight-string">"D"</span>})</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">await</span> db.<span class="lg-highlight-title lg-highlight-function">collection</span>(<span class="lg-highlight-string">'inventory'</span>).<span class="lg-highlight-title lg-highlight-function">deleteOne</span>(<!-- -->{ <span class="lg-highlight-attr">status</span>: <span class="lg-highlight-string">'D'</span> })<!-- -->;</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">$db<!-- -->-<!-- -->><!-- --><!-- --><span class="lg-highlight-title lg-highlight-function">coll</span>(<span class="lg-highlight-string">"inventory"</span>)<!-- -->-<!-- -->><!-- --><!-- --><span class="lg-highlight-title lg-highlight-function">delete_one</span>( <!-- -->{ <span class="lg-highlight-params lg-highlight-function">status</span><!-- --><span class="lg-highlight-function"> =></span> <span class="lg-highlight-string">"D"</span> } );</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">$deleteResult = $db->inventory-<!-- -->><span class="lg-highlight-title lg-highlight-function">deleteOne</span>([<span class="lg-highlight-string">'status'</span> => <span class="lg-highlight-string">'D'</span>]);</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">inventory</span>.<span class="lg-highlight-title lg-highlight-function">delete_one</span>({<span class="lg-highlight-string">"status"</span>: <span class="lg-highlight-string">"D"</span>})</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">client<!-- -->[<!-- -->:inventory].<span class="lg-highlight-title lg-highlight-function">delete_one</span>(<span class="lg-highlight-attr">status</span>: <span class="lg-highlight-string">'D'</span>)</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">collection.<span class="lg-highlight-title lg-highlight-function">deleteOne</span>(<span class="lg-highlight-title lg-highlight-function">equal</span>(<span class="lg-highlight-string">"status"</span>, <span class="lg-highlight-string">"D"</span>)).<span class="lg-highlight-title lg-highlight-function">execute</span>()</td></tr></tbody></table></code></pre>
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Node.js
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<span class="leafygreen-ui-1qnjd6d" id="std-label-delete-documents-atlas-ui">
</span>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Delete a Document with MongoDB Atlas
<a class="headerlink leafygreen-ui-1kepx47" href="#delete-a-document-with-mongodb-atlas" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="delete-a-document-with-mongodb-atlas">
</div>
</a>
</h2>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
You can delete only one document at a time in the MongoDB Atlas UI.
To delete multiple documents, connect to your
Atlas deployment from
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
or a MongoDB driver
and follow the examples on this page for your preferred method.
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The example in this section uses the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/sample-data/sample-mflix/" target="_self">
<span>
sample movies dataset
</span>
</a>
. To learn how to load the sample dataset
into your MongoDB Atlas deployment, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/sample-data/#std-label-load-sample-data" target="_self">
<span>
Load Sample Data
<!-- -->
.
</span>
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
To delete a document in MongoDB Atlas, follow these steps:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"HowTo","steps":[{"@type":"HowToStep","text":"If it's not already displayed, select the organization that\ncontains your desired project from the Organizations menu in the\nnavigation bar.If it's not already displayed, select your project\nfrom the Projects menu in the navigation bar.If it's not already displayed, click Clusters in the\nsidebar.The Clusters page displays.","name":"In the MongoDB Atlas UI, go to the Clusters page for your project."},{"@type":"HowToStep","text":"For the cluster that contains the sample data,\nclick Browse Collections.In the left navigation pane, select the\nsample_mflix database.Select the movies collection.","name":"Navigate to the collection."},{"@type":"HowToStep","text":"Optionally, you can specify a query filter document\nin the Filter field. A query filter document uses\nquery operators to specify search conditions.Copy the following query filter document into the\nFilter search bar and click Apply:This query filter returns all documents in the sample_mflix.movies\ncollection where genres equals Action and rated equals either\nPG or PG-13.","name":"Specify a query filter document."},{"@type":"HowToStep","text":"For the document that you want to delete, hover over\nthe document and click the trash icon that\nappears on the right-hand side.After clicking the delete button, MongoDB Atlas flags\nthe document for deletion and asks for your confirmation.Click Delete to confirm your selection.","name":"Delete a document."}],"name":"Delete a Document with MongoDB Atlas","image":"https://webimages.mongodb.com/_com_assets/cms/kuyj2focmkbxv7gh3-stacked_default_slate_blue.svg?auto=format%252Ccompress"}
</script>
<div class="css-4nyere eccljxs0">
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
1
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
In the MongoDB Atlas UI, go to the
<span class="guilabel css-h15tq0">
Clusters
</span>
page for your project.
<a class="headerlink leafygreen-ui-1kepx47" href="#in-the-mongodb-atlas-ui--go-to-the-clusters-page-for-your-project." title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="in-the-mongodb-atlas-ui--go-to-the-clusters-page-for-your-project.">
</div>
</a>
</h3>
<ol class="leafygreen-ui-rioki0" type="a">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
If it's not already displayed, select the organization that
contains your desired project from the
<i class="mms-icon-office mms-icon">
</i>
<span class="guilabel css-h15tq0">
Organizations
</span>
menu
<!-- -->
in the
navigation bar.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
If it's not already displayed, select your project
from the
<span class="guilabel css-h15tq0">
Projects
</span>
menu in the navigation bar.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
If it's not already displayed, click
<span class="guilabel css-h15tq0">
Clusters
</span>
in the
sidebar.
</p>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://cloud.mongodb.com/go?l=https%3A%2F%2Fcloud.mongodb.com%2Fv2%2F%3Cproject%3E%23%2Fclusters" target="_self">
<span>
Clusters
</span>
</a>
page displays.
</p>
</li>
</ol>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
2
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Navigate to the collection.
<a class="headerlink leafygreen-ui-1kepx47" href="#navigate-to-the-collection." title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="navigate-to-the-collection.">
</div>
</a>
</h3>
<ol class="leafygreen-ui-rioki0" type="a">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For the cluster that contains the sample data,
click
<span class="guilabel css-h15tq0">
Browse Collections
</span>
.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
In the left navigation pane, select the
<code class="leafygreen-ui-1l06pbn">
sample_mflix
</code>
database.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Select the
<code class="leafygreen-ui-1l06pbn">
movies
</code>
collection.
</p>
</li>
</ol>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
3
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Specify a query filter document.
<a class="headerlink leafygreen-ui-1kepx47" href="#specify-a-query-filter-document." title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="specify-a-query-filter-document.">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Optionally, you can specify a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-query-filter">
query filter document
</a>
in the
<span class="guilabel css-h15tq0">
Filter
</span>
field. A query filter document uses
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/csfle/reference/supported-operations/#std-label-csfle-supported-query-operators">
query operators
</a>
to specify search conditions.
</p>
<p class="leafygreen-ui-1kp3ins">
Copy the following query filter document into the
<span class="guilabel css-h15tq0">
Filter
</span>
search bar and click
<span class="guilabel css-h15tq0">
Apply
</span>
:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ genres: \"Action\", rated: { $in: [ \"PG\", \"PG-13\" ] } }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-attr">genres</span>: <span class="lg-highlight-string">"Action"</span>, <span class="lg-highlight-attr">rated</span>: <!-- -->{ <span class="lg-highlight-attr">$in</span>: <!-- -->[ <span class="lg-highlight-string">"PG"</span>, <span class="lg-highlight-string">"PG-13"</span> ] } }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
This query filter returns all documents in the
<code class="leafygreen-ui-1l06pbn">
sample_mflix.movies
</code>
collection where
<code class="leafygreen-ui-1l06pbn">
genres
</code>
equals
<code class="leafygreen-ui-1l06pbn">
Action
</code>
and
<code class="leafygreen-ui-1l06pbn">
rated
</code>
equals either
<code class="leafygreen-ui-1l06pbn">
PG
</code>
or
<code class="leafygreen-ui-1l06pbn">
PG-13
</code>
.
</p>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
4
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Delete a document.
<a class="headerlink leafygreen-ui-1kepx47" href="#delete-a-document." title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="delete-a-document.">
</div>
</a>
</h3>
<ol class="leafygreen-ui-rioki0" type="a">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For the document that you want to delete, hover over
the document and click the trash icon that
appears on the right-hand side.
</p>
<p class="leafygreen-ui-1kp3ins">
After clicking the delete button, MongoDB Atlas flags
the document for deletion and asks for your confirmation.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Click
<span class="guilabel css-h15tq0">
Delete
</span>
to confirm your selection.
</p>
</li>
</ol>
</section>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To learn more, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/atlas-ui/documents/" target="_self">
<span>
Create, View, Update, and Delete Documents
<!-- -->
.
</span>
</a>
</p>
<span class="leafygreen-ui-1qnjd6d" id="std-label-write-op-delete-behavior">
</span>
<span class="leafygreen-ui-1qnjd6d" id="std-label-write-op-remove-behavior">
</span>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Delete Behavior
<a class="headerlink leafygreen-ui-1kepx47" href="#delete-behavior" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="delete-behavior">
</div>
</a>
</h2>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Indexes
<a class="headerlink leafygreen-ui-1kepx47" href="#indexes" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="indexes">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Delete operations do not drop indexes, even if deleting all documents
from a collection.
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Atomicity
<a class="headerlink leafygreen-ui-1kepx47" href="#atomicity" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="atomicity">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
All write operations in MongoDB are atomic on the level of a single
document. For more information on MongoDB and atomicity, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/write-operations-atomicity/">
Atomicity and Transactions
<!-- -->
.
</a>
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Write Acknowledgement
<a class="headerlink leafygreen-ui-1kepx47" href="#write-acknowledgement" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="write-acknowledgement">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
With write concerns, you can specify the level of acknowledgment
requested from MongoDB for write operations. For details, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/write-concern/">
Write Concern
<!-- -->
.
</a>
</p>
<div aria-hidden="true">
</div>
<div class="leafygreen-ui-f2qztv" data-lgid="lg-tabs">
<div class="leafygreen-ui-jp7pox" id="tabs-54">
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Compass
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</button>
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C#
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Go
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Java (Async)
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Java (Sync)
</div>
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Kotlin (Coroutine)
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Motor
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Node.js
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Perl
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PHP
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Python
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Ruby
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</button>
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Scala
</div>
</button>
</div>
<div class="leafygreen-ui-ov1ktg">
<div class="leafygreen-ui-1sg2lsz">
</div>
</div>
</div>
<div class="lg-ui-tab-panels-0000" data-lgid="lg-tabs-tab_panels">
<div>
<div aria-labelledby="_7x34rv09s" class="leafygreen-ui-38lglc" id="_xyexjswvw" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.deleteMany/#mongodb-method-db.collection.deleteMany">
<code class="leafygreen-ui-1l06pbn">
db.collection.deleteMany()
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.deleteOne/#mongodb-method-db.collection.deleteOne">
<code class="leafygreen-ui-1l06pbn">
db.collection.deleteOne()
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/delete-methods/#std-label-additional-deletes">
Additional Methods
</a>
</p>
</li>
</ul>
</div>
</div>
</div>
</div>
</div>
<div>
<div aria-labelledby="_c4i5regh6" class="leafygreen-ui-38lglc" id="_chrz3vndw" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/compass/current/documents/" target="_self">
<span>
Compass Documents
</span>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/compass/current/query/filter/#std-label-compass-query-bar" target="_self">
<span>
Compass Query Bar
</span>
</a>
</p>
</li>
</ul>
</div>
</div>
</div>
</div>
</div>
<div>
<div aria-labelledby="_8z2537fei" class="leafygreen-ui-38lglc" id="_wnhpatzri" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongoc.org/libmongoc/current/mongoc_collection_delete_one.html" rel="noopener noreferrer">
<span>
mongoc_collection_delete_one
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongoc.org/libmongoc/current/mongoc_collection_delete_many.html" rel="noopener noreferrer">
<span>
mongoc_collection_delete_many
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/delete-methods/#std-label-additional-deletes">
Additional Methods
</a>
</p>
</li>
</ul>
</div>
</div>
</div>
</div>
</div>
<div>
<div aria-labelledby="_znbyzzncn" class="leafygreen-ui-38lglc" id="_gbcni2tdn" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-csharp-driver/2.10/apidocs/html/M_MongoDB_Driver_IMongoCollection_1_DeleteMany.htm" rel="noopener noreferrer">
<span>
IMongoCollection.DeleteMany()
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-csharp-driver/2.10/apidocs/html/M_MongoDB_Driver_IMongoCollection_1_DeleteOne.htm" rel="noopener noreferrer">
<span>
IMongoCollection.DeleteOne()
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/delete-methods/#std-label-additional-deletes">
Additional Methods
</a>
</p>
</li>
</ul>
</div>
</div>
</div>
</div>
</div>
<div>
<div aria-labelledby="_5y7twr6rp" class="leafygreen-ui-38lglc" id="_j4cslz1pb" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://godoc.org/github.com/mongodb/mongo-go-driver/mongo#Collection.DeleteMany" rel="noopener noreferrer">
<span>
Collection.DeleteMany
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://godoc.org/github.com/mongodb/mongo-go-driver/mongo#Collection.DeleteOne" rel="noopener noreferrer">
<span>
Collection.DeleteOne
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/delete-methods/#std-label-additional-deletes">
Additional Methods
</a>
</p>
</li>
</ul>
</div>
</div>
</div>
</div>
</div>
<div>
<div aria-labelledby="_0kbi9lr99" class="leafygreen-ui-38lglc" id="_kfbawms4t" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://mongodb.github.io/mongo-java-driver-reactivestreams/1.6/javadoc/com/mongodb/reactivestreams/client/MongoCollection.html#deleteMany(org.bson.conversions.Bson)" rel="noopener noreferrer">
<span>
com.mongodb.reactivestreams.client.MongoCollection.deleteMany
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://mongodb.github.io/mongo-java-driver-reactivestreams/1.6/javadoc/com/mongodb/reactivestreams/client/MongoCollection.html#deleteOne(org.bson.conversions.Bson)" rel="noopener noreferrer">
<span>
com.mongodb.reactivestreams.client.MongoCollection.deleteOne
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://mongodb.github.io/mongo-java-driver-reactivestreams/1.6/getting-started/quick-tour/" rel="noopener noreferrer">
<span>
Java Reactive Streams Driver Quick Tour
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
</ul>
</div>
</div>
</div>
</div>
</div>
<div>
<div aria-labelledby="_rw5fks0ul" class="leafygreen-ui-38lglc" id="_87ckcrxy2" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/MongoCollection.html#deleteMany-org.bson.conversions.Bson-" rel="noopener noreferrer">
<span>
com.mongodb.client.MongoCollection.deleteMany
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/3.4/javadoc/com/mongodb/client/MongoCollection.html#deleteOne-org.bson.conversions.Bson-" rel="noopener noreferrer">
<span>
com.mongodb.client.MongoCollection.deleteOne
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://mongodb.github.io/mongo-java-driver/3.4/driver/tutorials/perform-write-operations/" rel="noopener noreferrer">
<span>
Additional Java Synchronous Driver Write Examples
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
</ul>
</div>
</div>
</div>
</div>
</div>
<div>
<div aria-labelledby="_u1hkgkrix" class="leafygreen-ui-38lglc" id="_qk3jdhdvs" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/4.11/apidocs/mongodb-driver-kotlin-coroutine/mongodb-driver-kotlin-coroutine/com.mongodb.kotlin.client.coroutine/-mongo-collection/delete-one.html" rel="noopener noreferrer">
<span>
MongoCollection.deleteOne()
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://mongodb.github.io/mongo-java-driver/4.11/apidocs/mongodb-driver-kotlin-coroutine/mongodb-driver-kotlin-coroutine/com.mongodb.kotlin.client.coroutine/-mongo-collection/delete-many.html" rel="noopener noreferrer">
<span>
MongoCollection.deleteMany()
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/drivers/kotlin/coroutine/current/fundamentals/crud/write-operations/delete/" target="_self">
<span>
Kotlin Coroutine Driver Delete Documents Guide
</span>
</a>
</p>
</li>
</ul>
</div>
</div>
</div>
</div>
</div>
<div>
<div aria-labelledby="_f1vt6isnj" class="leafygreen-ui-38lglc" id="_qzmzilaug" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://motor.readthedocs.io/en/stable/api-asyncio/asyncio_motor_collection.html#motor.motor_asyncio.AsyncIOMotorCollection.delete_many" rel="noopener noreferrer">
<span>
<code class="leafygreen-ui-1l06pbn">
motor.motor_asyncio.AsyncIOMotorCollection.delete_many
</code>
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://motor.readthedocs.io/en/stable/api-asyncio/asyncio_motor_collection.html#motor.motor_asyncio.AsyncIOMotorCollection.delete_one" rel="noopener noreferrer">
<span>
<code class="leafygreen-ui-1l06pbn">
motor.motor_asyncio.AsyncIOMotorCollection.delete_one
</code>
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/delete-methods/#std-label-additional-deletes">
Additional Methods
</a>
</p>
</li>
</ul>
</div>
</div>
</div>
</div>
</div>
<div>
<div aria-labelledby="_2a8bc34bu" class="" id="_f9ohyy8cb" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://mongodb.github.io/node-mongodb-native/3.6/api/Collection.html#deleteMany" rel="noopener noreferrer">
<span>
Collection.deleteMany()
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://mongodb.github.io/node-mongodb-native/3.6/api/Collection.html#deleteOne" rel="noopener noreferrer">
<span>
Collection.deleteOne()
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/delete-methods/#std-label-additional-deletes">
Additional Methods
</a>
</p>
</li>
</ul>
</div>
</div>
</div>
</div>
</div>
<div>
<div aria-labelledby="_yeqbeeytk" class="leafygreen-ui-38lglc" id="_8gg97nd8a" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://metacpan.org/pod/MongoDB::Collection#delete_many" rel="noopener noreferrer">
<span>
MongoDB::Collection::delete_many()
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://metacpan.org/pod/MongoDB::Collection#delete_one" rel="noopener noreferrer">
<span>
MongoDB::Collection::delete_one()
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/delete-methods/#std-label-additional-deletes">
Additional Methods
</a>
</p>
</li>
</ul>
</div>
</div>
</div>
</div>
</div>
<div>
<div aria-labelledby="_hk4awm9a6" class="leafygreen-ui-38lglc" id="_8y5ddqcb0" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/php-library/upcoming/reference/method/MongoDBCollection-deleteMany/#mongodb-phpmethod-phpmethod.MongoDB-Collection--deleteMany--" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
MongoDB\\Collection::deleteMany()
</code>
</span>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/php-library/upcoming/reference/method/MongoDBCollection-deleteOne/#mongodb-phpmethod-phpmethod.MongoDB-Collection--deleteOne--" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
MongoDB\\Collection::deleteOne()
</code>
</span>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/delete-methods/#std-label-additional-deletes">
Additional Methods
</a>
</p>
</li>
</ul>
</div>
</div>
</div>
</div>
</div>
<div>
<div aria-labelledby="_2lx1eilno" class="leafygreen-ui-38lglc" id="_q3u2j216r" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://pymongo.readthedocs.io/en/stable/api/pymongo/collection.html#pymongo.collection.Collection.delete_many" rel="noopener noreferrer">
<span>
<code class="leafygreen-ui-1l06pbn">
pymongo.collection.Collection.delete_many
</code>
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://pymongo.readthedocs.io/en/stable/api/pymongo/collection.html#pymongo.collection.Collection.delete_one" rel="noopener noreferrer">
<span>
<code class="leafygreen-ui-1l06pbn">
pymongo.collection.Collection.delete_one
</code>
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/delete-methods/#std-label-additional-deletes">
Additional Methods
</a>
</p>
</li>
</ul>
</div>
</div>
</div>
</div>
</div>
<div>
<div aria-labelledby="_bpidkxov2" class="leafygreen-ui-38lglc" id="_vbqo4bpl2" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://api.mongodb.com/ruby/current/Mongo/Collection.html#delete_many-instance_method" target="_self">
<span>
Mongo::Collection#delete_many()
</span>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://api.mongodb.com/ruby/current/Mongo/Collection.html#delete_one-instance_method" target="_self">
<span>
Mongo::Collection#delete_one()
</span>
</a>
</p>
</li>
</ul>
</div>
</div>
</div>
</div>
</div>
<div>
<div aria-labelledby="_bflbukpc4" class="leafygreen-ui-38lglc" id="_eho4xve23" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://mongodb.github.io/mongo-scala-driver/2.9/scaladoc/org/mongodb/scala/MongoCollection.html#deleteMany(filter:org.mongodb.scala.bson.conversions.Bson,options:org.mongodb.scala.model.DeleteOptions):org.mongodb.scala.SingleObservable[org.mongodb.scala.result.DeleteResult]" rel="noopener noreferrer">
<span>
collection.deleteMany()
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://mongodb.github.io/mongo-scala-driver/2.9/scaladoc/org/mongodb/scala/MongoCollection.html#deleteOne(filter:org.mongodb.scala.bson.conversions.Bson,options:org.mongodb.scala.model.DeleteOptions):org.mongodb.scala.SingleObservable[org.mongodb.scala.result.DeleteResult]" rel="noopener noreferrer">
<span>
collection.deleteOne()
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/delete-methods/#std-label-additional-deletes">
Additional Methods
</a>
</p>
</li>
</ul>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</section>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/method/cursor.min/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
cursor.min()
<a class="headerlink leafygreen-ui-1kepx47" href="#cursor.min--" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="cursor.min--">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#definition" target="_self">
<span>
Definition
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#behaviors" target="_self">
<span>
Behaviors
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#example" target="_self">
<span>
Example
</span>
</a>
</li>
</ul>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Definition
<a class="headerlink leafygreen-ui-1kepx47" href="#definition" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="definition">
</div>
</a>
</h2>
<dl class="method">
<dt>
<code class="leafygreen-ui-1l06pbn">
cursor.min()
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-method-cursor.min" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-method-cursor.min">
</div>
</a>
</dt>
<dd>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
mongosh Method
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
This page documents a
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
method. This is
<em>
not
</em>
the documentation for a language-specific driver, such as Node.js.
</p>
<p class="leafygreen-ui-1kp3ins">
For MongoDB API drivers, refer to the language-specific
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/drivers/" target="_self">
<span>
MongoDB driver documentation
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Specifies the
<em>
inclusive
</em>
lower bound for a specific index in order
to constrain the results of
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.find/#mongodb-method-db.collection.find">
<code class="leafygreen-ui-1l06pbn">
find()
</code>
</a>
.
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-cursor.min" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
min()
</code>
</span>
</a>
provides a
way to specify lower bounds on compound key indexes.
</p>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-cursor.min" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
min()
</code>
</span>
</a>
method has the following parameter:
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:20%"/>
<col style="width:20%"/>
<col style="width:80%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Parameter
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Type
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
indexBounds
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
document
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
The inclusive lower bound for the index keys.
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
indexBounds
</code>
parameter has the following prototype form:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ field1: <min>, field2: <min>, fieldN:<min> }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-attr">field1</span>: <!-- --><min value>, field2: <min value2>, fieldN:<min valueN> }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</dd>
</dl>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
Index Use
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
To use an index with the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/cursor.max/#mongodb-method-cursor.max">
<code class="leafygreen-ui-1l06pbn">
max()
</code>
</a>
method, you must use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/cursor.hint/#mongodb-method-cursor.hint">
<code class="leafygreen-ui-1l06pbn">
hint()
</code>
</a>
method to specify the index you want to use,
except when the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.find/#mongodb-method-db.collection.find">
<code class="leafygreen-ui-1l06pbn">
find()
</code>
</a>
query is an equality
condition on the
<code class="leafygreen-ui-1l06pbn">
_id
</code>
field.
</p>
</div>
</div>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/cursor.max/#mongodb-method-cursor.max">
<code class="leafygreen-ui-1l06pbn">
max()
</code>
</a>
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-cursor.min" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
min()
</code>
</span>
</a>
exists primarily to support the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
process.
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Behaviors
<a class="headerlink leafygreen-ui-1kepx47" href="#behaviors" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="behaviors">
</div>
</a>
</h2>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Interaction with Index Selection
<a class="headerlink leafygreen-ui-1kepx47" href="#interaction-with-index-selection" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="interaction-with-index-selection">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Because
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-cursor.min" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
min()
</code>
</span>
</a>
requires an index on a
field, and forces the query to use this index, you may prefer
the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/gte/#mongodb-query-op.-gte">
<code class="leafygreen-ui-1l06pbn">
$gte
</code>
</a>
operator for the query if
possible. Consider the following example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.products.find( { $in: [ 6, 7 ] } ).min( { price: NumberDecimal(\"1.39\") } ).hint( { price: 1 })","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">products</span>.<span class="lg-highlight-title lg-highlight-function">find</span>( <!-- -->{ <span class="lg-highlight-attr">$in</span>: <!-- -->[ <span class="lg-highlight-number">6</span>, <span class="lg-highlight-number">7</span> ] } ).<span class="lg-highlight-title lg-highlight-function">min</span>( <!-- -->{ <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-title lg-highlight-class">NumberDecimal</span>(<span class="lg-highlight-string">"1.39"</span>) } ).<span class="lg-highlight-title lg-highlight-function">hint</span>( <!-- -->{ <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">1</span> })</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The query will use the index on the
<code class="leafygreen-ui-1l06pbn">
price
</code>
field, even if
the index on
<code class="leafygreen-ui-1l06pbn">
_id
</code>
may be better.
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Index Bounds
<a class="headerlink leafygreen-ui-1kepx47" href="#index-bounds" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="index-bounds">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
If you use
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-cursor.min" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
min()
</code>
</span>
</a>
with
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/cursor.max/#mongodb-method-cursor.max">
<code class="leafygreen-ui-1l06pbn">
max()
</code>
</a>
to
specify a range:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
the index bounds specified in
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-cursor.min" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
min()
</code>
</span>
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/cursor.max/#mongodb-method-cursor.max">
<code class="leafygreen-ui-1l06pbn">
max()
</code>
</a>
must both refer to the keys of the same index.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
the bound specified by
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/cursor.max/#mongodb-method-cursor.max">
<code class="leafygreen-ui-1l06pbn">
max()
</code>
</a>
must be greater than
the bound specified by
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-cursor.min" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
min()
</code>
.
</span>
</a>
</p>
</li>
</ul>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
<code class="leafygreen-ui-1l06pbn">
min()
</code>
without
<code class="leafygreen-ui-1l06pbn">
max()
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#min---without-max--" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="min---without-max--">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-cursor.min" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
min()
</code>
</span>
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/cursor.max/#mongodb-method-cursor.max">
<code class="leafygreen-ui-1l06pbn">
max()
</code>
</a>
methods
indicate that the system should avoid normal query planning. They
construct an index scan where the index bounds are explicitly specified
by the values given in
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-cursor.min" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
min()
</code>
</span>
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/cursor.max/#mongodb-method-cursor.max">
<code class="leafygreen-ui-1l06pbn">
max()
</code>
.
</a>
</p>
<div class="leafygreen-ui-1sjx7ru" role="note">
<h2 class="leafygreen-ui-29m78u">
Warning
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
If one of the two boundaries is not specified, the query plan will be
an index scan that is unbounded on one side. This may degrade performance
compared to a query containing neither operator, or one that uses both
operators to more tightly constrain the index scan.
</p>
</div>
</div>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Example
<a class="headerlink leafygreen-ui-1kepx47" href="#example" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="example">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
Unless the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.find/#mongodb-method-db.collection.find">
<code class="leafygreen-ui-1l06pbn">
find()
</code>
</a>
query is an equality condition on
the
<code class="leafygreen-ui-1l06pbn">
_id
</code>
field
<code class="leafygreen-ui-1l06pbn">
{ _id: <value> }
</code>
, you must explicitly specify the
index with the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/cursor.hint/#mongodb-method-cursor.hint">
<code class="leafygreen-ui-1l06pbn">
hint()
</code>
</a>
method to run
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-cursor.min" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
min()
</code>
.
</span>
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
For the examples below, create a sample collection named
<code class="leafygreen-ui-1l06pbn">
products
</code>
that holds the
following documents:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.products.insertMany([\n { \"_id\" : 1, \"item\" : \"apple\", \"type\" : \"honey crisp\", \"price\" : NumberDecimal(\"1.99\") },\n { \"_id\" : 2, \"item\" : \"apple\", \"type\" : \"fuji\", \"price\" : NumberDecimal(\"1.99\") },\n { \"_id\" : 3, \"item\" : \"apple\", \"type\" : \"jonagold\", \"price\" : NumberDecimal(\"1.29\") },\n { \"_id\" : 4, \"item\" : \"apple\", \"type\" : \"jonathan\", \"price\" : NumberDecimal(\"1.29\") },\n { \"_id\" : 5, \"item\" : \"apple\", \"type\" : \"mcintosh\", \"price\" : NumberDecimal(\"1.29\") },\n { \"_id\" : 6, \"item\" : \"apple\", \"type\" : \"cortland\", \"price\" : NumberDecimal(\"1.29\") },\n { \"_id\" : 7, \"item\" : \"orange\", \"type\" : \"cara cara\", \"price\" : NumberDecimal(\"2.99\") },\n { \"_id\" : 9, \"item\" : \"orange\", \"type\" : \"satsuma\", \"price\" : NumberDecimal(\"1.99\") },\n { \"_id\" : 8, \"item\" : \"orange\", \"type\" : \"valencia\", \"price\" : NumberDecimal(\"0.99\") },\n { \"_id\" : 10, \"item\" : \"orange\", \"type\" : \"navel\", \"price\" : NumberDecimal(\"1.39\") }\n])","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">products</span>.<span class="lg-highlight-title lg-highlight-function">insertMany</span>(<!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-string">"item"</span> <!-- -->: <span class="lg-highlight-string">"apple"</span>, <span class="lg-highlight-string">"type"</span> <!-- -->: <span class="lg-highlight-string">"honey crisp"</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">NumberDecimal</span>(<span class="lg-highlight-string">"1.99"</span>) }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-string">"item"</span> <!-- -->: <span class="lg-highlight-string">"apple"</span>, <span class="lg-highlight-string">"type"</span> <!-- -->: <span class="lg-highlight-string">"fuji"</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">NumberDecimal</span>(<span class="lg-highlight-string">"1.99"</span>) }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">3</span>, <span class="lg-highlight-string">"item"</span> <!-- -->: <span class="lg-highlight-string">"apple"</span>, <span class="lg-highlight-string">"type"</span> <!-- -->: <span class="lg-highlight-string">"jonagold"</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">NumberDecimal</span>(<span class="lg-highlight-string">"1.29"</span>) }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">4</span>, <span class="lg-highlight-string">"item"</span> <!-- -->: <span class="lg-highlight-string">"apple"</span>, <span class="lg-highlight-string">"type"</span> <!-- -->: <span class="lg-highlight-string">"jonathan"</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">NumberDecimal</span>(<span class="lg-highlight-string">"1.29"</span>) }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-string">"item"</span> <!-- -->: <span class="lg-highlight-string">"apple"</span>, <span class="lg-highlight-string">"type"</span> <!-- -->: <span class="lg-highlight-string">"mcintosh"</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">NumberDecimal</span>(<span class="lg-highlight-string">"1.29"</span>) }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">6</span>, <span class="lg-highlight-string">"item"</span> <!-- -->: <span class="lg-highlight-string">"apple"</span>, <span class="lg-highlight-string">"type"</span> <!-- -->: <span class="lg-highlight-string">"cortland"</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">NumberDecimal</span>(<span class="lg-highlight-string">"1.29"</span>) }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">7</span>, <span class="lg-highlight-string">"item"</span> <!-- -->: <span class="lg-highlight-string">"orange"</span>, <span class="lg-highlight-string">"type"</span> <!-- -->: <span class="lg-highlight-string">"cara cara"</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">NumberDecimal</span>(<span class="lg-highlight-string">"2.99"</span>) }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">9</span>, <span class="lg-highlight-string">"item"</span> <!-- -->: <span class="lg-highlight-string">"orange"</span>, <span class="lg-highlight-string">"type"</span> <!-- -->: <span class="lg-highlight-string">"satsuma"</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">NumberDecimal</span>(<span class="lg-highlight-string">"1.99"</span>) }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">8</span>, <span class="lg-highlight-string">"item"</span> <!-- -->: <span class="lg-highlight-string">"orange"</span>, <span class="lg-highlight-string">"type"</span> <!-- -->: <span class="lg-highlight-string">"valencia"</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">NumberDecimal</span>(<span class="lg-highlight-string">"0.99"</span>) }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-string">"item"</span> <!-- -->: <span class="lg-highlight-string">"orange"</span>, <span class="lg-highlight-string">"type"</span> <!-- -->: <span class="lg-highlight-string">"navel"</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">NumberDecimal</span>(<span class="lg-highlight-string">"1.39"</span>) }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">])</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Create the following indexes for the collection:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.products.createIndexes( [\n { \"item\" : 1, \"type\" : 1 },\n { \"item\" : 1, \"type\" : -1 },\n { \"price\" : 1 }\n] )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">products</span>.<span class="lg-highlight-title lg-highlight-function">createIndexes</span>( <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"item"</span> <!-- -->: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-string">"type"</span> <!-- -->: <span class="lg-highlight-number">1</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"item"</span> <!-- -->: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-string">"type"</span> <!-- -->: <!-- -->-<span class="lg-highlight-number">1</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">1</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">] )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Using the ordering of the
<code class="leafygreen-ui-1l06pbn">
{ item: 1, type: 1 }
</code>
index,
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-cursor.min" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
min()
</code>
</span>
</a>
limits the query to the documents
that are at or above the index key bound of
<code class="leafygreen-ui-1l06pbn">
item
</code>
equal to
<code class="leafygreen-ui-1l06pbn">
apple
</code>
and
<code class="leafygreen-ui-1l06pbn">
type
</code>
equal to
<code class="leafygreen-ui-1l06pbn">
jonagold
</code>
, as in the following:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.products.find().min( { item: 'apple', type: 'jonagold' } ).hint( { item: 1, type: 1 } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">products</span>.<span class="lg-highlight-title lg-highlight-function">find</span>(<!-- -->).<span class="lg-highlight-title lg-highlight-function">min</span>( <!-- -->{ <span class="lg-highlight-attr">item</span>: <span class="lg-highlight-string">'apple'</span>, <span class="lg-highlight-attr">type</span>: <span class="lg-highlight-string">'jonagold'</span> } ).<span class="lg-highlight-title lg-highlight-function">hint</span>( <!-- -->{ <span class="lg-highlight-attr">item</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-attr">type</span>: <span class="lg-highlight-number">1</span> } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The query returns the following documents:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ \"_id\" : 3, \"item\" : \"apple\", \"type\" : \"jonagold\", \"price\" : NumberDecimal(\"1.29\") }\n{ \"_id\" : 4, \"item\" : \"apple\", \"type\" : \"jonathan\", \"price\" : NumberDecimal(\"1.29\") }\n{ \"_id\" : 5, \"item\" : \"apple\", \"type\" : \"mcintosh\", \"price\" : NumberDecimal(\"1.29\") }\n{ \"_id\" : 7, \"item\" : \"orange\", \"type\" : \"cara cara\", \"price\" : NumberDecimal(\"2.99\") }\n{ \"_id\" : 10, \"item\" : \"orange\", \"type\" : \"navel\", \"price\" : NumberDecimal(\"1.39\") }\n{ \"_id\" : 9, \"item\" : \"orange\", \"type\" : \"satsuma\", \"price\" : NumberDecimal(\"1.99\") }\n{ \"_id\" : 8, \"item\" : \"orange\", \"type\" : \"valencia\", \"price\" : NumberDecimal(\"0.99\") }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">3</span>, <span class="lg-highlight-string">"item"</span> <!-- -->: <span class="lg-highlight-string">"apple"</span>, <span class="lg-highlight-string">"type"</span> <!-- -->: <span class="lg-highlight-string">"jonagold"</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">NumberDecimal</span>(<span class="lg-highlight-string">"1.29"</span>) }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">4</span>, <span class="lg-highlight-string">"item"</span> <!-- -->: <span class="lg-highlight-string">"apple"</span>, <span class="lg-highlight-string">"type"</span> <!-- -->: <span class="lg-highlight-string">"jonathan"</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">NumberDecimal</span>(<span class="lg-highlight-string">"1.29"</span>) }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-string">"item"</span> <!-- -->: <span class="lg-highlight-string">"apple"</span>, <span class="lg-highlight-string">"type"</span> <!-- -->: <span class="lg-highlight-string">"mcintosh"</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">NumberDecimal</span>(<span class="lg-highlight-string">"1.29"</span>) }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">7</span>, <span class="lg-highlight-string">"item"</span> <!-- -->: <span class="lg-highlight-string">"orange"</span>, <span class="lg-highlight-string">"type"</span> <!-- -->: <span class="lg-highlight-string">"cara cara"</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">NumberDecimal</span>(<span class="lg-highlight-string">"2.99"</span>) }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-string">"item"</span> <!-- -->: <span class="lg-highlight-string">"orange"</span>, <span class="lg-highlight-string">"type"</span> <!-- -->: <span class="lg-highlight-string">"navel"</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">NumberDecimal</span>(<span class="lg-highlight-string">"1.39"</span>) }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">9</span>, <span class="lg-highlight-string">"item"</span> <!-- -->: <span class="lg-highlight-string">"orange"</span>, <span class="lg-highlight-string">"type"</span> <!-- -->: <span class="lg-highlight-string">"satsuma"</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">NumberDecimal</span>(<span class="lg-highlight-string">"1.99"</span>) }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">8</span>, <span class="lg-highlight-string">"item"</span> <!-- -->: <span class="lg-highlight-string">"orange"</span>, <span class="lg-highlight-string">"type"</span> <!-- -->: <span class="lg-highlight-string">"valencia"</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">NumberDecimal</span>(<span class="lg-highlight-string">"0.99"</span>) }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Using the ordering of the index
<code class="leafygreen-ui-1l06pbn">
{ price: 1 }
</code>
,
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-cursor.min" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
min()
</code>
</span>
</a>
limits the query to the documents that are at or
above the index key bound of
<code class="leafygreen-ui-1l06pbn">
price
</code>
equal to
<code class="leafygreen-ui-1l06pbn">
1.39
</code>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/cursor.max/#mongodb-method-cursor.max">
<code class="leafygreen-ui-1l06pbn">
max()
</code>
</a>
limits the query to the documents
that are below the index key bound of
<code class="leafygreen-ui-1l06pbn">
price
</code>
equal to
<code class="leafygreen-ui-1l06pbn">
1.99
</code>
:
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
The bound specified by
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/cursor.max/#mongodb-method-cursor.max">
<code class="leafygreen-ui-1l06pbn">
max()
</code>
</a>
must be greater than the
bound specified by
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-cursor.min" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
min()
</code>
.
</span>
</a>
</p>
</div>
</div>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.products.find().min( { price: NumberDecimal(\"1.39\") } ).max( { price: NumberDecimal(\"1.99\") } ).hint( { price: 1 } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">products</span>.<span class="lg-highlight-title lg-highlight-function">find</span>(<!-- -->).<span class="lg-highlight-title lg-highlight-function">min</span>( <!-- -->{ <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-title lg-highlight-class">NumberDecimal</span>(<span class="lg-highlight-string">"1.39"</span>) } ).<span class="lg-highlight-title lg-highlight-function">max</span>( <!-- -->{ <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-title lg-highlight-class">NumberDecimal</span>(<span class="lg-highlight-string">"1.99"</span>) } ).<span class="lg-highlight-title lg-highlight-function">hint</span>( <!-- -->{ <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">1</span> } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The query returns the following documents:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ \"_id\" : 10, \"item\" : \"orange\", \"type\" : \"navel\", \"price\" : NumberDecimal(\"1.39\") }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-string">"item"</span> <!-- -->: <span class="lg-highlight-string">"orange"</span>, <span class="lg-highlight-string">"type"</span> <!-- -->: <span class="lg-highlight-string">"navel"</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">NumberDecimal</span>(<span class="lg-highlight-string">"1.39"</span>) }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
</ul>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/method/sh.enableAutoSplit/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
sh.enableAutoSplit
<a class="headerlink leafygreen-ui-1kepx47" href="#sh.enableautosplit" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="sh.enableautosplit">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#description" target="_self">
<span>
Description
</span>
</a>
</li>
</ul>
</div>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 6.0.3, automatic chunk splitting is not performed.
This is because of balancing policy improvements. Auto-splitting commands
still exist, but do not perform an operation.
</p>
</div>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Description
<a class="headerlink leafygreen-ui-1kepx47" href="#description" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="description">
</div>
</a>
</h2>
<dl class="method">
<dt>
<code class="leafygreen-ui-1l06pbn">
sh.enableAutoSplit()
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-method-sh.enableAutoSplit" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-method-sh.enableAutoSplit">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Enables the autosplit flag in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/config-database/#mongodb-data-config.settings">
<code class="leafygreen-ui-1l06pbn">
config.settings
</code>
</a>
collection. When auto-splitting is enabled for a sharded cluster,
MongoDB automatically splits chunks based on the shard key values
the chunk represents to keep the chunks from growing too large.
</p>
<p class="leafygreen-ui-1kp3ins">
You can only run
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-sh.enableAutoSplit" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
sh.enableAutoSplit()
</code>
</span>
</a>
from a
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
session that is connected to a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instance.
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-sh.enableAutoSplit" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
sh.enableAutoSplit()
</code>
</span>
</a>
errors if run on a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
instance.
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 6.0.3, automatic chunk splitting is not performed.
This is because of balancing policy improvements. Auto-splitting commands
still exist, but do not perform an operation.
</p>
<p class="leafygreen-ui-1kp3ins">
In MongoDB versions earlier than 6.0.3,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/sh.startBalancer/#mongodb-method-sh.startBalancer">
<code class="leafygreen-ui-1l06pbn">
sh.startBalancer()
</code>
</a>
also enables auto-splitting for the sharded cluster.
</p>
</div>
</div>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/manage-sharded-cluster-balancer/">
Manage Sharded Cluster Balancer
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/sharding-balancer-administration/#std-label-sharding-balancing">
Sharded Cluster Balancer
</a>
</p>
</li>
</ul>
</div>
</div>
</dd>
</dl>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/operator/update/inc/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
$inc
<a class="headerlink leafygreen-ui-1kepx47" href="#-inc" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="-inc">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#definition" target="_self">
<span>
Definition
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#compatibility" target="_self">
<span>
Compatibility
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#syntax" target="_self">
<span>
Syntax
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#behavior" target="_self">
<span>
Behavior
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#example" target="_self">
<span>
Example
</span>
</a>
</li>
</ul>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Definition
<a class="headerlink leafygreen-ui-1kepx47" href="#definition" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="definition">
</div>
</a>
</h2>
<dl class="update">
<dt>
<code class="leafygreen-ui-1l06pbn">
$inc
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-update-up.-inc" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-update-up.-inc">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-update-up.-inc" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$inc
</code>
</span>
</a>
operator increments a field by a specified value.
</p>
</dd>
</dl>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Compatibility
<a class="headerlink leafygreen-ui-1kepx47" href="#compatibility" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="compatibility">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
You can use
<code class="leafygreen-ui-1l06pbn">
$inc
</code>
for deployments hosted in the following
environments:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas?tck=docs_server" target="_self">
<span>
MongoDB Atlas
</span>
</a>
: The fully
managed service for MongoDB deployments in the cloud
</p>
</li>
</ul>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/install-enterprise/#std-label-install-mdb-enterprise">
MongoDB Enterprise
</a>
: The
subscription-based, self-managed version of MongoDB
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/install-community/#std-label-install-mdb-community-edition">
MongoDB Community
</a>
: The
source-available, free-to-use, and self-managed version of MongoDB
</p>
</li>
</ul>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Syntax
<a class="headerlink leafygreen-ui-1kepx47" href="#syntax" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="syntax">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-update-up.-inc" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$inc
</code>
</span>
</a>
operator has the following form:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ $inc: { <field1>: <amount1>, <field2>: <amount2>, ... } }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-attr">$inc</span>: <!-- -->{ <<!-- -->field1<!-- -->><!-- -->: <<!-- -->amount1<!-- -->><!-- -->,<!-- --> <!-- --><<!-- -->field2<!-- -->><!-- -->: <<!-- -->amount2<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> } }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To specify a
<code class="leafygreen-ui-1l06pbn">
<field>
</code>
in an embedded document or in an array, use
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-dot-notation">
dot notation
<!-- -->
.
</a>
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Behavior
<a class="headerlink leafygreen-ui-1kepx47" href="#behavior" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="behavior">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 5.0, update operators process document fields with
string-based names in lexicographic order. Fields with numeric names are
processed in numeric order. See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/update/#std-label-update-operators-processing-order">
Update Operators Behavior
</a>
for details.
</p>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-update-up.-inc" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$inc
</code>
</span>
</a>
operator accepts positive and negative values.
</p>
<p class="leafygreen-ui-1kp3ins">
If the field does not exist,
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-update-up.-inc" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$inc
</code>
</span>
</a>
creates the field and sets
the field to the specified value.
</p>
<p class="leafygreen-ui-1kp3ins">
Use of the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-update-up.-inc" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$inc
</code>
</span>
</a>
operator on a field with a null value will
generate an error.
</p>
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-update-up.-inc" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$inc
</code>
</span>
</a>
is an atomic operation within a single document.
</p>
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 5.0,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
no longer raises an
error when you use an update operator like
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-update-up.-inc" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$inc
</code>
</span>
</a>
with an empty operand expression (
<code class="leafygreen-ui-1l06pbn">
{ }
</code>
). An empty update results
in no changes and no
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-oplog">
oplog
</a>
entry is created (meaning that the
operation is a no-op).
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Example
<a class="headerlink leafygreen-ui-1kepx47" href="#example" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="example">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
Create the
<code class="leafygreen-ui-1l06pbn">
products
</code>
collection:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.products.insertOne(\n {\n _id: 1,\n sku: \"abc123\",\n quantity: 10,\n metrics: { orders: 2, ratings: 3.5 }\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">products</span>.<span class="lg-highlight-title lg-highlight-function">insertOne</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">sku</span>: <span class="lg-highlight-string">"abc123"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">quantity</span>: <span class="lg-highlight-number">10</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">metrics</span>: <!-- -->{ <span class="lg-highlight-attr">orders</span>: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-attr">ratings</span>: <span class="lg-highlight-number">3.5</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</svg>
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</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The following
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.updateOne/#mongodb-method-db.collection.updateOne">
<code class="leafygreen-ui-1l06pbn">
updateOne()
</code>
</a>
operation uses the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-update-up.-inc" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$inc
</code>
</span>
</a>
operator to:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
increase the
<code class="leafygreen-ui-1l06pbn">
"metrics.orders"
</code>
field by 1
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
increase the
<code class="leafygreen-ui-1l06pbn">
quantity
</code>
field by -2 (which decreases
<code class="leafygreen-ui-1l06pbn">
quantity
</code>
)
</p>
</li>
</ul>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.products.updateOne(\n { sku: \"abc123\" },\n { $inc: { quantity: -2, \"metrics.orders\": 1 } }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">products</span>.<span class="lg-highlight-title lg-highlight-function">updateOne</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">sku</span>: <span class="lg-highlight-string">"abc123"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">$inc</span>: <!-- -->{ <span class="lg-highlight-attr">quantity</span>: <!-- -->-<span class="lg-highlight-number">2</span>, <span class="lg-highlight-string">"metrics.orders"</span>: <span class="lg-highlight-number">1</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The updated document would resemble:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n _id: 1,\n sku: 'abc123',\n quantity: 8,\n metrics: { orders: 3, ratings: 3.5 }\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">sku</span>: <span class="lg-highlight-string">'abc123'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">quantity</span>: <span class="lg-highlight-number">8</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">metrics</span>: <!-- -->{ <span class="lg-highlight-attr">orders</span>: <span class="lg-highlight-number">3</span>, <span class="lg-highlight-attr">ratings</span>: <span class="lg-highlight-number">3.5</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.updateMany/#mongodb-method-db.collection.updateMany">
<code class="leafygreen-ui-1l06pbn">
db.collection.updateMany()
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.findAndModify/#mongodb-method-db.collection.findAndModify">
<code class="leafygreen-ui-1l06pbn">
db.collection.findAndModify()
</code>
</a>
</p>
</li>
</ul>
</div>
</div>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/explain-results/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Explain Results
<a class="headerlink leafygreen-ui-1kepx47" href="#explain-results" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="explain-results">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#explain-output-structure" target="_self">
<span>
Explain Output Structure
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#explain-output-for-mongodb-5.1-and-later" target="_self">
<span>
Explain Output for MongoDB 5.1 and Later
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#queryplanner" target="_self">
<span>
<code class="css-1kekw28 e1wawog0">
queryPlanner
</code>
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#executionstats" target="_self">
<span>
<code class="css-1kekw28 e1wawog0">
executionStats
</code>
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#serverinfo" target="_self">
<span>
<code class="css-1kekw28 e1wawog0">
serverInfo
</code>
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#execution-plan-statistics-for-query-with--lookup-pipeline-stage" target="_self">
<span>
Execution Plan Statistics for Query with
<code class="css-1kekw28 e1wawog0">
$lookup
</code>
Pipeline Stage
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#collection-scan" target="_self">
<span>
Collection Scan
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#covered-queries" target="_self">
<span>
Covered Queries
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#-or-expression" target="_self">
<span>
<code class="css-1kekw28 e1wawog0">
$or
</code>
Expression
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#-sort-and--group-stages" target="_self">
<span>
<code class="css-1kekw28 e1wawog0">
$sort
</code>
and
<code class="css-1kekw28 e1wawog0">
$group
</code>
Stages
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#sort-stage" target="_self">
<span>
Sort Stage
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#query-shape-hash" target="_self">
<span>
Query Shape Hash
</span>
</a>
</li>
</ul>
</div>
<p class="leafygreen-ui-1kp3ins">
To return information on
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/query-plans/#std-label-query-plans-query-optimization">
query plans
</a>
and execution statistics of the query
plans, MongoDB provides the following methods:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.explain/#mongodb-method-db.collection.explain">
<code class="leafygreen-ui-1l06pbn">
db.collection.explain()
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/cursor.explain/#mongodb-method-cursor.explain">
<code class="leafygreen-ui-1l06pbn">
cursor.explain()
</code>
</a>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
To learn about important explain result fields and how to interpret
them, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/analyze-query-plan/#std-label-interpret-explain-plan">
Interpret Explain Plan Results
<!-- -->
.
</a>
</p>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
explain
</code>
ignores the plan cache. Instead, a set
of candidate plans are generated, and a winner is chosen without consulting
the plan cache. Furthermore,
<code class="leafygreen-ui-1l06pbn">
explain
</code>
prevents the MongoDB query planner
from caching the winning plan.
</p>
</div>
</div>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Only the most important output fields are shown on this page, and fields for
internal use are not documented. The fields listed in the output are subject
to change.
</p>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-explain-output-structure">
</span>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Explain Output Structure
<a class="headerlink leafygreen-ui-1kepx47" href="#explain-output-structure" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="explain-output-structure">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
explain
</code>
results present the query plans as a tree of stages.
The output structure can differ based on which query engine the
operation uses. Operations can use the classic query engine or the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/sbe/#std-label-sbe-landing">
slot-based execution query engine
<!-- -->
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
To see how the output structure can differ between the two execution
engines, see the following examples:
</p>
<div aria-hidden="true">
</div>
<div class="leafygreen-ui-1b75luy" data-lgid="lg-tabs">
<div class="leafygreen-ui-jp7pox" id="tabs-5">
<div aria-label="Tabs to describe usage of classic-sample-output/sbe-sample-output" aria-orientation="horizontal" class="leafygreen-ui-m8p1vb lg-ui-tab-list-0000" data-lgid="lg-tabs-tab_list" role="tablist">
<button aria-controls="_7tg9xezni" aria-selected="true" class="leafygreen-ui-1l773z1" data-text="" id="_37qrbntc8" name="" role="tab" tabindex="0">
<div class="leafygreen-ui-1nxuzmg">
Classic Execution Engine
</div>
</button>
<button aria-controls="_cpbxz1wg6" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_ke98u9ta5" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Slot-based Execution Engine
</div>
</button>
</div>
<div class="leafygreen-ui-ov1ktg">
<div class="leafygreen-ui-1sg2lsz">
</div>
</div>
</div>
<div class="lg-ui-tab-panels-0000" data-lgid="lg-tabs-tab_panels">
<div>
<div aria-labelledby="_n9ts5l61l" class="" id="_dpvkozknc" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"winningPlan: {\n stage: <stage1>,\n ...\n inputStage: {\n stage: <stage2>,\n ...\n inputStage: {\n stage: <stage3>,\n ...\n }\n }\n},","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">winningPlan</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">stage</span>: <<span class="lg-highlight-title lg-highlight-class">STAGE1</span>><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">inputStage</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">stage</span>: <<span class="lg-highlight-title lg-highlight-class">STAGE2</span>><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">inputStage</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">stage</span>: <<span class="lg-highlight-title lg-highlight-class">STAGE3</span>><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}<!-- -->,</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</div>
</div>
</div>
<div>
<div aria-labelledby="_1a82s4jps" class="leafygreen-ui-38lglc" id="_k7mcoluz3" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"winningPlan: {\n queryPlan: {\n stage: <stage1>,\n ...\n inputStage: {\n stage: <stage2>,\n ...\n inputStage: {\n stage: <stage3>,\n ...\n }\n }\n }\n slotBasedPlan: {\n ...\n }\n},","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">winningPlan</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">queryPlan</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">stage</span>: <<span class="lg-highlight-title lg-highlight-class">STAGE1</span>><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">inputStage</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">stage</span>: <<span class="lg-highlight-title lg-highlight-class">STAGE2</span>><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">inputStage</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">stage</span>: <<span class="lg-highlight-title lg-highlight-class">STAGE3</span>><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">slotBasedPlan</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}<!-- -->,</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Each stage passes its resulting documents or index keys to the
parent node. The leaf nodes access the collection or the indices. The
internal nodes use the documents or the index keys that result from the
child nodes. The root node indicates the stage that MongoDB ultimately
derives the result set from.
</p>
<p class="leafygreen-ui-1kp3ins">
Stages are descriptive of the operation. For example:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
COLLSCAN
</code>
for a collection scan
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
IXSCAN
</code>
for scanning index keys
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
FETCH
</code>
for retrieving documents
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
GROUP
</code>
for grouping documents
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
SHARD_MERGE
</code>
for merging results from shards
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
SHARDING_FILTER
</code>
for filtering out orphan documents from shards
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
TS_MODIFY
</code>
for modifying a time series collection
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
BATCHED_DELETE
</code>
for multiple document deletions that are batched
together internally (starting in MongoDB 6.1)
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
EXPRESS
</code>
stages for a limited set of queries that can bypass
regular query planning to use optimized index scan plans
<em>
(New in
version 8.0.)
</em>
</p>
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
EXPRESS
</code>
stages can be one of the following:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
EXPRESS_CLUSTERED_IXSCAN
</code>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
EXPRESS_DELETE
</code>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
EXPRESS_IXSCAN
</code>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
EXPRESS_UPDATE
</code>
</p>
</li>
</ul>
</li>
</ul>
<span class="leafygreen-ui-1qnjd6d" id="std-label-explain-results-5.1-later">
</span>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Explain Output for MongoDB 5.1 and Later
<a class="headerlink leafygreen-ui-1kepx47" href="#explain-output-for-mongodb-5.1-and-later" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="explain-output-for-mongodb-5.1-and-later">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
This section shows the
<code class="leafygreen-ui-1l06pbn">
explain
</code>
output for MongoDB 5.1 and later. To
see the explain output for older versions of MongoDB, refer to the
documentation for that version.
</p>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.explainVersion
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.explainVersion" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.explainVersion">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Integer field.
</p>
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
explainVersion
</code>
is the output format version for the plan, such as
<code class="leafygreen-ui-1l06pbn">
"1"
</code>
or
<code class="leafygreen-ui-1l06pbn">
"2"
</code>
.
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
5.1
</em>
.
</p>
</div>
</dd>
</dl>
<span class="leafygreen-ui-1qnjd6d" id="std-label-queryPlanner">
</span>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
<code class="leafygreen-ui-1l06pbn">
queryPlanner
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#queryplanner" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="queryplanner">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-explain.queryPlanner" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
explain.queryPlanner
</code>
</span>
</a>
information details the plan selected by
the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/query-plans/#std-label-read-operations-query-optimization">
query optimizer
<!-- -->
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
These examples may combine the output structures of MongoDB's classic
and slot-based execution engines. They are not meant to be
representative. Your output may differ significantly.
</p>
<div aria-hidden="true">
</div>
<div class="leafygreen-ui-1b75luy" data-lgid="lg-tabs">
<div class="leafygreen-ui-jp7pox" id="tabs-9">
<div aria-label="Tabs to describe usage of sharded/unsharded" aria-orientation="horizontal" class="leafygreen-ui-m8p1vb lg-ui-tab-list-0000" data-lgid="lg-tabs-tab_list" role="tablist">
<button aria-controls="_phuukx9ah" aria-selected="true" class="leafygreen-ui-1l773z1" data-text="" id="_mvtenmkzh" name="" role="tab" tabindex="0">
<div class="leafygreen-ui-1nxuzmg">
Unsharded Collections
</div>
</button>
<button aria-controls="_lcaui65f8" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_i7363fqcu" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Sharded Collections
</div>
</button>
</div>
<div class="leafygreen-ui-ov1ktg">
<div class="leafygreen-ui-1sg2lsz">
</div>
</div>
</div>
<div class="lg-ui-tab-panels-0000" data-lgid="lg-tabs-tab_panels">
<div>
<div aria-labelledby="_96tdsqk59" class="" id="_k3wxwhkbl" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
For unsharded collections,
<code class="leafygreen-ui-1l06pbn">
explain
</code>
returns the following
<code class="leafygreen-ui-1l06pbn">
queryPlanner
</code>
information:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"queryPlanner: {\n namespace: <string>,\n indexFilterSet: <boolean>,\n parsedQuery: {\n ...\n },\n planCacheShapeHash: <hexadecimal>,\n planCacheKey: <hexadecimal>,\n maxIndexedOrSolutionsReached: <boolean>,\n maxIndexedAndSolutionsReached: <boolean>,\n maxScansToExplodeReached: <boolean>,\n winningPlan: {\n stage: <stage1>,\n inputStage: {\n stage: <string>,\n ...\n }\n },\n rejectedPlans: [\n <candidate>,\n ]\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">queryPlanner</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">namespace</span>: <<!-- -->string<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">indexFilterSet</span>: <<!-- -->boolean<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">parsedQuery</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">planCacheShapeHash</span>: <!-- --><hexadecimal string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> planCacheKey: <hexadecimal string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> maxIndexedOrSolutionsReached: <boolean>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> maxIndexedAndSolutionsReached: <boolean>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> maxScansToExplodeReached: <boolean>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> winningPlan: {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> stage: <STAGE1>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> inputStage: {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> stage: <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> rejectedPlans: [</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <candidate plan1>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 8.0, the pre-existing
<code class="leafygreen-ui-1l06pbn">
queryHash
</code>
field is renamed
to
<code class="leafygreen-ui-1l06pbn">
planCacheShapeHash
</code>
. If you're using an earlier MongoDB version,
you'll see
<code class="leafygreen-ui-1l06pbn">
queryHash
</code>
instead of
<code class="leafygreen-ui-1l06pbn">
planCacheShapeHash
</code>
.
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_eydvntxhq" class="leafygreen-ui-38lglc" id="_vjgwj9xob" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
For sharded collections,
<code class="leafygreen-ui-1l06pbn">
explain
</code>
includes the core
query planner and server information for each accessed
shard in the
<code class="leafygreen-ui-1l06pbn">
shards
</code>
field:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n queryPlanner: {\n mongosPlannerVersion: <int>\n winningPlan: {\n stage: <stage1>,\n shards: [\n {\n shardName: <string>,\n connectionString: <string>,\n serverInfo: {\n ...\n },\n namespace: <string>,\n indexFilterSet: <boolean>,\n parsedQuery: {\n ...\n },\n querySettings: {\n ...\n },\n planCacheShapeHash: <hexadecimal>,\n planCacheKey: <hexadecimal>,\n maxIndexedOrSolutionsReached: <boolean>,\n maxIndexedAndSolutionsReached: <boolean>,\n maxScansToExplodeReached: <boolean>,\n winningPlan: {\n stage: <stage1>,\n inputStage: {\n stage: <string>,\n ...\n }\n },\n rejectedPlans: [\n <candidate>,\n ]\n }\n ]\n }\n }\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">queryPlanner</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">mongosPlannerVersion</span>: <<!-- -->int<!-- -->></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">winningPlan</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">stage</span>: <<span class="lg-highlight-title lg-highlight-class">STAGE1</span>><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">shards</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">shardName</span>: <<!-- -->string<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">connectionString</span>: <<!-- -->string<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">serverInfo</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">namespace</span>: <<!-- -->string<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">indexFilterSet</span>: <<!-- -->boolean<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">parsedQuery</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">querySettings</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">planCacheShapeHash</span>: <!-- --><hexadecimal string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> planCacheKey: <hexadecimal string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> maxIndexedOrSolutionsReached: <boolean>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> maxIndexedAndSolutionsReached: <boolean>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> maxScansToExplodeReached: <boolean>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> winningPlan: {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> stage: <STAGE1>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> inputStage: {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> stage: <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> rejectedPlans: [</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <candidate plan1>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 8.0, the pre-existing
<code class="leafygreen-ui-1l06pbn">
queryHash
</code>
field is renamed
to
<code class="leafygreen-ui-1l06pbn">
planCacheShapeHash
</code>
. If you're using an earlier MongoDB version,
you'll see
<code class="leafygreen-ui-1l06pbn">
queryHash
</code>
instead of
<code class="leafygreen-ui-1l06pbn">
planCacheShapeHash
</code>
.
</p>
</div>
</div>
</div>
</div>
</div>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.queryPlanner
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.queryPlanner" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.queryPlanner">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Contains information on the selection of the query plan by the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/query-plans/#std-label-read-operations-query-optimization">
query optimizer
<!-- -->
.
</a>
</p>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.queryPlanner.namespace
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.queryPlanner.namespace" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.queryPlanner.namespace">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
A string that specifies the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-namespace">
namespace
</a>
with the names of
the database and the collection accessed by the query. The
namespace has the format
<code class="leafygreen-ui-1l06pbn">
<database>.<collection>
</code>
.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.queryPlanner.indexFilterSet
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.queryPlanner.indexFilterSet" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.queryPlanner.indexFilterSet">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
A boolean that specifies whether MongoDB applied an
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/query-plans/#std-label-index-filters">
index
filter
</a>
for the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-plan-cache-query-shape">
plan cache query shape
<!-- -->
.
</a>
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.queryPlanner.querySettings
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.queryPlanner.querySettings" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.queryPlanner.querySettings">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
If query settings are set,
<code class="leafygreen-ui-1l06pbn">
querySettings
</code>
contains details
about the query settings that are applied to the query shape.
</p>
<p class="leafygreen-ui-1kp3ins">
To add query settings and explore examples, which
include
<code class="leafygreen-ui-1l06pbn">
explain()
</code>
output with
<code class="leafygreen-ui-1l06pbn">
querySettings
</code>
, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/setQuerySettings/#mongodb-dbcommand-dbcmd.setQuerySettings">
<code class="leafygreen-ui-1l06pbn">
setQuerySettings
</code>
.
</a>
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
8.0
</em>
.
</p>
</div>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.queryPlanner.planCacheShapeHash
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.queryPlanner.planCacheShapeHash" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.queryPlanner.planCacheShapeHash">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 8.0, the pre-existing
<code class="leafygreen-ui-1l06pbn">
queryHash
</code>
field is renamed
to
<code class="leafygreen-ui-1l06pbn">
planCacheShapeHash
</code>
. If you're using an earlier MongoDB version,
you'll see
<code class="leafygreen-ui-1l06pbn">
queryHash
</code>
instead of
<code class="leafygreen-ui-1l06pbn">
planCacheShapeHash
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
A hexadecimal string that represents the hash of the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-plan-cache-query-shape">
plan cache query shape
</a>
and is dependent only on the plan cache query shapes.
<code class="leafygreen-ui-1l06pbn">
planCacheShapeHash
</code>
can help identify slow queries (including the
query filter of write operations) with the same plan cache query shape.
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
As with any hash function, two different plan cache query shapes may result
in the same hash value. However, the occurrence of hash
collisions between different plan cache query shapes is unlikely.
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
For more information on
<code class="leafygreen-ui-1l06pbn">
planCacheShapeHash
</code>
and
<code class="leafygreen-ui-1l06pbn">
planCacheKey
</code>
,
see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/query-plans/#std-label-query-hash-plan-cache-key">
planCacheShapeHash and planCacheKey
<!-- -->
.
</a>
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.queryPlanner.planCacheKey
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.queryPlanner.planCacheKey" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.queryPlanner.planCacheKey">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
A hash of the key for the plan cache entry associated with the
query.
</p>
<p class="leafygreen-ui-1kp3ins">
Unlike the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-explain.queryPlanner.planCacheShapeHash" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
explain.queryPlanner.planCacheShapeHash
</code>
</span>
</a>
, the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-explain.queryPlanner.planCacheKey" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
explain.queryPlanner.planCacheKey
</code>
</span>
</a>
is a function of both
the plan cache query shape and the currently available indexes for
that shape. Specifically, if indexes that can support the query
shape are added or dropped, the
<code class="leafygreen-ui-1l06pbn">
planCacheKey
</code>
value may change
but the
<code class="leafygreen-ui-1l06pbn">
planCacheShapeHash
</code>
value wouldn't change.
</p>
<p class="leafygreen-ui-1kp3ins">
For more information on
<code class="leafygreen-ui-1l06pbn">
planCacheShapeHash
</code>
and
<code class="leafygreen-ui-1l06pbn">
planCacheKey
</code>
,
see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/query-plans/#std-label-query-hash-plan-cache-key">
planCacheShapeHash and planCacheKey
<!-- -->
.
</a>
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.queryPlanner.optimizationTimeMillis
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.queryPlanner.optimizationTimeMillis" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.queryPlanner.optimizationTimeMillis">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Time in milliseconds the query planner spent on query
optimization. This result doesn't include time spent
optimizing inner
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/lookup/#mongodb-pipeline-pipe.-lookup">
<code class="leafygreen-ui-1l06pbn">
$lookup
</code>
</a>
queries.
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
8.0
</em>
.
</p>
</div>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.queryPlanner.optimizedPipeline
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.queryPlanner.optimizedPipeline" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.queryPlanner.optimizedPipeline">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
A boolean that indicates that the entire aggregation pipeline
operation was optimized away, and instead, fulfilled by a tree
of query plan execution stages.
</p>
<p class="leafygreen-ui-1kp3ins">
For example, the following aggregation operation can be fulfilled by the
tree of query plan execution rather than using the aggregation pipeline.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.example.aggregate([ { $match: { someFlag: true } } ] )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">example</span>.<span class="lg-highlight-title lg-highlight-function">aggregate</span>(<!-- -->[ <!-- -->{ <span class="lg-highlight-attr">$match</span>: <!-- -->{ <span class="lg-highlight-attr">someFlag</span>: <span class="lg-highlight-literal">true</span> } } ] )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The field is only present if the value is
<code class="leafygreen-ui-1l06pbn">
true
</code>
and only
applies to explain on aggregation pipeline operations. When
<code class="leafygreen-ui-1l06pbn">
true
</code>
, because the pipeline was optimized away, no
aggregation stage information appears in the output.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.queryPlanner.winningPlan
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.queryPlanner.winningPlan" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.queryPlanner.winningPlan">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
A document that details the plan selected by the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/query-plans/">
query
optimizer
<!-- -->
.
</a>
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.queryPlanner.winningPlan.stage
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.queryPlanner.winningPlan.stage" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.queryPlanner.winningPlan.stage">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
A string that denotes the name of the stage.
</p>
<p class="leafygreen-ui-1kp3ins">
Each stage consists of information specific to the stage. For
example, an
<code class="leafygreen-ui-1l06pbn">
IXSCAN
</code>
stage includes the index bounds along with
other data specific to the index scan. If a stage has a child
stage or multiple child stages, the stage will have an
<code class="leafygreen-ui-1l06pbn">
inputStage
</code>
or
<code class="leafygreen-ui-1l06pbn">
inputStages
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
This field appears if the operation used the classic query
execution engine.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.queryPlanner.winningPlan.inputStage
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.queryPlanner.winningPlan.inputStage" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.queryPlanner.winningPlan.inputStage">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
A document that describes the child stage, which provides the
documents or index keys to its parent. The field is present
<em>
if
</em>
the parent stage has only one child.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.queryPlanner.winningPlan.inputStages
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.queryPlanner.winningPlan.inputStages" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.queryPlanner.winningPlan.inputStages">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
An array of documents describing the child stages. Child stages
provide the documents or index keys to the parent stage. The field
is present
<em>
if
</em>
the parent stage has multiple child nodes.
For example, stages for
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-explain-output-or-expression" target="_self">
<span>
$or expressions
</span>
</a>
might consume input from multiple
sources.
</p>
<p class="leafygreen-ui-1kp3ins">
This field appears if the operation used the classic query
execution engine.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.queryPlanner.winningPlan.isCached
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.queryPlanner.winningPlan.isCached" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.queryPlanner.winningPlan.isCached">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
A boolean that indicates if the winningPlan is in the plan cache.
</p>
<p class="leafygreen-ui-1kp3ins">
This field is
<code class="leafygreen-ui-1l06pbn">
true
</code>
for a maximum of one plan between the winning plan
and the rejected plans. If the query has no cached plan, the field is
<code class="leafygreen-ui-1l06pbn">
false
</code>
for the winning plan and the rejected plans.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.queryPlanner.winningPlan.queryPlan
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.queryPlanner.winningPlan.queryPlan" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.queryPlanner.winningPlan.queryPlan">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
A document that details the plan selected by the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/query-plans/">
query
optimizer
</a>
. MongoDB presents the plan as a tree
of stages.
</p>
<p class="leafygreen-ui-1kp3ins">
This document appears if the query used the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/sbe/#std-label-sbe-landing">
slot-based
execution query engine
<!-- -->
.
</a>
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
5.1
</em>
.
</p>
</div>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.queryPlanner.winningPlan.queryPlan.stage
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.queryPlanner.winningPlan.queryPlan.stage" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.queryPlanner.winningPlan.queryPlan.stage">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
A string that denotes the name of the stage.
</p>
<p class="leafygreen-ui-1kp3ins">
Each stage consists of information specific to the stage. For
example, an
<code class="leafygreen-ui-1l06pbn">
IXSCAN
</code>
stage includes the index bounds along
with other data specific to the index scan.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.queryPlanner.winningPlan.queryPlan.planNodeId
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.queryPlanner.winningPlan.queryPlan.planNodeId" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.queryPlanner.winningPlan.queryPlan.planNodeId">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Unique integer field that identifies each stage in the execution
plan. Field is included in all stages throughout the
<code class="leafygreen-ui-1l06pbn">
explain
</code>
results.
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
5.1
</em>
.
</p>
</div>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.queryPlanner.winningPlan.queryPlan.inputStage
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.queryPlanner.winningPlan.queryPlan.inputStage" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.queryPlanner.winningPlan.queryPlan.inputStage">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
See
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-explain.queryPlanner.winningPlan.inputStage" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
explain.queryPlanner.winningPlan.inputStage
</code>
.
</span>
</a>
</p>
</dd>
</dl>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.queryPlanner.winningPlan.slotBasedPlan
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.queryPlanner.winningPlan.slotBasedPlan" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.queryPlanner.winningPlan.slotBasedPlan">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Document with information about the slot-based query execution plan
tree and stages.
<strong>
For internal use by MongoDB.
</strong>
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
5.1
</em>
.
</p>
</div>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.queryPlanner.winningPlan.slotBasedPlan.stages
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.queryPlanner.winningPlan.slotBasedPlan.stages" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.queryPlanner.winningPlan.slotBasedPlan.stages">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
String that includes information on each stage in the slot-based query
execution plan, including execution order, operations, and slot
assignments.
<strong>
For internal use by MongoDB.
</strong>
</p>
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 8.0, if a query uses
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/timeseries/timeseries-querying/#std-label-timeseries-querying-block-processing">
block processing
</a>
,
<code class="leafygreen-ui-1l06pbn">
block_to_row
</code>
and
<code class="leafygreen-ui-1l06pbn">
ts_bucket_to_cellblock
</code>
appear in the
<code class="leafygreen-ui-1l06pbn">
stages
</code>
output.
</p>
<div>
<p>
<em>
Changed
<!-- -->
in version
<!-- -->
8.0
</em>
.
</p>
</div>
</dd>
</dl>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.queryPlanner.rejectedPlans
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.queryPlanner.rejectedPlans" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.queryPlanner.rejectedPlans">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Array of candidate plans considered and rejected by the
query optimizer. The array can be empty if there were no other
candidate plans.
</p>
<p class="leafygreen-ui-1kp3ins">
Rejected plans have the same fields as
<code class="leafygreen-ui-1l06pbn">
explain.queryPlanner.winningPlan
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 8.0, rejected query plans only contain the
<code class="leafygreen-ui-1l06pbn">
find
</code>
portion of the query. In previous versions, rejected plans can contain
aggregation stages like
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/group/#mongodb-pipeline-pipe.-group">
<code class="leafygreen-ui-1l06pbn">
$group
</code>
</a>
. Those aggregation stages
aren't used by the query planner to choose the winning plan, so the
<code class="leafygreen-ui-1l06pbn">
rejectedPlans
</code>
field only contains the portion of the query that was
used to choose the winning plan.
</p>
</dd>
</dl>
<span class="leafygreen-ui-1qnjd6d" id="std-label-executionStats">
</span>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
<code class="leafygreen-ui-1l06pbn">
executionStats
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#executionstats" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="executionstats">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The returned
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-explain.executionStats" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
explain.executionStats
</code>
</span>
</a>
information details the
execution of the winning plan. In order to include
<code class="leafygreen-ui-1l06pbn">
executionStats
</code>
in the results, you must run the explain in either:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.explain/#std-label-explain-method-executionStats">
executionStats
</a>
or
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.explain/#std-label-explain-method-allPlansExecution">
allPlansExecution
</a>
verbosity mode. Use
<code class="leafygreen-ui-1l06pbn">
allPlansExecution
</code>
mode to include partial
execution data captured during
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/query-plans/#std-label-query-plans-query-optimization">
plan selection
<!-- -->
.
</a>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
These examples may combine the output structures of MongoDB's classic
and slot-based execution engines. They are not meant to be
representative. Your output may differ significantly.
</p>
<div aria-hidden="true">
</div>
<div class="leafygreen-ui-1b75luy" data-lgid="lg-tabs">
<div class="leafygreen-ui-jp7pox" id="tabs-31">
<div aria-label="Tabs to describe usage of sharded/unsharded" aria-orientation="horizontal" class="leafygreen-ui-m8p1vb lg-ui-tab-list-0000" data-lgid="lg-tabs-tab_list" role="tablist">
<button aria-controls="_d6kfk7edx" aria-selected="true" class="leafygreen-ui-1l773z1" data-text="" id="_5hy2lnjzr" name="" role="tab" tabindex="0">
<div class="leafygreen-ui-1nxuzmg">
Unsharded Collections
</div>
</button>
<button aria-controls="_iyz4iz3ac" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_9qi4ucqux" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Sharded Collections
</div>
</button>
</div>
<div class="leafygreen-ui-ov1ktg">
<div class="leafygreen-ui-1sg2lsz">
</div>
</div>
</div>
<div class="lg-ui-tab-panels-0000" data-lgid="lg-tabs-tab_panels">
<div>
<div aria-labelledby="_ui2zw8260" class="" id="_7cstc0lnw" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
For unsharded collections,
<code class="leafygreen-ui-1l06pbn">
explain
</code>
returns the following
<code class="leafygreen-ui-1l06pbn">
executionStats
</code>
information:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"executionStats: {\n executionSuccess: <boolean>,\n nReturned: <int>,\n executionTimeMillis: <int>,\n totalKeysExamined: <int>,\n totalDocsExamined: <int>,\n executionStages: {\n stage: <stage1>\n nReturned: <int>,\n executionTimeMillisEstimate: <int>,\n opens: <int>, // Starting in MongoDB 5.1\n closes: <int>, // Starting in MongoDB 5.1\n works: <int>,\n advanced: <int>,\n needTime: <int>,\n needYield: <int>,\n saveState: <int>,\n restoreState: <int>,\n isEOF: <boolean>,\n ...\n inputStage: {\n stage: <stage2>,\n nReturned: <int>,\n ...\n numReads: <int>, // Starting in MongoDB 5.1\n ...\n executionTimeMillisEstimate: <int>,\n ...\n inputStage: {\n ...\n }\n }\n },\n allPlansExecution: [\n {\n nReturned: <int>,\n executionTimeMillisEstimate: <int>,\n totalKeysExamined: <int>,\n totalDocsExamined:<int>,\n executionStages: {\n stage: <stagea>,\n nReturned: <int>,\n executionTimeMillisEstimate: <int>,\n ...\n inputStage: {\n stage: <stageb>,\n ...\n inputStage: {\n ...\n }\n }\n }\n },\n ...\n ]\n operationMetrics: {\n cpuNanos: <int>,\n cursorSeeks: <int>,\n docBytesRead: <int>,\n docBytesWritten: <int>,\n docUnitsRead: <int>,\n docUnitsReturned: <int>,\n docUnitsWritten: <int>,\n idxEntryBytesRead: <int>,\n idxEntryBytesWritten: <int>,\n idxEntryUnitsRead: <int>,\n idxEntryUnitsWritten: <int>,\n totalUnitsWritten: <int>,\n keysSorted: <int>,\n sorterSpills: <int>\n }\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">executionStats</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">executionSuccess</span>: <<!-- -->boolean<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">nReturned</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">executionTimeMillis</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">totalKeysExamined</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">totalDocsExamined</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">executionStages</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">stage</span>: <<span class="lg-highlight-title lg-highlight-class">STAGE1</span>></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">nReturned</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">executionTimeMillisEstimate</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">opens</span>: <<!-- -->int<!-- -->><!-- -->,<!-- --> <span class="lg-highlight-comment">// Starting in MongoDB 5.1</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">closes</span>: <<!-- -->int<!-- -->><!-- -->,<!-- --> <span class="lg-highlight-comment">// Starting in MongoDB 5.1</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">works</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">advanced</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">needTime</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">needYield</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">saveState</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">restoreState</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">isEOF</span>: <<!-- -->boolean<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">inputStage</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">stage</span>: <<span class="lg-highlight-title lg-highlight-class">STAGE2</span>><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">nReturned</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">numReads</span>: <<!-- -->int<!-- -->><!-- -->,<!-- --> <span class="lg-highlight-comment">// Starting in MongoDB 5.1</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">executionTimeMillisEstimate</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">inputStage</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">allPlansExecution</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">nReturned</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">executionTimeMillisEstimate</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">totalKeysExamined</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">totalDocsExamined</span>:<<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">executionStages</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">stage</span>: <<span class="lg-highlight-variable lg-highlight-constant">STAGEA</span>><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">nReturned</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">executionTimeMillisEstimate</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">inputStage</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">stage</span>: <<span class="lg-highlight-variable lg-highlight-constant">STAGEB</span>><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">inputStage</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">operationMetrics</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">cpuNanos</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">cursorSeeks</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">docBytesRead</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">docBytesWritten</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">docUnitsRead</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">docUnitsReturned</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">docUnitsWritten</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">idxEntryBytesRead</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">idxEntryBytesWritten</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">idxEntryUnitsRead</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">idxEntryUnitsWritten</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">totalUnitsWritten</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">keysSorted</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">sorterSpills</span>: <<!-- -->int<!-- -->></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->}</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</div>
</div>
</div>
<div>
<div aria-labelledby="_unk5mezre" class="leafygreen-ui-38lglc" id="_yy3uinqsy" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
For sharded collections,
<code class="leafygreen-ui-1l06pbn">
explain
</code>
includes the execution
statistics for each accessed shard.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"executionStats: {\n nReturned: <int>,\n executionTimeMillis: <int>,\n totalKeysExamined: <int>,\n totalDocsExamined: <int>,\n executionStages: {\n stage: <stage1>\n nReturned: <int>,\n executionTimeMillis: <int>,\n opens: <int>, // Starting in MongoDB 5.1\n closes: <int>, // Starting in MongoDB 5.1\n totalKeysExamined: <int>,\n totalDocsExamined: <int>,\n totalChildMillis: <numberlong>,\n shards: [\n {\n shardName: <string>,\n executionSuccess: <boolean>,\n executionStages: {\n stage: <stage2>,\n nReturned: <int>,\n executionTimeMillisEstimate: <int>,\n ...\n chunkSkips: <int>,\n inputStage: {\n stage: <stage3>,\n ...\n numReads: <int>, // Starting in MongoDB 5.1\n ...\n inputStage: {\n ...\n }\n }\n }\n },\n ...\n ]\n }\n allPlansExecution: [\n {\n shardName: <string>,\n allPlans: [\n {\n nReturned: <int>,\n executionTimeMillisEstimate: <int>,\n totalKeysExamined: <int>,\n totalDocsExamined:<int>,\n executionStages: {\n stage: <stagea>,\n nReturned: <int>,\n executionTimeMillisEstimate: <int>,\n ...\n inputStage: {\n stage: <stageb>,\n ...\n inputStage: {\n ...\n }\n }\n }\n },\n ...\n ]\n },\n {\n shardName: <string>,\n allPlans: [\n ...\n ]\n },\n ...\n ]\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">executionStats</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">nReturned</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">executionTimeMillis</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">totalKeysExamined</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">totalDocsExamined</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">executionStages</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">stage</span>: <<span class="lg-highlight-title lg-highlight-class">STAGE1</span>></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">nReturned</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">executionTimeMillis</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">opens</span>: <<!-- -->int<!-- -->><!-- -->,<!-- --> <span class="lg-highlight-comment">// Starting in MongoDB 5.1</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">closes</span>: <<!-- -->int<!-- -->><!-- -->,<!-- --> <span class="lg-highlight-comment">// Starting in MongoDB 5.1</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">totalKeysExamined</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">totalDocsExamined</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">totalChildMillis</span>: <<span class="lg-highlight-title lg-highlight-class">NumberLong</span>><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">shards</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">shardName</span>: <<!-- -->string<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">executionSuccess</span>: <<!-- -->boolean<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">executionStages</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">stage</span>: <<span class="lg-highlight-title lg-highlight-class">STAGE2</span>><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">nReturned</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">executionTimeMillisEstimate</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">chunkSkips</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">inputStage</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">stage</span>: <<span class="lg-highlight-title lg-highlight-class">STAGE3</span>><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">numReads</span>: <<!-- -->int<!-- -->><!-- -->,<!-- --> <span class="lg-highlight-comment">// Starting in MongoDB 5.1</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">inputStage</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">allPlansExecution</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">shardName</span>: <<!-- -->string<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">allPlans</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">nReturned</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">executionTimeMillisEstimate</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">totalKeysExamined</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">totalDocsExamined</span>:<<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">executionStages</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">stage</span>: <<span class="lg-highlight-variable lg-highlight-constant">STAGEA</span>><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">nReturned</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">executionTimeMillisEstimate</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">inputStage</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">stage</span>: <<span class="lg-highlight-variable lg-highlight-constant">STAGEB</span>><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">inputStage</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">shardName</span>: <<!-- -->string<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">allPlans</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.executionStats
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.executionStats" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.executionStats">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Contains statistics that describe the completed query execution for
the winning plan. For write operations, completed query execution
refers to the modifications that
<em>
would
</em>
be performed, but does
<em>
not
</em>
apply the modifications to the database.
</p>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.executionStats.nReturned
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.executionStats.nReturned" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.executionStats.nReturned">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Number of documents returned by the winning query plan.
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-explain.executionStats.nReturned" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
nReturned
</code>
</span>
</a>
corresponds to the
<code class="leafygreen-ui-1l06pbn">
n
</code>
field
returned by
<code class="leafygreen-ui-1l06pbn">
cursor.explain()
</code>
in earlier versions of MongoDB.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.executionStats.executionTimeMillis
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.executionStats.executionTimeMillis" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.executionStats.executionTimeMillis">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Total time in milliseconds required for query plan selection and
query execution. It includes the time it takes to run the trial phase
part of the plan selection process, but does not include the network time
to transmit the data back to the client.
</p>
<p class="leafygreen-ui-1kp3ins">
The time reported by
<code class="leafygreen-ui-1l06pbn">
explain.executionStats.executionTimeMillis
</code>
is
not necessarily representative of actual query time. During steady
state operations (when the query plan is cached), or when using
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/cursor.hint/#mongodb-method-cursor.hint">
<code class="leafygreen-ui-1l06pbn">
cursor.hint()
</code>
</a>
with
<code class="leafygreen-ui-1l06pbn">
cursor.explain()
</code>
, MongoDB bypasses the
plan selection process, resulting in a faster actual time, leading to
a lower
<code class="leafygreen-ui-1l06pbn">
explain.executionStats.executionTimeMillis
</code>
value.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.executionStats.totalKeysExamined
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.executionStats.totalKeysExamined" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.executionStats.totalKeysExamined">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Number of index entries scanned.
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-explain.executionStats.totalKeysExamined" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
explain.executionStats.totalKeysExamined
</code>
</span>
</a>
corresponds to the
<code class="leafygreen-ui-1l06pbn">
nscanned
</code>
field returned by
<code class="leafygreen-ui-1l06pbn">
cursor.explain()
</code>
in
earlier versions of MongoDB.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.executionStats.totalDocsExamined
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.executionStats.totalDocsExamined" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.executionStats.totalDocsExamined">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Number of documents examined during query execution. Common
query execution stages that examine documents are
<code class="leafygreen-ui-1l06pbn">
COLLSCAN
</code>
and
<code class="leafygreen-ui-1l06pbn">
FETCH
</code>
.
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-explain.executionStats.totalDocsExamined" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
explain.executionStats.totalDocsExamined
</code>
</span>
</a>
refers to
the total number of documents examined and
<em>
not
</em>
to the
number of documents returned. For example, a stage can
examine a document in order to apply a filter. If the
document is filtered out, then it has been examined but
will not be returned as part of the query result set.
</p>
<p class="leafygreen-ui-1kp3ins">
If a document is examined multiple times during query
execution,
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-explain.executionStats.totalDocsExamined" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
explain.executionStats.totalDocsExamined
</code>
</span>
</a>
counts
each examination. That is,
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-explain.executionStats.totalDocsExamined" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
explain.executionStats.totalDocsExamined
</code>
</span>
</a>
is
<em>
not
</em>
a
count of the total number of
<em>
unique
</em>
documents examined.
</p>
</div>
</div>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.executionStats.executionStages
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.executionStats.executionStages" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.executionStats.executionStages">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Details the completed execution of the winning plan as a tree of
stages; i.e. a stage can have an
<code class="leafygreen-ui-1l06pbn">
inputStage
</code>
or multiple
<code class="leafygreen-ui-1l06pbn">
inputStages
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 5.1, a stage can have these input stages:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
thenStage
</code>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
elseStage
</code>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
innerStage
</code>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
outerStage
</code>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
Each stage consists of execution information specific to the
stage.
</p>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.executionStats.executionStages.executionTimeMillisEstimate
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.executionStats.executionStages.executionTimeMillisEstimate" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.executionStats.executionStages.executionTimeMillisEstimate">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The estimated amount of time in milliseconds for query execution.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.executionStats.executionStages.opens
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.executionStats.executionStages.opens" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.executionStats.executionStages.opens">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 5.1, the number of times a stage was
opened during query execution.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.executionStats.executionStages.closes
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.executionStats.executionStages.closes" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.executionStats.executionStages.closes">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 5.1, the number of times a stage was
closed during query execution.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.executionStats.executionStages.works
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.executionStats.executionStages.works" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.executionStats.executionStages.works">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Specifies the number of "work units" performed by the query
execution stage. Query execution divides its work into small
units. A "work unit" might consist of examining a single index
key, fetching a single document from the collection, applying
a projection to a single document, or doing a piece of internal
bookkeeping.
</p>
<p class="leafygreen-ui-1kp3ins">
This field appears if the operation used the classic query
execution engine.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.executionStats.executionStages.saveState
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.executionStats.executionStages.saveState" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.executionStats.executionStages.saveState">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The number of times that the query stage suspended processing
and saved its current execution state, for example in
preparation for yielding its locks.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.executionStats.executionStages.restoreState
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.executionStats.executionStages.restoreState" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.executionStats.executionStages.restoreState">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The number of times that the query stage restored a saved
execution state, for example after recovering locks that it had
previously yielded.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.executionStats.executionStages.isEOF
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.executionStats.executionStages.isEOF" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.executionStats.executionStages.isEOF">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Specifies whether the execution stage has reached end of stream:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
If
<code class="leafygreen-ui-1l06pbn">
true
</code>
or
<code class="leafygreen-ui-1l06pbn">
1
</code>
, the execution stage has reached
end-of-stream.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
If
<code class="leafygreen-ui-1l06pbn">
false
</code>
or
<code class="leafygreen-ui-1l06pbn">
0
</code>
, the stage may still have results to
return. For example, consider a query with a limit whose
execution stages consists of a
<code class="leafygreen-ui-1l06pbn">
LIMIT
</code>
stage with an
input stage of
<code class="leafygreen-ui-1l06pbn">
IXSCAN
</code>
for the query. If the query
returns more than the specified limit, the
<code class="leafygreen-ui-1l06pbn">
LIMIT
</code>
stage
will report
<code class="leafygreen-ui-1l06pbn">
isEOF: 1
</code>
, but its underlying
<code class="leafygreen-ui-1l06pbn">
IXSCAN
</code>
stage
will report
<code class="leafygreen-ui-1l06pbn">
isEOF: 0
</code>
.
</p>
</li>
</ul>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.executionStats.executionStages.opType
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.executionStats.executionStages.opType" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.executionStats.executionStages.opType">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
For operations on time series collections, the type of operation.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.executionStats.executionStages.bucketFilter
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.executionStats.executionStages.bucketFilter" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.executionStats.executionStages.bucketFilter">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
For operations on time series collections, the filter used to reduce
the number of buckets queried in the bucket catalog.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.executionStats.executionStages.residualFilter
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.executionStats.executionStages.residualFilter" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.executionStats.executionStages.residualFilter">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
For operations on time series collections, the filter used to query
the bucket catalog.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.executionStats.executionStages.nBucketsUnpacked
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.executionStats.executionStages.nBucketsUnpacked" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.executionStats.executionStages.nBucketsUnpacked">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
For operations on time series collections, the number of buckets
unpacked to resolve the operation.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.executionStats.executionStages.nMeasurementsDeleted
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.executionStats.executionStages.nMeasurementsDeleted" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.executionStats.executionStages.nMeasurementsDeleted">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
For operations on time series collections, the number of
documents deleted.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.executionStats.executionStages.nMeasurementsInserted
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.executionStats.executionStages.nMeasurementsInserted" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.executionStats.executionStages.nMeasurementsInserted">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
For operations on time series collections, the number of
documents inserted.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.executionStats.executionStages.nMeasurementsMatched
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.executionStats.executionStages.nMeasurementsMatched" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.executionStats.executionStages.nMeasurementsMatched">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
For operations on time series collections, the number of
documents matched.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.executionStats.executionStages.nMeasurementsModified
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.executionStats.executionStages.nMeasurementsModified" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.executionStats.executionStages.nMeasurementsModified">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
For operations on time series collections, the number of
documents modified.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.executionStats.executionStages.nMeasurementsUpserted
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.executionStats.executionStages.nMeasurementsUpserted" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.executionStats.executionStages.nMeasurementsUpserted">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
For operations on time series collections, the number of
documents upserted.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.executionStats.executionStages.inputStage
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.executionStats.executionStages.inputStage" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.executionStats.executionStages.inputStage">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Each
<code class="leafygreen-ui-1l06pbn">
inputStage
</code>
can have different fields depending on the
value of
<code class="leafygreen-ui-1l06pbn">
inputStage.stage
</code>
. The following table describes
possible fields and what stages they can appear in.
</p>
<p class="leafygreen-ui-1kp3ins">
Each
<code class="leafygreen-ui-1l06pbn">
inputStage
</code>
can have another
<code class="leafygreen-ui-1l06pbn">
inputStage
</code>
as a field.
See
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-explain-output-structure" target="_self">
<span>
Explain Output Structure
<!-- -->
.
</span>
</a>
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:30%"/>
<col style="width:40%"/>
<col style="width:30%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Field
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Applicable Stages
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
docsExamined
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Specifies the number of documents scanned during the
query execution stage.
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
COLLSCAN
</code>
,
<code class="leafygreen-ui-1l06pbn">
FETCH
</code>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
keysExamined
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
For query execution stages that scan an index
<code class="leafygreen-ui-1l06pbn">
keysExamined
</code>
is the total number of in-bounds and out-of-bounds
keys that are examined in the process of the index scan. If the
index scan consists of a single contiguous range of keys, only
in-bounds keys need to be examined. If the index bounds consists of
several key ranges, the index scan execution process may examine
out-of-bounds keys in order to skip from the end of one range to the
beginning of the next.
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
IXSCAN
</code>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
numReads
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
The number of documents scanned or index keys examined during
the query execution stage.
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
5.1
</em>
.
</p>
</div>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
COLLSCAN
</code>
,
<code class="leafygreen-ui-1l06pbn">
IXSCAN
</code>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
seeks
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
The number of times that we had to seek the index cursor to
a new position in order to complete the index scan.
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
IXSCAN
</code>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
spilledBytesApprox
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
The approximate number of in-memory bytes spilled to disk in
the stage.
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
5.3
</em>
.
</p>
</div>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
GROUP
</code>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
spilledRecords
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
The number of produced records spilled to disk in the stage.
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
5.3
</em>
.
</p>
</div>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
GROUP
</code>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
usedDisk
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Whether the stage wrote to disk.
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
5.3
</em>
.
</p>
</div>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
GROUP
</code>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</dd>
</dl>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.executionStats.allPlansExecution
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.executionStats.allPlansExecution" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.executionStats.allPlansExecution">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Contains
<em>
partial
</em>
execution information captured during the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/query-plans/#std-label-query-plans-query-optimization">
plan selection phase
</a>
for
both the winning and rejected plans. The field is present only if
<code class="leafygreen-ui-1l06pbn">
explain
</code>
runs in
<code class="leafygreen-ui-1l06pbn">
allPlansExecution
</code>
verbosity mode.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.executionStats.operationMetrics
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.executionStats.operationMetrics" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.executionStats.operationMetrics">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Contains resource consumption statistics, as long as they
are not zero. The field is present only if
<code class="leafygreen-ui-1l06pbn">
explain
</code>
runs in
<code class="leafygreen-ui-1l06pbn">
executionStats
</code>
verbosity mode or higher and if
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/parameters/#mongodb-parameter-param.profileOperationResourceConsumptionMetrics">
<code class="leafygreen-ui-1l06pbn">
profileOperationResourceConsumptionMetrics
</code>
</a>
is enabled.
</p>
</dd>
</dl>
</dd>
</dl>
<span class="leafygreen-ui-1qnjd6d" id="std-label-serverInfo">
</span>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
<code class="leafygreen-ui-1l06pbn">
serverInfo
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#serverinfo" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="serverinfo">
</div>
</a>
</h3>
<div aria-hidden="true">
</div>
<div class="leafygreen-ui-1b75luy" data-lgid="lg-tabs">
<div class="leafygreen-ui-jp7pox" id="tabs-58">
<div aria-label="Tabs to describe usage of sharded/unsharded" aria-orientation="horizontal" class="leafygreen-ui-m8p1vb lg-ui-tab-list-0000" data-lgid="lg-tabs-tab_list" role="tablist">
<button aria-controls="_rrl8vh9m7" aria-selected="true" class="leafygreen-ui-1l773z1" data-text="" id="_wxmfaeq1q" name="" role="tab" tabindex="0">
<div class="leafygreen-ui-1nxuzmg">
Unsharded Collections
</div>
</button>
<button aria-controls="_rv2k0udbi" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_73m025dss" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Sharded Collections
</div>
</button>
</div>
<div class="leafygreen-ui-ov1ktg">
<div class="leafygreen-ui-1sg2lsz">
</div>
</div>
</div>
<div class="lg-ui-tab-panels-0000" data-lgid="lg-tabs-tab_panels">
<div>
<div aria-labelledby="_gx5v5owc2" class="" id="_95d8d5vwa" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
For unsharded collections,
<code class="leafygreen-ui-1l06pbn">
explain
</code>
returns the following
<code class="leafygreen-ui-1l06pbn">
serverInfo
</code>
information for the MongoDB instance:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"serverInfo: {\n host: <string>,\n port: <int>,\n version: <string>,\n gitVersion: <string>\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">serverInfo</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">host</span>: <<!-- -->string<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">port</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">version</span>: <<!-- -->string<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">gitVersion</span>: <<!-- -->string<!-- -->></td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</div>
</div>
</div>
<div>
<div aria-labelledby="_0n4y0kpym" class="leafygreen-ui-38lglc" id="_8kni116e9" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
For sharded collections,
<code class="leafygreen-ui-1l06pbn">
explain
</code>
returns the
<code class="leafygreen-ui-1l06pbn">
serverInfo
</code>
for each accessed shard, and a top-level
<code class="leafygreen-ui-1l06pbn">
serverInfo
</code>
object for the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
.
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"queryPlanner: {\n ...\n winningPlan: {\n stage: <stage1>,\n shards: [\n {\n shardName: <string>,\n connectionString: <string>,\n serverInfo: {\n host: <string>,\n port: <int>,\n version: <string>,\n gitVersion: <string>\n },\n ...\n }\n ...\n ]\n }\n },\n serverInfo: { // serverInfo for mongos\n host: <string>,\n port: <int>,\n version: <string>,\n gitVersion: <string>\n }\n ...","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">queryPlanner</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">winningPlan</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">stage</span>: <<span class="lg-highlight-title lg-highlight-class">STAGE1</span>><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">shards</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">shardName</span>: <<!-- -->string<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">connectionString</span>: <<!-- -->string<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">serverInfo</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">host</span>: <<!-- -->string<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">port</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">version</span>: <<!-- -->string<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">gitVersion</span>: <<!-- -->string<!-- -->></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">serverInfo</span>: <!-- -->{ <span class="lg-highlight-comment">// serverInfo for mongos</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">host</span>: <<!-- -->string<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">port</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">version</span>: <<!-- -->string<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">gitVersion</span>: <<!-- -->string<!-- -->></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->}</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-explain-results-lookup">
</span>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Execution Plan Statistics for Query with
<code class="leafygreen-ui-1l06pbn">
$lookup
</code>
Pipeline Stage
<a class="headerlink leafygreen-ui-1kepx47" href="#execution-plan-statistics-for-query-with--lookup-pipeline-stage" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="execution-plan-statistics-for-query-with--lookup-pipeline-stage">
</div>
</a>
</h2>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
5.0
</em>
.
</p>
</div>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-explain-results" target="_self">
<span>
explain results
</span>
</a>
can include execution
statistics for queries that use a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/lookup/#mongodb-pipeline-pipe.-lookup">
<code class="leafygreen-ui-1l06pbn">
$lookup
</code>
</a>
pipeline stage. To
include those execution statistics, you must run the explain operation
in one of these execution verbosity modes:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.explain/#std-label-explain-method-executionStats">
executionStats
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.explain/#std-label-explain-method-allPlansExecution">
allPlansExecution
</a>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
The following fields are included in the explain results for a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/lookup/#mongodb-pipeline-pipe.-lookup">
<code class="leafygreen-ui-1l06pbn">
$lookup
</code>
</a>
query:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"'$lookup': {\n from: <string>,\n as: <string>,\n localField: <string>,\n foreignField: <string>\n},\ntotalDocsExamined: <long>,\ntotalKeysExamined: <long>,\ncollectionScans: <long>,\nindexesUsed: [ <string_1>, <string_2>, ..., <string_n> ],\nexecutionTimeMillisEstimate: <long>"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light none leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">'$lookup': {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> from: <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> as: <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> localField: <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> foreignField: <string></td></tr><tr class=""><td class="leafygreen-ui-7razhx">},</td></tr><tr class=""><td class="leafygreen-ui-7razhx">totalDocsExamined: <long>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx">totalKeysExamined: <long>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx">collectionScans: <long>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx">indexesUsed: [ <string_1>, <string_2>, ..., <string_n> ],</td></tr><tr class=""><td class="leafygreen-ui-7razhx">executionTimeMillisEstimate: <long></td></tr></tbody></table></code></pre>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To see the descriptions for the fields in the
<code class="leafygreen-ui-1l06pbn">
$lookup
</code>
section, see
the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/lookup/#mongodb-pipeline-pipe.-lookup">
<code class="leafygreen-ui-1l06pbn">
$lookup
</code>
</a>
page.
</p>
<p class="leafygreen-ui-1kp3ins">
The other fields are:
</p>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.totalDocsExamined
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.totalDocsExamined" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.totalDocsExamined">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Number of documents examined during the query execution.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.totalKeysExamined
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.totalKeysExamined" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.totalKeysExamined">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Number of index keys examined.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.collectionScans
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.collectionScans" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.collectionScans">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Number of times a collection scan occurred during query execution.
During a collection scan, each document in a collection is compared
to the query predicate. Collection scans occur if no appropriate
<a class="leafygreen-ui-tqgtui" href="/docs/manual/indexes/#std-label-indexes">
index
</a>
exists that
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/query-optimization/#std-label-indexes-covered-queries">
covers
</a>
the query.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.indexesUsed
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.indexesUsed" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.indexesUsed">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Array of strings with the names of the indexes used by the query.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.executionTimeMillisEstimate
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.executionTimeMillisEstimate" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.executionTimeMillisEstimate">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Estimated time in milliseconds for the query execution.
</p>
</dd>
</dl>
<span class="leafygreen-ui-1qnjd6d" id="std-label-explain-output-collection-scan">
</span>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Collection Scan
<a class="headerlink leafygreen-ui-1kepx47" href="#collection-scan" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="collection-scan">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
If the query planner selects a collection scan, the explain result
includes a
<code class="leafygreen-ui-1l06pbn">
COLLSCAN
</code>
stage.
</p>
<p class="leafygreen-ui-1kp3ins">
If the query planner selects an index, the explain result includes a
<code class="leafygreen-ui-1l06pbn">
IXSCAN
</code>
stage. The stage includes information such as the index
key pattern, direction of traversal, and index bounds.
</p>
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 5.3, if the query planner selects a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.createCollection/#std-label-db.createCollection.clusteredIndex">
clustered
index
</a>
for a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/clustered-collections/#std-label-clustered-collections">
clustered
collection
</a>
and the query contains bounds that
define the portion of the index to search, the explain result includes a
<code class="leafygreen-ui-1l06pbn">
CLUSTERED_IXSCAN
</code>
stage. The stage includes information about the
clustered index key and index bounds.
</p>
<p class="leafygreen-ui-1kp3ins">
If the query planner selects a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.createCollection/#std-label-db.createCollection.clusteredIndex">
clustered index
</a>
for a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/clustered-collections/#std-label-clustered-collections">
clustered collection
</a>
and the query
<em>
does not
</em>
contain bounds, the
query performs an unbounded collection scan and the explain result
includes a
<code class="leafygreen-ui-1l06pbn">
COLLSCAN
</code>
stage.
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/parameters/#mongodb-parameter-param.notablescan">
<code class="leafygreen-ui-1l06pbn">
notablescan
</code>
</a>
parameter does not allow unbounded
queries that use a clustered index because the queries require a
full collection scan.
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
For more information on execution statistics of collection scans, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/analyze-query-plan/">
Interpret Explain Plan Results
<!-- -->
.
</a>
</p>
<span class="leafygreen-ui-1qnjd6d" id="std-label-explain-output-covered-queries">
</span>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Covered Queries
<a class="headerlink leafygreen-ui-1kepx47" href="#covered-queries" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="covered-queries">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
When an index
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/query-optimization/#std-label-indexes-covered-queries">
covers
</a>
a query,
MongoDB can both match the query conditions
<strong>
and
</strong>
return the
results using only the index keys. MongoDB does not need to
examine documents from the collection to perform any part of the
query.
</p>
<p class="leafygreen-ui-1kp3ins">
When an index covers a query, the explain result has an
<code class="leafygreen-ui-1l06pbn">
IXSCAN
</code>
stage that is
<strong>
not
</strong>
a descendant of a
<code class="leafygreen-ui-1l06pbn">
FETCH
</code>
stage, and in the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-executionStats" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
executionStats
</code>
</span>
</a>
, the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-explain.executionStats.totalDocsExamined" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
explain.executionStats.totalDocsExamined
</code>
</span>
</a>
is
<code class="leafygreen-ui-1l06pbn">
0
</code>
.
</p>
<span class="leafygreen-ui-1qnjd6d" id="std-label-explain-output-or-expression">
</span>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
<code class="leafygreen-ui-1l06pbn">
$or
</code>
Expression
<a class="headerlink leafygreen-ui-1kepx47" href="#-or-expression" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="-or-expression">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
If MongoDB uses indexes for an
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/or/#mongodb-query-op.-or">
<code class="leafygreen-ui-1l06pbn">
$or
</code>
</a>
expression, the result will
include the
<code class="leafygreen-ui-1l06pbn">
OR
</code>
stage with an
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-explain.queryPlanner.winningPlan.inputStages" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
explain.queryPlanner.winningPlan.inputStages
</code>
</span>
</a>
array that
details the indexes; e.g.:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n stage: 'OR',\n inputStages: [\n {\n stage: 'IXSCAN',\n ...\n },\n {\n stage : 'IXSCAN',\n ...\n },\n ...\n ]\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">stage</span>: <span class="lg-highlight-string">'OR'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">inputStages</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">stage</span>: <span class="lg-highlight-string">'IXSCAN'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->stage <!-- -->: <span class="lg-highlight-string">'IXSCAN'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
In previous versions of MongoDB,
<code class="leafygreen-ui-1l06pbn">
cursor.explain()
</code>
returned the
<code class="leafygreen-ui-1l06pbn">
clauses
</code>
array that detailed the indexes.
</p>
<span class="leafygreen-ui-1qnjd6d" id="std-label-sort-and-group-executionStats-and-above">
</span>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
<code class="leafygreen-ui-1l06pbn">
$sort
</code>
and
<code class="leafygreen-ui-1l06pbn">
$group
</code>
Stages
<a class="headerlink leafygreen-ui-1kepx47" href="#-sort-and--group-stages" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="-sort-and--group-stages">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
When
<code class="leafygreen-ui-1l06pbn">
explain
</code>
is run in either
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.explain/#std-label-explain-method-executionStats">
executionStats
</a>
or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.explain/#std-label-explain-method-allPlansExecution">
allPlansExecution
</a>
verbosity
mode, the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/sort/#mongodb-pipeline-pipe.-sort">
<code class="leafygreen-ui-1l06pbn">
$sort
</code>
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/group/#mongodb-pipeline-pipe.-group">
<code class="leafygreen-ui-1l06pbn">
$group
</code>
</a>
stages have
additional output.
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:20%"/>
<col style="width:15%"/>
<col style="width:15%"/>
<col style="width:50%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Stage
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Field
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Type
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/sort/#mongodb-pipeline-pipe.-sort">
<code class="leafygreen-ui-1l06pbn">
$sort
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
totalDataSizeSortedBytesEstimate
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
long
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
An estimated number of bytes processed in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/sort/#mongodb-pipeline-pipe.-sort">
<code class="leafygreen-ui-1l06pbn">
$sort
</code>
</a>
stage.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/sort/#mongodb-pipeline-pipe.-sort">
<code class="leafygreen-ui-1l06pbn">
$sort
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
usedDisk
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
boolean
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Whether the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/sort/#mongodb-pipeline-pipe.-sort">
<code class="leafygreen-ui-1l06pbn">
$sort
</code>
</a>
stage wrote to disk.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/group/#mongodb-pipeline-pipe.-group">
<code class="leafygreen-ui-1l06pbn">
$group
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
totalOutputDataSizeBytes
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
long
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
An estimate of the total size of all documents output by the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/group/#mongodb-pipeline-pipe.-group">
<code class="leafygreen-ui-1l06pbn">
$group
</code>
</a>
stage in bytes.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/group/#mongodb-pipeline-pipe.-group">
<code class="leafygreen-ui-1l06pbn">
$group
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
usedDisk
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
boolean
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Whether the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/group/#mongodb-pipeline-pipe.-group">
<code class="leafygreen-ui-1l06pbn">
$group
</code>
</a>
stage wrote to disk.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/group/#mongodb-pipeline-pipe.-group">
<code class="leafygreen-ui-1l06pbn">
$group
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
spillFileSizeBytes
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
long
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
The size of the spill file written to disk in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/group/#mongodb-pipeline-pipe.-group">
<code class="leafygreen-ui-1l06pbn">
$group
</code>
</a>
stage. Due to compression, the value of
<code class="leafygreen-ui-1l06pbn">
spillFileSizeBytes
</code>
should be
less than or equal to
<code class="leafygreen-ui-1l06pbn">
numBytesSpilledEstimate
</code>
.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/group/#mongodb-pipeline-pipe.-group">
<code class="leafygreen-ui-1l06pbn">
$group
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
numBytesSpilledEstimate
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
long
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
An estimate of the number of bytes written to disk in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/group/#mongodb-pipeline-pipe.-group">
<code class="leafygreen-ui-1l06pbn">
$group
</code>
</a>
stage before compression.
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-explain-output-sort">
</span>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Sort Stage
<a class="headerlink leafygreen-ui-1kepx47" href="#sort-stage" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="sort-stage">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
If MongoDB cannot use an index or indexes to obtain the sort order, the
results include a
<code class="leafygreen-ui-1l06pbn">
SORT
</code>
stage indicating a blocking sort operation.
Blocking sorts do not block concurrent operations on the
collection or database. The name refers to the requirement that the
<code class="leafygreen-ui-1l06pbn">
SORT
</code>
stage reads all input documents before returning any output
documents, blocking the flow of data for that specific query.
</p>
<p class="leafygreen-ui-1kp3ins">
If MongoDB requires using more than 100 megabytes of system memory for
the blocking sort operation, MongoDB returns an error
<em>
unless
</em>
the query
specifies
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/cursor.allowDiskUse/#mongodb-method-cursor.allowDiskUse">
<code class="leafygreen-ui-1l06pbn">
cursor.allowDiskUse()
</code>
</a>
.
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/cursor.allowDiskUse/#mongodb-method-cursor.allowDiskUse">
<code class="leafygreen-ui-1l06pbn">
cursor.allowDiskUse()
</code>
</a>
allows MongoDB to use temporary files on disk to store data exceeding the 100
megabyte system memory limit while processing a blocking sort operation. If the
explain plan does not contain an explicit
<code class="leafygreen-ui-1l06pbn">
SORT
</code>
stage, then MongoDB can use
an index to obtain the sort order.
</p>
<span class="leafygreen-ui-1qnjd6d" id="std-label-explain-output-query-shape-hash">
</span>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Query Shape Hash
<a class="headerlink leafygreen-ui-1kepx47" href="#query-shape-hash" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="query-shape-hash">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 8.0,
<code class="leafygreen-ui-1l06pbn">
explain
</code>
outputs the following field:
</p>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
explain.queryShapeHash
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-explain.queryShapeHash" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-explain.queryShapeHash">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
A hexadecimal string that represents the hash of the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-query-shape">
query shape
</a>
. For more information, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/query-shapes/#std-label-query-shapes">
Query Shapes
<!-- -->
.
</a>
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
8.0
</em>
.
</p>
</div>
</dd>
</dl>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/method/Mongo/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Mongo()
<a class="headerlink leafygreen-ui-1kepx47" href="#mongo--" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongo--">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#description" target="_self">
<span>
Description
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#autoencryptionopts" target="_self">
<span>
<code class="css-1kekw28 e1wawog0">
AutoEncryptionOpts
</code>
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#api" target="_self">
<span>
<code class="css-1kekw28 e1wawog0">
api
</code>
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#examples" target="_self">
<span>
Examples
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#connect-to-a-mongodb-cluster" target="_self">
<span>
Connect to a MongoDB Cluster
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#connect-to-a-cluster-with-client-side-encryption-enabled" target="_self">
<span>
Connect to a Cluster with Client-Side Encryption Enabled
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#connect-to-a-cluster-with-automatic-client-side-encryption-enabled" target="_self">
<span>
Connect to a Cluster with Automatic Client-Side Encryption Enabled
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#connect-to-a-cluster-with-the-stable-api-enabled" target="_self">
<span>
Connect to a Cluster with the Stable API Enabled
</span>
</a>
</li>
</ul>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Description
<a class="headerlink leafygreen-ui-1kepx47" href="#description" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="description">
</div>
</a>
</h2>
<dl class="method">
<dt>
<code class="leafygreen-ui-1l06pbn">
Mongo(host, autoEncryptionOpts, api)
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-method-Mongo" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-method-Mongo">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
JavaScript constructor to instantiate a database connection from
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
or from a JavaScript file.
</p>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-Mongo" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
Mongo()
</code>
</span>
</a>
method has the following parameters:
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:20%"/>
<col style="width:20%"/>
<col style="width:80%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Parameter
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Type
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
host
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
string or
<code class="leafygreen-ui-1l06pbn">
Mongo
</code>
instance
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
<em>
Optional
</em>
. Host or connection string.
</p>
<p class="leafygreen-ui-1kp3ins">
The host can either be a connection string or in the form of
<code class="leafygreen-ui-1l06pbn">
<host>
</code>
or
<code class="leafygreen-ui-1l06pbn">
<host><:port>
</code>
. The connection string can be in the form of
a
<code class="leafygreen-ui-1l06pbn">
Mongo
</code>
instance. If you specify a
<code class="leafygreen-ui-1l06pbn">
Mongo
</code>
instance, the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-Mongo" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
Mongo()
</code>
</span>
</a>
constructor uses the connection string of
the specified Mongo instance.
</p>
<p class="leafygreen-ui-1kp3ins">
If omitted,
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-Mongo" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
Mongo()
</code>
</span>
</a>
instantiates a connection to the
localhost interface on the default port
<code class="leafygreen-ui-1l06pbn">
27017
</code>
.
</p>
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
autoEncryptionOpts
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
document
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
<em>
Optional
</em>
. Configuration parameters for enabling
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/csfle/#std-label-manual-csfle-feature">
Client-Side Field Level Encryption
<!-- -->
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
autoEncryptionOpts
</code>
overrides the
existing client-side field level encryption configuration of
the database connection. If omitted,
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-Mongo" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
Mongo()
</code>
</span>
</a>
inherits the client-side field level encryption configuration
of the current database connection.
</p>
<p class="leafygreen-ui-1kp3ins">
See
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-autoEncryptionOpts" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
AutoEncryptionOpts
</code>
</span>
</a>
for usage and syntax
details.
</p>
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
api
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
document
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
<em>
Optional
</em>
. Configuration options for enabling the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/stable-api/#std-label-stable-api">
Stable API
<!-- -->
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
See
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-mongo-api-options" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
api
</code>
</span>
</a>
for usage and syntax details.
</p>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</dd>
</dl>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/Mongo.getDB/#mongodb-method-Mongo.getDB">
<code class="leafygreen-ui-1l06pbn">
Mongo.getDB()
</code>
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.getMongo/#mongodb-method-db.getMongo">
<code class="leafygreen-ui-1l06pbn">
db.getMongo()
</code>
</a>
</p>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-autoEncryptionOpts">
</span>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
<code class="leafygreen-ui-1l06pbn">
AutoEncryptionOpts
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#autoencryptionopts" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="autoencryptionopts">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
autoEncryptionOpts
</code>
document specifies
configuration options for
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/csfle/#std-label-manual-csfle-feature">
Client-Side Field Level Encryption
</a>
.
If the database connection has an existing client-side field level
encryption configuration, specifying
<code class="leafygreen-ui-1l06pbn">
autoEncryptionOpts
</code>
overrides that configuration.
</p>
<p class="leafygreen-ui-1kp3ins">
For example, starting
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
with client-side field level encryption command-line options enables
client-side encryption for that connection. New database connections
created using
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-Mongo" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
Mongo()
</code>
</span>
</a>
inherit the encryption settings
<em>
unless
</em>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-Mongo" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
Mongo()
</code>
</span>
</a>
includes
<code class="leafygreen-ui-1l06pbn">
autoEncryptionOpts
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
autoEncryptionOpts
</code>
document has the following
syntax:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n \"keyVaultClient\" : <object>,\n \"keyVaultNamespace\" : \"<string>\",\n \"kmsProviders\" : <object>,\n \"schemaMap\" : <object>,\n \"bypassAutoEncryption\" : <boolean>,\n \"tlsOptions\": <object>\n}"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light none leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "keyVaultClient" : <object>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "keyVaultNamespace" : "<string>",</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "kmsProviders" : <object>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "schemaMap" : <object>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "bypassAutoEncryption" : <boolean>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "tlsOptions": <object></td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
autoEncryptionOpts
</code>
document takes the
following parameters:
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:20%"/>
<col style="width:10%"/>
<col style="width:80%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Parameter
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Type
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
keyVaultClient
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-Mongo" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
Mongo()
</code>
</span>
</a>
connection object.
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
<em>
(Optional)
</em>
The MongoDB cluster hosting the key vault
collection.
</p>
<p class="leafygreen-ui-1kp3ins">
Specify a
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-Mongo" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
Mongo()
</code>
</span>
</a>
connection object pointing to the
cluster:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"var keyVaultClient = Mongo(<mongodb>);\n\nvar autoEncryptionOptions = {\n \"keyVaultClient\" : keyVaultClient,\n \"keyVaultNamespace\" : \"<database>.<collection>\",\n \"kmsProviders\" : { ... }\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> keyVaultClient <!-- -->= <span class="lg-highlight-title lg-highlight-class">Mongo</span>(<!-- --><MongoDB URI>);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">var autoEncryptionOptions = {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "keyVaultClient" : keyVaultClient,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "keyVaultNamespace" : "<database>.<collection>",</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "kmsProviders" : { ... }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
If
<code class="leafygreen-ui-1l06pbn">
keyVaultClient
</code>
is omitted, the
<code class="leafygreen-ui-1l06pbn">
host
</code>
specified to the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-Mongo" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
Mongo()
</code>
</span>
</a>
object containing the
<code class="leafygreen-ui-1l06pbn">
autoEncryptionOpts
</code>
document is used as the
key vault host.
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
keyVaultNamespace
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
string
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<em>
(Required)
</em>
The full
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-namespace">
namespace
</a>
of the key vault
collection.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
kmsProviders
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
document
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
<em>
(Required)
</em>
The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/queryable-encryption/fundamentals/kms-providers/#std-label-qe-fundamentals-kms-providers">
Key Management Service (KMS)
</a>
used by client-side field level
encryption for managing a Customer Master Key (CMK). Client-side
field level encryption uses the CMK for encrypting and decrypting
data encryption keys.
</p>
<p class="leafygreen-ui-1kp3ins">
Client-Side Field Level Encryption supports the following KMS
providers:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/queryable-encryption/fundamentals/kms-providers/#std-label-qe-fundamentals-kms-providers-aws">
Amazon Web Services KMS
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/queryable-encryption/fundamentals/kms-providers/#std-label-qe-fundamentals-kms-providers-azure">
Azure Key Vault
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/queryable-encryption/fundamentals/kms-providers/#std-label-qe-fundamentals-kms-providers-gcp">
Google Cloud Platform KMS
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/queryable-encryption/fundamentals/kms-providers/#std-label-qe-fundamentals-kms-providers-local">
Locally Managed Key
</a>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
If possible, consider defining the credentials provided in
<code class="leafygreen-ui-1l06pbn">
kmsProviders
</code>
as environment variables, and then passing them
to
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
using the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/options/#std-option-mongosh.--eval" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
--eval
</code>
</span>
</a>
option. This minimizes the chances of credentials
leaking into logs. See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/queryable-encryption/quick-start/#std-label-qe-field-level-encryption-data-key-create">
Create a Data Key
</a>
for examples of
this approach for each supported KMS.
</p>
<dl>
<dt>
Amazon Web Services KMS
</dt>
<dd class="css-1ufxuu7">
<p class="leafygreen-ui-1kp3ins">
<strong class="css-rws738">
IMPORTANT:
</strong>
For AWS KMS support, use
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
,
or the MongoDB 4.2.2 or later legacy
<code class="leafygreen-ui-1l06pbn">
mongo
</code>
shell. The 4.2.0 and
4.2.1 legacy
<code class="leafygreen-ui-1l06pbn">
mongo
</code>
shell do not support the AWS KMS service due
to an unexpected change in the KMS response object. See
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://jira.mongodb.org/browse/SERVER-44721" rel="noopener noreferrer">
<span>
SERVER-44721
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
for more information.
</p>
<p class="leafygreen-ui-1kp3ins">
Specify the
<code class="leafygreen-ui-1l06pbn">
aws
</code>
document to
<code class="leafygreen-ui-1l06pbn">
kmsProviders
</code>
with the
following fields:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"\"kmsProviders\" : {\n \"aws\" : {\n \"accessKeyId\" : \"AWSAccessKeyId\",\n \"secretAccessKey\" : \"AWSSecretAccessKey\"\n }\n }","programmingLanguage":"JSON"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light json leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">"kmsProviders"</span> <span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-punctuation">{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"aws"</span> <span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-punctuation">{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"accessKeyId"</span> <span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"AWSAccessKeyId"</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"secretAccessKey"</span> <span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"AWSSecretAccessKey"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-punctuation">}</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-punctuation">}</span></td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The specified
<code class="leafygreen-ui-1l06pbn">
accessKeyId
</code>
must correspond to an IAM user
with all
<code class="leafygreen-ui-1l06pbn">
List
</code>
and
<code class="leafygreen-ui-1l06pbn">
Read
</code>
permissions for the KMS service.
</p>
<p class="leafygreen-ui-1kp3ins">
In some environments, the AWS SDK can pick up credentials
automatically. To enable AWS KMS usage without providing
explicit credentials to the AWS SDK, you can pass the
<code class="leafygreen-ui-1l06pbn">
kmsProvider
</code>
details to the
<code class="leafygreen-ui-1l06pbn">
Mongo()
</code>
constructor.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n \"kmsProviders\" : { \"aws\" : { } }\n}","programmingLanguage":"JSON"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light json leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-punctuation">{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"kmsProviders"</span> <span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-punctuation">{</span> <span class="lg-highlight-attr">"aws"</span> <span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-punctuation">{</span> <span class="lg-highlight-punctuation">}</span> <span class="lg-highlight-punctuation">}</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-punctuation">}</span></td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</dd>
<dt>
Azure Key Vault
</dt>
<dd class="css-1ufxuu7">
<p class="leafygreen-ui-1kp3ins">
Specify the
<code class="leafygreen-ui-1l06pbn">
azure
</code>
document to
<code class="leafygreen-ui-1l06pbn">
kmsProviders
</code>
with the
following fields:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"\"kmsProviders\" : {\n \"azure\" : {\n \"tenantId\" : \"AzureTenantId\",\n \"clientId\" : \"AzureClientId\",\n \"clientSecret\" : \"AzureClientSecret\"\n }\n}","programmingLanguage":"JSON"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light json leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">"kmsProviders"</span> <span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-punctuation">{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"azure"</span> <span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-punctuation">{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"tenantId"</span> <span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"AzureTenantId"</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"clientId"</span> <span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"AzureClientId"</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"clientSecret"</span> <span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"AzureClientSecret"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-punctuation">}</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-punctuation">}</span></td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
5.0
</em>
.
</p>
</div>
</dd>
<dt>
Google Cloud KMS
</dt>
<dd class="css-1ufxuu7">
<p class="leafygreen-ui-1kp3ins">
Specify the
<code class="leafygreen-ui-1l06pbn">
gcp
</code>
document to
<code class="leafygreen-ui-1l06pbn">
kmsProviders
</code>
with the
following fields:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"\"kmsProviders\" : {\n \"gcp\" : {\n \"email\" : \"GCPEmail\",\n \"privateKey\" : \"GCPPrivateKey\"\n }\n}","programmingLanguage":"JSON"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light json leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">"kmsProviders"</span> <span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-punctuation">{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"gcp"</span> <span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-punctuation">{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"email"</span> <span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"GCPEmail"</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"privateKey"</span> <span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"GCPPrivateKey"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-punctuation">}</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-punctuation">}</span></td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
5.0
</em>
.
</p>
</div>
</dd>
<dt>
Locally Managed Key
</dt>
<dd class="css-1ufxuu7">
<p class="leafygreen-ui-1kp3ins">
Specify the
<code class="leafygreen-ui-1l06pbn">
local
</code>
document to
<code class="leafygreen-ui-1l06pbn">
kmsProviders
</code>
with the
following field:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"\"kmsProviders\" : {\n \"local\" : {\n \"key\" : BinData(0, \"<96 byte base-64 encoded key>\")\n }\n}","programmingLanguage":"JSON"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light json leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">"kmsProviders"</span> <span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-punctuation">{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"local"</span> <span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-punctuation">{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"key"</span> <span class="lg-highlight-punctuation">:</span> BinData(<span class="lg-highlight-number">0</span><span class="lg-highlight-punctuation">,</span> <span class="lg-highlight-string">"<96 byte base-64 encoded key>"</span>)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-punctuation">}</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-punctuation">}</span></td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The specified
<code class="leafygreen-ui-1l06pbn">
key
</code>
<em>
must
</em>
be a base64-encoded
96-byte string with no newline characters.
</p>
</dd>
</dl>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
schemaMap
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
document
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
<em>
(Optional)
</em>
The automatic client-side field level encryption
rules specified using the JSON schema Draft 4 standard syntax and
encryption-specific keywords. This option is mutually exclusive
with
<code class="leafygreen-ui-1l06pbn">
explicitEncryptionOnly
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
For complete documentation, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/csfle/fundamentals/create-schema/#std-label-csfle-fundamentals-create-schema">
Encryption Schemas
<!-- -->
.
</a>
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
bypassAutoEncryption
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
boolean
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<em>
(Optional)
</em>
Specify
<code class="leafygreen-ui-1l06pbn">
true
</code>
to bypass automatic client-side field
level encryption rules and perform explicit (manual) per-field
encryption.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
bypassQueryAnalysis
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
boolean
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<em>
(Optional)
</em>
Specify
<code class="leafygreen-ui-1l06pbn">
true
</code>
to use explicit encryption on
indexed fields without the
<code class="leafygreen-ui-1l06pbn">
crypt_shared
</code>
library. For details,
see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/queryable-encryption/reference/qe-options-clients/#std-label-qe-reference-mongo-client">
MongoClient Options for Queryable Encryption
<!-- -->
.
</a>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
explicitEncryptionOnly
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
boolean
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<em>
(Optional)
</em>
Specify
<code class="leafygreen-ui-1l06pbn">
true
</code>
to use neither automatic encryption
nor automatic decryption. You can use
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/getKeyVault/#mongodb-method-getKeyVault">
<code class="leafygreen-ui-1l06pbn">
getKeyVault()
</code>
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/getClientEncryption/#mongodb-method-getClientEncryption">
<code class="leafygreen-ui-1l06pbn">
getClientEncryption()
</code>
</a>
to perform explicit
encryption. This option is mutually exclusive with
<code class="leafygreen-ui-1l06pbn">
schemaMap
</code>
.
If omitted, defaults to
<code class="leafygreen-ui-1l06pbn">
false
</code>
.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
tlsOptions
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
object
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<em>
(Optional)
</em>
The path to the TLS client certificate and private key file in PEM format
(
<code class="leafygreen-ui-1l06pbn">
tlsCertificateKeyFile
</code>
), TLS client certificate and private key file password
(
<code class="leafygreen-ui-1l06pbn">
tlsCertificateKeyFilePassword
</code>
), or TLS certificate authority file
(
<code class="leafygreen-ui-1l06pbn">
tlsCAFile
</code>
) to use to connect to the KMS in PEM format. To learn more
about these options, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/options/#tls-options" target="_self">
<span>
TLS Options
</span>
</a>
.
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-mongo-api-options">
</span>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
<code class="leafygreen-ui-1l06pbn">
api
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#api" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="api">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
api
</code>
parameter specifies configuration options for the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/stable-api/#std-label-stable-api">
Stable API
</a>
. You can enable or disable optional
behavior using the following options:
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:20%"/>
<col style="width:10%"/>
<col style="width:70%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Option
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Type
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
version
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
string
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Specifies the API Version.
<code class="leafygreen-ui-1l06pbn">
"1"
</code>
is
currently the only supported version.
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
strict
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
boolean
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<dl>
<dt>
If
<code class="leafygreen-ui-1l06pbn">
true
</code>
:
</dt>
<dd class="css-1ufxuu7">
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Using a command that is not part of the declared API
version returns an
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/stable-api/#std-label-api-strict-resp">
APIStrictError
</a>
error.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Indexes that are
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/createIndexes/#std-label-create-indexes-stable-api">
unsupported
</a>
by the Stable API are ignored by the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/query-plans/#std-label-query-plans-query-optimization">
query planner
<!-- -->
.
</a>
</p>
</li>
</ul>
</dd>
</dl>
<p class="leafygreen-ui-1kp3ins">
If you specify
<code class="leafygreen-ui-1l06pbn">
strict
</code>
, you must also specify
<code class="leafygreen-ui-1l06pbn">
version
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
If not specified, defaults to
<code class="leafygreen-ui-1l06pbn">
false
</code>
.
</p>
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
deprecationErrors
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
boolean
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
If
<code class="leafygreen-ui-1l06pbn">
true
</code>
, using a command or behavior that is deprecated
in the specified API version returns an
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/stable-api/#std-label-api-deprecation-resp">
APIDeprecationError
</a>
. If you specify
<code class="leafygreen-ui-1l06pbn">
deprecationErrors
</code>
, you must also specify
<code class="leafygreen-ui-1l06pbn">
version
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
If not specified, defaults to
<code class="leafygreen-ui-1l06pbn">
false
</code>
.
</p>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
api
</code>
parameter has the following syntax:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ api: { version: <string>, strict: <boolean>, deprecationErrors: <boolean> } }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-attr">api</span>: <!-- -->{ <span class="lg-highlight-attr">version</span>: <<!-- -->string<!-- -->><!-- -->,<!-- --> <span class="lg-highlight-attr">strict</span>: <<!-- -->boolean<!-- -->><!-- -->,<!-- --> <span class="lg-highlight-attr">deprecationErrors</span>: <<!-- -->boolean<!-- -->> <!-- -->} }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
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</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Examples
<a class="headerlink leafygreen-ui-1kepx47" href="#examples" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="examples">
</div>
</a>
</h2>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Connect to a MongoDB Cluster
<a class="headerlink leafygreen-ui-1kepx47" href="#connect-to-a-mongodb-cluster" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="connect-to-a-mongodb-cluster">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The following operation creates a new connection object from within a
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
session:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"cluster = Mongo(\"mongodb://mymongo.example.net:27017/?replicaSet=myMongoCluster\")","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">cluster <!-- -->= <span class="lg-highlight-title lg-highlight-class">Mongo</span>(<span class="lg-highlight-string">"mongodb://mymongo.example.net:27017/?replicaSet=myMongoCluster"</span>)</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Issue operations against the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
object to interact with the
<code class="leafygreen-ui-1l06pbn">
mymongo.example.net:27017
</code>
cluster:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"myDB = cluster.getDB(\"myDB\"); //returns the database object\nmyColl = myDB.getCollection(\"myColl\"); // returns the collection object","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
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<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">myDB <!-- -->= <!-- -->cluster.<span class="lg-highlight-title lg-highlight-function">getDB</span>(<span class="lg-highlight-string">"myDB"</span>)<!-- -->; <span class="lg-highlight-comment">//returns the database object</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">myColl <!-- -->= <!-- -->myDB.<span class="lg-highlight-title lg-highlight-function">getCollection</span>(<span class="lg-highlight-string">"myColl"</span>)<!-- -->; <span class="lg-highlight-comment">//</span><span class="lg-highlight-comment"> returns the collection </span><span class="lg-highlight-comment">object</span></td></tr></tbody></table></code></pre>
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Connect to a Cluster with Client-Side Encryption Enabled
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<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"HowTo","steps":[{"@type":"HowToStep","text":"Start the mongosh client.","name":"Start mongosh"},{"@type":"HowToStep","text":"To configure client-side field level encryption for a locally\nmanaged key, generate a base64-encoded 96-byte string with no line\nbreaks.","name":"Generate Your Key"},{"@type":"HowToStep","text":"Create the client-side field level encryption options using the\ngenerated local key string:","name":"Create the Client-Side Field Level Encryption Options"},{"@type":"HowToStep","text":"Use the Mongo() constructor with the client-side field level\nencryption options configured to create a database connection. Replace\nthe mongodb://myMongo.example.net URI with the connection\nstring URI of the target cluster.","name":"Create Your Encrypted Client"}],"name":"Connect to a Cluster with Client-Side Encryption Enabled","image":"https://webimages.mongodb.com/_com_assets/cms/kuyj2focmkbxv7gh3-stacked_default_slate_blue.svg?auto=format%252Ccompress"}
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1
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Start mongosh
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Start the
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
client.
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">mongosh --nodb</td></tr></tbody></table></code></pre>
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<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Generate Your Key
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</h4>
<p class="leafygreen-ui-1kp3ins">
To configure client-side field level encryption for a locally
managed key, generate a base64-encoded 96-byte string with no line
breaks.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"const TEST_LOCAL_KEY = require(\"crypto\").randomBytes(96).toString(\"base64\")","programmingLanguage":"JavaScript"}
</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">const</span> <span class="lg-highlight-variable lg-highlight-constant">TEST_LOCAL_KEY</span> <!-- -->= <span class="lg-highlight-built_in">require</span>(<span class="lg-highlight-string">"crypto"</span>).<span class="lg-highlight-title lg-highlight-function">randomBytes</span>(<span class="lg-highlight-number">96</span>).<span class="lg-highlight-title lg-highlight-function">toString</span>(<span class="lg-highlight-string">"base64"</span>)</td></tr></tbody></table></code></pre>
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<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Create the Client-Side Field Level Encryption Options
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<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
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</h4>
<p class="leafygreen-ui-1kp3ins">
Create the client-side field level encryption options using the
generated local key string:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":" var autoEncryptionOpts = {\n \"keyVaultNamespace\" : \"encryption.__dataKeys\",\n \"kmsProviders\" : {\n \"local\" : {\n \"key\" : BinData(0, TEST_LOCAL_KEY)\n }\n }\n }","programmingLanguage":"JavaScript"}
</script>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">var</span> autoEncryptionOpts <!-- -->= <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"keyVaultNamespace"</span> <!-- -->: <span class="lg-highlight-string">"encryption.__dataKeys"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"kmsProviders"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"local"</span> <!-- -->: <!-- -->{</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"key"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">BinData</span>(<span class="lg-highlight-number">0</span>, <span class="lg-highlight-variable lg-highlight-constant">TEST_LOCAL_KEY</span>)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr></tbody></table></code></pre>
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<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Create Your Encrypted Client
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</h4>
<p class="leafygreen-ui-1kp3ins">
Use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-Mongo" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
Mongo()
</code>
</span>
</a>
constructor with the client-side field level
encryption options configured to create a database connection. Replace
the
<code class="leafygreen-ui-1l06pbn">
mongodb://myMongo.example.net
</code>
URI with the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/connection-string/#std-label-mongodb-uri">
connection
string URI
</a>
of the target cluster.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"encryptedClient = Mongo(\n \"mongodb://myMongo.example.net:27017/?replSetName=myMongo\",\n autoEncryptionOpts\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">encryptedClient <!-- -->= <span class="lg-highlight-title lg-highlight-class">Mongo</span>(</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"mongodb://myMongo.example.net:27017/?replSetName=myMongo"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->autoEncryptionOpts</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
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</button>
</div>
</div>
</div>
</div>
</section>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Issue operations against the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
object to interact with the
<code class="leafygreen-ui-1l06pbn">
mymongo.example.net:27017
</code>
cluster and perform explicit encryption:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"// returns the database object\nmyDB = cluster.getDB(\"myDB\");\n\n// returns the collection object\nmyColl = myDB.getCollection(\"myColl\");\n\n// returns object for managing data encryption keys\nkeyVault = cluster.getKeyVault();\n\n// returns object for explicit encryption/decryption\nclientEncryption = cluster.getClientEncryption();","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-comment">//</span><span class="lg-highlight-comment"> returns the database </span><span class="lg-highlight-comment">object</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">myDB <!-- -->= <!-- -->cluster.<span class="lg-highlight-title lg-highlight-function">getDB</span>(<span class="lg-highlight-string">"myDB"</span>)<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-comment">//</span><span class="lg-highlight-comment"> returns the collection </span><span class="lg-highlight-comment">object</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">myColl <!-- -->= <!-- -->myDB.<span class="lg-highlight-title lg-highlight-function">getCollection</span>(<span class="lg-highlight-string">"myColl"</span>)<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-comment">//</span><span class="lg-highlight-comment"> returns object for </span><span class="lg-highlight-comment">managing data encryption keys</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">keyVault <!-- -->= <!-- -->cluster.<span class="lg-highlight-title lg-highlight-function">getKeyVault</span>(<!-- -->)<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-comment">//</span><span class="lg-highlight-comment"> returns object for </span><span class="lg-highlight-comment">explicit encryption/decryption</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">clientEncryption <!-- -->= <!-- -->cluster.<span class="lg-highlight-title lg-highlight-function">getClientEncryption</span>(<!-- -->)<!-- -->;</td></tr></tbody></table></code></pre>
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<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
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</path>
</svg>
</div>
</button>
</div>
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</div>
<p class="leafygreen-ui-1kp3ins">
See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/js-client-side-field-level-encryption/">
Client-Side Field Level Encryption Methods
</a>
for
a complete list of client-side field level encryption methods.
</p>
<span class="leafygreen-ui-1qnjd6d" id="std-label-mongo-connection-automatic-client-side-encryption-enabled">
</span>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Connect to a Cluster with Automatic Client-Side Encryption Enabled
<a class="headerlink leafygreen-ui-1kepx47" href="#connect-to-a-cluster-with-automatic-client-side-encryption-enabled" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="connect-to-a-cluster-with-automatic-client-side-encryption-enabled">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
To configure client-side field level encryption for a locally managed
key:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
generate a base64-encoded 96-byte string with no line breaks
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
use
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
to load the key
</p>
</li>
</ul>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"export TEST_LOCAL_KEY=$(echo \"$(head -c 96 /dev/urandom | base64 | tr -d '\\n')\")\n\nmongosh --nodb","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"><span class="lg-highlight-built_in">export</span> TEST_LOCAL_KEY=$(<span class="lg-highlight-built_in">echo</span> <span class="lg-highlight-string">"</span><span class="lg-highlight-subst lg-highlight-string">$(head -c 96 /dev/urandom | base64 | tr -d '</span><span class="lg-highlight-subst lg-highlight-string">\n</span><span class="lg-highlight-subst lg-highlight-string">')</span><span class="lg-highlight-string">"</span>)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">mongosh --nodb</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</div>
<p class="leafygreen-ui-1kp3ins">
The following operation creates a new connection object from within a
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
session. The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-autoEncryptionOpts" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
AutoEncryptionOpts
</code>
</span>
</a>
option specifies
the required options for enabling
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/csfle/fundamentals/automatic-encryption/#std-label-field-level-encryption-automatic">
automatic client-side encryption
</a>
on the
<code class="leafygreen-ui-1l06pbn">
hr.employees
</code>
collection:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"var autoEncryptionOpts = {\n \"keyVaultNamespace\" : \"encryption.__dataKeys\",\n \"kmsProviders\" : {\n \"local\" : {\n \"key\" : BinData(0, process.env[\"TEST_LOCAL_KEY\"])\n }\n },\n schemaMap : {\n \"hr.employees\" : {\n \"bsonType\": \"object\",\n \"properties\" : {\n \"taxid\" : {\n \"encrypt\" : {\n \"keyId\" : [UUID(\"bffb361b-30d3-42c0-b7a4-d24a272b72e3\")],\n \"bsonType\" : \"string\",\n \"algorithm\" : \"AEAD_AES_256_CBC_HMAC_SHA_512-Random\"\n }\n },\n \"taxid-short\": {\n \"encrypt\": {\n \"keyId\": [UUID(\"33408ee9-e499-43f9-89fe-5f8533870617\")],\n \"algorithm\": \"AEAD_AES_256_CBC_HMAC_SHA_512-Deterministic\",\n \"bsonType\": \"string\"\n }\n }\n }\n }\n }\n}\n\ncluster = Mongo(\n \"mongodb://mymongo.example.net:27017/?replicaSet=myMongoCluster\",\n autoEncryptionOpts\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> autoEncryptionOpts <!-- -->= <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"keyVaultNamespace"</span> <!-- -->: <span class="lg-highlight-string">"encryption.__dataKeys"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"kmsProviders"</span> <!-- -->: <!-- -->{</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"local"</span> <!-- -->: <!-- -->{</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"key"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">BinData</span>(<span class="lg-highlight-number">0</span>, <!-- -->process.<span class="lg-highlight-property">env</span>[<span class="lg-highlight-string">"TEST_LOCAL_KEY"</span>])</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <!-- -->schemaMap <!-- -->: <!-- -->{</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"hr.employees"</span> <!-- -->: <!-- -->{</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"bsonType"</span>: <span class="lg-highlight-string">"object"</span>,</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"properties"</span> <!-- -->: <!-- -->{</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"taxid"</span> <!-- -->: <!-- -->{</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"encrypt"</span> <!-- -->: <!-- -->{</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"keyId"</span> <!-- -->: <!-- -->[<span class="lg-highlight-title lg-highlight-function">UUID</span>(<span class="lg-highlight-string">"bffb361b-30d3-42c0-b7a4-d24a272b72e3"</span>)]<!-- -->,</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"bsonType"</span> <!-- -->: <span class="lg-highlight-string">"string"</span>,</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"algorithm"</span> <!-- -->: <span class="lg-highlight-string">"AEAD_AES_256_CBC_HMAC_SHA_512-Random"</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> }</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"taxid-short"</span>: <!-- -->{</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"encrypt"</span>: <!-- -->{</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"keyId"</span>: <!-- -->[<span class="lg-highlight-title lg-highlight-function">UUID</span>(<span class="lg-highlight-string">"33408ee9-e499-43f9-89fe-5f8533870617"</span>)]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"algorithm"</span>: <span class="lg-highlight-string">"AEAD_AES_256_CBC_HMAC_SHA_512-Deterministic"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"bsonType"</span>: <span class="lg-highlight-string">"string"</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> }</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> }</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> }</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">cluster <!-- -->= <span class="lg-highlight-title lg-highlight-class">Mongo</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"mongodb://mymongo.example.net:27017/?replicaSet=myMongoCluster"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->autoEncryptionOpts</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Issue operations against the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
object to interact with the
<code class="leafygreen-ui-1l06pbn">
mymongo.example.net:27017
</code>
cluster and utilize automatic encryption:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"// returns the database object\nmyDB = cluster.getDB(\"myDB\");\n\n// returns the collection object\nmyColl = myDB.getCollection(\"myColl\");\n\nmyColl.insertOne(\n {\n \"name\" : \"J Doe\",\n \"taxid\" : \"123-45-6789\",\n \"taxid-short\" : \"6789\"\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-comment">//</span><span class="lg-highlight-comment"> returns the database </span><span class="lg-highlight-comment">object</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">myDB <!-- -->= <!-- -->cluster.<span class="lg-highlight-title lg-highlight-function">getDB</span>(<span class="lg-highlight-string">"myDB"</span>)<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-comment">//</span><span class="lg-highlight-comment"> returns the collection </span><span class="lg-highlight-comment">object</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">myColl <!-- -->= <!-- -->myDB.<span class="lg-highlight-title lg-highlight-function">getCollection</span>(<span class="lg-highlight-string">"myColl"</span>)<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">myColl.<span class="lg-highlight-title lg-highlight-function">insertOne</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"name"</span> <!-- -->: <span class="lg-highlight-string">"J Doe"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"taxid"</span> <!-- -->: <span class="lg-highlight-string">"123-45-6789"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"taxid-short"</span> <!-- -->: <span class="lg-highlight-string">"6789"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The specified automatic encryption rules encrypt the
<code class="leafygreen-ui-1l06pbn">
taxid
</code>
and
<code class="leafygreen-ui-1l06pbn">
taxid-short
</code>
fields using the specified data encryption key and
algorithm. Only clients configured for the correct KMS
<em>
and
</em>
access to
the specified data encryption key can decrypt the field.
</p>
<p class="leafygreen-ui-1kp3ins">
The following operation creates a new connection object from within a
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
session. The
<code class="leafygreen-ui-1l06pbn">
mongo.tlsOptions
</code>
option enables
a connection using KMIP as the KMS provider:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"var csfleConnection = {\n keyVaultNamespace: \"encryption.__keyVault\",\n kmsProviders: { kmip: { endpoint: \"kmip.example.com:123\" } },\n tlsOptions: { kmip: { tlsCertificateKeyFile: \"/path/to/client/cert-and-key-bundle.pem\" } }\n}\n\ncluster = Mongo(\n \"mongodb://mymongo.example.net:27017/?replicaSet=myMongoCluster\",\n csfleConnection\n);","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> csfleConnection <!-- -->= <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">keyVaultNamespace</span>: <span class="lg-highlight-string">"encryption.__keyVault"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">kmsProviders</span>: <!-- -->{ <span class="lg-highlight-attr">kmip</span>: <!-- -->{ <span class="lg-highlight-attr">endpoint</span>: <span class="lg-highlight-string">"kmip.example.com:123"</span> } }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">tlsOptions</span>: <!-- -->{ <span class="lg-highlight-attr">kmip</span>: <!-- -->{ <span class="lg-highlight-attr">tlsCertificateKeyFile</span>: <span class="lg-highlight-string">"/path/to/client/cert-and-key-bundle.pem"</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">cluster <!-- -->= <span class="lg-highlight-title lg-highlight-class">Mongo</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"mongodb://mymongo.example.net:27017/?replicaSet=myMongoCluster"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->csfleConnection</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)<!-- -->;</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/js-client-side-field-level-encryption/">
Client-Side Field Level Encryption Methods
</a>
for
a complete list of client-side field level encryption methods.
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Connect to a Cluster with the Stable API Enabled
<a class="headerlink leafygreen-ui-1kepx47" href="#connect-to-a-cluster-with-the-stable-api-enabled" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="connect-to-a-cluster-with-the-stable-api-enabled">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The following operation creates a new connection object from within a
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
session. The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-mongo-api-options" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
api
</code>
</span>
</a>
option
enables Stable API V1 and specifies that you cannot
run deprecated command or commands outside of the Stable API.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"cluster = Mongo(\n \"mongodb://mymongo.example.net:27017/?replicaSet=myMongoCluster\",\n null,\n { api: { version: \"1\", strict: true, deprecationErrors: true } }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">cluster <!-- -->= <span class="lg-highlight-title lg-highlight-class">Mongo</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"mongodb://mymongo.example.net:27017/?replicaSet=myMongoCluster"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-literal">null</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">api</span>: <!-- -->{ <span class="lg-highlight-attr">version</span>: <span class="lg-highlight-string">"1"</span>, <span class="lg-highlight-attr">strict</span>: <span class="lg-highlight-literal">true</span>, <span class="lg-highlight-attr">deprecationErrors</span>: <span class="lg-highlight-literal">true</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To interact with the
<code class="leafygreen-ui-1l06pbn">
mymongo.example.net:27017
</code>
cluster, issue
operations against the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
object. For a full list of Stable API
commands, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/stable-api/#std-label-api-v1-command-list">
Stable API Commands
<!-- -->
.
</a>
</p>
</section>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/command/setDefaultRWConcern/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
setDefaultRWConcern
<a class="headerlink leafygreen-ui-1kepx47" href="#setdefaultrwconcern" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="setdefaultrwconcern">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#definition" target="_self">
<span>
Definition
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#compatibility" target="_self">
<span>
Compatibility
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#syntax" target="_self">
<span>
Syntax
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#command-fields" target="_self">
<span>
Command Fields
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#behavior" target="_self">
<span>
Behavior
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#example" target="_self">
<span>
Example
</span>
</a>
</li>
</ul>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Definition
<a class="headerlink leafygreen-ui-1kepx47" href="#definition" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="definition">
</div>
</a>
</h2>
<dl class="dbcommand">
<dt>
<code class="leafygreen-ui-1l06pbn">
setDefaultRWConcern
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-dbcommand-dbcmd.setDefaultRWConcern" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-dbcommand-dbcmd.setDefaultRWConcern">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.setDefaultRWConcern" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
setDefaultRWConcern
</code>
</span>
</a>
administrative command sets the
global default read or write concern configuration for a replica set
or sharded cluster.
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.setDefaultRWConcern" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
setDefaultRWConcern
</code>
</span>
</a>
must be run
against the
<code class="leafygreen-ui-1l06pbn">
admin
</code>
database.
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For replica sets, issue the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.setDefaultRWConcern" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
setDefaultRWConcern
</code>
</span>
</a>
command on the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-primary">
primary
</a>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
.
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For sharded clusters, issue the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.setDefaultRWConcern" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
setDefaultRWConcern
</code>
</span>
</a>
on a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
.
</a>
</p>
</li>
</ul>
</dd>
</dl>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Compatibility
<a class="headerlink leafygreen-ui-1kepx47" href="#compatibility" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="compatibility">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
This command is available in deployments hosted in the following environments:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas?tck=docs_server" target="_self">
<span>
MongoDB Atlas
</span>
</a>
: The fully
managed service for MongoDB deployments in the cloud
</p>
</li>
</ul>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
This command is supported in all MongoDB Atlas clusters.
For information on Atlas support for all commands, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/unsupported-commands/" target="_self">
<span>
Unsupported Commands
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/install-enterprise/#std-label-install-mdb-enterprise">
MongoDB Enterprise
</a>
: The
subscription-based, self-managed version of MongoDB
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/install-community/#std-label-install-mdb-community-edition">
MongoDB Community
</a>
: The
source-available, free-to-use, and self-managed version of MongoDB
</p>
</li>
</ul>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Syntax
<a class="headerlink leafygreen-ui-1kepx47" href="#syntax" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="syntax">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The command has the following syntax:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand(\n {\n setDefaultRWConcern : 1,\n defaultReadConcern: { <read> },\n defaultWriteConcern: { <write> },\n writeConcern: { <write> },\n comment: <any>\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->setDefaultRWConcern <!-- -->: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">defaultReadConcern</span>: <!-- -->{ <!-- --><read concern> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> defaultWriteConcern: { <write concern> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> writeConcern: { <write concern> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> comment: <any></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Command Fields
<a class="headerlink leafygreen-ui-1kepx47" href="#command-fields" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="command-fields">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The command takes the following fields:
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:25%"/>
<col style="width:15%"/>
<col style="width:60%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Field
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Type
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-setDefaultRWConcern-cmd-setDefaultRWConcern" target="_self">
<span>
setDefaultRWConcern
</span>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
int
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-setDefaultRWConcern-cmd-setDefaultRWConcern">
</span>
<p class="leafygreen-ui-1kp3ins">
Set to
<code class="leafygreen-ui-1l06pbn">
1
</code>
.
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-setDefaultRWConcern-cmd-defaultReadConcern" target="_self">
<span>
defaultReadConcern
</span>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
object
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-setDefaultRWConcern-cmd-defaultReadConcern">
</span>
<p class="leafygreen-ui-1kp3ins">
Document containing the global read concern configuration.
Specify a valid
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/read-concern/#std-label-read-concern-option">
read concern object
<!-- -->
.
</a>
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.setDefaultRWConcern" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
setDefaultRWConcern
</code>
</span>
</a>
supports the
following subset of
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/read-concern/#std-label-read-concern-levels">
level
<!-- -->
:
</a>
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/read-concern-local/#mongodb-readconcern-readconcern.-local-">
<code class="leafygreen-ui-1l06pbn">
"local"
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/read-concern-available/#mongodb-readconcern-readconcern.-available-">
<code class="leafygreen-ui-1l06pbn">
"available"
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/read-concern-majority/#mongodb-readconcern-readconcern.-majority-">
<code class="leafygreen-ui-1l06pbn">
"majority"
</code>
</a>
</p>
</li>
</ul>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
To unset the currently configured default read concern,
specify an empty document
<code class="leafygreen-ui-1l06pbn">
{}
</code>
.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.setDefaultRWConcern" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
setDefaultRWConcern
</code>
</span>
</a>
only supports the
<code class="leafygreen-ui-1l06pbn">
levels
</code>
read concern setting.
You cannot specify any other read concern setting in the
default read concern.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
Omit this document to leave the current global read concern
unmodified. If omitted,
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.setDefaultRWConcern" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
setDefaultRWConcern
</code>
</span>
</a>
must
specify
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-setDefaultRWConcern-cmd-defaultWriteConcern" target="_self">
<span>
defaultWriteConcern
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-setDefaultRWConcern-cmd-defaultWriteConcern" target="_self">
<span>
defaultWriteConcern
</span>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
object
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-setDefaultRWConcern-cmd-defaultWriteConcern">
</span>
<p class="leafygreen-ui-1kp3ins">
Document containing the global default write concern
configuration.
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For the write concern
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/write-concern/#std-label-wc-w">
w
</a>
setting,
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.setDefaultRWConcern" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
setDefaultRWConcern
</code>
</span>
</a>
supports all
write concern values
<em>
except
</em>
<code class="leafygreen-ui-1l06pbn">
w : 0
</code>
.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For the write concern
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/write-concern/#std-label-wc-wtimeout">
<code class="leafygreen-ui-1l06pbn">
wtimeout
</code>
</a>
setting,
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.setDefaultRWConcern" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
setDefaultRWConcern
</code>
</span>
</a>
defaults to
<code class="leafygreen-ui-1l06pbn">
0
</code>
if the
setting is omitted. Operations block until the requested
write concern is met. If specifying a global default
<code class="leafygreen-ui-1l06pbn">
wtimeout
</code>
, ensure the value is large enough to allow
write operations to achieve the requested write concern.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
To unset the currently configured write concern, specify
an empty document
<code class="leafygreen-ui-1l06pbn">
{}
</code>
.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
Omit this document to leave the current global write concern
unmodified. If omitted,
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.setDefaultRWConcern" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
setDefaultRWConcern
</code>
</span>
</a>
must
specify
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-setDefaultRWConcern-cmd-defaultReadConcern" target="_self">
<span>
defaultReadConcern
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-setDefaultRWConcern-cmd-writeConcern" target="_self">
<span>
writeConcern
</span>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
object
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-setDefaultRWConcern-cmd-writeConcern">
</span>
<p class="leafygreen-ui-1kp3ins">
Optional. A document that specifies the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/write-concern/#std-label-write-concern">
write concern
</a>
to be used by the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.setDefaultRWConcern" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
setDefaultRWConcern
</code>
</span>
</a>
command itself.
</p>
<p class="leafygreen-ui-1kp3ins">
If omitted,
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.setDefaultRWConcern" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
setDefaultRWConcern
</code>
</span>
</a>
uses the
previously set global default write concern
<em>
if
</em>
one
was configured.
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
comment
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
any
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Optional. A user-provided comment to attach to this command. Once set, this
comment appears alongside records of this command in the following
locations:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/log-messages/#std-label-log-messages-ref">
mongod log messages
</a>
, in the
<code class="leafygreen-ui-1l06pbn">
attr.command.cursor.comment
</code>
field.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/database-profiler/#std-label-profiler">
Database profiler
</a>
output, in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/database-profiler/#mongodb-data-system.profile.command">
<code class="leafygreen-ui-1l06pbn">
command.comment
</code>
</a>
field.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/currentOp/#mongodb-dbcommand-dbcmd.currentOp">
<code class="leafygreen-ui-1l06pbn">
currentOp
</code>
</a>
output, in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/currentOp/#mongodb-data-currentOp.command">
<code class="leafygreen-ui-1l06pbn">
command.comment
</code>
</a>
field.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
A comment can be any valid
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/bson-types/#std-label-bson-types">
BSON type
</a>
(string, integer, object, array, etc).
</p>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.setDefaultRWConcern" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
setDefaultRWConcern
</code>
</span>
</a>
returns an object that contains the
currently configured global default read and write concern. See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/getDefaultRWConcern/#mongodb-dbcommand-dbcmd.getDefaultRWConcern">
<code class="leafygreen-ui-1l06pbn">
getDefaultRWConcern
</code>
</a>
for more complete documentation on
the returned fields.
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Behavior
<a class="headerlink leafygreen-ui-1kepx47" href="#behavior" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="behavior">
</div>
</a>
</h2>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
Requires featureCompatibilityVersion 4.4+
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Each
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
in the replica set or sharded cluster
<em>
must
</em>
have
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/setFeatureCompatibilityVersion/#std-label-set-fcv">
featureCompatibilityVersion
</a>
set to
at least
<code class="leafygreen-ui-1l06pbn">
4.4
</code>
to use
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.setDefaultRWConcern" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
setDefaultRWConcern
</code>
.
</span>
</a>
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 5.0, once the Cluster Wide Write Concern (CWWC)
is set via the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.setDefaultRWConcern" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
setDefaultRWConcern
</code>
</span>
</a>
command the write
concern cannot be unset.
</p>
<p class="leafygreen-ui-1kp3ins">
MongoDB only applies the global default read or write concern to
operations which do not explicitly specify a read or write concern.
</p>
<p class="leafygreen-ui-1kp3ins">
If MongoDB applies the global default read or write concern to an
operation, that operation behaves as if that read or write concern were
explicitly specified by the issuing client.
</p>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Replica Sets
<a class="headerlink leafygreen-ui-1kepx47" href="#replica-sets" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="replica-sets">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Issue
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.setDefaultRWConcern" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
setDefaultRWConcern
</code>
</span>
</a>
against the replica set
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-primary">
primary
</a>
. The primary replicates the new global default settings
to the remaining members of the replica set. Secondaries which have
not yet replicated the updated global default settings continue
using their local 'stale' copy of the defaults.
</p>
<p class="leafygreen-ui-1kp3ins">
Issue the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.setDefaultRWConcern" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
setDefaultRWConcern
</code>
</span>
</a>
command with a
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-setDefaultRWConcern-cmd-writeConcern" target="_self">
<span>
writeConcern
</span>
</a>
of
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/write-concern/#mongodb-writeconcern-writeconcern.-majority-">
<code class="leafygreen-ui-1l06pbn">
w : "majority"
</code>
</a>
to ensure the command only
returns after the changes have propagated to a majority of replica set
members.
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Sharded Clusters
<a class="headerlink leafygreen-ui-1kepx47" href="#sharded-clusters" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="sharded-clusters">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Issue the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.setDefaultRWConcern" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
setDefaultRWConcern
</code>
</span>
</a>
against a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
in the cluster. The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
persists
the updated settings to the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/sharded-cluster-config-servers/#std-label-sharding-config-server">
config server replica set (CSRS)
</a>
. Each
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
periodically
issues a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/getDefaultRWConcern/#mongodb-dbcommand-dbcmd.getDefaultRWConcern">
<code class="leafygreen-ui-1l06pbn">
getDefaultRWConcern
</code>
</a>
against the CSRS to refresh
their local copy of the global settings. A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
uses
its local 'stale' copy of the global defaults during the time period
between refreshes.
</p>
<p class="leafygreen-ui-1kp3ins">
Issue the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.setDefaultRWConcern" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
setDefaultRWConcern
</code>
</span>
</a>
command with a
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-setDefaultRWConcern-cmd-writeConcern" target="_self">
<span>
writeConcern
</span>
</a>
of
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/write-concern/#mongodb-writeconcern-writeconcern.-majority-">
<code class="leafygreen-ui-1l06pbn">
w : "majority"
</code>
</a>
to ensure the command only
returns after the changes have propagated to a majority of CSRS members.
</p>
<p class="leafygreen-ui-1kp3ins">
When an application issues an operation against the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
without explicitly specifying a read or
write concern setting, the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
applies the
corresponding global default setting.
</p>
<p class="leafygreen-ui-1kp3ins">
The global default settings do
<em>
not
</em>
propagate to the individual shards.
You cannot run
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.setDefaultRWConcern" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
setDefaultRWConcern
</code>
</span>
</a>
against a shard.
</p>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.setDefaultRWConcern" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
setDefaultRWConcern
</code>
</span>
</a>
requires
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/setFeatureCompatibilityVersion/#std-label-set-fcv">
featureCompatibilityVersion
</a>
<code class="leafygreen-ui-1l06pbn">
4.4+
</code>
. If you
downgrade your deployment's
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/setFeatureCompatibilityVersion/#std-label-set-fcv">
featureCompatibilityVersion
</a>
from
<code class="leafygreen-ui-1l06pbn">
4.4
</code>
to
<code class="leafygreen-ui-1l06pbn">
4.2
</code>
, all cluster-wide read and write
concern defaults are lost, but
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instances may
continue applying the defaults for up to 30 seconds.
</p>
</div>
</div>
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Sharding Administrative Commands Override Write Concern Settings
<a class="headerlink leafygreen-ui-1kepx47" href="#sharding-administrative-commands-override-write-concern-settings" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="sharding-administrative-commands-override-write-concern-settings">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
Sharding administrative commands that perform write operations on the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/sharded-cluster-config-servers/#std-label-sharding-config-server">
config server
</a>
, such as the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/enableSharding/#mongodb-dbcommand-dbcmd.enableSharding">
<code class="leafygreen-ui-1l06pbn">
enableSharding
</code>
</a>
or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/addShard/#mongodb-dbcommand-dbcmd.addShard">
<code class="leafygreen-ui-1l06pbn">
addShard
</code>
</a>
commands,
have specific behavior with global default write concern settings:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The commands use
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/write-concern/#mongodb-writeconcern-writeconcern.-majority-">
<code class="leafygreen-ui-1l06pbn">
"majority"
</code>
</a>
regardless of the
configured global default write concern.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The commands use a minimum
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/write-concern/#std-label-wc-wtimeout">
wtimeout
</a>
of
<code class="leafygreen-ui-1l06pbn">
60000
</code>
.
The commands only use the global default write concern
<code class="leafygreen-ui-1l06pbn">
wtimeout
</code>
if
it is greater than
<code class="leafygreen-ui-1l06pbn">
60000
</code>
.
</p>
</li>
</ul>
</section>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Access Control
<a class="headerlink leafygreen-ui-1kepx47" href="#access-control" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="access-control">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
For replica sets or sharded clusters enforcing
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/authentication/#std-label-authentication">
Authentication on Self-Managed Deployments
</a>
,
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.setDefaultRWConcern" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
setDefaultRWConcern
</code>
</span>
</a>
requires
that the authenticated user have the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/privilege-actions/#mongodb-authaction-setDefaultRWConcern">
<code class="leafygreen-ui-1l06pbn">
setDefaultRWConcern
</code>
</a>
privilege action.
</p>
<p class="leafygreen-ui-1kp3ins">
The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/built-in-roles/#mongodb-authrole-clusterManager">
<code class="leafygreen-ui-1l06pbn">
clusterManager
</code>
</a>
built-in role provides the required
privileges to run
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.setDefaultRWConcern" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
setDefaultRWConcern
</code>
.
</span>
</a>
</p>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Example
<a class="headerlink leafygreen-ui-1kepx47" href="#example" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="example">
</div>
</a>
</h2>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Set Global Default Write Concern
<a class="headerlink leafygreen-ui-1kepx47" href="#set-global-default-write-concern" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="set-global-default-write-concern">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The following operation sets the global write concern to the following:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/write-concern/#mongodb-writeconcern-writeconcern.-number-">
<code class="leafygreen-ui-1l06pbn">
w: 2
</code>
</a>
</p>
</li>
</ul>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand({\n \"setDefaultRWConcern\" : 1,\n \"defaultWriteConcern\" : {\n \"w\" : 2\n }\n})","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>(<!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"setDefaultRWConcern"</span> <!-- -->: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"defaultWriteConcern"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"w"</span> <!-- -->: <span class="lg-highlight-number">2</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">})</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The operation returns a document similar to the following:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n \"defaultWriteConcern\" : {\n \"w\" : 2\n },\n \"updateOpTime\" : Timestamp(1586290895, 1),\n \"updateWallClockTime\" : ISODate(\"2020-04-07T20:21:41.849Z\"),\n \"localUpdateWallClockTime\" : ISODate(\"2020-04-07T20:21:41.862Z\"),\n \"ok\" : 1,\n \"$clusterTime\" : { ... }\n \"operationTime\" : Timestamp(1586290925, 1)\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"defaultWriteConcern"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"w"</span> <!-- -->: <span class="lg-highlight-number">2</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"updateOpTime"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">Timestamp</span>(<span class="lg-highlight-number">1586290895</span>, <span class="lg-highlight-number">1</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"updateWallClockTime"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-04-07T20:21:41.849Z"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"localUpdateWallClockTime"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-04-07T20:21:41.862Z"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"ok"</span> <!-- -->: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"$clusterTime"</span> <!-- -->: <!-- -->{ <!-- -->...<!-- --> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"operationTime"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">Timestamp</span>(<span class="lg-highlight-number">1586290925</span>, <span class="lg-highlight-number">1</span>)</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Set Global Default Read Concern
<a class="headerlink leafygreen-ui-1kepx47" href="#set-global-default-read-concern" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="set-global-default-read-concern">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The following operation sets the global read concern to
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/read-concern-majority/#mongodb-readconcern-readconcern.-majority-">
<code class="leafygreen-ui-1l06pbn">
"majority"
</code>
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand({\n \"setDefaultRWConcern\" : 1,\n \"defaultReadConcern\" : { \"level\" : \"majority\" }\n})","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>(<!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"setDefaultRWConcern"</span> <!-- -->: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"defaultReadConcern"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"level"</span> <!-- -->: <span class="lg-highlight-string">"majority"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">})</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The operation returns a document similar to the following:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n \"defaultReadConcern\" : {\n \"level\" : \"majority\"\n },\n \"updateOpTime\" : Timestamp(1586290895, 1),\n \"updateWallClockTime\" : ISODate(\"2020-04-07T20:21:41.849Z\"),\n \"localUpdateWallClockTime\" : ISODate(\"2020-04-07T20:21:41.862Z\"),\n \"ok\" : 1,\n \"$clusterTime\" : { ... }\n \"operationTime\" : Timestamp(1586290925, 1)\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"defaultReadConcern"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"level"</span> <!-- -->: <span class="lg-highlight-string">"majority"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"updateOpTime"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">Timestamp</span>(<span class="lg-highlight-number">1586290895</span>, <span class="lg-highlight-number">1</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"updateWallClockTime"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-04-07T20:21:41.849Z"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"localUpdateWallClockTime"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-04-07T20:21:41.862Z"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"ok"</span> <!-- -->: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"$clusterTime"</span> <!-- -->: <!-- -->{ <!-- -->...<!-- --> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"operationTime"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">Timestamp</span>(<span class="lg-highlight-number">1586290925</span>, <span class="lg-highlight-number">1</span>)</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-set_global_default_write_concern">
</span>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Set Global Default Read and Write Concern
<a class="headerlink leafygreen-ui-1kepx47" href="#set-global-default-read-and-write-concern" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="set-global-default-read-and-write-concern">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The following operation sets the global default read and write concern
to the following:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/write-concern/#mongodb-writeconcern-writeconcern.-number-">
<code class="leafygreen-ui-1l06pbn">
w: 2
</code>
</a>
write concern
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/read-concern-majority/#mongodb-readconcern-readconcern.-majority-">
<code class="leafygreen-ui-1l06pbn">
level: "majority"
</code>
</a>
read concern.
</p>
</li>
</ul>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand({\n \"setDefaultRWConcern\" : 1,\n \"defaultWriteConcern\" : {\n \"w\" : 2\n },\n \"defaultReadConcern\" : { \"level\" : \"majority\" }\n})","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>(<!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"setDefaultRWConcern"</span> <!-- -->: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"defaultWriteConcern"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"w"</span> <!-- -->: <span class="lg-highlight-number">2</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"defaultReadConcern"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"level"</span> <!-- -->: <span class="lg-highlight-string">"majority"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">})</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The operation returns a document similar to the following:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"\"defaultWriteConcern\" : {\n \"w\" : 2\n},\n\"defaultReadConcern\" : {\n \"level\" : \"majority\"\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string">"defaultWriteConcern"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"w"</span> <!-- -->: <span class="lg-highlight-number">2</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string">"defaultReadConcern"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"level"</span> <!-- -->: <span class="lg-highlight-string">"majority"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Unset Global Default Read and Write Concern
<a class="headerlink leafygreen-ui-1kepx47" href="#unset-global-default-read-and-write-concern" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="unset-global-default-read-and-write-concern">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
You can:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Unset the global default read concern.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Only unset the global default write concern if you haven't already
set it.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
For example, assume the global default read concern is set to
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/read-concern-majority/#mongodb-readconcern-readconcern.-majority-">
<code class="leafygreen-ui-1l06pbn">
level: "majority"
</code>
</a>
. To unset the global
default read concern, use an empty document
<code class="leafygreen-ui-1l06pbn">
{}
</code>
:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand( {\n \"setDefaultRWConcern\" : 1,\n \"defaultReadConcern\" : {}\n} )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>( <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"setDefaultRWConcern"</span> <!-- -->: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"defaultReadConcern"</span> <!-- -->: <!-- -->{<!-- -->}</td></tr><tr class=""><td class="leafygreen-ui-7razhx">} )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The operation returns a document that indicates the operation was
successful:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n defaultReadConcern: { level: 'local' },\n defaultWriteConcern: { w: 2, wtimeout: 0 },\n updateOpTime: Timestamp({ t: 1656696934, i: 1 }),\n updateWallClockTime: ISODate(\"2022-07-01T17:35:40.578Z\"),\n defaultWriteConcernSource: 'global',\n defaultReadConcernSource: 'implicit',\n localUpdateWallClockTime: ISODate(\"2022-07-01T17:35:40.578Z\"),\n ok: 1,\n '$clusterTime': {\n ...\n },\n operationTime: Timestamp({ t: 1656632593, i: 1 })\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">defaultReadConcern</span>: <!-- -->{ <span class="lg-highlight-attr">level</span>: <span class="lg-highlight-string">'local'</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">defaultWriteConcern</span>: <!-- -->{ <span class="lg-highlight-attr">w</span>: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-attr">wtimeout</span>: <span class="lg-highlight-number">0</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">updateOpTime</span>: <span class="lg-highlight-title lg-highlight-class">Timestamp</span>(<!-- -->{ <span class="lg-highlight-attr">t</span>: <span class="lg-highlight-number">1656696934</span>, <span class="lg-highlight-attr">i</span>: <span class="lg-highlight-number">1</span> })<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">updateWallClockTime</span>: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2022-07-01T17:35:40.578Z"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">defaultWriteConcernSource</span>: <span class="lg-highlight-string">'global'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">defaultReadConcernSource</span>: <span class="lg-highlight-string">'implicit'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">localUpdateWallClockTime</span>: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2022-07-01T17:35:40.578Z"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">ok</span>: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">'$clusterTime'</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">operationTime</span>: <span class="lg-highlight-title lg-highlight-class">Timestamp</span>(<!-- -->{ <span class="lg-highlight-attr">t</span>: <span class="lg-highlight-number">1656632593</span>, <span class="lg-highlight-attr">i</span>: <span class="lg-highlight-number">1</span> })</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
You can only unset the global default write concern if you haven't
already set it.
</p>
<p class="leafygreen-ui-1kp3ins">
To unset the global default write concern, use an empty document
<code class="leafygreen-ui-1l06pbn">
{}
</code>
:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand( {\n \"setDefaultRWConcern\" : 1,\n \"defaultWriteConcern\" : {}\n} )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>( <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"setDefaultRWConcern"</span> <!-- -->: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"defaultWriteConcern"</span> <!-- -->: <!-- -->{<!-- -->}</td></tr><tr class=""><td class="leafygreen-ui-7razhx">} )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
If the global default write concern is:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Unset, the operation succeeds.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Already set, the operation returns the following error.
</p>
</li>
</ul>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"MongoServerError: The global default write concern cannot be unset\nonce it is set.","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">MongoServerError</span>: <span class="lg-highlight-title lg-highlight-class">The</span> <span class="lg-highlight-variable lg-highlight-language">global</span> <span class="lg-highlight-keyword">default</span> write concern cannot be unset</td></tr><tr class=""><td class="leafygreen-ui-7razhx">once it is set.</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</section>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/method/db.collection.totalIndexSize/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
db.collection.totalIndexSize()
<a class="headerlink leafygreen-ui-1kepx47" href="#db.collection.totalindexsize--" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="db.collection.totalindexsize--">
</div>
</a>
</h1>
<dl class="method">
<dt>
<code class="leafygreen-ui-1l06pbn">
db.collection.totalIndexSize()
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-method-db.collection.totalIndexSize" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-method-db.collection.totalIndexSize">
</div>
</a>
</dt>
<dd>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
mongosh Method
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
This page documents a
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
method. This is
<em>
not
</em>
the documentation for database commands or language-specific drivers,
such as Node.js.
</p>
<p class="leafygreen-ui-1kp3ins">
For the database command, see the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/collStats/#mongodb-data-collStats.totalIndexSize">
<code class="leafygreen-ui-1l06pbn">
totalIndexSize
</code>
</a>
field returned
by the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/collStats/#mongodb-dbcommand-dbcmd.collStats">
<code class="leafygreen-ui-1l06pbn">
collStats
</code>
</a>
command.
</p>
<p class="leafygreen-ui-1kp3ins">
For MongoDB API drivers, refer to the language-specific
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/drivers/" target="_self">
<span>
MongoDB driver documentation.
</span>
</a>
</p>
</div>
</div>
<table class="css-11h39yh e1nex8bq0">
<colgroup>
<col class="field-name"/>
<col class="field-body"/>
</colgroup>
<tbody>
<tr class="css-x8snli">
<th>
Returns:
</th>
<td>
The total size of all indexes for the collection.
<p class="leafygreen-ui-1kp3ins">
If an index uses prefix compression (which is the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#std-option-mongod.--wiredTigerIndexPrefixCompression">
<code class="leafygreen-ui-1l06pbn">
default for WiredTiger
</code>
</a>
), the returned size
reflects the compressed size.
</p>
</td>
</tr>
</tbody>
</table>
<p class="leafygreen-ui-1kp3ins">
To run on a replica set member,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/collStats/#mongodb-dbcommand-dbcmd.collStats">
<code class="leafygreen-ui-1l06pbn">
collStats
</code>
</a>
operations require the member
to be in
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-states/#mongodb-replstate-replstate.PRIMARY">
<code class="leafygreen-ui-1l06pbn">
PRIMARY
</code>
</a>
or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-states/#mongodb-replstate-replstate.SECONDARY">
<code class="leafygreen-ui-1l06pbn">
SECONDARY
</code>
</a>
state. If the member
is in another state, such as
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-states/#mongodb-replstate-replstate.STARTUP2">
<code class="leafygreen-ui-1l06pbn">
STARTUP2
</code>
</a>
, the
operation errors.
</p>
</dd>
</dl>
</section>
|
https://www.mongodb.com/docs/manual/core/moveable-collections/multi-tenant/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Multi-tenant Architecture with Moveable Collections
<a class="headerlink leafygreen-ui-1kepx47" href="#multi-tenant-architecture-with-moveable-collections" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="multi-tenant-architecture-with-moveable-collections">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#considerations" target="_self">
<span>
Considerations
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#learn-more" target="_self">
<span>
Learn More
</span>
</a>
</li>
</ul>
</div>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
8.0
</em>
.
</p>
</div>
<p class="leafygreen-ui-1kp3ins">
In a multi-tenant architecture, a single instance of an application
serves multiple users. Multi-tenant users share resources, and generally
data belonging to the same tenant is kept on a single shard.
</p>
<p class="leafygreen-ui-1kp3ins">
If your multi-tenant configuration has a single tenant per database and
the majority of its workload takes place on a single shard, you can move
frequently-accessed collections to other shards for more even workload
distribution. This reduces the number of collections on the original
shard and improves performance system-wide.
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
Non-Sharded Clusters
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
If your multi-tenant deployment is a replica set, you can convert it
to a sharded cluster and add additional shards to more evenly
distribute your workload. For more information, see either:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/scale-cluster/" target="_self">
<span>
Modify a Cluster
</span>
</a>
for MongoDB Atlas
deployments
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/convert-replica-set-to-replicated-shard-cluster/#std-label-manual-convert-replica-set-to-sharded-cluster">
Convert a Self-Managed Replica Set to a Sharded Cluster
</a>
</p>
</li>
</ul>
</div>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Considerations
<a class="headerlink leafygreen-ui-1kepx47" href="#considerations" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="considerations">
</div>
</a>
</h2>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Moving collections has operational overhead. Before you move
collections, review the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/sh.moveCollection/#mongodb-method-sh.moveCollection">
<code class="leafygreen-ui-1l06pbn">
sh.moveCollection()
</code>
</a>
documentation
for performance considerations.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The optimal multi-tenant configuration depends on your workload and
application needs. Moving collections to new shards is not as scalable
as
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/build-multi-tenant-arch/#std-label-all-tenants-single" target="_self">
<span>
multi-tenancy in a single database with shared collections
</span>
</a>
. However, having each database correspond to a
single tenant allows for more customizable security and access
patterns.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
To optimize performance for cross-collection operations (like
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/lookup/#mongodb-pipeline-pipe.-lookup">
<code class="leafygreen-ui-1l06pbn">
$lookup
</code>
</a>
or transactions that access multiple collections),
place all collections for a given tenant on the same shard.
</p>
</li>
</ul>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Learn More
<a class="headerlink leafygreen-ui-1kepx47" href="#learn-more" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="learn-more">
</div>
</a>
</h2>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/move-a-collection/#std-label-task-move-a-collection">
Move a Collection
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/build-multi-tenant-arch/" target="_self">
<span>
Build a Multi-Tenant Architecture
</span>
</a>
</p>
</li>
</ul>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/command/replSetMaintenance/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
replSetMaintenance
<a class="headerlink leafygreen-ui-1kepx47" href="#replsetmaintenance" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="replsetmaintenance">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#definition" target="_self">
<span>
Definition
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#compatibility" target="_self">
<span>
Compatibility
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#syntax" target="_self">
<span>
Syntax
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#behavior" target="_self">
<span>
Behavior
</span>
</a>
</li>
</ul>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Definition
<a class="headerlink leafygreen-ui-1kepx47" href="#definition" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="definition">
</div>
</a>
</h2>
<dl class="dbcommand">
<dt>
<code class="leafygreen-ui-1l06pbn">
replSetMaintenance
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-dbcommand-dbcmd.replSetMaintenance" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-dbcommand-dbcmd.replSetMaintenance">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.replSetMaintenance" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
replSetMaintenance
</code>
</span>
</a>
admin command enables or disables the
maintenance mode for a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-secondary">
secondary
</a>
member of a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-replica-set">
replica set
<!-- -->
.
</a>
</p>
</dd>
</dl>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Compatibility
<a class="headerlink leafygreen-ui-1kepx47" href="#compatibility" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="compatibility">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
This command is available in deployments hosted in the following environments:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas?tck=docs_server" target="_self">
<span>
MongoDB Atlas
</span>
</a>
: The fully
managed service for MongoDB deployments in the cloud
</p>
</li>
</ul>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
This command is not supported in M0, M2, M5, and M10+ clusters.
For more information, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/unsupported-commands/" target="_self">
<span>
Unsupported Commands
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/install-enterprise/#std-label-install-mdb-enterprise">
MongoDB Enterprise
</a>
: The
subscription-based, self-managed version of MongoDB
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/install-community/#std-label-install-mdb-community-edition">
MongoDB Community
</a>
: The
source-available, free-to-use, and self-managed version of MongoDB
</p>
</li>
</ul>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Syntax
<a class="headerlink leafygreen-ui-1kepx47" href="#syntax" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="syntax">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The command has the following syntax:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.runCommand(\n {\n replSetMaintenance: <boolean>\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">runCommand</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">replSetMaintenance</span>: <<!-- -->boolean<!-- -->></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->}</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</button>
</div>
</div>
</div>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Behavior
<a class="headerlink leafygreen-ui-1kepx47" href="#behavior" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="behavior">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
Consider the following behavior when running the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.replSetMaintenance" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
replSetMaintenance
</code>
</span>
</a>
command:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
You cannot run the command on the Primary.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
You must run the command against the
<code class="leafygreen-ui-1l06pbn">
admin
</code>
database.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
When enabled
<code class="leafygreen-ui-1l06pbn">
replSetMaintenance: true
</code>
, the member enters the
<code class="leafygreen-ui-1l06pbn">
RECOVERING
</code>
state. While the secondary is
<code class="leafygreen-ui-1l06pbn">
RECOVERING
</code>
:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The member is not accessible for read operations.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The member continues to sync its
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-oplog">
oplog
</a>
from the Primary.
</p>
</li>
</ul>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
When a node receives a
<code class="leafygreen-ui-1l06pbn">
replSetMaintenance: true
</code>
request, it
adds a maintenance mode task to a queue of tasks. If the queue of
tasks was empty and now is not, the node will transition to
<code class="leafygreen-ui-1l06pbn">
RECOVERING
</code>
state and begin to reject read requests. When a node
receives a
<code class="leafygreen-ui-1l06pbn">
replSetMaintenance: false
</code>
request, it removes a
maintenance mode task from the queue (even if that task was
initiated by a different client). If the request empties
the maintenance mode task queue, the node will return to
<code class="leafygreen-ui-1l06pbn">
SECONDARY
</code>
state.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
If you want to prevent a node from servicing reads, consider using
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/replica-set-hidden-member/">
Hidden Replica Set Members
</a>
instead.
</p>
</li>
</ul>
</section>
</section>
|
https://www.mongodb.com/docs/manual/tutorial/upgrade-keyfile-to-x509/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Upgrade Self-Managed MongoDB from Keyfile Authentication to x.509 Authentication
<a class="headerlink leafygreen-ui-1kepx47" href="#upgrade-self-managed-mongodb-from-keyfile-authentication-to-x.509-authentication" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="upgrade-self-managed-mongodb-from-keyfile-authentication-to-x.509-authentication">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#upgrade-procedures--using-tls-options-" target="_self">
<span>
Upgrade Procedures (Using
<code class="css-1kekw28 e1wawog0">
tls
</code>
Options)
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#upgrade-procedures--using-ssl-options-" target="_self">
<span>
Upgrade Procedures (Using
<code class="css-1kekw28 e1wawog0">
ssl
</code>
Options)
</span>
</a>
</li>
</ul>
</div>
<p class="leafygreen-ui-1kp3ins">
To upgrade clusters that are currently using
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/security-internal-authentication/#std-label-internal-auth-keyfile">
keyfile authentication
</a>
to x.509 authentication, use the following
rolling upgrade processes.
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
MongoDB
<!-- -->
disables support for TLS 1.0
encryption on systems where TLS 1.1+ is available.
</p>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-upgrade-to-x509-tls">
</span>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Upgrade Procedures (Using
<code class="leafygreen-ui-1l06pbn">
tls
</code>
Options)
<a class="headerlink leafygreen-ui-1kepx47" href="#upgrade-procedures--using-tls-options-" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="upgrade-procedures--using-tls-options-">
</div>
</a>
</h2>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
MongoDB provides
<code class="leafygreen-ui-1l06pbn">
net.tls
</code>
settings (and
<code class="leafygreen-ui-1l06pbn">
--tls
</code>
command-line options) that
correspond to the
<code class="leafygreen-ui-1l06pbn">
net.ssl
</code>
settings (and
<code class="leafygreen-ui-1l06pbn">
--ssl
</code>
command-line options).
The new
<code class="leafygreen-ui-1l06pbn">
tls
</code>
settings provide
<strong>
identical
</strong>
functionality as the
<code class="leafygreen-ui-1l06pbn">
ssl
</code>
settings since MongoDB has always supported TLS 1.0 and later.
</p>
<p class="leafygreen-ui-1kp3ins">
The procedures in this section use the
<code class="leafygreen-ui-1l06pbn">
tls
</code>
settings/options. For
procedures using the
<code class="leafygreen-ui-1l06pbn">
ssl
</code>
settings/options, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-upgrade-to-x509-ssl" target="_self">
<span>
Upgrade Procedures (Using
<code class="leafygreen-ui-1l06pbn">
ssl
</code>
Options)
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-upgrade-sslkeyfile-to-x509-tls">
</span>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Upgrade (Using
<code class="leafygreen-ui-1l06pbn">
tls
</code>
Options) Clusters Using TLS/SSL and Keyfile
<a class="headerlink leafygreen-ui-1kepx47" href="#upgrade--using-tls-options--clusters-using-tls-ssl-and-keyfile" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="upgrade--using-tls-options--clusters-using-tls-ssl-and-keyfile">
</div>
</a>
</h3>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
The procedure uses the
<code class="leafygreen-ui-1l06pbn">
tls
</code>
settings/options. For procedures
using the
<code class="leafygreen-ui-1l06pbn">
ssl
</code>
settings/options, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-upgrade-sslkeyfile-to-x509-ssl" target="_self">
<span>
Clusters Currently Using TLS/SSL (Using
<code class="leafygreen-ui-1l06pbn">
ssl
</code>
Options)
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
For clusters using TLS/SSL and keyfile authentication, to upgrade to x.509
cluster authentication, use the following rolling upgrade process:
</p>
<ol class="leafygreen-ui-rioki0" type="1">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For each member of a cluster, add the following settings to the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#std-label-conf-file">
configuration file
</a>
and restart:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<dl>
<dt>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-security.clusterAuthMode">
<code class="leafygreen-ui-1l06pbn">
security.clusterAuthMode
</code>
</a>
</dt>
<dd class="css-1ufxuu7">
Set to
<code class="leafygreen-ui-1l06pbn">
sendKeyFile
</code>
. With this setting value, each node continues
to send its keyfile to authenticate itself as a member.
However, each node can receive either a keyfile or an x.509
certificate from other members to authenticate those members.
</dd>
</dl>
</li>
<li class="leafygreen-ui-d7p7b6">
<dl>
<dt>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-net.tls.clusterFile">
<code class="leafygreen-ui-1l06pbn">
net.tls.clusterFile
</code>
</a>
</dt>
<dd class="css-1ufxuu7">
Set to the appropriate path of the node's certificate key file
for membership authentication. The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
/
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
presents this file
to other members of the cluster to identify itself as a member.
</dd>
</dl>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
Include other
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/configure-ssl/#std-label-configure-mongod-mongos-for-tls-ssl">
TLS/SSL options
</a>
and
any other options as appropriate for your specific configuration.
</p>
<p class="leafygreen-ui-1kp3ins">
For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"net:\n tls:\n mode: requireTLS\n certificateKeyFile: /etc/ssl/mongodb.pem\n CAFile: /etc/ssl/caToValidateReceivedCertificates.pem\n clusterFile: \"/etc/ssl/myReplMembershipCertificateKeyFile.pem\"\nsecurity:\n clusterAuthMode: sendKeyFile\n keyFile: /my/securely/located/membershipkey\nreplication:\n replSetName: myReplicaSet\nnet:\n bindIp: localhost,mongodb0.example.net\n port: 27017\nsystemLog:\n destination: file\n path: \"/var/log/mongodb/mongod.log\"\n logAppend: true\nstorage:\n dbPath: \"/var/lib/mongodb\"\nprocessManagement:\n fork: true","programmingLanguage":"YAML"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light yaml leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">net:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">tls:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">mode:</span> <span class="lg-highlight-string">requireTLS</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">certificateKeyFile:</span> <span class="lg-highlight-string">/etc/ssl/mongodb.pem</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">CAFile:</span> <span class="lg-highlight-string">/etc/ssl/caToValidateReceivedCertificates.pem</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">clusterFile:</span> <span class="lg-highlight-string">"/etc/ssl/myReplMembershipCertificateKeyFile.pem"</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">security:</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">clusterAuthMode:</span> <span class="lg-highlight-string">sendKeyFile</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">keyFile:</span> <span class="lg-highlight-string">/my/securely/located/membershipkey</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">replication:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">replSetName:</span> <span class="lg-highlight-string">myReplicaSet</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">net:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">bindIp:</span> <span class="lg-highlight-string">localhost,mongodb0.example.net</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">port:</span> <span class="lg-highlight-number">27017</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">systemLog:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">destination:</span> <span class="lg-highlight-string">file</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">path:</span> <span class="lg-highlight-string">"/var/log/mongodb/mongod.log"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">logAppend:</span> <span class="lg-highlight-literal">true</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">storage:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">dbPath:</span> <span class="lg-highlight-string">"/var/lib/mongodb"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">processManagement:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">fork:</span> <span class="lg-highlight-literal">true</span></td></tr></tbody></table></code></pre>
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<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</svg>
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</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Update all nodes of the cluster to include the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-security.clusterAuthMode">
<code class="leafygreen-ui-1l06pbn">
security.clusterAuthMode
</code>
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-net.tls.clusterFile">
<code class="leafygreen-ui-1l06pbn">
net.tls.clusterFile
</code>
</a>
settings before continuing.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Connect to each node and use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/setParameter/#mongodb-dbcommand-dbcmd.setParameter">
<code class="leafygreen-ui-1l06pbn">
setParameter
</code>
</a>
command to update the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/parameters/#mongodb-parameter-param.clusterAuthMode">
<code class="leafygreen-ui-1l06pbn">
clusterAuthMode
</code>
</a>
to
<code class="leafygreen-ui-1l06pbn">
sendX509
</code>
.
<a class="footnote-reference header-buffer" href="#footnote-update-mode-alternative" id="ref-update-mode-alternative-id1">
[
<!-- -->
1
<!-- -->
]
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand( { setParameter: 1, clusterAuthMode: \"sendX509\" } )","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.adminCommand( { setParameter: 1, clusterAuthMode: <span class="lg-highlight-string">"sendX509"</span> } )</td></tr></tbody></table></code></pre>
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</div>
<p class="leafygreen-ui-1kp3ins">
With
<code class="leafygreen-ui-1l06pbn">
sendX509
</code>
, each node sends its
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-net.tls.clusterFile">
<code class="leafygreen-ui-1l06pbn">
net.tls.clusterFile
</code>
</a>
to authenticate itself as a member.
However, each node can receive either a keyfile or an x.509
certificate from other members to authenticate those members.
</p>
<p class="leafygreen-ui-1kp3ins">
Upgrade all nodes of the cluster to this setting before continuing.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Optional but recommended. Finally, for each node of the cluster,
connect to the node and use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/setParameter/#mongodb-dbcommand-dbcmd.setParameter">
<code class="leafygreen-ui-1l06pbn">
setParameter
</code>
</a>
command to
update the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/parameters/#mongodb-parameter-param.clusterAuthMode">
<code class="leafygreen-ui-1l06pbn">
clusterAuthMode
</code>
</a>
to
<code class="leafygreen-ui-1l06pbn">
x509
</code>
to only use the
x.509 certificate for authentication.
<a class="footnote-reference header-buffer" href="#footnote-update-mode-alternative" id="ref-update-mode-alternative-id2">
[
<!-- -->
1
<!-- -->
]
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand( { setParameter: 1, clusterAuthMode: \"x509\" } )","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.adminCommand( { setParameter: 1, clusterAuthMode: <span class="lg-highlight-string">"x509"</span> } )</td></tr></tbody></table></code></pre>
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</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
After the upgrade of all nodes, edit the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/">
configuration file
</a>
with the appropriate x.509
settings to ensure that upon subsequent restarts, the cluster uses
x.509 authentication. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"net:\n tls:\n mode: requireTLS\n certificateKeyFile: /etc/ssl/mongodb.pem\n CAFile: /etc/ssl/caToValidateReceivedCertificates.pem\n clusterFile: \"/etc/ssl/myReplMembershipCertificateKeyFile.pem\"\nsecurity.clusterAuthMode: x509\nreplication:\n replSetName: myReplicaSet\nnet:\n bindIp: localhost,mongodb0.example.net\n port: 27017\nsystemLog:\n destination: file\n path: \"/var/log/mongodb/mongod.log\"\n logAppend: true\nstorage:\n dbPath: \"/var/lib/mongodb\"\nprocessManagement:\n fork: true","programmingLanguage":"YAML"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light yaml leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">net:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">tls:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">mode:</span> <span class="lg-highlight-string">requireTLS</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">certificateKeyFile:</span> <span class="lg-highlight-string">/etc/ssl/mongodb.pem</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">CAFile:</span> <span class="lg-highlight-string">/etc/ssl/caToValidateReceivedCertificates.pem</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">clusterFile:</span> <span class="lg-highlight-string">"/etc/ssl/myReplMembershipCertificateKeyFile.pem"</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">security.clusterAuthMode:</span> <span class="lg-highlight-string">x509</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">replication:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">replSetName:</span> <span class="lg-highlight-string">myReplicaSet</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">net:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">bindIp:</span> <span class="lg-highlight-string">localhost,mongodb0.example.net</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">port:</span> <span class="lg-highlight-number">27017</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">systemLog:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">destination:</span> <span class="lg-highlight-string">file</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">path:</span> <span class="lg-highlight-string">"/var/log/mongodb/mongod.log"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">logAppend:</span> <span class="lg-highlight-literal">true</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">storage:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">dbPath:</span> <span class="lg-highlight-string">"/var/lib/mongodb"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">processManagement:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">fork:</span> <span class="lg-highlight-literal">true</span></td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
You can also configure
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
using command-line options instead of the
configuration file:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
, see:
-
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#std-option-mongod.--tlsMode">
<code class="leafygreen-ui-1l06pbn">
--tlsMode
</code>
</a>
-
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#std-option-mongod.--tlsCertificateKeyFile">
<code class="leafygreen-ui-1l06pbn">
--tlsCertificateKeyFile
</code>
</a>
-
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#std-option-mongod.--tlsCAFile">
<code class="leafygreen-ui-1l06pbn">
--tlsCAFile
</code>
</a>
-
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#std-option-mongod.--tlsClusterFile">
<code class="leafygreen-ui-1l06pbn">
--tlsClusterFile
</code>
</a>
-
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#std-option-mongod.--clusterAuthMode">
<code class="leafygreen-ui-1l06pbn">
--clusterAuthMode
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
, see:
-
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#std-option-mongos.--tlsMode">
<code class="leafygreen-ui-1l06pbn">
--tlsMode
</code>
</a>
-
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#std-option-mongos.--tlsCertificateKeyFile">
<code class="leafygreen-ui-1l06pbn">
--tlsCertificateKeyFile
</code>
</a>
-
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#std-option-mongos.--tlsCAFile">
<code class="leafygreen-ui-1l06pbn">
--tlsCAFile
</code>
</a>
-
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#std-option-mongos.--tlsClusterFile">
<code class="leafygreen-ui-1l06pbn">
--tlsClusterFile
</code>
</a>
-
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#std-option-mongos.--clusterAuthMode">
<code class="leafygreen-ui-1l06pbn">
--clusterAuthMode
</code>
</a>
</p>
</li>
</ul>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-upgrade-keyfile-to-x509-tls">
</span>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Update (Using
<code class="leafygreen-ui-1l06pbn">
tls
</code>
Options) Clusters Using Keyfile but Not TLS/SSL
<a class="headerlink leafygreen-ui-1kepx47" href="#update--using-tls-options--clusters-using-keyfile-but-not-tls-ssl" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="update--using-tls-options--clusters-using-keyfile-but-not-tls-ssl">
</div>
</a>
</h3>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
The procedure uses the
<code class="leafygreen-ui-1l06pbn">
tls
</code>
options. For procedures using the
<code class="leafygreen-ui-1l06pbn">
ssl
</code>
settings/options, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-upgrade-keyfile-to-x509-ssl" target="_self">
<span>
Clusters Currently Not Using TLS/SSL (Using
<code class="leafygreen-ui-1l06pbn">
ssl
</code>
Options)
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
For clusters using keyfile authentication but not TLS/SSL, to upgrade
to x.509 membership authentication and TLS/SSL connections:
</p>
<ol class="leafygreen-ui-rioki0" type="1">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For each member of a cluster, add the following settings to the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#std-label-conf-file">
configuration file
</a>
and restart:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<dl>
<dt>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-net.tls.mode">
<code class="leafygreen-ui-1l06pbn">
net.tls.mode
</code>
</a>
</dt>
<dd class="css-1ufxuu7">
Set to
<code class="leafygreen-ui-1l06pbn">
allowTLS
</code>
. This value allows the node to accept
both TLS/SSL and non-TLS/non-SSL incoming connections. Its
outgoing connections do not use TLS/SSL.
</dd>
</dl>
</li>
<li class="leafygreen-ui-d7p7b6">
<dl>
<dt>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-net.tls.certificateKeyFile">
<code class="leafygreen-ui-1l06pbn">
net.tls.certificateKeyFile
</code>
</a>
</dt>
<dd class="css-1ufxuu7">
Set to the path of the file that contains the TLS/SSL
certificate and key. The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
/
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
presents this file
to its clients to establish the instance's identity. Required
when using TLS/SSL.
</dd>
</dl>
</li>
<li class="leafygreen-ui-d7p7b6">
<dl>
<dt>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-net.tls.clusterFile">
<code class="leafygreen-ui-1l06pbn">
net.tls.clusterFile
</code>
</a>
</dt>
<dd class="css-1ufxuu7">
Set to the appropriate path of the node's certificate key file
for membership authentication. The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
/
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
presents this file
to other members of the cluster to identify itself as a member.
</dd>
</dl>
</li>
<li class="leafygreen-ui-d7p7b6">
<dl>
<dt>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-net.tls.CAFile">
<code class="leafygreen-ui-1l06pbn">
net.tls.CAFile
</code>
</a>
</dt>
<dd class="css-1ufxuu7">
Set to the path of the file that contains the certificate
chain for verifying received certificates.
</dd>
</dl>
</li>
<li class="leafygreen-ui-d7p7b6">
<dl>
<dt>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-security.clusterAuthMode">
<code class="leafygreen-ui-1l06pbn">
security.clusterAuthMode
</code>
</a>
</dt>
<dd class="css-1ufxuu7">
Set to
<code class="leafygreen-ui-1l06pbn">
sendKeyFile
</code>
. This allows each node continues to
send its keyfile to authenticate itself as a member. However,
each node can receive either a keyfile or an x.509 certificate
from other members to authenticate those members.
</dd>
</dl>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
Include other
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/configure-ssl/#std-label-configure-mongod-mongos-for-tls-ssl">
TLS/SSL options
</a>
and
any other options as appropriate for your specific configuration.
</p>
<p class="leafygreen-ui-1kp3ins">
For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"net:\n tls:\n mode: allowTLS\n certificateKeyFile: /etc/ssl/mongodb.pem\n clusterFile: \"/etc/ssl/myReplMembershipCertificateKeyFile.pem\"\n CAFile: /etc/ssl/caToValidateReceivedCertificates.pem\nsecurity:\n clusterAuthMode: sendKeyFile\n keyFile: /my/securely/located/membershipkey\nreplication:\n replSetName: myReplicaSet\nnet:\n bindIp: localhost,mongodb0.example.net\n port: 27017\nsystemLog:\n destination: file\n path: \"/var/log/mongodb/mongod.log\"\n logAppend: true\nstorage:\n dbPath: \"/var/lib/mongodb\"\nprocessManagement:\n fork: true","programmingLanguage":"YAML"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light yaml leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">net:</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">tls:</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">mode:</span> <span class="lg-highlight-string">allowTLS</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">certificateKeyFile:</span> <span class="lg-highlight-string">/etc/ssl/mongodb.pem</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">clusterFile:</span> <span class="lg-highlight-string">"/etc/ssl/myReplMembershipCertificateKeyFile.pem"</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">CAFile:</span> <span class="lg-highlight-string">/etc/ssl/caToValidateReceivedCertificates.pem</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">security:</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">clusterAuthMode:</span> <span class="lg-highlight-string">sendKeyFile</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">keyFile:</span> <span class="lg-highlight-string">/my/securely/located/membershipkey</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">replication:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">replSetName:</span> <span class="lg-highlight-string">myReplicaSet</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">net:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">bindIp:</span> <span class="lg-highlight-string">localhost,mongodb0.example.net</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">port:</span> <span class="lg-highlight-number">27017</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">systemLog:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">destination:</span> <span class="lg-highlight-string">file</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">path:</span> <span class="lg-highlight-string">"/var/log/mongodb/mongod.log"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">logAppend:</span> <span class="lg-highlight-literal">true</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">storage:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">dbPath:</span> <span class="lg-highlight-string">"/var/lib/mongodb"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">processManagement:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">fork:</span> <span class="lg-highlight-literal">true</span></td></tr></tbody></table></code></pre>
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</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Upgrade all nodes of the cluster to include
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-net.tls.mode">
<code class="leafygreen-ui-1l06pbn">
net.tls.mode
</code>
</a>
,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-net.tls.certificateKeyFile">
<code class="leafygreen-ui-1l06pbn">
net.tls.certificateKeyFile
</code>
</a>
,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-net.tls.clusterFile">
<code class="leafygreen-ui-1l06pbn">
net.tls.clusterFile
</code>
</a>
, and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-security.clusterAuthMode">
<code class="leafygreen-ui-1l06pbn">
security.clusterAuthMode
</code>
.
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Connect to each node and use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/setParameter/#mongodb-dbcommand-dbcmd.setParameter">
<code class="leafygreen-ui-1l06pbn">
setParameter
</code>
</a>
command
<a class="footnote-reference header-buffer" href="#footnote-update-mode-alternative" id="ref-update-mode-alternative-id3">
[
<!-- -->
1
<!-- -->
]
</a>
to:
</p>
<ol class="leafygreen-ui-rioki0" type="a">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Update the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/parameters/#mongodb-parameter-param.tlsMode">
<code class="leafygreen-ui-1l06pbn">
tlsMode
</code>
</a>
to
<code class="leafygreen-ui-1l06pbn">
preferSSL
</code>
. With the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/parameters/#mongodb-parameter-param.tlsMode">
<code class="leafygreen-ui-1l06pbn">
tlsMode
</code>
</a>
set to
<code class="leafygreen-ui-1l06pbn">
preferTLS
</code>
, the node accepts both TLS/SSL and non-TLS/non-SSL
incoming connections, and its outgoing connections use TLS/SSL.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Update the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/parameters/#mongodb-parameter-param.clusterAuthMode">
<code class="leafygreen-ui-1l06pbn">
clusterAuthMode
</code>
</a>
to
<code class="leafygreen-ui-1l06pbn">
sendX509
</code>
.
With the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/parameters/#mongodb-parameter-param.clusterAuthMode">
<code class="leafygreen-ui-1l06pbn">
clusterAuthMode
</code>
</a>
set to
<code class="leafygreen-ui-1l06pbn">
sendX509
</code>
, each
node sends its
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-net.tls.clusterFile">
<code class="leafygreen-ui-1l06pbn">
net.tls.clusterFile
</code>
</a>
to authenticate
itself as a member. However, each node continues to accept either
a keyfile or an x.509 certificate from other members to
authenticate those members.
</p>
</li>
</ol>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand( { setParameter: 1, tlsMode: \"preferTLS\" } );\ndb.adminCommand( { setParameter: 1, clusterAuthMode: \"sendX509\" } );","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.adminCommand( { setParameter: 1, tlsMode: <span class="lg-highlight-string">"preferTLS"</span> } );</td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.adminCommand( { setParameter: 1, clusterAuthMode: <span class="lg-highlight-string">"sendX509"</span> } );</td></tr></tbody></table></code></pre>
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</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Upgrade all nodes of the cluster to these settings before continuing.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
After the upgrade of all nodes, edit the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/">
configuration file
</a>
with the appropriate TLS/SSL and
x.509 settings to ensure that upon subsequent restarts, the cluster
uses x.509 authentication.
</p>
<script class="structured_data" type="application/ld+json">
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</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light yaml leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">net:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">tls:</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">mode:</span> <span class="lg-highlight-string">preferTLS</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">certificateKeyFile:</span> <span class="lg-highlight-string">/etc/ssl/mongodb.pem</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">clusterFile:</span> <span class="lg-highlight-string">"/etc/ssl/myReplMembershipCertificateKeyFile.pem"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">CAFile:</span> <span class="lg-highlight-string">/etc/ssl/caToValidateReceivedCertificates.pem</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">security:</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">clusterAuthMode:</span> <span class="lg-highlight-string">sendX509</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">replication:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">replSetName:</span> <span class="lg-highlight-string">myReplicaSet</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">net:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">bindIp:</span> <span class="lg-highlight-string">localhost,mongodb0.example.net</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">port:</span> <span class="lg-highlight-number">27017</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">systemLog:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">destination:</span> <span class="lg-highlight-string">file</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">path:</span> <span class="lg-highlight-string">"/var/log/mongodb/mongod.log"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">logAppend:</span> <span class="lg-highlight-literal">true</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">storage:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">dbPath:</span> <span class="lg-highlight-string">"/var/lib/mongodb"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">processManagement:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">fork:</span> <span class="lg-highlight-literal">true</span></td></tr></tbody></table></code></pre>
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</div>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
At this point,
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The nodes in the cluster use TLS/SSL connections. However, the
nodes can accept non-TLS/SSL connections from client
applications.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The nodes send their x.509 certificates for membership
authentication, but can accept either x.509 certificates or
keyfiles from other nodes to verify the other nodes' membership.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
To enforce TLS/SSL connections from client applications as well
as only accept x.509 for membership authentication, see next step.
</p>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<em>
Optional but recommended.
</em>
Update all nodes to use only
<code class="leafygreen-ui-1l06pbn">
TLS/SSL
</code>
connections and only x.509 certificate for membership authentication.
</p>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
This TLS/SSL connection requirement applies to all connections;
that is, with the clients as well as with the members of the
cluster. That is, clients must specify TLS/SSL connections and
presents its certificate key file when connecting to the cluster.
See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/configure-ssl-clients/#std-label-mongo-connect-require-client-certificates-tls">
Connect to MongoDB Instances that Require Client Certificates
</a>
for more
information on connecting with TLS/SSL. See also
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/configure-ssl/#std-label-ssl-mongod-weak-certification">
Validate Only if a Client Presents a Certificate
<!-- -->
.
</a>
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Update the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-net.tls.mode">
<code class="leafygreen-ui-1l06pbn">
net.tls.mode
</code>
</a>
to
<code class="leafygreen-ui-1l06pbn">
requireTLS
</code>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-security.clusterAuthMode">
<code class="leafygreen-ui-1l06pbn">
security.clusterAuthMode
</code>
</a>
to
<code class="leafygreen-ui-1l06pbn">
x509
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"net:\n tls:\n mode: requireTLS\n certificateKeyFile: /etc/ssl/mongodb.pem\n clusterFile: \"/etc/ssl/myReplMembershipCertificateKeyFile.pem\"\n CAFile: /etc/ssl/caToValidateReceivedCertificates.pem\nsecurity:\n clusterAuthMode: x509\nreplication:\n replSetName: myReplicaSet\nnet:\n bindIp: localhost,mongodb0.example.net\n port: 27017\nsystemLog:\n destination: file\n path: \"/var/log/mongodb/mongod.log\"\n logAppend: true\nstorage:\n dbPath: \"/var/lib/mongodb\"\nprocessManagement:\n fork: true","programmingLanguage":"YAML"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light yaml leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">net:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">tls:</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">mode:</span> <span class="lg-highlight-string">requireTLS</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">certificateKeyFile:</span> <span class="lg-highlight-string">/etc/ssl/mongodb.pem</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">clusterFile:</span> <span class="lg-highlight-string">"/etc/ssl/myReplMembershipCertificateKeyFile.pem"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">CAFile:</span> <span class="lg-highlight-string">/etc/ssl/caToValidateReceivedCertificates.pem</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">security:</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">clusterAuthMode:</span> <span class="lg-highlight-string">x509</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">replication:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">replSetName:</span> <span class="lg-highlight-string">myReplicaSet</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">net:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">bindIp:</span> <span class="lg-highlight-string">localhost,mongodb0.example.net</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">port:</span> <span class="lg-highlight-number">27017</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">systemLog:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">destination:</span> <span class="lg-highlight-string">file</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">path:</span> <span class="lg-highlight-string">"/var/log/mongodb/mongod.log"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">logAppend:</span> <span class="lg-highlight-literal">true</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">storage:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">dbPath:</span> <span class="lg-highlight-string">"/var/lib/mongodb"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">processManagement:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">fork:</span> <span class="lg-highlight-literal">true</span></td></tr></tbody></table></code></pre>
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</ol>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
You can also configure
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
using command-line options instead of the
configuration file:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
, see:
-
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#std-option-mongod.--tlsMode">
<code class="leafygreen-ui-1l06pbn">
--tlsMode
</code>
</a>
-
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#std-option-mongod.--tlsCertificateKeyFile">
<code class="leafygreen-ui-1l06pbn">
--tlsCertificateKeyFile
</code>
</a>
-
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#std-option-mongod.--tlsCAFile">
<code class="leafygreen-ui-1l06pbn">
--tlsCAFile
</code>
</a>
-
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#std-option-mongod.--tlsClusterFile">
<code class="leafygreen-ui-1l06pbn">
--tlsClusterFile
</code>
</a>
-
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#std-option-mongod.--clusterAuthMode">
<code class="leafygreen-ui-1l06pbn">
--clusterAuthMode
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
, see:
-
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#std-option-mongos.--tlsMode">
<code class="leafygreen-ui-1l06pbn">
--tlsMode
</code>
</a>
-
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#std-option-mongos.--tlsCertificateKeyFile">
<code class="leafygreen-ui-1l06pbn">
--tlsCertificateKeyFile
</code>
</a>
-
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#std-option-mongos.--tlsCAFile">
<code class="leafygreen-ui-1l06pbn">
--tlsCAFile
</code>
</a>
-
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#std-option-mongos.--tlsClusterFile">
<code class="leafygreen-ui-1l06pbn">
--tlsClusterFile
</code>
</a>
-
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#std-option-mongos.--clusterAuthMode">
<code class="leafygreen-ui-1l06pbn">
--clusterAuthMode
</code>
</a>
</p>
</li>
</ul>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-upgrade-to-x509-ssl">
</span>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Upgrade Procedures (Using
<code class="leafygreen-ui-1l06pbn">
ssl
</code>
Options)
<a class="headerlink leafygreen-ui-1kepx47" href="#upgrade-procedures--using-ssl-options-" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="upgrade-procedures--using-ssl-options-">
</div>
</a>
</h2>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
MongoDB provides
<code class="leafygreen-ui-1l06pbn">
net.tls
</code>
settings (and
<code class="leafygreen-ui-1l06pbn">
--tls
</code>
command-line options) that
correspond to the
<code class="leafygreen-ui-1l06pbn">
net.ssl
</code>
settings (and
<code class="leafygreen-ui-1l06pbn">
--ssl
</code>
command-line options).
The new
<code class="leafygreen-ui-1l06pbn">
tls
</code>
settings provide
<strong>
identical
</strong>
functionality as the
<code class="leafygreen-ui-1l06pbn">
ssl
</code>
settings since MongoDB has always supported TLS 1.0 and later.
</p>
<p class="leafygreen-ui-1kp3ins">
The procedures in this section use the
<code class="leafygreen-ui-1l06pbn">
ssl
</code>
options. For
procedures using the
<code class="leafygreen-ui-1l06pbn">
tls
</code>
options, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-upgrade-to-x509-tls" target="_self">
<span>
Upgrade Procedures (Using
<code class="leafygreen-ui-1l06pbn">
tls
</code>
Options)
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-upgrade-sslkeyfile-to-x509-ssl">
</span>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Clusters Currently Using TLS/SSL (Using
<code class="leafygreen-ui-1l06pbn">
ssl
</code>
Options)
<a class="headerlink leafygreen-ui-1kepx47" href="#clusters-currently-using-tls-ssl--using-ssl-options-" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="clusters-currently-using-tls-ssl--using-ssl-options-">
</div>
</a>
</h3>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
The procedure uses the
<code class="leafygreen-ui-1l06pbn">
ssl
</code>
options. For procedures using the
<code class="leafygreen-ui-1l06pbn">
tls
</code>
options, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-upgrade-sslkeyfile-to-x509-ssl" target="_self">
<span>
Clusters Currently Using TLS/SSL (Using
<code class="leafygreen-ui-1l06pbn">
ssl
</code>
Options)
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
For clusters using TLS/SSL and keyfile authentication, to upgrade to x.509
cluster authentication, use the following rolling upgrade process:
</p>
<ol class="leafygreen-ui-rioki0" type="1">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For each node of a cluster, start the node with the option
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#std-option-mongod.--clusterAuthMode">
<code class="leafygreen-ui-1l06pbn">
--clusterAuthMode
</code>
</a>
set to
<code class="leafygreen-ui-1l06pbn">
sendKeyFile
</code>
and the option
<code class="leafygreen-ui-1l06pbn">
--sslClusterFile
</code>
set to the appropriate path of the node's
certificate. Include other
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/configure-ssl/">
TLS/SSL options
</a>
as well as any other options that are
required for your specific configuration. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"mongod --replSet <name> --sslMode requireSSL --clusterAuthMode sendKeyFile --sslClusterFile <path> --sslPEMKeyFile <path> --sslCAFile <path> --bind_ip localhost,<hostname(s)|ip>","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">mongod --replSet <name> --sslMode requireSSL --clusterAuthMode sendKeyFile --sslClusterFile <path to membership certificate and key PEM file> --sslPEMKeyFile <path to TLS/SSL Certificate and key PEM file> --sslCAFile <path to root CA PEM file> --bind_ip localhost,<hostname(s)|ip address(es)></td></tr></tbody></table></code></pre>
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<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
With this setting, each node continues to use its keyfile to
authenticate itself as a member. However, each node can now accept
either a keyfile or an x.509 certificate from other members to
authenticate those members. Upgrade all nodes of the cluster to
this setting.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Then, for each node of a cluster, connect to the node and use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/setParameter/#mongodb-dbcommand-dbcmd.setParameter">
<code class="leafygreen-ui-1l06pbn">
setParameter
</code>
</a>
command to update the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/parameters/#mongodb-parameter-param.clusterAuthMode">
<code class="leafygreen-ui-1l06pbn">
clusterAuthMode
</code>
</a>
to
<code class="leafygreen-ui-1l06pbn">
sendX509
</code>
.
<a class="footnote-reference header-buffer" href="#footnote-update-mode-alternative" id="ref-update-mode-alternative-id4">
[
<!-- -->
1
<!-- -->
]
</a>
For example,
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand( { setParameter: 1, clusterAuthMode: \"sendX509\" } )","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.adminCommand( { setParameter: 1, clusterAuthMode: <span class="lg-highlight-string">"sendX509"</span> } )</td></tr></tbody></table></code></pre>
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
With this setting, each node uses its x.509 certificate, specified
with the
<code class="leafygreen-ui-1l06pbn">
--sslClusterFile
</code>
option in the previous step, to
authenticate itself as a member. However, each node continues to
accept either a keyfile or an x.509 certificate from other members
to authenticate those members. Upgrade all nodes of the cluster to
this setting.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Optional but recommended. Finally, for each node of the cluster,
connect to the node and use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/setParameter/#mongodb-dbcommand-dbcmd.setParameter">
<code class="leafygreen-ui-1l06pbn">
setParameter
</code>
</a>
command to
update the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/parameters/#mongodb-parameter-param.clusterAuthMode">
<code class="leafygreen-ui-1l06pbn">
clusterAuthMode
</code>
</a>
to
<code class="leafygreen-ui-1l06pbn">
x509
</code>
to only use the
x.509 certificate for authentication.
<a class="footnote-reference header-buffer" href="#footnote-update-mode-alternative" id="ref-update-mode-alternative-id5">
[
<!-- -->
1
<!-- -->
]
</a>
For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand( { setParameter: 1, clusterAuthMode: \"x509\" } )","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.adminCommand( { setParameter: 1, clusterAuthMode: <span class="lg-highlight-string">"x509"</span> } )</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
After the upgrade of all nodes, edit the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/">
configuration file
</a>
with the appropriate x.509
settings to ensure that upon subsequent restarts, the cluster uses
x.509 authentication.
</p>
</li>
</ol>
<p class="leafygreen-ui-1kp3ins">
See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#std-option-mongod.--clusterAuthMode">
<code class="leafygreen-ui-1l06pbn">
--clusterAuthMode
</code>
</a>
for the various modes and their
descriptions.
</p>
<span class="leafygreen-ui-1qnjd6d" id="std-label-upgrade-keyfile-to-x509-ssl">
</span>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Clusters Currently Not Using TLS/SSL (Using
<code class="leafygreen-ui-1l06pbn">
ssl
</code>
Options)
<a class="headerlink leafygreen-ui-1kepx47" href="#clusters-currently-not-using-tls-ssl---using-ssl-options-" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="clusters-currently-not-using-tls-ssl---using-ssl-options-">
</div>
</a>
</h3>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
The procedure uses the
<code class="leafygreen-ui-1l06pbn">
ssl
</code>
options. For procedures using the
<code class="leafygreen-ui-1l06pbn">
tls
</code>
options, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-upgrade-keyfile-to-x509-tls" target="_self">
<span>
Update (Using
<code class="leafygreen-ui-1l06pbn">
tls
</code>
Options) Clusters Using Keyfile but Not TLS/SSL
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
For clusters using keyfile authentication but not TLS/SSL, to upgrade to
x.509 authentication, use the following rolling upgrade process:
</p>
<ol class="leafygreen-ui-rioki0" type="1">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For each node of a cluster, start the node with the option
<code class="leafygreen-ui-1l06pbn">
--sslMode
</code>
set to
<code class="leafygreen-ui-1l06pbn">
allowSSL
</code>
, the option
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#std-option-mongod.--clusterAuthMode">
<code class="leafygreen-ui-1l06pbn">
--clusterAuthMode
</code>
</a>
set to
<code class="leafygreen-ui-1l06pbn">
sendKeyFile
</code>
and the option
<code class="leafygreen-ui-1l06pbn">
--sslClusterFile
</code>
set to the appropriate path of the node's
certificate. Include other
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/configure-ssl/">
TLS/SSL options
</a>
as well as any other options that are
required for your specific configuration. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"mongod --replSet <name> --sslMode allowSSL --clusterAuthMode sendKeyFile --sslClusterFile <path> --sslPEMKeyFile <path> --sslCAFile <path> --bind_ip localhost,<hostname(s)|ip>","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">mongod --replSet <name> --sslMode allowSSL --clusterAuthMode sendKeyFile --sslClusterFile <path to membership certificate and key PEM file> --sslPEMKeyFile <path to TLS/SSL certificate and key PEM file> --sslCAFile <path to root CA PEM file> --bind_ip localhost,<hostname(s)|ip address(es)></td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
--sslMode allowSSL
</code>
setting allows the node to accept both TLS/SSL
and non-TLS/non-SSL incoming connections. The node's outgoing connections do
not use TLS/SSL.
</p>
<p class="leafygreen-ui-1kp3ins">
The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#std-option-mongod.--clusterAuthMode">
<code class="leafygreen-ui-1l06pbn">
--clusterAuthMode sendKeyFile
</code>
</a>
setting allows each node continues to use its keyfile to
authenticate itself as a member. However, each node can now accept
either a keyfile or an x.509 certificate from other members to
authenticate those members.
</p>
<p class="leafygreen-ui-1kp3ins">
Upgrade all nodes of the cluster to these settings.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Then, for each node of a cluster, connect to the node and use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/setParameter/#mongodb-dbcommand-dbcmd.setParameter">
<code class="leafygreen-ui-1l06pbn">
setParameter
</code>
</a>
command to update the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/parameters/#mongodb-parameter-param.sslMode">
<code class="leafygreen-ui-1l06pbn">
sslMode
</code>
</a>
to
<code class="leafygreen-ui-1l06pbn">
preferSSL
</code>
and the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/parameters/#mongodb-parameter-param.clusterAuthMode">
<code class="leafygreen-ui-1l06pbn">
clusterAuthMode
</code>
</a>
to
<code class="leafygreen-ui-1l06pbn">
sendX509
</code>
.
<a class="footnote-reference header-buffer" href="#footnote-update-mode-alternative" id="ref-update-mode-alternative-id6">
[
<!-- -->
1
<!-- -->
]
</a>
For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand( { setParameter: 1, sslMode: \"preferSSL\", clusterAuthMode: \"sendX509\" } )","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.adminCommand( { setParameter: 1, sslMode: <span class="lg-highlight-string">"preferSSL"</span>, clusterAuthMode: <span class="lg-highlight-string">"sendX509"</span> } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
With the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/parameters/#mongodb-parameter-param.sslMode">
<code class="leafygreen-ui-1l06pbn">
sslMode
</code>
</a>
set to
<code class="leafygreen-ui-1l06pbn">
preferSSL
</code>
, the node accepts
both TLS/SSL and non-TLS/non-SSL incoming connections, and its outgoing
connections use TLS/SSL.
</p>
<p class="leafygreen-ui-1kp3ins">
With the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/parameters/#mongodb-parameter-param.clusterAuthMode">
<code class="leafygreen-ui-1l06pbn">
clusterAuthMode
</code>
</a>
set to
<code class="leafygreen-ui-1l06pbn">
sendX509
</code>
, each node
uses its x.509 certificate, specified with the
<code class="leafygreen-ui-1l06pbn">
--sslClusterFile
</code>
option in the previous step, to
authenticate itself as a member. However, each node continues to
accept either a keyfile or an x.509 certificate from other members
to authenticate those members.
</p>
<p class="leafygreen-ui-1kp3ins">
Upgrade all nodes of the cluster to these settings.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Optional but recommended. Finally, for each node of the cluster,
connect to the node and use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/setParameter/#mongodb-dbcommand-dbcmd.setParameter">
<code class="leafygreen-ui-1l06pbn">
setParameter
</code>
</a>
command to
update the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/parameters/#mongodb-parameter-param.sslMode">
<code class="leafygreen-ui-1l06pbn">
sslMode
</code>
</a>
to
<code class="leafygreen-ui-1l06pbn">
requireSSL
</code>
and the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/parameters/#mongodb-parameter-param.clusterAuthMode">
<code class="leafygreen-ui-1l06pbn">
clusterAuthMode
</code>
</a>
to
<code class="leafygreen-ui-1l06pbn">
x509
</code>
.
<a class="footnote-reference header-buffer" href="#footnote-update-mode-alternative" id="ref-update-mode-alternative-id7">
[
<!-- -->
1
<!-- -->
]
</a>
For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand( { setParameter: 1, sslMode: \"requireSSL\", clusterAuthMode: \"x509\" } )","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.adminCommand( { setParameter: 1, sslMode: <span class="lg-highlight-string">"requireSSL"</span>, clusterAuthMode: <span class="lg-highlight-string">"x509"</span> } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
With the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/parameters/#mongodb-parameter-param.sslMode">
<code class="leafygreen-ui-1l06pbn">
sslMode
</code>
</a>
set to
<code class="leafygreen-ui-1l06pbn">
requireSSL
</code>
, the node only uses
TLS/SSLs connections.
</p>
<p class="leafygreen-ui-1kp3ins">
With the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/parameters/#mongodb-parameter-param.clusterAuthMode">
<code class="leafygreen-ui-1l06pbn">
clusterAuthMode
</code>
</a>
set to
<code class="leafygreen-ui-1l06pbn">
x509
</code>
, the node only
uses the x.509 certificate for authentication.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
After the upgrade of all nodes, edit the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/">
configuration file
</a>
with the appropriate TLS/SSL and
x.509 settings to ensure that upon subsequent restarts, the cluster
uses x.509 authentication.
</p>
</li>
</ol>
<p class="leafygreen-ui-1kp3ins">
See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#std-option-mongod.--clusterAuthMode">
<code class="leafygreen-ui-1l06pbn">
--clusterAuthMode
</code>
</a>
for the various modes and their
descriptions.
</p>
<table class="header-buffer leafygreen-ui-rbqgrl" frame="void" id="footnote-update-mode-alternative" rules="none">
<colgroup>
<col/>
</colgroup>
<tbody valign="top">
<tr>
<td class="leafygreen-ui-17r2xs0">
[
<!-- -->
1
<!-- -->
]
</td>
<td class="leafygreen-ui-17r2xs0">
<em>
(
<a href="#ref-update-mode-alternative-id1">
1
</a>
,
<a href="#ref-update-mode-alternative-id2">
2
</a>
,
<a href="#ref-update-mode-alternative-id3">
3
</a>
,
<a href="#ref-update-mode-alternative-id4">
4
</a>
,
<a href="#ref-update-mode-alternative-id5">
5
</a>
,
<a href="#ref-update-mode-alternative-id6">
6
</a>
,
<a href="#ref-update-mode-alternative-id7">
7
</a>
)
</em>
<!-- -->
As an alternative to using the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/setParameter/#mongodb-dbcommand-dbcmd.setParameter">
<code class="leafygreen-ui-1l06pbn">
setParameter
</code>
</a>
command, you can also
restart the nodes with the appropriate TLS/SSL and x509 options and
values.
</td>
</tr>
</tbody>
</table>
</section>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/command/nav-replication/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Replication Commands
<a class="headerlink leafygreen-ui-1kepx47" href="#replication-commands" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="replication-commands">
</div>
</a>
</h1>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
For details on a specific command, including syntax and examples,
click on the link to the command's reference page.
</p>
</div>
</div>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:30%"/>
<col style="width:70%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Name
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/appendOplogNote/#mongodb-dbcommand-dbcmd.appendOplogNote">
<code class="leafygreen-ui-1l06pbn">
appendOplogNote
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Writes a non-operational entry to the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-oplog">
oplog
<!-- -->
.
</a>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/applyOps/#mongodb-dbcommand-dbcmd.applyOps">
<code class="leafygreen-ui-1l06pbn">
applyOps
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Internal command that applies
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-oplog">
oplog
</a>
entries to the current data set.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/hello/#mongodb-dbcommand-dbcmd.hello">
<code class="leafygreen-ui-1l06pbn">
hello
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Displays information about this member's role in the replica set, including whether it is the primary.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/replSetAbortPrimaryCatchUp/#mongodb-dbcommand-dbcmd.replSetAbortPrimaryCatchUp">
<code class="leafygreen-ui-1l06pbn">
replSetAbortPrimaryCatchUp
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Forces the elected
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-primary">
primary
</a>
to abort sync (catch up) then complete the transition to primary.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/replSetFreeze/#mongodb-dbcommand-dbcmd.replSetFreeze">
<code class="leafygreen-ui-1l06pbn">
replSetFreeze
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Prevents the current member from seeking election as
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-primary">
primary
</a>
for a period of time.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/replSetGetConfig/#mongodb-dbcommand-dbcmd.replSetGetConfig">
<code class="leafygreen-ui-1l06pbn">
replSetGetConfig
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Returns the replica set's configuration object.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/replSetGetStatus/#mongodb-dbcommand-dbcmd.replSetGetStatus">
<code class="leafygreen-ui-1l06pbn">
replSetGetStatus
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Returns a document that reports on the status of the replica set.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/replSetInitiate/#mongodb-dbcommand-dbcmd.replSetInitiate">
<code class="leafygreen-ui-1l06pbn">
replSetInitiate
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Initializes a new replica set.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/replSetMaintenance/#mongodb-dbcommand-dbcmd.replSetMaintenance">
<code class="leafygreen-ui-1l06pbn">
replSetMaintenance
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Enables or disables a maintenance mode, which puts a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-secondary">
secondary
</a>
node in a
<code class="leafygreen-ui-1l06pbn">
RECOVERING
</code>
state.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/replSetReconfig/#mongodb-dbcommand-dbcmd.replSetReconfig">
<code class="leafygreen-ui-1l06pbn">
replSetReconfig
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Applies a new configuration to an existing replica set.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/replSetResizeOplog/#mongodb-dbcommand-dbcmd.replSetResizeOplog">
<code class="leafygreen-ui-1l06pbn">
replSetResizeOplog
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Dynamically resizes the oplog for a replica set member. Available for WiredTiger storage engine only.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/replSetStepDown/#mongodb-dbcommand-dbcmd.replSetStepDown">
<code class="leafygreen-ui-1l06pbn">
replSetStepDown
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Forces the current
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-primary">
primary
</a>
to
<em>
step down
</em>
and become a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-secondary">
secondary
</a>
, forcing an election.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/replSetSyncFrom/#mongodb-dbcommand-dbcmd.replSetSyncFrom">
<code class="leafygreen-ui-1l06pbn">
replSetSyncFrom
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Explicitly override the default logic for selecting a member to replicate from.
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</section>
|
https://www.mongodb.com/docs/manual/reference/operator/update/set/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
$set
<a class="headerlink leafygreen-ui-1kepx47" href="#-set" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="-set">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#definition" target="_self">
<span>
Definition
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#compatibility" target="_self">
<span>
Compatibility
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#syntax" target="_self">
<span>
Syntax
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#behavior" target="_self">
<span>
Behavior
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#examples" target="_self">
<span>
Examples
</span>
</a>
</li>
</ul>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Definition
<a class="headerlink leafygreen-ui-1kepx47" href="#definition" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="definition">
</div>
</a>
</h2>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
Disambiguation
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
The following page refers to the update operator
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-update-up.-set" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$set
</code>
</span>
</a>
.
For the aggregation stage, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/set/#mongodb-pipeline-pipe.-set">
<code class="leafygreen-ui-1l06pbn">
$set
</code>
.
</a>
</p>
</div>
</div>
<dl class="update">
<dt>
<code class="leafygreen-ui-1l06pbn">
$set
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-update-up.-set" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-update-up.-set">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-update-up.-set" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$set
</code>
</span>
</a>
operator replaces the value of a field with the
specified value.
</p>
</dd>
</dl>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Compatibility
<a class="headerlink leafygreen-ui-1kepx47" href="#compatibility" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="compatibility">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
You can use
<code class="leafygreen-ui-1l06pbn">
$set
</code>
for deployments hosted in the following
environments:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas?tck=docs_server" target="_self">
<span>
MongoDB Atlas
</span>
</a>
: The fully
managed service for MongoDB deployments in the cloud
</p>
</li>
</ul>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/install-enterprise/#std-label-install-mdb-enterprise">
MongoDB Enterprise
</a>
: The
subscription-based, self-managed version of MongoDB
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/install-community/#std-label-install-mdb-community-edition">
MongoDB Community
</a>
: The
source-available, free-to-use, and self-managed version of MongoDB
</p>
</li>
</ul>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Syntax
<a class="headerlink leafygreen-ui-1kepx47" href="#syntax" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="syntax">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-update-up.-set" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$set
</code>
</span>
</a>
operator expression has the following form:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ $set: { <field1>: <value1>, ... } }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-attr">$set</span>: <!-- -->{ <<!-- -->field1<!-- -->><!-- -->: <<!-- -->value1<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> } }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To specify a
<code class="leafygreen-ui-1l06pbn">
<field>
</code>
in an embedded document or in an array, use
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-dot-notation">
dot notation
<!-- -->
.
</a>
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Behavior
<a class="headerlink leafygreen-ui-1kepx47" href="#behavior" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="behavior">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 5.0, update operators process document fields with
string-based names in lexicographic order. Fields with numeric names are
processed in numeric order. See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/update/#std-label-update-operators-processing-order">
Update Operators Behavior
</a>
for details.
</p>
<p class="leafygreen-ui-1kp3ins">
If the field does not exist,
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-update-up.-set" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$set
</code>
</span>
</a>
will add a new field with the
specified value, provided that the new field does not violate a type
constraint.
If you specify a dotted path for a non-existent field,
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-update-up.-set" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$set
</code>
</span>
</a>
will create the embedded documents
<em>
as needed
</em>
to
fulfill the dotted path to the field.
</p>
<p class="leafygreen-ui-1kp3ins">
If you specify multiple field-value pairs,
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-update-up.-set" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$set
</code>
</span>
</a>
will update
or create each field.
</p>
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 5.0,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
no longer raises an
error when you use an update operator like
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-update-up.-set" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$set
</code>
</span>
</a>
with an empty operand expression (
<code class="leafygreen-ui-1l06pbn">
{ }
</code>
). An empty update results
in no changes and no
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-oplog">
oplog
</a>
entry is created (meaning that the
operation is a no-op).
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Examples
<a class="headerlink leafygreen-ui-1kepx47" href="#examples" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="examples">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
Create the
<code class="leafygreen-ui-1l06pbn">
products
</code>
collection:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.products.insertOne(\n {\n _id: 100,\n quantity: 250,\n instock: true,\n reorder: false,\n details: { model: \"14QQ\", make: \"Clothes Corp\" },\n tags: [ \"apparel\", \"clothing\" ],\n ratings: [ { by: \"Customer007\", rating: 4 } ]\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">products</span>.<span class="lg-highlight-title lg-highlight-function">insertOne</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">100</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">quantity</span>: <span class="lg-highlight-number">250</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">instock</span>: <span class="lg-highlight-literal">true</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">reorder</span>: <span class="lg-highlight-literal">false</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">details</span>: <!-- -->{ <span class="lg-highlight-attr">model</span>: <span class="lg-highlight-string">"14QQ"</span>, <span class="lg-highlight-attr">make</span>: <span class="lg-highlight-string">"Clothes Corp"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">tags</span>: <!-- -->[ <span class="lg-highlight-string">"apparel"</span>, <span class="lg-highlight-string">"clothing"</span> ]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">ratings</span>: <!-- -->[ <!-- -->{ <span class="lg-highlight-attr">by</span>: <span class="lg-highlight-string">"Customer007"</span>, <span class="lg-highlight-attr">rating</span>: <span class="lg-highlight-number">4</span> } ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Set Top-Level Fields
<a class="headerlink leafygreen-ui-1kepx47" href="#set-top-level-fields" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="set-top-level-fields">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
For the document matching the criteria
<code class="leafygreen-ui-1l06pbn">
_id
</code>
equal to
<code class="leafygreen-ui-1l06pbn">
100
</code>
, the
following operation uses the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-update-up.-set" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$set
</code>
</span>
</a>
operator to update the
value of the
<code class="leafygreen-ui-1l06pbn">
quantity
</code>
field,
<code class="leafygreen-ui-1l06pbn">
details
</code>
field, and the
<code class="leafygreen-ui-1l06pbn">
tags
</code>
field.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.products.updateOne(\n { _id: 100 },\n { $set:\n {\n quantity: 500,\n details: { model: \"2600\", make: \"Fashionaires\" },\n tags: [ \"coats\", \"outerwear\", \"clothing\" ]\n }\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">products</span>.<span class="lg-highlight-title lg-highlight-function">updateOne</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">100</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">$set</span>:</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">quantity</span>: <span class="lg-highlight-number">500</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">details</span>: <!-- -->{ <span class="lg-highlight-attr">model</span>: <span class="lg-highlight-string">"2600"</span>, <span class="lg-highlight-attr">make</span>: <span class="lg-highlight-string">"Fashionaires"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">tags</span>: <!-- -->[ <span class="lg-highlight-string">"coats"</span>, <span class="lg-highlight-string">"outerwear"</span>, <span class="lg-highlight-string">"clothing"</span> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The operation updates the:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
value of
<code class="leafygreen-ui-1l06pbn">
quantity
</code>
to
<code class="leafygreen-ui-1l06pbn">
500
</code>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
details
</code>
field with new embedded document
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
tags
</code>
field with new array
</p>
</li>
</ul>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n _id: 100,\n quantity: 500,\n instock: true,\n reorder: false,\n details: { model: '2600', make: 'Fashionaires' },\n tags: [ 'coats', 'outerwear', 'clothing' ],\n ratings: [ { by: 'Customer007', rating: 4 } ]\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">100</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">quantity</span>: <span class="lg-highlight-number">500</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">instock</span>: <span class="lg-highlight-literal">true</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">reorder</span>: <span class="lg-highlight-literal">false</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">details</span>: <!-- -->{ <span class="lg-highlight-attr">model</span>: <span class="lg-highlight-string">'2600'</span>, <span class="lg-highlight-attr">make</span>: <span class="lg-highlight-string">'Fashionaires'</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">tags</span>: <!-- -->[ <span class="lg-highlight-string">'coats'</span>, <span class="lg-highlight-string">'outerwear'</span>, <span class="lg-highlight-string">'clothing'</span> ]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">ratings</span>: <!-- -->[ <!-- -->{ <span class="lg-highlight-attr">by</span>: <span class="lg-highlight-string">'Customer007'</span>, <span class="lg-highlight-attr">rating</span>: <span class="lg-highlight-number">4</span> } ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Set Fields in Embedded Documents
<a class="headerlink leafygreen-ui-1kepx47" href="#set-fields-in-embedded-documents" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="set-fields-in-embedded-documents">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
To specify a
<code class="leafygreen-ui-1l06pbn">
<field>
</code>
in an embedded document or in an array, use
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-dot-notation">
dot notation
<!-- -->
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
For the document matching the criteria
<code class="leafygreen-ui-1l06pbn">
_id
</code>
equal to
<code class="leafygreen-ui-1l06pbn">
100
</code>
, the
following operation updates the
<code class="leafygreen-ui-1l06pbn">
make
</code>
field in the
<code class="leafygreen-ui-1l06pbn">
details
</code>
document:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.products.updateOne(\n { _id: 100 },\n { $set: { \"details.make\": \"Kustom Kidz\" } }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">products</span>.<span class="lg-highlight-title lg-highlight-function">updateOne</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">100</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">$set</span>: <!-- -->{ <span class="lg-highlight-string">"details.make"</span>: <span class="lg-highlight-string">"Kustom Kidz"</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
After updating, the document has the following values:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n _id: 100,\n quantity: 500,\n instock: true,\n reorder: false,\n details: { model: '2600', make: 'Kustom Kidz' },\n tags: [ 'coats', 'outerwear', 'clothing' ],\n ratings: [ { by: 'Customer007', rating: 4 } ]\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">100</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">quantity</span>: <span class="lg-highlight-number">500</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">instock</span>: <span class="lg-highlight-literal">true</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">reorder</span>: <span class="lg-highlight-literal">false</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">details</span>: <!-- -->{ <span class="lg-highlight-attr">model</span>: <span class="lg-highlight-string">'2600'</span>, <span class="lg-highlight-attr">make</span>: <span class="lg-highlight-string">'Kustom Kidz'</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">tags</span>: <!-- -->[ <span class="lg-highlight-string">'coats'</span>, <span class="lg-highlight-string">'outerwear'</span>, <span class="lg-highlight-string">'clothing'</span> ]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">ratings</span>: <!-- -->[ <!-- -->{ <span class="lg-highlight-attr">by</span>: <span class="lg-highlight-string">'Customer007'</span>, <span class="lg-highlight-attr">rating</span>: <span class="lg-highlight-number">4</span> } ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
The above code uses
<code class="leafygreen-ui-1l06pbn">
dot notation
</code>
to update the
<code class="leafygreen-ui-1l06pbn">
make
</code>
field of the
embedded
<code class="leafygreen-ui-1l06pbn">
details
</code>
document. The code format looks similar to the following
code example, which instead
<em>
replaces the entire embedded document
</em>
, removing
all other fields in the embedded
<code class="leafygreen-ui-1l06pbn">
details
</code>
document:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.products.updateOne(\n { _id: 100 },\n { $set: { details:\n {make: \"Kustom Kidz\"}\n }\n })","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">products</span>.<span class="lg-highlight-title lg-highlight-function">updateOne</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">100</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">$set</span>: <!-- -->{ <span class="lg-highlight-attr">details</span>:</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{<span class="lg-highlight-attr">make</span>: <span class="lg-highlight-string">"Kustom Kidz"</span>}</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> })</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</div>
</div>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Set Elements in Arrays
<a class="headerlink leafygreen-ui-1kepx47" href="#set-elements-in-arrays" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="set-elements-in-arrays">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
To specify a
<code class="leafygreen-ui-1l06pbn">
<field>
</code>
in an embedded document or in an array, use
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/document/#std-label-document-dot-notation">
dot notation
<!-- -->
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
For the document matching the criteria
<code class="leafygreen-ui-1l06pbn">
_id
</code>
equal to
<code class="leafygreen-ui-1l06pbn">
100
</code>
, the
following operation updates the value second element (array index of
<code class="leafygreen-ui-1l06pbn">
1
</code>
) in the
<code class="leafygreen-ui-1l06pbn">
tags
</code>
field and the
<code class="leafygreen-ui-1l06pbn">
rating
</code>
field in the first
element (array index of
<code class="leafygreen-ui-1l06pbn">
0
</code>
) of the
<code class="leafygreen-ui-1l06pbn">
ratings
</code>
array.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.products.updateOne(\n { _id: 100 },\n { $set:\n {\n \"tags.1\": \"rain gear\",\n \"ratings.0.rating\": 2\n }\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">products</span>.<span class="lg-highlight-title lg-highlight-function">updateOne</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">100</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">$set</span>:</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"tags.1"</span>: <span class="lg-highlight-string">"rain gear"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"ratings.0.rating"</span>: <span class="lg-highlight-number">2</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
After updating, the document has the following values:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n _id: 100,\n quantity: 500,\n instock: true,\n reorder: false,\n details: { model: '2600', make: 'Kustom Kidz' },\n tags: [ 'coats', 'rain gear', 'clothing' ],\n ratings: [ { by: 'Customer007', rating: 2 } ]\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">100</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">quantity</span>: <span class="lg-highlight-number">500</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">instock</span>: <span class="lg-highlight-literal">true</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">reorder</span>: <span class="lg-highlight-literal">false</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">details</span>: <!-- -->{ <span class="lg-highlight-attr">model</span>: <span class="lg-highlight-string">'2600'</span>, <span class="lg-highlight-attr">make</span>: <span class="lg-highlight-string">'Kustom Kidz'</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">tags</span>: <!-- -->[ <span class="lg-highlight-string">'coats'</span>, <span class="lg-highlight-string">'rain gear'</span>, <span class="lg-highlight-string">'clothing'</span> ]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">ratings</span>: <!-- -->[ <!-- -->{ <span class="lg-highlight-attr">by</span>: <span class="lg-highlight-string">'Customer007'</span>, <span class="lg-highlight-attr">rating</span>: <span class="lg-highlight-number">2</span> } ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
For additional update operators for arrays, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/update-array/">
Array Update Operators
<!-- -->
.
</a>
</p>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.updateMany/#mongodb-method-db.collection.updateMany">
<code class="leafygreen-ui-1l06pbn">
db.collection.updateMany()
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.findAndModify/#mongodb-method-db.collection.findAndModify">
<code class="leafygreen-ui-1l06pbn">
db.collection.findAndModify()
</code>
</a>
</p>
</li>
</ul>
</div>
</div>
</section>
</section>
</section>
|
https://www.mongodb.com/docs/manual/core/replica-set-delayed-member/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Delayed Replica Set Members
<a class="headerlink leafygreen-ui-1kepx47" href="#delayed-replica-set-members" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="delayed-replica-set-members">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#considerations" target="_self">
<span>
Considerations
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#example" target="_self">
<span>
Example
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#configuration" target="_self">
<span>
Configuration
</span>
</a>
</li>
</ul>
</div>
<p class="leafygreen-ui-1kp3ins">
Delayed members contain copies of a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-replica-set">
replica set's
</a>
data set. However, a delayed member's data set reflects an
earlier, or delayed, state of the set. For example, if the current
time is 09:52 and a member has a delay of an hour, the delayed member
has no operation more recent than 08:52.
</p>
<p class="leafygreen-ui-1kp3ins">
Because delayed members are a "rolling backup" or a running
"historical" snapshot of the data set, they may help you recover from
various kinds of human error. For example, a delayed member can make
it possible to recover from unsuccessful application upgrades and
operator errors including dropped databases and collections.
</p>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Considerations
<a class="headerlink leafygreen-ui-1kepx47" href="#considerations" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="considerations">
</div>
</a>
</h2>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Requirements
<a class="headerlink leafygreen-ui-1kepx47" href="#requirements" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="requirements">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Delayed members:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<strong>
Must be
</strong>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/replica-set-priority-0-member/#std-label-replica-set-secondary-only-members">
priority 0
</a>
members. Set the priority to 0 to prevent a delayed member from
becoming primary.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<strong>
Must be
</strong>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/replica-set-hidden-member/#std-label-replica-set-hidden-members">
hidden
</a>
members. Always prevent applications from seeing and querying
delayed members.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<em>
Do
</em>
vote in
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-election">
elections
</a>
for primary, if
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-configuration/#mongodb-rsconf-rsconf.members-n-.votes">
<code class="leafygreen-ui-1l06pbn">
members[n].votes
</code>
</a>
is set to 1. Ensuring that delayed members
are non-voting by setting
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-configuration/#mongodb-rsconf-rsconf.members-n-.votes">
<code class="leafygreen-ui-1l06pbn">
members[n].votes
</code>
</a>
to 0 can help
improve performance.
</p>
</li>
</ul>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
If your replica set contains
<a aria-current="page" class="leafygreen-ui-tqgtui" href="/docs/manual/core/replica-set-delayed-member/">
delayed members
</a>
ensure that the delayed
members are hidden and non-voting.
</p>
<p class="leafygreen-ui-1kp3ins">
Hiding delayed replica set members prevents applications from seeing
and querying delayed data without a direct connection to that member.
Making delayed replica set members non-voting means they will not
count towards acknowledging write operations with write concern
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/write-concern/#mongodb-writeconcern-writeconcern.-majority-">
<code class="leafygreen-ui-1l06pbn">
"majority"
</code>
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
If you do not hide delayed members and one or more nodes
become unavailable, the replica set has to wait for the delayed
member and the commit point lags. A lagged commit point can lead to
performance issues.
</p>
<p class="leafygreen-ui-1kp3ins">
For example, consider a Primary-Secondary-Delayed replica set
configuration where the delayed secondary is voting with a 10
minute delay.
</p>
<p class="leafygreen-ui-1kp3ins">
With one non-delayed secondary unavailable, the degraded configuration
of Primary-Delayed must wait at least 10 minutes to acknowledge a write
operation with
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/write-concern/#mongodb-writeconcern-writeconcern.-majority-">
<code class="leafygreen-ui-1l06pbn">
"majority"
</code>
</a>
.The majority commit point
will take longer to advance, leading to cache pressure similar
performance issues with a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/replica-set-architecture-three-members/#std-label-rs-architecture-psa">
Primary with a Secondary and an Arbiter
</a>
(PSA) replica set.
</p>
<p class="leafygreen-ui-1kp3ins">
For more information on the majority commit point, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/causal-consistency-read-write-concerns/">
Causal Consistency and Read and Write Concerns
</a>
. For additional
details on resolving performance issues see the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/mitigate-psa-performance-issues/#std-label-performance-issues-psa">
replica set maintenance tutorial
<!-- -->
.
</a>
</p>
</div>
</div>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Behavior
<a class="headerlink leafygreen-ui-1kepx47" href="#behavior" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="behavior">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Delayed members copy and apply operations from the source
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-oplog">
oplog
</a>
on a delay.
When choosing the amount of delay, consider that the amount of delay:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
must be equal to or greater than your expected maintenance window durations.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
must be
<em>
smaller
</em>
than the capacity of the oplog. For more
information on oplog size, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/replica-set-oplog/#std-label-replica-set-oplog-sizing">
Oplog Size
<!-- -->
.
</a>
</p>
</li>
</ul>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Write Concern
<a class="headerlink leafygreen-ui-1kepx47" href="#write-concern" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="write-concern">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Delayed replica set members can acknowledge write operations issued
with
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/write-concern/#mongodb-writeconcern-writeconcern.-number-">
<code class="leafygreen-ui-1l06pbn">
w: <number>
</code>
</a>
. For write operations
issued with
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/write-concern/#mongodb-writeconcern-writeconcern.-majority-">
<code class="leafygreen-ui-1l06pbn">
w : "majority"
</code>
</a>
, however,
delayed members must also be voting members (i.e.
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-configuration/#mongodb-rsconf-rsconf.members-n-.votes">
<code class="leafygreen-ui-1l06pbn">
members[n].votes
</code>
</a>
greater than
<code class="leafygreen-ui-1l06pbn">
0
</code>
) to acknowledge the
<code class="leafygreen-ui-1l06pbn">
"majority"
</code>
write operation. Non-voting replica set members
(i.e.
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-configuration/#mongodb-rsconf-rsconf.members-n-.votes">
<code class="leafygreen-ui-1l06pbn">
members[n].votes
</code>
</a>
is
<code class="leafygreen-ui-1l06pbn">
0
</code>
) cannot contribute to
acknowledging write operations with
<code class="leafygreen-ui-1l06pbn">
majority
</code>
write concern.
</p>
<p class="leafygreen-ui-1kp3ins">
Delayed secondaries can return write acknowledgment no earlier than the
configured
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-configuration/#mongodb-rsconf-rsconf.members-n-.secondaryDelaySecs">
<code class="leafygreen-ui-1l06pbn">
secondaryDelaySecs
</code>
.
</a>
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Sharding
<a class="headerlink leafygreen-ui-1kepx47" href="#sharding" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="sharding">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
In sharded clusters, delayed members have limited utility when the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-balancer">
balancer
</a>
is enabled. Because delayed members replicate chunk
migrations with a delay, the state of delayed members in a sharded
cluster are not useful for recovering to a previous state of the
sharded cluster if any migrations occur during the delay window.
</p>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Example
<a class="headerlink leafygreen-ui-1kepx47" href="#example" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="example">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
In the following 5-member replica set, the primary and all secondaries
have copies of the data set. One member applies operations with a
delay of 3600 seconds (one hour). This delayed member is also
<em>
hidden
</em>
and is a
<em>
priority 0 member
</em>
.
</p>
<div class="figure css-5vkxs0" style="width:700px">
<img alt="Diagram of a 5 member replica set with a hidden delayed priority 0 member." class="leafygreen-ui-1qnf57e" height="260" src="/docs/manual/images/replica-set-delayed-member.bakedsvg.svg" style="--border-color:#C1C7C6" width="650"/>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Configuration
<a class="headerlink leafygreen-ui-1kepx47" href="#configuration" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="configuration">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
A delayed member has its
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-configuration/#mongodb-rsconf-rsconf.members-n-.priority">
<code class="leafygreen-ui-1l06pbn">
members[n].priority
</code>
</a>
equal to
<code class="leafygreen-ui-1l06pbn">
0
</code>
,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-configuration/#mongodb-rsconf-rsconf.members-n-.hidden">
<code class="leafygreen-ui-1l06pbn">
members[n].hidden
</code>
</a>
equal to
<code class="leafygreen-ui-1l06pbn">
true
</code>
, and
its
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-configuration/#mongodb-rsconf-rsconf.members-n-.secondaryDelaySecs">
<code class="leafygreen-ui-1l06pbn">
members[n].secondaryDelaySecs
</code>
</a>
equal to the
number of seconds of delay:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n \"_id\" : <num>,\n \"host\" : <hostname:port>,\n \"priority\" : 0,\n \"secondaryDelaySecs\" : <seconds>,\n \"hidden\" : true\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"_id"</span> <!-- -->: <<!-- -->num<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"host"</span> <!-- -->: <<span class="lg-highlight-attr">hostname</span>:<!-- -->port<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"priority"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"secondaryDelaySecs"</span> <!-- -->: <<!-- -->seconds<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"hidden"</span> <!-- -->: <span class="lg-highlight-literal">true</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To configure a delayed member, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/configure-a-delayed-replica-set-member/">
Configure a Delayed Self-Managed Replica Set Member
<!-- -->
.
</a>
</p>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/operator/aggregation/topN/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
$topN (aggregation accumulator)
<a class="headerlink leafygreen-ui-1kepx47" href="#-topn--aggregation-accumulator-" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="-topn--aggregation-accumulator-">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#definition" target="_self">
<span>
Definition
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#syntax" target="_self">
<span>
Syntax
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#behavior" target="_self">
<span>
Behavior
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#restrictions" target="_self">
<span>
Restrictions
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#examples" target="_self">
<span>
Examples
</span>
</a>
</li>
</ul>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Definition
<a class="headerlink leafygreen-ui-1kepx47" href="#definition" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="definition">
</div>
</a>
</h2>
<dl class="group">
<dt>
<code class="leafygreen-ui-1l06pbn">
$topN
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-group-grp.-topN" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-group-grp.-topN">
</div>
</a>
</dt>
<dd>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
5.2
</em>
.
</p>
</div>
<p class="leafygreen-ui-1kp3ins">
Returns an aggregation of the top
<code class="leafygreen-ui-1l06pbn">
n
</code>
elements within a group,
according to the specified sort order. If the group contains
fewer than
<code class="leafygreen-ui-1l06pbn">
n
</code>
elements,
<code class="leafygreen-ui-1l06pbn">
$topN
</code>
returns all elements in the group.
</p>
</dd>
</dl>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Syntax
<a class="headerlink leafygreen-ui-1kepx47" href="#syntax" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="syntax">
</div>
</a>
</h2>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n $topN:\n {\n n: <expression>,\n sortBy: { <field1>: <sort>, <field2>: <sort> ... },\n output: <expression>\n }\n}"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light none leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> $topN:</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> n: <expression>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> sortBy: { <field1>: <sort order>, <field2>: <sort order> ... },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> output: <expression></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
n
</code>
limits the number of results per group and has to be a positive
integral expression that is either a constant or depends on the
<code class="leafygreen-ui-1l06pbn">
_id
</code>
value for
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/group/#mongodb-pipeline-pipe.-group">
<code class="leafygreen-ui-1l06pbn">
$group
</code>
.
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
sortBy specifies the order of results, with syntax similar to
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/sort/#mongodb-pipeline-pipe.-sort">
<code class="leafygreen-ui-1l06pbn">
$sort
</code>
.
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
output
</code>
represents the output for each element in the group and can
be any expression.
</p>
</li>
</ul>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Behavior
<a class="headerlink leafygreen-ui-1kepx47" href="#behavior" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="behavior">
</div>
</a>
</h2>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Null and Missing Values
<a class="headerlink leafygreen-ui-1kepx47" href="#null-and-missing-values" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="null-and-missing-values">
</div>
</a>
</h3>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
$topN
</code>
does not filter out null values.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
$topN
</code>
converts missing values to null which are preserved in
the output.
</p>
</li>
</ul>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.aggregate( [\n {\n $documents: [\n { playerId: \"PlayerA\", gameId: \"G1\", score: 1 },\n { playerId: \"PlayerB\", gameId: \"G1\", score: 2 },\n { playerId: \"PlayerC\", gameId: \"G1\", score: 3 },\n { playerId: \"PlayerD\", gameId: \"G1\"},\n { playerId: \"PlayerE\", gameId: \"G1\", score: null }\n ]\n },\n {\n $group:\n {\n _id: \"$gameId\",\n playerId:\n {\n $topN:\n {\n output: [ \"$playerId\", \"$score\" ],\n sortBy: { \"score\": 1 },\n n: 3\n }\n }\n }\n }\n] )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">aggregate</span>( <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">$documents</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">playerId</span>: <span class="lg-highlight-string">"PlayerA"</span>, <span class="lg-highlight-attr">gameId</span>: <span class="lg-highlight-string">"G1"</span>, <span class="lg-highlight-attr">score</span>: <span class="lg-highlight-number">1</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">playerId</span>: <span class="lg-highlight-string">"PlayerB"</span>, <span class="lg-highlight-attr">gameId</span>: <span class="lg-highlight-string">"G1"</span>, <span class="lg-highlight-attr">score</span>: <span class="lg-highlight-number">2</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">playerId</span>: <span class="lg-highlight-string">"PlayerC"</span>, <span class="lg-highlight-attr">gameId</span>: <span class="lg-highlight-string">"G1"</span>, <span class="lg-highlight-attr">score</span>: <span class="lg-highlight-number">3</span> }<!-- -->,</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">playerId</span>: <span class="lg-highlight-string">"PlayerD"</span>, <span class="lg-highlight-attr">gameId</span>: <span class="lg-highlight-string">"G1"</span>}<!-- -->,</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">playerId</span>: <span class="lg-highlight-string">"PlayerE"</span>, <span class="lg-highlight-attr">gameId</span>: <span class="lg-highlight-string">"G1"</span>, <span class="lg-highlight-attr">score</span>: <span class="lg-highlight-literal">null</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">$group</span>:</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-string">"$gameId"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">playerId</span>:</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">$topN</span>:</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">output</span>: <!-- -->[ <span class="lg-highlight-string">"$playerId"</span>, <span class="lg-highlight-string">"$score"</span> ]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">sortBy</span>: <!-- -->{ <span class="lg-highlight-string">"score"</span>: <span class="lg-highlight-number">1</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">n</span>: <span class="lg-highlight-number">3</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">] )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
In this example:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/documents/#mongodb-pipeline-pipe.-documents">
<code class="leafygreen-ui-1l06pbn">
$documents
</code>
</a>
creates the literal documents that contain
player scores.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/group/#mongodb-pipeline-pipe.-group">
<code class="leafygreen-ui-1l06pbn">
$group
</code>
</a>
groups the documents by
<code class="leafygreen-ui-1l06pbn">
gameId
</code>
. This
example has only one
<code class="leafygreen-ui-1l06pbn">
gameId
</code>
,
<code class="leafygreen-ui-1l06pbn">
G1
</code>
.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
PlayerD
</code>
has a missing score and
<code class="leafygreen-ui-1l06pbn">
PlayerE
</code>
has a
null
<code class="leafygreen-ui-1l06pbn">
score
</code>
. These values are both considered as null.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
playerId
</code>
and
<code class="leafygreen-ui-1l06pbn">
score
</code>
fields are specified as
<code class="leafygreen-ui-1l06pbn">
output : ["$playerId"," $score"]
</code>
and returned as array values.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Because of the
<code class="leafygreen-ui-1l06pbn">
sortBy: { "score" : 1 }
</code>
, the null values are sorted
to the front of the returned
<code class="leafygreen-ui-1l06pbn">
playerId
</code>
array.
</p>
</li>
</ul>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"[\n {\n _id: 'G1',\n playerId: [ [ 'PlayerD', null ], [ 'PlayerE', null ], [ 'PlayerA', 1 ] ]\n }\n]","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-string">'G1'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">playerId</span>: <!-- -->[ <!-- -->[ <span class="lg-highlight-string">'PlayerD'</span>, <span class="lg-highlight-literal">null</span> ]<!-- -->, <!-- -->[ <span class="lg-highlight-string">'PlayerE'</span>, <span class="lg-highlight-literal">null</span> ]<!-- -->, <!-- -->[ <span class="lg-highlight-string">'PlayerA'</span>, <span class="lg-highlight-number">1</span> ] ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">]</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
BSON Data Type Sort Ordering
<a class="headerlink leafygreen-ui-1kepx47" href="#bson-data-type-sort-ordering" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="bson-data-type-sort-ordering">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
When sorting different types, the order of
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/sort/#std-label-bson_sort_order">
BSON data types
</a>
is used to determine ordering. As an example,
consider a collection whose values consist of strings and numbers.
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
In an ascending sort, string values are sorted after numeric values.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
In a descending sort, string values are sorted before numeric values.
</p>
</li>
</ul>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.aggregate( [\n {\n $documents: [\n { playerId: \"PlayerA\", gameId: \"G1\", score: 1 },\n { playerId: \"PlayerB\", gameId: \"G1\", score: \"2\" },\n { playerId: \"PlayerC\", gameId: \"G1\", score: \"\" }\n ]\n },\n {\n $group:\n {\n _id: \"$gameId\",\n playerId: {\n $topN:\n {\n output: [\"$playerId\",\"$score\"],\n sortBy: {\"score\": -1},\n n: 3\n }\n }\n }\n }\n] )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">aggregate</span>( <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">$documents</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">playerId</span>: <span class="lg-highlight-string">"PlayerA"</span>, <span class="lg-highlight-attr">gameId</span>: <span class="lg-highlight-string">"G1"</span>, <span class="lg-highlight-attr">score</span>: <span class="lg-highlight-number">1</span> }<!-- -->,</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">playerId</span>: <span class="lg-highlight-string">"PlayerB"</span>, <span class="lg-highlight-attr">gameId</span>: <span class="lg-highlight-string">"G1"</span>, <span class="lg-highlight-attr">score</span>: <span class="lg-highlight-string">"2"</span> }<!-- -->,</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">playerId</span>: <span class="lg-highlight-string">"PlayerC"</span>, <span class="lg-highlight-attr">gameId</span>: <span class="lg-highlight-string">"G1"</span>, <span class="lg-highlight-attr">score</span>: <span class="lg-highlight-string">""</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">$group</span>:</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-string">"$gameId"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">playerId</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">$topN</span>:</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">output</span>: <!-- -->[<span class="lg-highlight-string">"$playerId"</span>,<span class="lg-highlight-string">"$score"</span>]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">sortBy</span>: <!-- -->{<span class="lg-highlight-string">"score"</span>: <!-- -->-<span class="lg-highlight-number">1</span>}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">n</span>: <span class="lg-highlight-number">3</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">] )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
In this example:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
PlayerA
</code>
has an integer score.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
PlayerB
</code>
has a string
<code class="leafygreen-ui-1l06pbn">
"2"
</code>
score.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
PlayerC
</code>
has an empty string score.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
Because the sort is in descending
<code class="leafygreen-ui-1l06pbn">
{ "score" : -1 }
</code>
, the string
literal values are sorted before
<code class="leafygreen-ui-1l06pbn">
PlayerA
</code>
's numeric score:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"[\n {\n _id: \"G1\",\n playerId: [ [ \"PlayerB\", \"2\" ], [ \"PlayerC\", \"\" ], [ \"PlayerA\", 1 ] ]\n }\n]","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-string">"G1"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">playerId</span>: <!-- -->[ <!-- -->[ <span class="lg-highlight-string">"PlayerB"</span>, <span class="lg-highlight-string">"2"</span> ]<!-- -->, <!-- -->[ <span class="lg-highlight-string">"PlayerC"</span>, <span class="lg-highlight-string">""</span> ]<!-- -->, <!-- -->[ <span class="lg-highlight-string">"PlayerA"</span>, <span class="lg-highlight-number">1</span> ] ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">]</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Restrictions
<a class="headerlink leafygreen-ui-1kepx47" href="#restrictions" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="restrictions">
</div>
</a>
</h2>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Window Function and Aggregation Expression Support
<a class="headerlink leafygreen-ui-1kepx47" href="#window-function-and-aggregation-expression-support" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="window-function-and-aggregation-expression-support">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
$topN
</code>
is not supported as a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/#std-label-aggregation-expressions">
aggregation expression
<!-- -->
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
$topN
</code>
is supported as a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/setWindowFields/#mongodb-pipeline-pipe.-setWindowFields">
<code class="leafygreen-ui-1l06pbn">
window operator
</code>
.
</a>
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Memory Limit Considerations
<a class="headerlink leafygreen-ui-1kepx47" href="#memory-limit-considerations" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="memory-limit-considerations">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Groups within the
<code class="leafygreen-ui-1l06pbn">
$topN
</code>
aggregation pipeline are subject to the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/aggregation-pipeline-limits/#std-label-agg-memory-restrictions">
100 MB limit
</a>
pipeline limit. If this
limit is exceeded for an individual group, the aggregation fails
with an error.
</p>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Examples
<a class="headerlink leafygreen-ui-1kepx47" href="#examples" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="examples">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
Consider a
<code class="leafygreen-ui-1l06pbn">
gamescores
</code>
collection with the following documents:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.gamescores.insertMany([\n { playerId: \"PlayerA\", gameId: \"G1\", score: 31 },\n { playerId: \"PlayerB\", gameId: \"G1\", score: 33 },\n { playerId: \"PlayerC\", gameId: \"G1\", score: 99 },\n { playerId: \"PlayerD\", gameId: \"G1\", score: 1 },\n { playerId: \"PlayerA\", gameId: \"G2\", score: 10 },\n { playerId: \"PlayerB\", gameId: \"G2\", score: 14 },\n { playerId: \"PlayerC\", gameId: \"G2\", score: 66 },\n { playerId: \"PlayerD\", gameId: \"G2\", score: 80 }\n])","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">gamescores</span>.<span class="lg-highlight-title lg-highlight-function">insertMany</span>(<!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">playerId</span>: <span class="lg-highlight-string">"PlayerA"</span>, <span class="lg-highlight-attr">gameId</span>: <span class="lg-highlight-string">"G1"</span>, <span class="lg-highlight-attr">score</span>: <span class="lg-highlight-number">31</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">playerId</span>: <span class="lg-highlight-string">"PlayerB"</span>, <span class="lg-highlight-attr">gameId</span>: <span class="lg-highlight-string">"G1"</span>, <span class="lg-highlight-attr">score</span>: <span class="lg-highlight-number">33</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">playerId</span>: <span class="lg-highlight-string">"PlayerC"</span>, <span class="lg-highlight-attr">gameId</span>: <span class="lg-highlight-string">"G1"</span>, <span class="lg-highlight-attr">score</span>: <span class="lg-highlight-number">99</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">playerId</span>: <span class="lg-highlight-string">"PlayerD"</span>, <span class="lg-highlight-attr">gameId</span>: <span class="lg-highlight-string">"G1"</span>, <span class="lg-highlight-attr">score</span>: <span class="lg-highlight-number">1</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">playerId</span>: <span class="lg-highlight-string">"PlayerA"</span>, <span class="lg-highlight-attr">gameId</span>: <span class="lg-highlight-string">"G2"</span>, <span class="lg-highlight-attr">score</span>: <span class="lg-highlight-number">10</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">playerId</span>: <span class="lg-highlight-string">"PlayerB"</span>, <span class="lg-highlight-attr">gameId</span>: <span class="lg-highlight-string">"G2"</span>, <span class="lg-highlight-attr">score</span>: <span class="lg-highlight-number">14</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">playerId</span>: <span class="lg-highlight-string">"PlayerC"</span>, <span class="lg-highlight-attr">gameId</span>: <span class="lg-highlight-string">"G2"</span>, <span class="lg-highlight-attr">score</span>: <span class="lg-highlight-number">66</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">playerId</span>: <span class="lg-highlight-string">"PlayerD"</span>, <span class="lg-highlight-attr">gameId</span>: <span class="lg-highlight-string">"G2"</span>, <span class="lg-highlight-attr">score</span>: <span class="lg-highlight-number">80</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">])</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Find the Three Highest
<code class="leafygreen-ui-1l06pbn">
Scores
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#find-the-three-highest-scores" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="find-the-three-highest-scores">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
You can use the
<code class="leafygreen-ui-1l06pbn">
$topN
</code>
accumulator to find the highest scoring
players in a single game.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.gamescores.aggregate( [\n {\n $match : { gameId : \"G1\" }\n },\n {\n $group:\n {\n _id: \"$gameId\",\n playerId:\n {\n $topN:\n {\n output: [\"$playerId\", \"$score\"],\n sortBy: { \"score\": -1 },\n n:3\n }\n }\n }\n }\n] )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">gamescores</span>.<span class="lg-highlight-title lg-highlight-function">aggregate</span>( <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->$match<!-- --> <!-- -->: <!-- -->{ <!-- -->gameId <!-- -->: <span class="lg-highlight-string">"G1"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">$group</span>:</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-string">"$gameId"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">playerId</span>:</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">$topN</span>:</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">output</span>: <!-- -->[<span class="lg-highlight-string">"$playerId"</span>, <span class="lg-highlight-string">"$score"</span>]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">sortBy</span>: <!-- -->{ <span class="lg-highlight-string">"score"</span>: <!-- -->-<span class="lg-highlight-number">1</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">n</span>:<span class="lg-highlight-number">3</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">] )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The example pipeline:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Uses
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/match/#mongodb-pipeline-pipe.-match">
<code class="leafygreen-ui-1l06pbn">
$match
</code>
</a>
to filter the results on a single
<code class="leafygreen-ui-1l06pbn">
gameId
</code>
.
In this case,
<code class="leafygreen-ui-1l06pbn">
G1
</code>
.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Uses
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/group/#mongodb-pipeline-pipe.-group">
<code class="leafygreen-ui-1l06pbn">
$group
</code>
</a>
to group the results by
<code class="leafygreen-ui-1l06pbn">
gameId
</code>
. In this
case,
<code class="leafygreen-ui-1l06pbn">
G1
</code>
.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Uses sort by
<code class="leafygreen-ui-1l06pbn">
{ "score": -1 }
</code>
to sort the results in descending
order.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Specifies the fields that are output from
<code class="leafygreen-ui-1l06pbn">
$topN
</code>
with
<code class="leafygreen-ui-1l06pbn">
output : ["$playerId"," $score"]
</code>
.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Uses
<code class="leafygreen-ui-1l06pbn">
$topN
</code>
to return the top three documents
with the highest
<code class="leafygreen-ui-1l06pbn">
score
</code>
for the
<code class="leafygreen-ui-1l06pbn">
G1
</code>
game with
<code class="leafygreen-ui-1l06pbn">
n : 3
</code>
.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
The operation returns the following results:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"[\n {\n _id: 'G1',\n playerId: [ [ 'PlayerC', 99 ], [ 'PlayerB', 33 ], [ 'PlayerA', 31 ] ]\n }\n]","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-string">'G1'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">playerId</span>: <!-- -->[ <!-- -->[ <span class="lg-highlight-string">'PlayerC'</span>, <span class="lg-highlight-number">99</span> ]<!-- -->, <!-- -->[ <span class="lg-highlight-string">'PlayerB'</span>, <span class="lg-highlight-number">33</span> ]<!-- -->, <!-- -->[ <span class="lg-highlight-string">'PlayerA'</span>, <span class="lg-highlight-number">31</span> ] ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">]</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The SQL equivalent to this query is:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"SELECT T3.GAMEID,T3.PLAYERID,T3.SCORE\nFROM GAMESCORES AS GS\nJOIN (SELECT TOP 3\n GAMEID,PLAYERID,SCORE\n FROM GAMESCORES\n WHERE GAMEID = 'G1'\n ORDER BY SCORE DESC) AS T3\n ON GS.GAMEID = T3.GAMEID\nGROUP BY T3.GAMEID,T3.PLAYERID,T3.SCORE\n ORDER BY T3.SCORE DESC","programmingLanguage":"SQL"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light sql leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">SELECT</span> T3.GAMEID,T3.PLAYERID,T3.SCORE</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">FROM</span> GAMESCORES <span class="lg-highlight-keyword">AS</span> GS</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">JOIN</span> (<span class="lg-highlight-keyword">SELECT</span> TOP <span class="lg-highlight-number">3</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> GAMEID,PLAYERID,SCORE</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">FROM</span> GAMESCORES</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">WHERE</span> GAMEID <span class="lg-highlight-operator">=</span> <span class="lg-highlight-string">'G1'</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">ORDER</span> <span class="lg-highlight-keyword">BY</span> SCORE <span class="lg-highlight-keyword">DESC</span>) <span class="lg-highlight-keyword">AS</span> T3</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">ON</span> GS.GAMEID <span class="lg-highlight-operator">=</span> T3.GAMEID</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">GROUP</span> <span class="lg-highlight-keyword">BY</span> T3.GAMEID,T3.PLAYERID,T3.SCORE</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">ORDER</span> <span class="lg-highlight-keyword">BY</span> T3.SCORE <span class="lg-highlight-keyword">DESC</span></td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Finding the Three Highest Score Documents Across Multiple Games
<a class="headerlink leafygreen-ui-1kepx47" href="#finding-the-three-highest-score-documents-across-multiple-games" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="finding-the-three-highest-score-documents-across-multiple-games">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
You can use the
<code class="leafygreen-ui-1l06pbn">
$topN
</code>
accumulator to find the highest scoring
players in each game.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.gamescores.aggregate( [\n {\n $group:\n { _id: \"$gameId\", playerId:\n {\n $topN:\n {\n output: [ \"$playerId\",\"$score\" ],\n sortBy: { \"score\": -1 },\n n: 3\n }\n }\n }\n }\n] )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">gamescores</span>.<span class="lg-highlight-title lg-highlight-function">aggregate</span>( <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">$group</span>:</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-string">"$gameId"</span>, <span class="lg-highlight-attr">playerId</span>:</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">$topN</span>:</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">output</span>: <!-- -->[ <span class="lg-highlight-string">"$playerId"</span>,<span class="lg-highlight-string">"$score"</span> ]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">sortBy</span>: <!-- -->{ <span class="lg-highlight-string">"score"</span>: <!-- -->-<span class="lg-highlight-number">1</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">n</span>: <span class="lg-highlight-number">3</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">] )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The example pipeline:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Uses
<code class="leafygreen-ui-1l06pbn">
$group
</code>
to group the results by
<code class="leafygreen-ui-1l06pbn">
gameId
</code>
.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Specifies the fields that are output from
<code class="leafygreen-ui-1l06pbn">
$topN
</code>
with
<code class="leafygreen-ui-1l06pbn">
output : ["$playerId", "$score"]
</code>
.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Uses sort by
<code class="leafygreen-ui-1l06pbn">
{ "score": -1 }
</code>
to sort the results in descending
order.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Uses
<code class="leafygreen-ui-1l06pbn">
$topN
</code>
to return the top three documents
with the highest
<code class="leafygreen-ui-1l06pbn">
score
</code>
for each game with
<code class="leafygreen-ui-1l06pbn">
n: 3
</code>
.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
The operation returns the following results:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"[\n {\n _id: 'G1',\n playerId: [ [ 'PlayerC', 99 ], [ 'PlayerB', 33 ], [ 'PlayerA', 31 ] ]\n },\n {\n _id: 'G2',\n playerId: [ [ 'PlayerD', 80 ], [ 'PlayerC', 66 ], [ 'PlayerB', 14 ] ]\n }\n]","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-string">'G1'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">playerId</span>: <!-- -->[ <!-- -->[ <span class="lg-highlight-string">'PlayerC'</span>, <span class="lg-highlight-number">99</span> ]<!-- -->, <!-- -->[ <span class="lg-highlight-string">'PlayerB'</span>, <span class="lg-highlight-number">33</span> ]<!-- -->, <!-- -->[ <span class="lg-highlight-string">'PlayerA'</span>, <span class="lg-highlight-number">31</span> ] ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-string">'G2'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">playerId</span>: <!-- -->[ <!-- -->[ <span class="lg-highlight-string">'PlayerD'</span>, <span class="lg-highlight-number">80</span> ]<!-- -->, <!-- -->[ <span class="lg-highlight-string">'PlayerC'</span>, <span class="lg-highlight-number">66</span> ]<!-- -->, <!-- -->[ <span class="lg-highlight-string">'PlayerB'</span>, <span class="lg-highlight-number">14</span> ] ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">]</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The SQL equivalent to this query is:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"SELECT PLAYERID,GAMEID,SCORE\nFROM(\n SELECT ROW_NUMBER() OVER (PARTITION BY GAMEID ORDER BY SCORE DESC) AS GAMERANK,\n GAMEID,PLAYERID,SCORE\n FROM GAMESCORES\n) AS T\nWHERE GAMERANK <= 3\nORDER BY GAMEID","programmingLanguage":"SQL"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light sql leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">SELECT</span> PLAYERID,GAMEID,SCORE</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">FROM</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">SELECT</span> <span class="lg-highlight-built_in">ROW_NUMBER</span>(<!-- -->) <span class="lg-highlight-keyword">OVER</span> (<span class="lg-highlight-keyword">PARTITION</span> <span class="lg-highlight-keyword">BY</span> GAMEID <span class="lg-highlight-keyword">ORDER</span> <span class="lg-highlight-keyword">BY</span> SCORE <span class="lg-highlight-keyword">DESC</span>) <span class="lg-highlight-keyword">AS</span> GAMERANK,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> GAMEID,PLAYERID,SCORE</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">FROM</span> GAMESCORES</td></tr><tr class=""><td class="leafygreen-ui-7razhx">) <span class="lg-highlight-keyword">AS</span> T</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">WHERE</span> GAMERANK <span class="lg-highlight-operator"><=</span> <span class="lg-highlight-number">3</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">ORDER</span> <span class="lg-highlight-keyword">BY</span> GAMEID</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Computing
<code class="leafygreen-ui-1l06pbn">
n
</code>
Based on the Group Key for
<code class="leafygreen-ui-1l06pbn">
$group
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#computing-n-based-on-the-group-key-for--group" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="computing-n-based-on-the-group-key-for--group">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
You can also assign the value of
<code class="leafygreen-ui-1l06pbn">
n
</code>
dynamically. In this example,
the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/cond/#mongodb-expression-exp.-cond">
<code class="leafygreen-ui-1l06pbn">
$cond
</code>
</a>
expression is used on the
<code class="leafygreen-ui-1l06pbn">
gameId
</code>
field.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.gamescores.aggregate([\n {\n $group:\n {\n _id: {\"gameId\": \"$gameId\"},\n gamescores:\n {\n $topN:\n {\n output: \"$score\",\n n: { $cond: { if: {$eq: [\"$gameId\",\"G2\"] }, then: 1, else: 3 } },\n sortBy: { \"score\": -1 }\n }\n }\n }\n }\n] )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">gamescores</span>.<span class="lg-highlight-title lg-highlight-function">aggregate</span>(<!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">$group</span>:</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">_id</span>: <!-- -->{<span class="lg-highlight-string">"gameId"</span>: <span class="lg-highlight-string">"$gameId"</span>}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">gamescores</span>:</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">$topN</span>:</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">output</span>: <span class="lg-highlight-string">"$score"</span>,</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">n</span>: <!-- -->{ <span class="lg-highlight-attr">$cond</span>: <!-- -->{ <span class="lg-highlight-attr">if</span>: <!-- -->{<span class="lg-highlight-attr">$eq</span>: <!-- -->[<span class="lg-highlight-string">"$gameId"</span>,<span class="lg-highlight-string">"G2"</span>] }<!-- -->, <span class="lg-highlight-attr">then</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-attr">else</span>: <span class="lg-highlight-number">3</span> } }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">sortBy</span>: <!-- -->{ <span class="lg-highlight-string">"score"</span>: <!-- -->-<span class="lg-highlight-number">1</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">] )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The example pipeline:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Uses
<code class="leafygreen-ui-1l06pbn">
$group
</code>
to group the results by
<code class="leafygreen-ui-1l06pbn">
gameId
</code>
.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Specifies the fields that are output from
<code class="leafygreen-ui-1l06pbn">
$topN
</code>
with
<code class="leafygreen-ui-1l06pbn">
output : "$score"
</code>
.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
If the
<code class="leafygreen-ui-1l06pbn">
gameId
</code>
is
<code class="leafygreen-ui-1l06pbn">
G2
</code>
then
<code class="leafygreen-ui-1l06pbn">
n
</code>
is 1, otherwise
<code class="leafygreen-ui-1l06pbn">
n
</code>
is 3.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Uses sort by
<code class="leafygreen-ui-1l06pbn">
{ "score": -1 }
</code>
to sort the results in descending
order.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
The operation returns the following results:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"[\n { _id: { gameId: 'G1' }, gamescores: [ 99, 33, 31 ] },\n { _id: { gameId: 'G2' }, gamescores: [ 80 ] }\n]","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <!-- -->{ <span class="lg-highlight-attr">gameId</span>: <span class="lg-highlight-string">'G1'</span> }<!-- -->, <span class="lg-highlight-attr">gamescores</span>: <!-- -->[ <span class="lg-highlight-number">99</span>, <span class="lg-highlight-number">33</span>, <span class="lg-highlight-number">31</span> ] }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <!-- -->{ <span class="lg-highlight-attr">gameId</span>: <span class="lg-highlight-string">'G2'</span> }<!-- -->, <span class="lg-highlight-attr">gamescores</span>: <!-- -->[ <span class="lg-highlight-number">80</span> ] }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">]</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</section>
</section>
</section>
|
https://www.mongodb.com/docs/manual/core/replica-set-primary/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Replica Set Primary
<a class="headerlink leafygreen-ui-1kepx47" href="#replica-set-primary" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="replica-set-primary">
</div>
</a>
</h1>
<p class="leafygreen-ui-1kp3ins">
The primary is the only member in the replica set that receives write
operations. MongoDB applies write operations on the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-primary">
primary
</a>
and
then records the operations on the primary's
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/replica-set-oplog/">
oplog
</a>
.
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/replica-set-members/#std-label-replica-set-secondary-members">
Secondary
</a>
members replicate this log and apply
the operations to their data sets.
</p>
<p class="leafygreen-ui-1kp3ins">
In the following three-member replica set, the primary accepts all
write operations. Then the secondaries replicate the oplog to apply to
their data sets.
</p>
<div class="css-18h91be ej97su30">
<div role="button" tabindex="-1">
<img alt="Diagram of default routing of reads and writes to the primary." class="leafygreen-ui-1qnf57e" height="507" src="/docs/manual/images/replica-set-read-write-operations-primary.bakedsvg.svg" style="--border-color:#C1C7C6" width="620"/>
<div class="css-19pi7x2 ej97su31" style="--color:#444">
click to enlarge
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
All members of the replica set can accept read operations. However, by
default, an application directs its read operations to the primary
member. See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/read-preference/">
Read Preference
</a>
for details on changing the
default read behavior.
</p>
<p class="leafygreen-ui-1kp3ins">
The replica set can have at most one primary.
<a class="footnote-reference header-buffer" href="#footnote-edge-cases-2-primaries" id="ref-edge-cases-2-primaries-id1">
[
<!-- -->
1
<!-- -->
]
</a>
If the current primary becomes unavailable,
an election determines the new primary. See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/replica-set-elections/">
Replica Set Elections
</a>
for more details.
</p>
<p class="leafygreen-ui-1kp3ins">
In the following 3-member replica set, the primary becomes unavailable.
This triggers an election which selects one of the remaining
secondaries as the new primary.
</p>
<div class="css-18h91be ej97su30">
<div role="button" tabindex="-1">
<img alt="Diagram of an election of a new primary. In a three member replica set with two secondaries, the primary becomes unreachable. The loss of a primary triggers an election where one of the secondaries becomes the new primary" class="leafygreen-ui-1qnf57e" height="500" src="/docs/manual/images/replica-set-trigger-election.bakedsvg.svg" style="--border-color:#C1C7C6" width="660"/>
<div class="css-19pi7x2 ej97su31" style="--color:#444">
click to enlarge
</div>
</div>
</div>
<table class="header-buffer leafygreen-ui-rbqgrl" frame="void" id="footnote-edge-cases-2-primaries" rules="none">
<colgroup>
<col/>
</colgroup>
<tbody valign="top">
<tr>
<td class="leafygreen-ui-17r2xs0">
[
<a href="#ref-edge-cases-2-primaries-id1">
1
</a>
]
</td>
<td class="leafygreen-ui-17r2xs0">
<!-- -->
In
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/read-preference-use-cases/#std-label-edge-cases">
some circumstances
</a>
, two nodes in a replica set
may
<em>
transiently
</em>
believe that they are the primary, but at most, one
of them will be able to complete writes with
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/write-concern/#mongodb-writeconcern-writeconcern.-majority-">
<code class="leafygreen-ui-1l06pbn">
{ w:
"majority" }
</code>
</a>
write concern. The node that can complete
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/write-concern/#mongodb-writeconcern-writeconcern.-majority-">
<code class="leafygreen-ui-1l06pbn">
{ w: "majority" }
</code>
</a>
writes is the current
primary, and the other node is a former primary that has not yet
recognized its demotion, typically due to a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-network-partition">
network partition
</a>
.
When this occurs, clients that connect to the former primary may
observe stale data despite having requested read preference
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/read-preference/#mongodb-readmode-primary">
<code class="leafygreen-ui-1l06pbn">
primary
</code>
</a>
, and new writes to the former primary will
eventually roll back.
</td>
</tr>
</tbody>
</table>
</section>
|
https://www.mongodb.com/docs/manual/reference/method/PlanCache.list/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
PlanCache.list()
<a class="headerlink leafygreen-ui-1kepx47" href="#plancache.list--" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="plancache.list--">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#definition" target="_self">
<span>
Definition
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#consideration" target="_self">
<span>
Consideration
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#required-access" target="_self">
<span>
Required Access
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#examples" target="_self">
<span>
Examples
</span>
</a>
</li>
</ul>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Definition
<a class="headerlink leafygreen-ui-1kepx47" href="#definition" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="definition">
</div>
</a>
</h2>
<dl class="method">
<dt>
<code class="leafygreen-ui-1l06pbn">
PlanCache.list(<pipeline>)
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-method-PlanCache.list" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-method-PlanCache.list">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Returns an array of
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/query-plans/#std-label-query-plans-query-optimization">
plan cache
</a>
entries
for a collection.
</p>
<p class="leafygreen-ui-1kp3ins">
The method is only available from the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.getPlanCache/#mongodb-method-db.collection.getPlanCache">
<code class="leafygreen-ui-1l06pbn">
plan cache object
</code>
</a>
of a specific collection; i.e.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.collection.getPlanCache().list(<pipeline>)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">collection</span>.<span class="lg-highlight-title lg-highlight-function">getPlanCache</span>(<!-- -->).<span class="lg-highlight-title lg-highlight-function">list</span>(<<!-- -->pipeline<!-- -->><!-- -->)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:20%"/>
<col style="width:20%"/>
<col style="width:60%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Parameter
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Type
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-plancache-list-pipeline" target="_self">
<span>
pipeline
</span>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Array
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-plancache-list-pipeline">
</span>
<p class="leafygreen-ui-1kp3ins">
Optional.
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/aggregation-pipeline/#std-label-aggregation-pipeline">
Aggregation pipeline
</a>
to filter/process the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-plan-cache-query-shape">
plan cache query shapes
<!-- -->
.
</a>
</p>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<p class="leafygreen-ui-1kp3ins">
You can run this method from a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instance. When run on a sharded cluster, the
method returns plan cache entry information from a single member in
each shard replica set. This member is identified with the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/planCacheStats/#std-label-plancachestats-shard">
shard
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/planCacheStats/#std-label-plancachestats-host">
host
</a>
fields. See also
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-plancache-list-read-pref" target="_self">
<span>
Read Preference
<!-- -->
.
</span>
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
The method
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-PlanCache.list" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
PlanCache.list()
</code>
</span>
</a>
wraps the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/planCacheStats/#mongodb-pipeline-pipe.-planCacheStats">
<code class="leafygreen-ui-1l06pbn">
$planCacheStats
</code>
</a>
aggregation pipeline. That is,
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.collection.getPlanCache().list([<stage1>, <stage2>, ...] )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">collection</span>.<span class="lg-highlight-title lg-highlight-function">getPlanCache</span>(<!-- -->).<span class="lg-highlight-title lg-highlight-function">list</span>(<!-- -->[<<!-- -->stage1<!-- -->><!-- -->,<!-- --> <!-- --><<!-- -->stage2<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- -->] )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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<p class="leafygreen-ui-1kp3ins">
is equivalent to
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.collection.aggregate([ <$planCacheStats stage>, <stage1>, <stage2>, ... ]).toArray();","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">collection</span>.<span class="lg-highlight-title lg-highlight-function">aggregate</span>(<!-- -->[ <!-- --><<!-- -->$planCacheStats<!-- --> stage<!-- -->><!-- -->,<!-- --> <!-- --><<!-- -->stage1<!-- -->><!-- -->,<!-- --> <!-- --><<!-- -->stage2<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> ]).<span class="lg-highlight-title lg-highlight-function">toArray</span>(<!-- -->)<!-- -->;</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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<p class="leafygreen-ui-1kp3ins">
For details on the output, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/planCacheStats/#std-label-planCacheStats-output">
$planCacheStats output
<!-- -->
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
Not all queries automatically place a query plan in the cache.
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-PlanCache.list" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
PlanCache.list()
</code>
</span>
</a>
returns an empty array if there are
currently no plan cache query shapes with cached query plans.
</p>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/planCacheStats/#mongodb-pipeline-pipe.-planCacheStats">
<code class="leafygreen-ui-1l06pbn">
$planCacheStats
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.aggregate/#mongodb-method-db.collection.aggregate">
<code class="leafygreen-ui-1l06pbn">
db.collection.aggregate()
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/cursor.toArray/#mongodb-method-cursor.toArray">
<code class="leafygreen-ui-1l06pbn">
toArray()
</code>
</a>
</p>
</li>
</ul>
</div>
</div>
</dd>
</dl>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Consideration
<a class="headerlink leafygreen-ui-1kepx47" href="#consideration" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="consideration">
</div>
</a>
</h2>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Query Settings
<a class="headerlink leafygreen-ui-1kepx47" href="#query-settings" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="query-settings">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 8.0, use query settings instead of adding
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/query-plans/#std-label-index-filters">
index filters
</a>
. Index filters are deprecated
starting in MongoDB 8.0.
</p>
<p class="leafygreen-ui-1kp3ins">
Query settings have more functionality than index filters. Also, index
filters aren't persistent and you cannot easily create index filters for
all cluster nodes. To add query settings and explore examples, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/setQuerySettings/#mongodb-dbcommand-dbcmd.setQuerySettings">
<code class="leafygreen-ui-1l06pbn">
setQuerySettings
</code>
.
</a>
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Restrictions
<a class="headerlink leafygreen-ui-1kepx47" href="#restrictions" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="restrictions">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-PlanCache.list" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
PlanCache.list()
</code>
</span>
</a>
is not allowed in
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/transactions/">
transactions
<!-- -->
.
</a>
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Query Hash and Plan Cache Query Shapes
<a class="headerlink leafygreen-ui-1kepx47" href="#query-hash-and-plan-cache-query-shapes" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="query-hash-and-plan-cache-query-shapes">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
To help identify slow queries with the same
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-plan-cache-query-shape">
plan cache query shape
</a>
, each plan cache query shape is associated with a query hash.
The plan cache query shape hash is a hexadecimal string that
represents a hash of the query shape and is dependent only on the
query shape.
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
As with any hash function, two different query shapes may result
in the same hash value. However, the occurrence of hash
collisions between different query shapes is unlikely.
</p>
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 8.0, the pre-existing
<code class="leafygreen-ui-1l06pbn">
queryHash
</code>
field is renamed
to
<code class="leafygreen-ui-1l06pbn">
planCacheShapeHash
</code>
. If you're using an earlier MongoDB version,
you'll see
<code class="leafygreen-ui-1l06pbn">
queryHash
</code>
instead of
<code class="leafygreen-ui-1l06pbn">
planCacheShapeHash
</code>
.
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The query optimizer only caches the plan for a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-plan-cache-query-shape">
plan cache query shape
</a>
that
can have more than one viable plan.
</p>
<p class="leafygreen-ui-1kp3ins">
Each entry in the plan cache is associated with a
<code class="leafygreen-ui-1l06pbn">
planCacheShapeHash
</code>
.
</p>
<div class="leafygreen-ui-1sjx7ru" role="note">
<h2 class="leafygreen-ui-29m78u">
Warning
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 8.0, the pre-existing
<code class="leafygreen-ui-1l06pbn">
queryHash
</code>
field is renamed
to
<code class="leafygreen-ui-1l06pbn">
planCacheShapeHash
</code>
. If you're using an earlier MongoDB version,
you'll see
<code class="leafygreen-ui-1l06pbn">
queryHash
</code>
instead of
<code class="leafygreen-ui-1l06pbn">
planCacheShapeHash
</code>
.
</p>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-plancache-list-read-pref">
</span>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Read Preference
<a class="headerlink leafygreen-ui-1kepx47" href="#read-preference" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="read-preference">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-PlanCache.list" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
PlanCache.list()
</code>
</span>
</a>
observes the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/read-preference/">
read preference
</a>
in selecting the host(s) from which to return
the plan cache information.
</p>
<p class="leafygreen-ui-1kp3ins">
Applications may target different members of a replica set. As such,
each replica set member might receive different read commands and have
plan cache information that differs from other members. Nevertheless,
running
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-PlanCache.list" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
PlanCache.list()
</code>
</span>
</a>
on a replica set or a sharded
cluster obeys the normal read preference rules. That is, on a replica
set, the operation gathers plan cache information from just one member
of replica set, and on a sharded cluster, the operation gathers plan
cache information from just one member of each shard replica set.
</p>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Required Access
<a class="headerlink leafygreen-ui-1kepx47" href="#required-access" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="required-access">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
On systems running with
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-security.authorization">
<code class="leafygreen-ui-1l06pbn">
authorization
</code>
</a>
, the user
must have the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/privilege-actions/#mongodb-authaction-planCacheRead">
<code class="leafygreen-ui-1l06pbn">
planCacheRead
</code>
</a>
privilege for the collection.
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Examples
<a class="headerlink leafygreen-ui-1kepx47" href="#examples" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="examples">
</div>
</a>
</h2>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Not all queries automatically place a query plan in the cache.
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-PlanCache.list" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
PlanCache.list()
</code>
</span>
</a>
returns an empty array if
there are currently no query shapes with cached query plans.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For details on the output, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/planCacheStats/#std-label-planCacheStats-output">
$planCacheStats output
<!-- -->
.
</a>
</p>
</li>
</ul>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The examples in this section use the following
<code class="leafygreen-ui-1l06pbn">
orders
</code>
collection:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.orders.insertMany( [\n { \"_id\" : 1, \"item\" : \"abc\", \"price\" : NumberDecimal(\"12\"), \"quantity\" : 2, \"type\": \"apparel\" },\n { \"_id\" : 2, \"item\" : \"jkl\", \"price\" : NumberDecimal(\"20\"), \"quantity\" : 1, \"type\": \"electronics\" },\n { \"_id\" : 3, \"item\" : \"abc\", \"price\" : NumberDecimal(\"10\"), \"quantity\" : 5, \"type\": \"apparel\" },\n { \"_id\" : 4, \"item\" : \"abc\", \"price\" : NumberDecimal(\"8\"), \"quantity\" : 10, \"type\": \"apparel\" },\n { \"_id\" : 5, \"item\" : \"jkl\", \"price\" : NumberDecimal(\"15\"), \"quantity\" : 15, \"type\": \"electronics\" }\n] )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">orders</span>.<span class="lg-highlight-title lg-highlight-function">insertMany</span>( <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-string">"item"</span> <!-- -->: <span class="lg-highlight-string">"abc"</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">NumberDecimal</span>(<span class="lg-highlight-string">"12"</span>)<!-- -->, <span class="lg-highlight-string">"quantity"</span> <!-- -->: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-string">"type"</span>: <span class="lg-highlight-string">"apparel"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-string">"item"</span> <!-- -->: <span class="lg-highlight-string">"jkl"</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">NumberDecimal</span>(<span class="lg-highlight-string">"20"</span>)<!-- -->, <span class="lg-highlight-string">"quantity"</span> <!-- -->: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-string">"type"</span>: <span class="lg-highlight-string">"electronics"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">3</span>, <span class="lg-highlight-string">"item"</span> <!-- -->: <span class="lg-highlight-string">"abc"</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">NumberDecimal</span>(<span class="lg-highlight-string">"10"</span>)<!-- -->, <span class="lg-highlight-string">"quantity"</span> <!-- -->: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-string">"type"</span>: <span class="lg-highlight-string">"apparel"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">4</span>, <span class="lg-highlight-string">"item"</span> <!-- -->: <span class="lg-highlight-string">"abc"</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">NumberDecimal</span>(<span class="lg-highlight-string">"8"</span>)<!-- -->, <span class="lg-highlight-string">"quantity"</span> <!-- -->: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-string">"type"</span>: <span class="lg-highlight-string">"apparel"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-string">"item"</span> <!-- -->: <span class="lg-highlight-string">"jkl"</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">NumberDecimal</span>(<span class="lg-highlight-string">"15"</span>)<!-- -->, <span class="lg-highlight-string">"quantity"</span> <!-- -->: <span class="lg-highlight-number">15</span>, <span class="lg-highlight-string">"type"</span>: <span class="lg-highlight-string">"electronics"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">] )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Create the following indexes on the collection:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.orders.createIndex( { item: 1 } );\ndb.orders.createIndex( { item: 1, quantity: 1 } );\ndb.orders.createIndex( { item: 1, price: 1 }, { partialFilterExpression: { price: { $gte: NumberDecimal(\"10\")} } } );\ndb.orders.createIndex( { quantity: 1 } );\ndb.orders.createIndex( { quantity: 1, type: 1 } );","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">orders</span>.<span class="lg-highlight-title lg-highlight-function">createIndex</span>( <!-- -->{ <span class="lg-highlight-attr">item</span>: <span class="lg-highlight-number">1</span> } )<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">orders</span>.<span class="lg-highlight-title lg-highlight-function">createIndex</span>( <!-- -->{ <span class="lg-highlight-attr">item</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-attr">quantity</span>: <span class="lg-highlight-number">1</span> } )<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">orders</span>.<span class="lg-highlight-title lg-highlight-function">createIndex</span>( <!-- -->{ <span class="lg-highlight-attr">item</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">1</span> }<!-- -->, <!-- -->{ <span class="lg-highlight-attr">partialFilterExpression</span>: <!-- -->{ <span class="lg-highlight-attr">price</span>: <!-- -->{ <span class="lg-highlight-attr">$gte</span>: <span class="lg-highlight-title lg-highlight-class">NumberDecimal</span>(<span class="lg-highlight-string">"10"</span>)} } } )<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">orders</span>.<span class="lg-highlight-title lg-highlight-function">createIndex</span>( <!-- -->{ <span class="lg-highlight-attr">quantity</span>: <span class="lg-highlight-number">1</span> } )<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">orders</span>.<span class="lg-highlight-title lg-highlight-function">createIndex</span>( <!-- -->{ <span class="lg-highlight-attr">quantity</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-attr">type</span>: <span class="lg-highlight-number">1</span> } )<!-- -->;</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Index
<code class="leafygreen-ui-1l06pbn">
{ item: 1, price: 1 }
</code>
is a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/index-partial/">
partial index
</a>
and only indexes documents with
<code class="leafygreen-ui-1l06pbn">
price
</code>
field greater than or equal to
<code class="leafygreen-ui-1l06pbn">
NumberDecimal("10")
</code>
.
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Run some queries against the collection:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.orders.find( { item: \"abc\", price: { $gte: NumberDecimal(\"10\") } } )\ndb.orders.find( { item: \"abc\", price: { $gte: NumberDecimal(\"5\") } } )\ndb.orders.find( { quantity: { $gte: 20 } } )\ndb.orders.find( { quantity: { $gte: 5 }, type: \"apparel\" } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">orders</span>.<span class="lg-highlight-title lg-highlight-function">find</span>( <!-- -->{ <span class="lg-highlight-attr">item</span>: <span class="lg-highlight-string">"abc"</span>, <span class="lg-highlight-attr">price</span>: <!-- -->{ <span class="lg-highlight-attr">$gte</span>: <span class="lg-highlight-title lg-highlight-class">NumberDecimal</span>(<span class="lg-highlight-string">"10"</span>) } } )</td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">orders</span>.<span class="lg-highlight-title lg-highlight-function">find</span>( <!-- -->{ <span class="lg-highlight-attr">item</span>: <span class="lg-highlight-string">"abc"</span>, <span class="lg-highlight-attr">price</span>: <!-- -->{ <span class="lg-highlight-attr">$gte</span>: <span class="lg-highlight-title lg-highlight-class">NumberDecimal</span>(<span class="lg-highlight-string">"5"</span>) } } )</td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">orders</span>.<span class="lg-highlight-title lg-highlight-function">find</span>( <!-- -->{ <span class="lg-highlight-attr">quantity</span>: <!-- -->{ <span class="lg-highlight-attr">$gte</span>: <span class="lg-highlight-number">20</span> } } )</td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">orders</span>.<span class="lg-highlight-title lg-highlight-function">find</span>( <!-- -->{ <span class="lg-highlight-attr">quantity</span>: <!-- -->{ <span class="lg-highlight-attr">$gte</span>: <span class="lg-highlight-number">5</span> }<!-- -->, <span class="lg-highlight-attr">type</span>: <span class="lg-highlight-string">"apparel"</span> } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</div>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Return Information for All Entries in the Query Cache
<a class="headerlink leafygreen-ui-1kepx47" href="#return-information-for-all-entries-in-the-query-cache" title="Permalink to this heading">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="return-information-for-all-entries-in-the-query-cache">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The following returns the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-plan-cache-query-shape">
plan cache query shapes
</a>
that have
cached plans for the
<code class="leafygreen-ui-1l06pbn">
orders
</code>
collection:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.orders.getPlanCache().list()","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">orders</span>.<span class="lg-highlight-title lg-highlight-function">getPlanCache</span>(<!-- -->).<span class="lg-highlight-title lg-highlight-function">list</span>(<!-- -->)</td></tr></tbody></table></code></pre>
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The method returns an array of the plan cache query shapes currently in the cache.
In the example, the
<code class="leafygreen-ui-1l06pbn">
orders
</code>
collection had cached query plans
associated with the following shapes:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"[\n {\n \"createdFromQuery\" : {\n \"query\" : { \"quantity\" : { \"$gte\" : 5 }, \"type\" : \"apparel\" },\n \"sort\" : { },\n \"projection\" : { }\n },\n \"planCacheShapeHash\" : \"4D151C4C\",\n \"planCacheKey\" : \"DD67E353\",\n \"isActive\" : false,\n \"works\" : NumberLong(4),\n \"cachedPlan\" : {\n \"stage\" : \"FETCH\",\n \"filter\" : { \"type\" : { \"$eq\" : \"apparel\" } },\n \"inputStage\" : {\n \"stage\" : \"IXSCAN\",\n \"keyPattern\" : { \"quantity\" : 1 },\n \"indexName\" : \"quantity_1\",\n \"isMultiKey\" : false,\n \"multiKeyPaths\" : { \"quantity\" : [ ] },\n \"isUnique\" : false,\n \"isSparse\" : false,\n \"isPartial\" : false,\n \"indexVersion\" : 2,\n \"direction\" : \"forward\",\n \"indexBounds\" : { \"quantity\" : [ \"[5.0, inf.0]\" ] }\n }\n },\n \"timeOfCreation\" : ISODate(\"2020-02-06T15:57:18.219Z\"),\n \"creationExecStats\" : [\n {\n \"nReturned\" : 2,\n \"executionTimeMillisEstimate\" : 0,\n \"totalKeysExamined\" : 3,\n \"totalDocsExamined\" : 3,\n \"executionStages\" : {\n \"stage\" : \"FETCH\",\n \"filter\" : { \"type\" : { \"$eq\" : \"apparel\" } },\n \"nReturned\" : 2,\n \"executionTimeMillisEstimate\" : 0,\n \"works\" : 4,\n ...\n }\n },\n {\n \"nReturned\" : 2,\n \"executionTimeMillisEstimate\" : 0,\n \"totalKeysExamined\" : 3,\n \"totalDocsExamined\" : 2,\n \"executionStages\" : {\n \"stage\" : \"FETCH\",\n \"nReturned\" : 2,\n \"executionTimeMillisEstimate\" : 0,\n \"works\" : 4,\n ...\n }\n }\n ],\n \"candidatePlanScores\" : [\n 1.5002,\n 1.5002\n ],\n \"indexFilterSet\" : false,\n \"estimatedSizeBytes\" : NumberLong(3160), // Available starting in MongoDB 5.0\n \"host\" : \"mongodb1.example.net:27018\",\n \"shard\" : \"shardA\" // Available if run on sharded cluster\n },\n\n {\n \"createdFromQuery\" : {\n \"query\" : { \"quantity\" : { \"$gte\" : 20 } },\n \"sort\" : { },\n \"projection\" : { }\n },\n \"planCacheShapeHash\" : \"23B19B75\",\n \"planCacheKey\" : \"6F23F858\",\n \"isActive\" : false,\n \"works\" : NumberLong(1),\n ...\n },\n {\n \"createdFromQuery\" : {\n \"query\" : { \"item\" : \"abc\", \"price\" : { \"$gte\" : NumberDecimal(\"5\") } },\n \"sort\" : { },\n \"projection\" : { }\n },\n \"planCacheShapeHash\" : \"117A6B10\",\n \"planCacheKey\" : \"A1824628\",\n \"isActive\" : false,\n \"works\" : NumberLong(4),\n ...\n },\n {\n \"createdFromQuery\" : {\n \"query\" : { \"item\" : \"abc\", \"price\" : { \"$gte\" : NumberDecimal(\"10\") } },\n \"sort\" : { },\n \"projection\" : { }\n },\n \"planCacheShapeHash\" : \"117A6B10\",\n \"planCacheKey\" : \"2E6E536B\",\n \"isActive\" : false,\n \"works\" : NumberLong(3),\n ...\n }\n]","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"createdFromQuery"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"query"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"quantity"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"$gte"</span> <!-- -->: <span class="lg-highlight-number">5</span> }<!-- -->, <span class="lg-highlight-string">"type"</span> <!-- -->: <span class="lg-highlight-string">"apparel"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"sort"</span> <!-- -->: <!-- -->{ <!-- -->}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"projection"</span> <!-- -->: <!-- -->{ <!-- -->}</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"planCacheShapeHash"</span> <!-- -->: <span class="lg-highlight-string">"4D151C4C"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"planCacheKey"</span> <!-- -->: <span class="lg-highlight-string">"DD67E353"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"isActive"</span> <!-- -->: <span class="lg-highlight-literal">false</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"works"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">NumberLong</span>(<span class="lg-highlight-number">4</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"cachedPlan"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"stage"</span> <!-- -->: <span class="lg-highlight-string">"FETCH"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"filter"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"type"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"$eq"</span> <!-- -->: <span class="lg-highlight-string">"apparel"</span> } }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"inputStage"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"stage"</span> <!-- -->: <span class="lg-highlight-string">"IXSCAN"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"keyPattern"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"quantity"</span> <!-- -->: <span class="lg-highlight-number">1</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"indexName"</span> <!-- -->: <span class="lg-highlight-string">"quantity_1"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"isMultiKey"</span> <!-- -->: <span class="lg-highlight-literal">false</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"multiKeyPaths"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"quantity"</span> <!-- -->: <!-- -->[ <!-- -->] }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"isUnique"</span> <!-- -->: <span class="lg-highlight-literal">false</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"isSparse"</span> <!-- -->: <span class="lg-highlight-literal">false</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"isPartial"</span> <!-- -->: <span class="lg-highlight-literal">false</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"indexVersion"</span> <!-- -->: <span class="lg-highlight-number">2</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"direction"</span> <!-- -->: <span class="lg-highlight-string">"forward"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"indexBounds"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"quantity"</span> <!-- -->: <!-- -->[ <span class="lg-highlight-string">"[5.0, inf.0]"</span> ] }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"timeOfCreation"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-02-06T15:57:18.219Z"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"creationExecStats"</span> <!-- -->: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"nReturned"</span> <!-- -->: <span class="lg-highlight-number">2</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"executionTimeMillisEstimate"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"totalKeysExamined"</span> <!-- -->: <span class="lg-highlight-number">3</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"totalDocsExamined"</span> <!-- -->: <span class="lg-highlight-number">3</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"executionStages"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"stage"</span> <!-- -->: <span class="lg-highlight-string">"FETCH"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"filter"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"type"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"$eq"</span> <!-- -->: <span class="lg-highlight-string">"apparel"</span> } }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"nReturned"</span> <!-- -->: <span class="lg-highlight-number">2</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"executionTimeMillisEstimate"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"works"</span> <!-- -->: <span class="lg-highlight-number">4</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"nReturned"</span> <!-- -->: <span class="lg-highlight-number">2</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"executionTimeMillisEstimate"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"totalKeysExamined"</span> <!-- -->: <span class="lg-highlight-number">3</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"totalDocsExamined"</span> <!-- -->: <span class="lg-highlight-number">2</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"executionStages"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"stage"</span> <!-- -->: <span class="lg-highlight-string">"FETCH"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"nReturned"</span> <!-- -->: <span class="lg-highlight-number">2</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"executionTimeMillisEstimate"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"works"</span> <!-- -->: <span class="lg-highlight-number">4</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"candidatePlanScores"</span> <!-- -->: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-number">1.5002</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-number">1.5002</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"indexFilterSet"</span> <!-- -->: <span class="lg-highlight-literal">false</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"estimatedSizeBytes"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">NumberLong</span>(<span class="lg-highlight-number">3160</span>)<!-- -->, <span class="lg-highlight-comment">//</span><span class="lg-highlight-comment"> Available starting in </span><span class="lg-highlight-comment">MongoDB 5.0</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"host"</span> <!-- -->: <span class="lg-highlight-string">"mongodb1.example.net:27018"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"shard"</span> <!-- -->: <span class="lg-highlight-string">"shardA"</span> <span class="lg-highlight-comment">//</span><span class="lg-highlight-comment"> Available if run </span><span class="lg-highlight-comment">on sharded cluster</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"createdFromQuery"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"query"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"quantity"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"$gte"</span> <!-- -->: <span class="lg-highlight-number">20</span> } }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"sort"</span> <!-- -->: <!-- -->{ <!-- -->}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"projection"</span> <!-- -->: <!-- -->{ <!-- -->}</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"planCacheShapeHash"</span> <!-- -->: <span class="lg-highlight-string">"23B19B75"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"planCacheKey"</span> <!-- -->: <span class="lg-highlight-string">"6F23F858"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"isActive"</span> <!-- -->: <span class="lg-highlight-literal">false</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"works"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">NumberLong</span>(<span class="lg-highlight-number">1</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"createdFromQuery"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"query"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"item"</span> <!-- -->: <span class="lg-highlight-string">"abc"</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"$gte"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">NumberDecimal</span>(<span class="lg-highlight-string">"5"</span>) } }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"sort"</span> <!-- -->: <!-- -->{ <!-- -->}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"projection"</span> <!-- -->: <!-- -->{ <!-- -->}</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"planCacheShapeHash"</span> <!-- -->: <span class="lg-highlight-string">"117A6B10"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"planCacheKey"</span> <!-- -->: <span class="lg-highlight-string">"A1824628"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"isActive"</span> <!-- -->: <span class="lg-highlight-literal">false</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"works"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">NumberLong</span>(<span class="lg-highlight-number">4</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"createdFromQuery"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"query"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"item"</span> <!-- -->: <span class="lg-highlight-string">"abc"</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"$gte"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">NumberDecimal</span>(<span class="lg-highlight-string">"10"</span>) } }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"sort"</span> <!-- -->: <!-- -->{ <!-- -->}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"projection"</span> <!-- -->: <!-- -->{ <!-- -->}</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"planCacheShapeHash"</span> <!-- -->: <span class="lg-highlight-string">"117A6B10"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"planCacheKey"</span> <!-- -->: <span class="lg-highlight-string">"2E6E536B"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"isActive"</span> <!-- -->: <span class="lg-highlight-literal">false</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"works"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">NumberLong</span>(<span class="lg-highlight-number">3</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">]</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
<div class="leafygreen-ui-1sjx7ru" role="note">
<h2 class="leafygreen-ui-29m78u">
Warning
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 8.0, the pre-existing
<code class="leafygreen-ui-1l06pbn">
queryHash
</code>
field is renamed
to
<code class="leafygreen-ui-1l06pbn">
planCacheShapeHash
</code>
. If you're using an earlier MongoDB version,
you'll see
<code class="leafygreen-ui-1l06pbn">
queryHash
</code>
instead of
<code class="leafygreen-ui-1l06pbn">
planCacheShapeHash
</code>
.
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
For details on the output, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/planCacheStats/#std-label-planCacheStats-output">
$planCacheStats output
<!-- -->
.
</a>
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
List Plan Cache Query Shapes
<a class="headerlink leafygreen-ui-1kepx47" href="#list-plan-cache-query-shapes" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="list-plan-cache-query-shapes">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
To obtain a list of all of the query shapes for which there is a cached plan,
you can use the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-PlanCache.list" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
PlanCache.list()
</code>
</span>
</a>
. For example, the following operation
passes in a pipeline with a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/project/#mongodb-pipeline-pipe.-project">
<code class="leafygreen-ui-1l06pbn">
$project
</code>
</a>
stage to only output the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/planCacheStats/#std-label-plancachestats-createdFromQuery">
createdFromQuery
</a>
field and the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/planCacheStats/#std-label-plancachestats-planCacheShapeHash">
planCacheShapeHash
</a>
field.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.orders.getPlanCache().list( [ { $project: {createdFromQuery: 1, planCacheShapeHash: 1 } } ] )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">orders</span>.<span class="lg-highlight-title lg-highlight-function">getPlanCache</span>(<!-- -->).<span class="lg-highlight-title lg-highlight-function">list</span>( <!-- -->[ <!-- -->{ <span class="lg-highlight-attr">$project</span>: <!-- -->{<span class="lg-highlight-attr">createdFromQuery</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-attr">planCacheShapeHash</span>: <span class="lg-highlight-number">1</span> } } ] )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<div class="leafygreen-ui-1sjx7ru" role="note">
<h2 class="leafygreen-ui-29m78u">
Warning
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 8.0, the pre-existing
<code class="leafygreen-ui-1l06pbn">
queryHash
</code>
field is renamed
to
<code class="leafygreen-ui-1l06pbn">
planCacheShapeHash
</code>
. If you're using an earlier MongoDB version,
you'll see
<code class="leafygreen-ui-1l06pbn">
queryHash
</code>
instead of
<code class="leafygreen-ui-1l06pbn">
planCacheShapeHash
</code>
.
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The operation returns the following plan cache query shapes:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"[\n { \"createdFromQuery\" : { \"query\" : { \"quantity\" : { \"$gte\" : 5 }, \"type\" : \"apparel\" }, \"sort\" : { }, \"projection\" : { } }, \"planCacheShapeHash\" : \"4D151C4C\" },\n { \"createdFromQuery\" : { \"query\" : { \"quantity\" : { \"$gte\" : 20 } }, \"sort\" : { }, \"projection\" : { } }, \"planCacheShapeHash\" : \"23B19B75\" },\n { \"createdFromQuery\" : { \"query\" : { \"item\" : \"abc\", \"price\" : { \"$gte\" : NumberDecimal(\"5\") } }, \"sort\" : { }, \"projection\" : { } }, \"planCacheShapeHash\" : \"117A6B10\" },\n { \"createdFromQuery\" : { \"query\" : { \"item\" : \"abc\", \"price\" : { \"$gte\" : NumberDecimal(\"10\") } }, \"sort\" : { }, \"projection\" : { } }, \"planCacheShapeHash\" : \"117A6B10\" }\n]","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"createdFromQuery"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"query"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"quantity"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"$gte"</span> <!-- -->: <span class="lg-highlight-number">5</span> }<!-- -->, <span class="lg-highlight-string">"type"</span> <!-- -->: <span class="lg-highlight-string">"apparel"</span> }<!-- -->, <span class="lg-highlight-string">"sort"</span> <!-- -->: <!-- -->{ <!-- -->}<!-- -->, <span class="lg-highlight-string">"projection"</span> <!-- -->: <!-- -->{ <!-- -->} }<!-- -->, <span class="lg-highlight-string">"planCacheShapeHash"</span> <!-- -->: <span class="lg-highlight-string">"4D151C4C"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"createdFromQuery"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"query"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"quantity"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"$gte"</span> <!-- -->: <span class="lg-highlight-number">20</span> } }<!-- -->, <span class="lg-highlight-string">"sort"</span> <!-- -->: <!-- -->{ <!-- -->}<!-- -->, <span class="lg-highlight-string">"projection"</span> <!-- -->: <!-- -->{ <!-- -->} }<!-- -->, <span class="lg-highlight-string">"planCacheShapeHash"</span> <!-- -->: <span class="lg-highlight-string">"23B19B75"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"createdFromQuery"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"query"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"item"</span> <!-- -->: <span class="lg-highlight-string">"abc"</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"$gte"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">NumberDecimal</span>(<span class="lg-highlight-string">"5"</span>) } }<!-- -->, <span class="lg-highlight-string">"sort"</span> <!-- -->: <!-- -->{ <!-- -->}<!-- -->, <span class="lg-highlight-string">"projection"</span> <!-- -->: <!-- -->{ <!-- -->} }<!-- -->, <span class="lg-highlight-string">"planCacheShapeHash"</span> <!-- -->: <span class="lg-highlight-string">"117A6B10"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"createdFromQuery"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"query"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"item"</span> <!-- -->: <span class="lg-highlight-string">"abc"</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"$gte"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">NumberDecimal</span>(<span class="lg-highlight-string">"10"</span>) } }<!-- -->, <span class="lg-highlight-string">"sort"</span> <!-- -->: <!-- -->{ <!-- -->}<!-- -->, <span class="lg-highlight-string">"projection"</span> <!-- -->: <!-- -->{ <!-- -->} }<!-- -->, <span class="lg-highlight-string">"planCacheShapeHash"</span> <!-- -->: <span class="lg-highlight-string">"117A6B10"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">]</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
For details on the output, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/planCacheStats/#std-label-planCacheStats-output">
$planCacheStats output
<!-- -->
.
</a>
</p>
<span class="leafygreen-ui-1qnjd6d" id="std-label-planCache-list-cache-entry-for-query-shape">
</span>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Find Cache Entry Details for a Plan Cache Query Shape
<a class="headerlink leafygreen-ui-1kepx47" href="#find-cache-entry-details-for-a-plan-cache-query-shape" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="find-cache-entry-details-for-a-plan-cache-query-shape">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
To return plan cache information for a particular query shape, pass in
a pipeline with a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/match/#mongodb-pipeline-pipe.-match">
<code class="leafygreen-ui-1l06pbn">
$match
</code>
</a>
on the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/planCacheStats/#std-label-plancachestats-planCacheKey">
planCacheKey
</a>
field.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.orders.getPlanCache().list([ { $match: { planCacheKey: \"DD67E353\"} } ] )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">orders</span>.<span class="lg-highlight-title lg-highlight-function">getPlanCache</span>(<!-- -->).<span class="lg-highlight-title lg-highlight-function">list</span>(<!-- -->[ <!-- -->{ <span class="lg-highlight-attr">$match</span>: <!-- -->{ <span class="lg-highlight-attr">planCacheKey</span>: <span class="lg-highlight-string">"DD67E353"</span>} } ] )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The operation returns the following:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"[\n {\n \"createdFromQuery\" : {\n \"query\" : {\n \"quantity\" : {\n \"$gte\" : 5\n },\n \"type\" : \"apparel\"\n },\n \"sort\" : {\n\n },\n \"projection\" : {\n\n }\n },\n \"planCacheShapeHash\" : \"4D151C4C\",\n \"planCacheKey\" : \"DD67E353\",\n \"isActive\" : false,\n \"works\" : NumberLong(4),\n \"cachedPlan\" : {\n \"stage\" : \"FETCH\",\n \"filter\" : {\n \"type\" : {\n \"$eq\" : \"apparel\"\n }\n },\n \"inputStage\" : {\n \"stage\" : \"IXSCAN\",\n \"keyPattern\" : {\n \"quantity\" : 1\n },\n \"indexName\" : \"quantity_1\",\n \"isMultiKey\" : false,\n \"multiKeyPaths\" : {\n \"quantity\" : [ ]\n },\n \"isUnique\" : false,\n \"isSparse\" : false,\n \"isPartial\" : false,\n \"indexVersion\" : 2,\n \"direction\" : \"forward\",\n \"indexBounds\" : {\n \"quantity\" : [\n \"[5.0, inf.0]\"\n ]\n }\n }\n },\n \"timeOfCreation\" : ISODate(\"2020-02-11T17:14:33.873Z\"),\n \"creationExecStats\" : [\n {\n \"nReturned\" : 2,\n \"executionTimeMillisEstimate\" : 0,\n \"totalKeysExamined\" : 3,\n \"totalDocsExamined\" : 3,\n \"executionStages\" : {\n \"stage\" : \"FETCH\",\n \"filter\" : {\n \"type\" : {\n \"$eq\" : \"apparel\"\n }\n },\n \"nReturned\" : 2,\n \"executionTimeMillisEstimate\" : 0,\n \"works\" : 4,\n \"advanced\" : 2,\n \"needTime\" : 1,\n \"needYield\" : 0,\n \"saveState\" : 0,\n \"restoreState\" : 0,\n \"isEOF\" : 1,\n \"docsExamined\" : 3,\n \"alreadyHasObj\" : 0,\n \"inputStage\" : {\n \"stage\" : \"IXSCAN\",\n \"nReturned\" : 3,\n \"executionTimeMillisEstimate\" : 0,\n \"works\" : 4,\n \"advanced\" : 3,\n \"needTime\" : 0,\n \"needYield\" : 0,\n \"saveState\" : 0,\n \"restoreState\" : 0,\n \"isEOF\" : 1,\n \"keyPattern\" : {\n \"quantity\" : 1\n },\n \"indexName\" : \"quantity_1\",\n \"isMultiKey\" : false,\n \"multiKeyPaths\" : {\n \"quantity\" : [ ]\n },\n \"isUnique\" : false,\n \"isSparse\" : false,\n \"isPartial\" : false,\n \"indexVersion\" : 2,\n \"direction\" : \"forward\",\n \"indexBounds\" : {\n \"quantity\" : [\n \"[5.0, inf.0]\"\n ]\n },\n \"keysExamined\" : 3,\n \"seeks\" : 1,\n \"dupsTested\" : 0,\n \"dupsDropped\" : 0\n }\n }\n },\n {\n \"nReturned\" : 2,\n \"executionTimeMillisEstimate\" : 0,\n \"totalKeysExamined\" : 3,\n \"totalDocsExamined\" : 2,\n \"executionStages\" : {\n \"stage\" : \"FETCH\",\n \"nReturned\" : 2,\n \"executionTimeMillisEstimate\" : 0,\n \"works\" : 4,\n \"advanced\" : 2,\n \"needTime\" : 1,\n \"needYield\" : 0,\n \"saveState\" : 0,\n \"restoreState\" : 0,\n \"isEOF\" : 1,\n \"docsExamined\" : 2,\n \"alreadyHasObj\" : 0,\n \"inputStage\" : {\n \"stage\" : \"IXSCAN\",\n \"nReturned\" : 2,\n \"executionTimeMillisEstimate\" : 0,\n \"works\" : 4,\n \"advanced\" : 2,\n \"needTime\" : 1,\n \"needYield\" : 0,\n \"saveState\" : 0,\n \"restoreState\" : 0,\n \"isEOF\" : 1,\n \"keyPattern\" : {\n \"quantity\" : 1,\n \"type\" : 1\n },\n \"indexName\" : \"quantity_1_type_1\",\n \"isMultiKey\" : false,\n \"multiKeyPaths\" : {\n \"quantity\" : [ ],\n \"type\" : [ ]\n },\n \"isUnique\" : false,\n \"isSparse\" : false,\n \"isPartial\" : false,\n \"indexVersion\" : 2,\n \"direction\" : \"forward\",\n \"indexBounds\" : {\n \"quantity\" : [\n \"[5.0, inf.0]\"\n ],\n \"type\" : [\n \"[\\\"apparel\\\", \\\"apparel\\\"]\"\n ]\n },\n \"keysExamined\" : 3,\n \"seeks\" : 2,\n \"dupsTested\" : 0,\n \"dupsDropped\" : 0\n }\n }\n }\n ],\n \"candidatePlanScores\" : [\n 1.5002,\n 1.5002\n ],\n \"indexFilterSet\" : false,\n \"estimatedSizeBytes\" : NumberLong(3160), // Available starting in MongoDB 5.0\n \"host\" : \"mongodb1.example.net:27018\",\n \"shard\" : \"shardA\" // Available if run on sharded cluster\n }\n]","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"createdFromQuery"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"query"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"quantity"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"$gte"</span> <!-- -->: <span class="lg-highlight-number">5</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"type"</span> <!-- -->: <span class="lg-highlight-string">"apparel"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"sort"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"projection"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->}</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"planCacheShapeHash"</span> <!-- -->: <span class="lg-highlight-string">"4D151C4C"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"planCacheKey"</span> <!-- -->: <span class="lg-highlight-string">"DD67E353"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"isActive"</span> <!-- -->: <span class="lg-highlight-literal">false</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"works"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">NumberLong</span>(<span class="lg-highlight-number">4</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"cachedPlan"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"stage"</span> <!-- -->: <span class="lg-highlight-string">"FETCH"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"filter"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"type"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"$eq"</span> <!-- -->: <span class="lg-highlight-string">"apparel"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"inputStage"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"stage"</span> <!-- -->: <span class="lg-highlight-string">"IXSCAN"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"keyPattern"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"quantity"</span> <!-- -->: <span class="lg-highlight-number">1</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"indexName"</span> <!-- -->: <span class="lg-highlight-string">"quantity_1"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"isMultiKey"</span> <!-- -->: <span class="lg-highlight-literal">false</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"multiKeyPaths"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"quantity"</span> <!-- -->: <!-- -->[ <!-- -->]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"isUnique"</span> <!-- -->: <span class="lg-highlight-literal">false</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"isSparse"</span> <!-- -->: <span class="lg-highlight-literal">false</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"isPartial"</span> <!-- -->: <span class="lg-highlight-literal">false</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"indexVersion"</span> <!-- -->: <span class="lg-highlight-number">2</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"direction"</span> <!-- -->: <span class="lg-highlight-string">"forward"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"indexBounds"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"quantity"</span> <!-- -->: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"[5.0, inf.0]"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"timeOfCreation"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-02-11T17:14:33.873Z"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"creationExecStats"</span> <!-- -->: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"nReturned"</span> <!-- -->: <span class="lg-highlight-number">2</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"executionTimeMillisEstimate"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"totalKeysExamined"</span> <!-- -->: <span class="lg-highlight-number">3</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"totalDocsExamined"</span> <!-- -->: <span class="lg-highlight-number">3</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"executionStages"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"stage"</span> <!-- -->: <span class="lg-highlight-string">"FETCH"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"filter"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"type"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"$eq"</span> <!-- -->: <span class="lg-highlight-string">"apparel"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"nReturned"</span> <!-- -->: <span class="lg-highlight-number">2</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"executionTimeMillisEstimate"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"works"</span> <!-- -->: <span class="lg-highlight-number">4</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"advanced"</span> <!-- -->: <span class="lg-highlight-number">2</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"needTime"</span> <!-- -->: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"needYield"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"saveState"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"restoreState"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"isEOF"</span> <!-- -->: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"docsExamined"</span> <!-- -->: <span class="lg-highlight-number">3</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"alreadyHasObj"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"inputStage"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"stage"</span> <!-- -->: <span class="lg-highlight-string">"IXSCAN"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"nReturned"</span> <!-- -->: <span class="lg-highlight-number">3</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"executionTimeMillisEstimate"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"works"</span> <!-- -->: <span class="lg-highlight-number">4</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"advanced"</span> <!-- -->: <span class="lg-highlight-number">3</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"needTime"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"needYield"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"saveState"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"restoreState"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"isEOF"</span> <!-- -->: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"keyPattern"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"quantity"</span> <!-- -->: <span class="lg-highlight-number">1</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"indexName"</span> <!-- -->: <span class="lg-highlight-string">"quantity_1"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"isMultiKey"</span> <!-- -->: <span class="lg-highlight-literal">false</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"multiKeyPaths"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"quantity"</span> <!-- -->: <!-- -->[ <!-- -->]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"isUnique"</span> <!-- -->: <span class="lg-highlight-literal">false</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"isSparse"</span> <!-- -->: <span class="lg-highlight-literal">false</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"isPartial"</span> <!-- -->: <span class="lg-highlight-literal">false</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"indexVersion"</span> <!-- -->: <span class="lg-highlight-number">2</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"direction"</span> <!-- -->: <span class="lg-highlight-string">"forward"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"indexBounds"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"quantity"</span> <!-- -->: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"[5.0, inf.0]"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"keysExamined"</span> <!-- -->: <span class="lg-highlight-number">3</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"seeks"</span> <!-- -->: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"dupsTested"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"dupsDropped"</span> <!-- -->: <span class="lg-highlight-number">0</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"nReturned"</span> <!-- -->: <span class="lg-highlight-number">2</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"executionTimeMillisEstimate"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"totalKeysExamined"</span> <!-- -->: <span class="lg-highlight-number">3</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"totalDocsExamined"</span> <!-- -->: <span class="lg-highlight-number">2</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"executionStages"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"stage"</span> <!-- -->: <span class="lg-highlight-string">"FETCH"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"nReturned"</span> <!-- -->: <span class="lg-highlight-number">2</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"executionTimeMillisEstimate"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"works"</span> <!-- -->: <span class="lg-highlight-number">4</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"advanced"</span> <!-- -->: <span class="lg-highlight-number">2</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"needTime"</span> <!-- -->: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"needYield"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"saveState"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"restoreState"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"isEOF"</span> <!-- -->: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"docsExamined"</span> <!-- -->: <span class="lg-highlight-number">2</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"alreadyHasObj"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"inputStage"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"stage"</span> <!-- -->: <span class="lg-highlight-string">"IXSCAN"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"nReturned"</span> <!-- -->: <span class="lg-highlight-number">2</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"executionTimeMillisEstimate"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"works"</span> <!-- -->: <span class="lg-highlight-number">4</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"advanced"</span> <!-- -->: <span class="lg-highlight-number">2</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"needTime"</span> <!-- -->: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"needYield"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"saveState"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"restoreState"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"isEOF"</span> <!-- -->: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"keyPattern"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"quantity"</span> <!-- -->: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"type"</span> <!-- -->: <span class="lg-highlight-number">1</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"indexName"</span> <!-- -->: <span class="lg-highlight-string">"quantity_1_type_1"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"isMultiKey"</span> <!-- -->: <span class="lg-highlight-literal">false</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"multiKeyPaths"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"quantity"</span> <!-- -->: <!-- -->[ <!-- -->]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"type"</span> <!-- -->: <!-- -->[ <!-- -->]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"isUnique"</span> <!-- -->: <span class="lg-highlight-literal">false</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"isSparse"</span> <!-- -->: <span class="lg-highlight-literal">false</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"isPartial"</span> <!-- -->: <span class="lg-highlight-literal">false</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"indexVersion"</span> <!-- -->: <span class="lg-highlight-number">2</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"direction"</span> <!-- -->: <span class="lg-highlight-string">"forward"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"indexBounds"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"quantity"</span> <!-- -->: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"[5.0, inf.0]"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"type"</span> <!-- -->: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"[</span><span class="lg-highlight-string">\"</span><span class="lg-highlight-string">apparel</span><span class="lg-highlight-string">\"</span><span class="lg-highlight-string">, </span><span class="lg-highlight-string">\"</span><span class="lg-highlight-string">apparel</span><span class="lg-highlight-string">\"</span><span class="lg-highlight-string">]"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"keysExamined"</span> <!-- -->: <span class="lg-highlight-number">3</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"seeks"</span> <!-- -->: <span class="lg-highlight-number">2</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"dupsTested"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"dupsDropped"</span> <!-- -->: <span class="lg-highlight-number">0</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"candidatePlanScores"</span> <!-- -->: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-number">1.5002</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-number">1.5002</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"indexFilterSet"</span> <!-- -->: <span class="lg-highlight-literal">false</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"estimatedSizeBytes"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">NumberLong</span>(<span class="lg-highlight-number">3160</span>)<!-- -->, <span class="lg-highlight-comment">//</span><span class="lg-highlight-comment"> Available starting in </span><span class="lg-highlight-comment">MongoDB 5.0</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"host"</span> <!-- -->: <span class="lg-highlight-string">"mongodb1.example.net:27018"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"shard"</span> <!-- -->: <span class="lg-highlight-string">"shardA"</span> <span class="lg-highlight-comment">//</span><span class="lg-highlight-comment"> Available if run </span><span class="lg-highlight-comment">on sharded cluster</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">]</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
<div class="leafygreen-ui-1sjx7ru" role="note">
<h2 class="leafygreen-ui-29m78u">
Warning
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 8.0, the pre-existing
<code class="leafygreen-ui-1l06pbn">
queryHash
</code>
field is renamed
to
<code class="leafygreen-ui-1l06pbn">
planCacheShapeHash
</code>
. If you're using an earlier MongoDB version,
you'll see
<code class="leafygreen-ui-1l06pbn">
queryHash
</code>
instead of
<code class="leafygreen-ui-1l06pbn">
planCacheShapeHash
</code>
.
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
For details on the output, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/planCacheStats/#std-label-planCacheStats-output">
$planCacheStats output
<!-- -->
.
</a>
</p>
</section>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/command/resetError/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
resetError
<a class="headerlink leafygreen-ui-1kepx47" href="#reseterror" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="reseterror">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#compatibility" target="_self">
<span>
Compatibility
</span>
</a>
</li>
</ul>
</div>
<dl class="dbcommand">
<dt>
<code class="leafygreen-ui-1l06pbn">
resetError
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-dbcommand-dbcmd.resetError" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-dbcommand-dbcmd.resetError">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
<em>
Removed in MongoDB 5.0.
</em>
</p>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.resetError" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
resetError
</code>
</span>
</a>
command resets the last error status.
</p>
</dd>
</dl>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.resetError/#mongodb-method-db.resetError">
<code class="leafygreen-ui-1l06pbn">
db.resetError()
</code>
</a>
(
<em>
also removed in MongoDB 5.0
</em>
)
</p>
</div>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Compatibility
<a class="headerlink leafygreen-ui-1kepx47" href="#compatibility" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="compatibility">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
This command is available in deployments hosted in the following environments:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/install-enterprise/#std-label-install-mdb-enterprise">
MongoDB Enterprise
</a>
: The
subscription-based, self-managed version of MongoDB
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/install-community/#std-label-install-mdb-community-edition">
MongoDB Community
</a>
: The
source-available, free-to-use, and self-managed version of MongoDB
</p>
</li>
</ul>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
This command is not supported in MongoDB Atlas clusters.
For information on Atlas support for all commands,
see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/unsupported-commands/" target="_self">
<span>
Unsupported Commands
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
</section>
</section>
|
https://www.mongodb.com/docs/manual/tutorial/install-mongodb-enterprise-on-os-x/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Install MongoDB Enterprise on macOS
<a class="headerlink leafygreen-ui-1kepx47" href="#install-mongodb-enterprise-on-macos" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="install-mongodb-enterprise-on-macos">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#overview" target="_self">
<span>
Overview
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#considerations" target="_self">
<span>
Considerations
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#install-mongodb-enterprise-edition" target="_self">
<span>
Install MongoDB Enterprise Edition
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#run-mongodb-enterprise-edition" target="_self">
<span>
Run MongoDB Enterprise Edition
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#additional-information" target="_self">
<span>
Additional Information
</span>
</a>
</li>
</ul>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Overview
<a class="headerlink leafygreen-ui-1kepx47" href="#overview" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="overview">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
Use this tutorial to manually install MongoDB 8.0
<!-- -->
Enterprise
<!-- -->
Edition on macOS using a downloaded
<code class="leafygreen-ui-1l06pbn">
.tgz
</code>
tarball.
</p>
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/products/mongodb-enterprise-advanced?tck=docs_server" target="_self">
<span>
MongoDB Enterprise Edition
</span>
</a>
is available on select platforms and contains support for several
features related to security and monitoring.
</p>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
MongoDB Version
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-version" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-version">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
This tutorial installs MongoDB 8.0
<!-- -->
Enterprise
<!-- -->
Edition. To install a different version of MongoDB
<!-- -->
Enterprise
<!-- -->
,
use the version drop-down menu in the upper-left corner of this page to
select the documentation for that version.
</p>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Considerations
<a class="headerlink leafygreen-ui-1kepx47" href="#considerations" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="considerations">
</div>
</a>
</h2>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
MongoDB Shell,
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-shell--mongosh" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-shell--mongosh">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
When you use the
<code class="leafygreen-ui-1l06pbn">
.tgz
</code>
package to install the server, you need to
follow the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/install/" target="_self">
<span>
mongosh installation instructions
</span>
</a>
to
download and install
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/" target="_self">
<span>
mongosh
</span>
</a>
separately.
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Platform Support
<a class="headerlink leafygreen-ui-1kepx47" href="#platform-support" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="platform-support">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
MongoDB 8.0 Enterprise Edition supports macOS 11 or later.
</p>
<p class="leafygreen-ui-1kp3ins">
For more information, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/production-notes/#std-label-prod-notes-supported-platforms">
Platform Support
<!-- -->
.
</a>
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Production Notes
<a class="headerlink leafygreen-ui-1kepx47" href="#production-notes" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="production-notes">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Before deploying MongoDB in a production environment, consider the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/production-notes/">
Production Notes for Self-Managed Deployments
</a>
document which offers
performance considerations and configuration recommendations for
production MongoDB deployments.
</p>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Install MongoDB Enterprise Edition
<a class="headerlink leafygreen-ui-1kepx47" href="#install-mongodb-enterprise-edition" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="install-mongodb-enterprise-edition">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
To manually install MongoDB
<!-- -->
Enterprise
<!-- -->
Edition from the
<code class="leafygreen-ui-1l06pbn">
.tgz
</code>
, select the tab
that corresponds with your Mac's processor and complete the following steps:
</p>
<div aria-hidden="true">
</div>
<div class="leafygreen-ui-1b75luy" data-lgid="lg-tabs">
<div class="leafygreen-ui-jp7pox" id="tabs-17">
<div aria-label="Tabs to describe usage of apple/intel" aria-orientation="horizontal" class="leafygreen-ui-m8p1vb lg-ui-tab-list-0000" data-lgid="lg-tabs-tab_list" role="tablist">
<button aria-controls="_wxu46v185" aria-selected="true" class="leafygreen-ui-1l773z1" data-text="" id="_5mykawl79" name="" role="tab" tabindex="0">
<div class="leafygreen-ui-1nxuzmg">
Intel
</div>
</button>
<button aria-controls="_fgonexd39" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_82rmjfgmz" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Apple Silicon
</div>
</button>
</div>
<div class="leafygreen-ui-ov1ktg">
<div class="leafygreen-ui-1sg2lsz">
</div>
</div>
</div>
<div class="lg-ui-tab-panels-0000" data-lgid="lg-tabs-tab_panels">
<div>
<div aria-labelledby="_0cbe4xqpc" class="" id="_8pll15pfe" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<script class="structured_data" type="application/ld+json">
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1
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<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Download the tarball.
<a class="headerlink leafygreen-ui-1kepx47" href="#download-the-tarball." title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="download-the-tarball.">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Download the MongoDB
<!-- -->
Enterprise
<!-- -->
<code class="leafygreen-ui-1l06pbn">
tgz
</code>
tarball from the following link:
</p>
<p class="leafygreen-ui-1kp3ins">
➤
<!-- -->
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/try/download/enterprise?tck=docs_server" target="_self">
<span>
MongoDB Download Center
</span>
</a>
</p>
<ol class="leafygreen-ui-rioki0" type="a">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
In the
<span class="guilabel css-h15tq0">
Version
</span>
dropdown, select the version of MongoDB
to download.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
In the
<span class="guilabel css-h15tq0">
Platform
</span>
dropdown, select
<span class="guilabel css-h15tq0">
macOS ARM 64
</span>
.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
In the
<span class="guilabel css-h15tq0">
Package
</span>
dropdown, select
<span class="guilabel css-h15tq0">
tgz
</span>
.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Click
<span class="guilabel css-h15tq0">
Download
</span>
.
</p>
</li>
</ol>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
2
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Extract the files from the downloaded archive.
<a class="headerlink leafygreen-ui-1kepx47" href="#extract-the-files-from-the-downloaded-archive." title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="extract-the-files-from-the-downloaded-archive.">
</div>
</a>
</h3>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"tar -zxvf mongodb-macos-x86_64-enterprise-8.0.tgz","programmingLanguage":"Shell"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light shell leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">tar -zxvf mongodb-macos-x86_64-enterprise-8.0.tgz</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
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<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
If your web browser automatically unzips the file as part of the download, the
file ends in
<code class="leafygreen-ui-1l06pbn">
.tar
</code>
instead.
</p>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
3
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Ensure the binaries are in a directory listed in your
<code class="leafygreen-ui-1l06pbn">
PATH
</code>
environment variable.
<a class="headerlink leafygreen-ui-1kepx47" href="#ensure-the-binaries-are-in-a-directory-listed-in-your-path-environment-variable." title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="ensure-the-binaries-are-in-a-directory-listed-in-your-path-environment-variable.">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The MongoDB binaries are in the
<code class="leafygreen-ui-1l06pbn">
bin/
</code>
directory of the tarball. You can
either:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Copy the binaries into a directory listed in your
<code class="leafygreen-ui-1l06pbn">
PATH
</code>
variable, such as
<code class="leafygreen-ui-1l06pbn">
/usr/local/bin
</code>
. Replace
<code class="leafygreen-ui-1l06pbn">
/path/to/the/mongodb-directory/
</code>
with your
installation directory.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"sudo cp /path/to/the/mongodb-directory/bin/* /usr/local/bin/","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">sudo <span class="lg-highlight-built_in">cp</span> <!-- -->/path/to/the/mongodb-directory/bin<!-- -->/* <!-- -->/usr/local/bin<!-- -->/</td></tr></tbody></table></code></pre>
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Create symbolic links to the binaries from a directory listed in your
<code class="leafygreen-ui-1l06pbn">
PATH
</code>
variable, such as
<code class="leafygreen-ui-1l06pbn">
/usr/local/bin
</code>
. Replace
<code class="leafygreen-ui-1l06pbn">
/path/to/the/mongodb-directory/
</code>
with your installation directory.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"sudo ln -s /path/to/the/mongodb-directory/bin/* /usr/local/bin/","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">sudo <span class="lg-highlight-built_in">ln</span> -s <!-- -->/path/to/the/mongodb-directory/bin<!-- -->/* <!-- -->/usr/local/bin<!-- -->/</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
</ul>
</section>
</div>
</div>
</div>
</div>
</div>
</div>
<div>
<div aria-labelledby="_xycd9zphe" class="leafygreen-ui-38lglc" id="_nfc395vti" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"HowTo","steps":[{"@type":"HowToStep","text":"Download the MongoDB Enterprise tgz tarball from the following link:➤ MongoDB Download CenterIn the Version dropdown, select the version of MongoDB\nto download.In the Platform dropdown, select macOS ARM 64.In the Package dropdown, select tgz.Click Download.","name":"Download the tarball."},{"@type":"HowToStep","text":"If your web browser automatically unzips the file as part of the download, the\nfile ends in .tar instead.","name":"Extract the files from the downloaded archive."},{"@type":"HowToStep","text":"The MongoDB binaries are in the bin/ directory of the tarball. You can\neither:Copy the binaries into a directory listed in your PATH variable, such as\n/usr/local/bin. Replace /path/to/the/mongodb-directory/ with your\ninstallation directory.Create symbolic links to the binaries from a directory listed in your PATH\nvariable, such as /usr/local/bin. Replace\n/path/to/the/mongodb-directory/ with your installation directory.","name":"Ensure the binaries are in a directory listed in your PATH environment variable."}],"name":"Install MongoDB Enterprise Edition - Apple Silicon","image":"https://webimages.mongodb.com/_com_assets/cms/kuyj2focmkbxv7gh3-stacked_default_slate_blue.svg?auto=format%252Ccompress"}
</script>
<div class="css-4nyere eccljxs0">
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
1
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Download the tarball.
<a class="headerlink leafygreen-ui-1kepx47" href="#download-the-tarball.-1" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="download-the-tarball.-1">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Download the MongoDB
<!-- -->
Enterprise
<!-- -->
<code class="leafygreen-ui-1l06pbn">
tgz
</code>
tarball from the following link:
</p>
<p class="leafygreen-ui-1kp3ins">
➤
<!-- -->
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/try/download/enterprise?tck=docs_server" target="_self">
<span>
MongoDB Download Center
</span>
</a>
</p>
<ol class="leafygreen-ui-rioki0" type="a">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
In the
<span class="guilabel css-h15tq0">
Version
</span>
dropdown, select the version of MongoDB
to download.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
In the
<span class="guilabel css-h15tq0">
Platform
</span>
dropdown, select
<span class="guilabel css-h15tq0">
macOS ARM 64
</span>
.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
In the
<span class="guilabel css-h15tq0">
Package
</span>
dropdown, select
<span class="guilabel css-h15tq0">
tgz
</span>
.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Click
<span class="guilabel css-h15tq0">
Download
</span>
.
</p>
</li>
</ol>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
2
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Extract the files from the downloaded archive.
<a class="headerlink leafygreen-ui-1kepx47" href="#extract-the-files-from-the-downloaded-archive.-1" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
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</div>
</a>
</h3>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"tar -zxvf mongodb-macos-arm64-enterprise-8.0.tgz","programmingLanguage":"Shell"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light shell leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">tar -zxvf mongodb-macos-arm64-enterprise-8.0.tgz</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
If your web browser automatically unzips the file as part of the download, the
file ends in
<code class="leafygreen-ui-1l06pbn">
.tar
</code>
instead.
</p>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
3
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Ensure the binaries are in a directory listed in your
<code class="leafygreen-ui-1l06pbn">
PATH
</code>
environment variable.
<a class="headerlink leafygreen-ui-1kepx47" href="#ensure-the-binaries-are-in-a-directory-listed-in-your-path-environment-variable.-1" title="Permalink to this heading">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="ensure-the-binaries-are-in-a-directory-listed-in-your-path-environment-variable.-1">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The MongoDB binaries are in the
<code class="leafygreen-ui-1l06pbn">
bin/
</code>
directory of the tarball. You can
either:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Copy the binaries into a directory listed in your
<code class="leafygreen-ui-1l06pbn">
PATH
</code>
variable, such as
<code class="leafygreen-ui-1l06pbn">
/usr/local/bin
</code>
. Replace
<code class="leafygreen-ui-1l06pbn">
/path/to/the/mongodb-directory/
</code>
with your
installation directory.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"sudo cp /path/to/the/mongodb-directory/bin/* /usr/local/bin/","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">sudo <span class="lg-highlight-built_in">cp</span> <!-- -->/path/to/the/mongodb-directory/bin<!-- -->/* <!-- -->/usr/local/bin<!-- -->/</td></tr></tbody></table></code></pre>
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</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Create symbolic links to the binaries from a directory listed in your
<code class="leafygreen-ui-1l06pbn">
PATH
</code>
variable, such as
<code class="leafygreen-ui-1l06pbn">
/usr/local/bin
</code>
. Replace
<code class="leafygreen-ui-1l06pbn">
/path/to/the/mongodb-directory/
</code>
with your installation directory.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"sudo ln -s /path/to/the/mongodb-directory/bin/* /usr/local/bin/","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">sudo <span class="lg-highlight-built_in">ln</span> -s <!-- -->/path/to/the/mongodb-directory/bin<!-- -->/* <!-- -->/usr/local/bin<!-- -->/</td></tr></tbody></table></code></pre>
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</section>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Run MongoDB Enterprise Edition
<a class="headerlink leafygreen-ui-1kepx47" href="#run-mongodb-enterprise-edition" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="run-mongodb-enterprise-edition">
</div>
</a>
</h2>
<dl>
<dt>
ulimit Considerations
</dt>
<dd class="css-1ufxuu7">
Most Unix-like operating systems limit the system resources that a
process may use. These limits may negatively impact MongoDB operation,
and should be adjusted. See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/ulimit/">
UNIX
<code class="leafygreen-ui-1l06pbn">
ulimit
</code>
Settings for Self-Managed Deployments
</a>
for the recommended
settings for your platform.
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
If the
<code class="leafygreen-ui-1l06pbn">
ulimit
</code>
value for number of open files is under
<code class="leafygreen-ui-1l06pbn">
64000
</code>
, MongoDB
generates a startup warning.
</div>
</div>
</dd>
</dl>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Procedure
<a class="headerlink leafygreen-ui-1kepx47" href="#procedure" title="Permalink to this heading">
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<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="procedure">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Follow these steps to run MongoDB
<!-- -->
Enterprise
<!-- -->
Edition. These instructions
assume that you are using the default settings.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"HowTo","steps":[{"@type":"HowToStep","text":"Create the data directory.Before you start MongoDB for the first time, you must create the\ndirectory to which the mongod process will write data.For example, to create the ~/data/db directory:"},{"@type":"HowToStep","text":"Create the log directory.You must also create the directory in which the mongod process\nwill write its log file:For example, to create the ~/data/log/mongodb directory:"},{"@type":"HowToStep","text":"Set permissions for the data and log directories.Ensure that the user account running mongod has read\nand write permissions for these two directories. If you are running\nmongod as your own user account, and you just created\nthe two directories above, they should already accessible to your\nuser. Otherwise, you can use chown to set ownership,\nsubstituting the appropriate user:"},{"@type":"HowToStep","text":"Run MongoDB.To run MongoDB, run the mongod process at the system\nprompt, providing the two parameters dbpath and logpath\nfrom above, and the fork parameter to run mongod\nin the background. Alternatively, you may choose to store the values\nfor dbpath, logpath, fork, and many other parameters in a\nconfiguration file.Run mongod with command-line parametersRun the mongod process at the system prompt,\nproviding the three necessary parameters directly on the\ncommand-line:Run mongod with a configuration fileRun the mongod process at the system prompt,\nproviding the path to a\nconfiguration file\nwith the config parameter:macOS may prevent mongod from running after installation. If\nyou receive a security error when starting mongod\nindicating that the developer could not be identified or verified,\ndo the following to grant mongod access to run:Open System PreferencesSelect the Security and Privacy pane.Under the General tab, click the button to the right of the\nmessage about mongod, labelled either Open\nAnyway or Allow Anyway depending on your version of\nmacOS."},{"@type":"HowToStep","text":"Verify that MongoDB has started successfully.Verify that MongoDB has started successfully:If you do not see a mongod process running, check the logfile for\nany error messages."},{"@type":"HowToStep","text":"Begin using MongoDB.Start a mongosh session on the same host machine as the\nmongod. You can run mongosh\nwithout any command-line options to connect to a\nmongod that is running on your localhost with the\ndefault port of 27017:For more information on connecting using mongosh,\nsuch as to connect to a mongod instance running\non a different host and/or port, see the\nmongosh documentation.To help you start using MongoDB, MongoDB provides Getting\nStarted Guides in various driver editions. See\nGetting Started with MongoDB for the available editions."}],"name":"Procedure","image":"https://webimages.mongodb.com/_com_assets/cms/kuyj2focmkbxv7gh3-stacked_default_slate_blue.svg?auto=format%252Ccompress"}
</script>
<div class="css-4nyere eccljxs0">
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
1
</div>
</div>
<div class="css-1ed38mk">
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Create the data directory.
<a class="headerlink leafygreen-ui-1kepx47" href="#create-the-data-directory" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="create-the-data-directory">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
Before you start MongoDB for the first time, you must create the
directory to which the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
process will write data.
</p>
<p class="leafygreen-ui-1kp3ins">
For example, to create the
<code class="leafygreen-ui-1l06pbn">
~/data/db
</code>
directory:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"sudo mkdir -p ~/data/db\n","programmingLanguage":"Shell"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light shell leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">sudo mkdir -p ~/data/db</td></tr></tbody></table></code></pre>
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2
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</div>
<div class="css-1ed38mk">
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Create the log directory.
<a class="headerlink leafygreen-ui-1kepx47" href="#create-the-log-directory" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="create-the-log-directory">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
You must also create the directory in which the
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
process
will write its log file:
</p>
<p class="leafygreen-ui-1kp3ins">
For example, to create the
<code class="leafygreen-ui-1l06pbn">
~/data/log/mongodb
</code>
directory:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"sudo mkdir -p ~/data/log/mongodb\n","programmingLanguage":"Shell"}
</script>
<div class="css-16lmvu9">
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light shell leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">sudo mkdir -p ~/data/log/mongodb</td></tr></tbody></table></code></pre>
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3
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</div>
<div class="css-1ed38mk">
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Set permissions for the data and log directories.
<a class="headerlink leafygreen-ui-1kepx47" href="#set-permissions-for-the-data-and-log-directories" title="Permalink to this heading">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="set-permissions-for-the-data-and-log-directories">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
Ensure that the user account running
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
has read
and write permissions for these two directories. If you are running
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
as your own user account, and you just created
the two directories above, they should already accessible to your
user. Otherwise, you can use
<code class="leafygreen-ui-1l06pbn">
chown
</code>
to set ownership,
substituting the appropriate
<em>
user
</em>
:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"sudo chown <user> ~/data/db\nsudo chown <user> ~/data/log/mongodb\n","programmingLanguage":"Shell"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light shell leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">sudo chown <user> ~/data/db</td></tr><tr class=""><td class="leafygreen-ui-7razhx">sudo chown <user> ~/data/log/mongodb</td></tr></tbody></table></code></pre>
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4
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</div>
<div class="css-1ed38mk">
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Run MongoDB.
<a class="headerlink leafygreen-ui-1kepx47" href="#run-mongodb" title="Permalink to this heading">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="run-mongodb">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
To run MongoDB, run the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
process at the system
prompt, providing the two parameters
<code class="leafygreen-ui-1l06pbn">
dbpath
</code>
and
<code class="leafygreen-ui-1l06pbn">
logpath
</code>
from above, and the
<code class="leafygreen-ui-1l06pbn">
fork
</code>
parameter to run
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
in the background. Alternatively, you may choose to store the values
for
<code class="leafygreen-ui-1l06pbn">
dbpath
</code>
,
<code class="leafygreen-ui-1l06pbn">
logpath
</code>
,
<code class="leafygreen-ui-1l06pbn">
fork
</code>
, and many other parameters in a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#std-label-configuration-options">
configuration file
<!-- -->
.
</a>
</p>
<section>
<h5 class="contains-headerlink leafygreen-ui-1vzlt5f">
Run
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
with command-line parameters
<a class="headerlink leafygreen-ui-1kepx47" href="#run-mongod-with-command-line-parameters" title="Permalink to this heading">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="run-mongod-with-command-line-parameters">
</div>
</a>
</h5>
<p class="leafygreen-ui-1kp3ins">
Run the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
process at the system prompt,
providing the three necessary parameters directly on the
command-line:
</p>
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{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"mongod --dbpath ~/data/db --logpath ~/data/log/mongodb/mongo.log --fork\n","programmingLanguage":"Shell"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light shell leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">mongod --dbpath ~/data/db --logpath ~/data/log/mongodb/mongo.log --fork</td></tr></tbody></table></code></pre>
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</section>
<section>
<h5 class="contains-headerlink leafygreen-ui-1vzlt5f">
Run
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
with a configuration file
<a class="headerlink leafygreen-ui-1kepx47" href="#run-mongod-with-a-configuration-file" title="Permalink to this heading">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="run-mongod-with-a-configuration-file">
</div>
</a>
</h5>
<p class="leafygreen-ui-1kp3ins">
Run the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
process at the system prompt,
providing the path to a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#std-label-configuration-options">
configuration file
</a>
with the
<code class="leafygreen-ui-1l06pbn">
config
</code>
parameter:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"mongod --config /usr/local/etc/mongod.conf\n","programmingLanguage":"Shell"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light shell leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">mongod --config /usr/local/etc/mongod.conf</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</section>
<p class="leafygreen-ui-1kp3ins">
macOS may prevent
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
from running after installation. If
you receive a security error when starting
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
indicating that the developer could not be identified or verified,
do the following to grant
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
access to run:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Open
<em>
System Preferences
</em>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Select the
<em>
Security and Privacy
</em>
pane.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Under the
<em>
General
</em>
tab, click the button to the right of the
message about
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
, labelled either
<span class="guilabel css-h15tq0">
Open
Anyway
</span>
or
<span class="guilabel css-h15tq0">
Allow Anyway
</span>
depending on your version of
macOS.
</p>
</li>
</ul>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
5
</div>
</div>
<div class="css-1ed38mk">
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Verify that MongoDB has started successfully.
<a class="headerlink leafygreen-ui-1kepx47" href="#verify-that-mongodb-has-started-successfully" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="verify-that-mongodb-has-started-successfully">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
Verify that MongoDB has started successfully:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"ps aux | grep -v grep | grep mongod\n"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light none leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">ps aux | grep -v grep | grep mongod</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
If you do not see a
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
process running, check the logfile for
any error messages.
</p>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
6
</div>
</div>
<div class="css-1ed38mk">
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Begin using MongoDB.
<a class="headerlink leafygreen-ui-1kepx47" href="#begin-using-mongodb" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="begin-using-mongodb">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
Start a
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
session on the same host machine as the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
. You can run
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
without any command-line options to connect to a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
that is running on your
<em>
localhost
</em>
with the
default port of
<em>
27017
</em>
:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"mongosh\n","programmingLanguage":"Shell"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light shell leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">mongosh</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
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<div class="leafygreen-ui-xhlipt">
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
For more information on connecting using
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
,
such as to connect to a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
instance running
on a different host and/or port, see the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/" target="_self">
<span>
mongosh documentation
<!-- -->
.
</span>
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
To help you start using MongoDB, MongoDB provides
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/getting-started/#std-label-getting-started">
Getting
Started Guides
</a>
in various driver editions. See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/getting-started/#std-label-getting-started">
Getting Started with MongoDB
</a>
for the available editions.
</p>
</section>
</div>
</div>
</div>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Additional Information
<a class="headerlink leafygreen-ui-1kepx47" href="#additional-information" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="additional-information">
</div>
</a>
</h2>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Localhost Binding by Default
<a class="headerlink leafygreen-ui-1kepx47" href="#localhost-binding-by-default" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="localhost-binding-by-default">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
By default, MongoDB launches with
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-net.bindIp">
<code class="leafygreen-ui-1l06pbn">
bindIp
</code>
</a>
set to
<code class="leafygreen-ui-1l06pbn">
127.0.0.1
</code>
, which binds to the localhost network interface. This
means that the
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
can only accept connections from
clients that are running on the same machine. Remote clients will not be
able to connect to the
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
, and the
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
will
not be able to initialize a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-replica-set">
replica set
</a>
unless this value is set
to a valid network interface.
</p>
<p class="leafygreen-ui-1kp3ins">
This value can be configured either:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
in the MongoDB configuration file with
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-net.bindIp">
<code class="leafygreen-ui-1l06pbn">
bindIp
</code>
</a>
, or
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
via the command-line argument
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#std-option-mongod.--bind_ip">
<code class="leafygreen-ui-1l06pbn">
--bind_ip
</code>
</a>
</p>
</li>
</ul>
<div class="leafygreen-ui-1sjx7ru" role="note">
<h2 class="leafygreen-ui-29m78u">
Warning
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Before you bind your instance to a publicly-accessible IP address,
you must secure your cluster from unauthorized access. For a complete
list of security recommendations, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/security-checklist/#std-label-security-checklist">
Security Checklist for Self-Managed Deployments
</a>
. At minimum, consider
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/security-checklist/#std-label-checklist-auth">
enabling authentication
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/security-hardening/#std-label-network-config-hardening">
hardening
network infrastructure
<!-- -->
.
</a>
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
For more information on configuring
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-net.bindIp">
<code class="leafygreen-ui-1l06pbn">
bindIp
</code>
</a>
, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/security-mongodb-configuration/">
IP Binding in Self-Managed Deployments
<!-- -->
.
</a>
</p>
</section>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/operator/aggregation/expMovingAvg/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
$expMovingAvg (aggregation)
<a class="headerlink leafygreen-ui-1kepx47" href="#-expmovingavg--aggregation-" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="-expmovingavg--aggregation-">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#definition" target="_self">
<span>
Definition
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#behavior" target="_self">
<span>
Behavior
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#examples" target="_self">
<span>
Examples
</span>
</a>
</li>
</ul>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Definition
<a class="headerlink leafygreen-ui-1kepx47" href="#definition" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="definition">
</div>
</a>
</h2>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
5.0
</em>
.
</p>
</div>
<dl class="group">
<dt>
<code class="leafygreen-ui-1l06pbn">
$expMovingAvg
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-group-grp.-expMovingAvg" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-group-grp.-expMovingAvg">
</div>
</a>
</dt>
<dd>
</dd>
</dl>
<p class="leafygreen-ui-1kp3ins">
Returns the exponential moving average of numeric
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/#std-label-aggregation-expressions">
expressions
</a>
applied to documents in a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/setWindowFields/#std-label-setWindowFields-partitionBy">
partition
</a>
defined in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/setWindowFields/#mongodb-pipeline-pipe.-setWindowFields">
<code class="leafygreen-ui-1l06pbn">
$setWindowFields
</code>
</a>
stage.
</p>
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-group-grp.-expMovingAvg" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$expMovingAvg
</code>
</span>
</a>
is only available in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/setWindowFields/#mongodb-pipeline-pipe.-setWindowFields">
<code class="leafygreen-ui-1l06pbn">
$setWindowFields
</code>
</a>
stage.
</p>
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-group-grp.-expMovingAvg" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$expMovingAvg
</code>
</span>
</a>
syntax:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n $expMovingAvg: {\n input: <input />,\n N: <integer>,\n alpha: <float>\n }\n}"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light none leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> $expMovingAvg: {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> input: <input expression>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> N: <integer>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> alpha: <float></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-group-grp.-expMovingAvg" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$expMovingAvg
</code>
</span>
</a>
takes a document with these fields:
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:15%"/>
<col style="width:85%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Field
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-expMovingAvg-input" target="_self">
<span>
input
</span>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-expMovingAvg-input">
</span>
<p class="leafygreen-ui-1kp3ins">
Specifies the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/#std-label-aggregation-expressions">
expression
</a>
to
evaluate. Non-numeric expressions are ignored.
</p>
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-expMovingAvg-N" target="_self">
<span>
N
</span>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-expMovingAvg-N">
</span>
<p class="leafygreen-ui-1kp3ins">
An
<code class="leafygreen-ui-1l06pbn">
integer
</code>
that specifies the number of historical documents
that have a significant mathematical weight in the exponential
moving average calculation, with the most recent documents
contributing the most weight.
</p>
<p class="leafygreen-ui-1kp3ins">
You must specify either
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-expMovingAvg-N" target="_self">
<span>
N
</span>
</a>
or
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-expMovingAvg-alpha" target="_self">
<span>
alpha
</span>
</a>
. You cannot specify both.
</p>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
N
</code>
value is used in this formula to calculate the current
result based on the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/#std-label-aggregation-expressions">
expression
</a>
value from the current document being read and the previous
result of the calculation:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"current result = current value * ( 2 / ( N + 1 ) ) +\n previous result * ( 1 - ( 2 / ( N + 1 ) ) )"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light none leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">current result = current value * ( 2 / ( N + 1 ) ) +</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> previous result * ( 1 - ( 2 / ( N + 1 ) ) )</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-expMovingAvg-alpha" target="_self">
<span>
alpha
</span>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-expMovingAvg-alpha">
</span>
<p class="leafygreen-ui-1kp3ins">
A
<code class="leafygreen-ui-1l06pbn">
double
</code>
that specifies the exponential decay value to use in
the exponential moving average calculation. A higher
<code class="leafygreen-ui-1l06pbn">
alpha
</code>
value assigns a lower mathematical significance to previous
results from the calculation.
</p>
<p class="leafygreen-ui-1kp3ins">
You must specify either
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-expMovingAvg-N" target="_self">
<span>
N
</span>
</a>
or
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-expMovingAvg-alpha" target="_self">
<span>
alpha
</span>
</a>
. You cannot specify both.
</p>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
alpha
</code>
value is used in this formula to calculate the
current result based on the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/#std-label-aggregation-expressions">
expression
</a>
value from the current document being
read and the previous result of the calculation:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"current result = current value * alpha +\n previous result * ( 1 - alpha )"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light none leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">current result = current value * alpha +</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> previous result * ( 1 - alpha )</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Behavior
<a class="headerlink leafygreen-ui-1kepx47" href="#behavior" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="behavior">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
You must specify either
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-expMovingAvg-N" target="_self">
<span>
N
</span>
</a>
or
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-expMovingAvg-alpha" target="_self">
<span>
alpha
</span>
</a>
. You cannot specify both.
</p>
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-group-grp.-expMovingAvg" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$expMovingAvg
</code>
</span>
</a>
ignores non-numeric values,
<code class="leafygreen-ui-1l06pbn">
null
</code>
values, and
missing fields.
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Examples
<a class="headerlink leafygreen-ui-1kepx47" href="#examples" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="examples">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
Create a
<code class="leafygreen-ui-1l06pbn">
stockPrices
</code>
collection that contains prices for stocks
named
<code class="leafygreen-ui-1l06pbn">
"MDB"
</code>
and
<code class="leafygreen-ui-1l06pbn">
"MSFT"
</code>
:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.stockPrices.insertMany( [\n { stock: \"MDB\", date: new Date( \"2020-05-18T20:00:00Z\" ), price: 13 },\n { stock: \"MDB\", date: new Date( \"2020-05-19T20:00:00Z\" ), price: 15.4 },\n { stock: \"MDB\", date: new Date( \"2020-05-20T20:00:00Z\" ), price: 12 },\n { stock: \"MDB\", date: new Date( \"2020-05-21T20:00:00Z\" ), price: 11.7 },\n { stock: \"MSFT\", date: new Date( \"2020-05-18T20:00:00Z\" ), price: 82 },\n { stock: \"MSFT\", date: new Date( \"2020-05-19T20:00:00Z\" ), price: 94 },\n { stock: \"MSFT\", date: new Date( \"2020-05-20T20:00:00Z\" ), price: 112 },\n { stock: \"MSFT\", date: new Date( \"2020-05-21T20:00:00Z\" ), price: 97.3 }\n] )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">stockPrices</span>.<span class="lg-highlight-title lg-highlight-function">insertMany</span>( <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">stock</span>: <span class="lg-highlight-string">"MDB"</span>, <span class="lg-highlight-attr">date</span>: <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Date</span>( <span class="lg-highlight-string">"2020-05-18T20:00:00Z"</span> )<!-- -->, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">13</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">stock</span>: <span class="lg-highlight-string">"MDB"</span>, <span class="lg-highlight-attr">date</span>: <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Date</span>( <span class="lg-highlight-string">"2020-05-19T20:00:00Z"</span> )<!-- -->, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">15.4</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">stock</span>: <span class="lg-highlight-string">"MDB"</span>, <span class="lg-highlight-attr">date</span>: <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Date</span>( <span class="lg-highlight-string">"2020-05-20T20:00:00Z"</span> )<!-- -->, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">12</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">stock</span>: <span class="lg-highlight-string">"MDB"</span>, <span class="lg-highlight-attr">date</span>: <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Date</span>( <span class="lg-highlight-string">"2020-05-21T20:00:00Z"</span> )<!-- -->, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">11.7</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">stock</span>: <span class="lg-highlight-string">"MSFT"</span>, <span class="lg-highlight-attr">date</span>: <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Date</span>( <span class="lg-highlight-string">"2020-05-18T20:00:00Z"</span> )<!-- -->, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">82</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">stock</span>: <span class="lg-highlight-string">"MSFT"</span>, <span class="lg-highlight-attr">date</span>: <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Date</span>( <span class="lg-highlight-string">"2020-05-19T20:00:00Z"</span> )<!-- -->, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">94</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">stock</span>: <span class="lg-highlight-string">"MSFT"</span>, <span class="lg-highlight-attr">date</span>: <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Date</span>( <span class="lg-highlight-string">"2020-05-20T20:00:00Z"</span> )<!-- -->, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">112</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">stock</span>: <span class="lg-highlight-string">"MSFT"</span>, <span class="lg-highlight-attr">date</span>: <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Date</span>( <span class="lg-highlight-string">"2020-05-21T20:00:00Z"</span> )<!-- -->, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">97.3</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">] )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</div>
</div>
</div>
</div>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Exponential Moving Average Using
<code class="leafygreen-ui-1l06pbn">
N
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#exponential-moving-average-using-n" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
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</svg>
<div class="css-1btu0w3 evvkmar0" id="exponential-moving-average-using-n">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
This example uses
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-group-grp.-expMovingAvg" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$expMovingAvg
</code>
</span>
</a>
in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/setWindowFields/#mongodb-pipeline-pipe.-setWindowFields">
<code class="leafygreen-ui-1l06pbn">
$setWindowFields
</code>
</a>
stage to output the exponential moving
average for the stock prices weighted for two historical documents (two
days for the example documents) using
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-expMovingAvg-N" target="_self">
<span>
N
</span>
</a>
set to
<code class="leafygreen-ui-1l06pbn">
2
</code>
:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.stockPrices.aggregate( [\n {\n $setWindowFields: {\n partitionBy: \"$stock\",\n sortBy: { date: 1 },\n output: {\n expMovingAvgForStock: {\n $expMovingAvg: { input: \"$price\", N: 2 }\n }\n }\n }\n }\n] )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">stockPrices</span>.<span class="lg-highlight-title lg-highlight-function">aggregate</span>( <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">$setWindowFields</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">partitionBy</span>: <span class="lg-highlight-string">"$stock"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">sortBy</span>: <!-- -->{ <span class="lg-highlight-attr">date</span>: <span class="lg-highlight-number">1</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">output</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">expMovingAvgForStock</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">$expMovingAvg</span>: <!-- -->{ <span class="lg-highlight-attr">input</span>: <span class="lg-highlight-string">"$price"</span>, <span class="lg-highlight-attr">N</span>: <span class="lg-highlight-number">2</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">] )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
In the example:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
partitionBy: "$stock"
</code>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/setWindowFields/#std-label-setWindowFields-partitionBy">
partitions
</a>
the documents in the collection by
<code class="leafygreen-ui-1l06pbn">
stock
</code>
. There are partitions for
<code class="leafygreen-ui-1l06pbn">
"MDB"
</code>
and
<code class="leafygreen-ui-1l06pbn">
"MSFT"
</code>
.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
sortBy: { date: 1 }
</code>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/setWindowFields/#std-label-setWindowFields-sortBy">
sorts
</a>
the documents in each partition by
<code class="leafygreen-ui-1l06pbn">
date
</code>
in ascending order (
<code class="leafygreen-ui-1l06pbn">
1
</code>
), so the earliest
<code class="leafygreen-ui-1l06pbn">
date
</code>
is first.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
output
</code>
returns the exponential moving average for the stock
<code class="leafygreen-ui-1l06pbn">
price
</code>
field with
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-expMovingAvg-N" target="_self">
<span>
N
</span>
</a>
set to
<code class="leafygreen-ui-1l06pbn">
2
</code>
:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
In the input documents, there is one document for each day
and the documents are ordered by
<code class="leafygreen-ui-1l06pbn">
date
</code>
. Therefore, with
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-expMovingAvg-N" target="_self">
<span>
N
</span>
</a>
is set to
<code class="leafygreen-ui-1l06pbn">
2
</code>
, the
<code class="leafygreen-ui-1l06pbn">
price
</code>
in the current
document and the
<code class="leafygreen-ui-1l06pbn">
price
</code>
in the previous document, if available,
are allocated the highest weight in the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-expMovingAvg-N" target="_self">
<span>
exponential moving
average formula
<!-- -->
.
</span>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The exponential moving average for the
<code class="leafygreen-ui-1l06pbn">
price
</code>
field is stored in
a new field called
<code class="leafygreen-ui-1l06pbn">
expMovingAvgForStocks
</code>
, as shown in the
following results.
</p>
</li>
</ul>
</li>
</ul>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ \"_id\" : ObjectId(\"60d11fef833dfeadc8e6286b\"), \"stock\" : \"MDB\",\n \"date\" : ISODate(\"2020-05-18T20:00:00Z\"), \"price\" : 13,\n \"expMovingAvgForStock\" : 13 }\n{ \"_id\" : ObjectId(\"60d11fef833dfeadc8e6286c\"), \"stock\" : \"MDB\",\n \"date\" : ISODate(\"2020-05-19T20:00:00Z\"), \"price\" : 15.4,\n \"expMovingAvgForStock\" : 14.6 }\n{ \"_id\" : ObjectId(\"60d11fef833dfeadc8e6286d\"), \"stock\" : \"MDB\",\n \"date\" : ISODate(\"2020-05-20T20:00:00Z\"), \"price\" : 12,\n \"expMovingAvgForStock\" : 12.866666666666667 }\n{ \"_id\" : ObjectId(\"60d11fef833dfeadc8e6286e\"), \"stock\" : \"MDB\",\n \"date\" : ISODate(\"2020-05-21T20:00:00Z\"), \"price\" : 11.7,\n \"expMovingAvgForStock\" : 12.088888888888889 }\n{ \"_id\" : ObjectId(\"60d11fef833dfeadc8e6286f\"), \"stock\" : \"MSFT\",\n \"date\" : ISODate(\"2020-05-18T20:00:00Z\"), \"price\" : 82,\n \"expMovingAvgForStock\" : 82 }\n{ \"_id\" : ObjectId(\"60d11fef833dfeadc8e62870\"), \"stock\" : \"MSFT\",\n \"date\" : ISODate(\"2020-05-19T20:00:00Z\"), \"price\" : 94,\n \"expMovingAvgForStock\" : 90 }\n{ \"_id\" : ObjectId(\"60d11fef833dfeadc8e62871\"), \"stock\" : \"MSFT\",\n \"date\" : ISODate(\"2020-05-20T20:00:00Z\"), \"price\" : 112,\n \"expMovingAvgForStock\" : 104.66666666666667 }\n{ \"_id\" : ObjectId(\"60d11fef833dfeadc8e62872\"), \"stock\" : \"MSFT\",\n \"date\" : ISODate(\"2020-05-21T20:00:00Z\"), \"price\" : 97.3,\n \"expMovingAvgForStock\" : 99.75555555555556 }","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"60d11fef833dfeadc8e6286b"</span>)<!-- -->, <span class="lg-highlight-string">"stock"</span> <!-- -->: <span class="lg-highlight-string">"MDB"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-05-18T20:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">13</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"expMovingAvgForStock"</span> <!-- -->: <span class="lg-highlight-number">13</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"60d11fef833dfeadc8e6286c"</span>)<!-- -->, <span class="lg-highlight-string">"stock"</span> <!-- -->: <span class="lg-highlight-string">"MDB"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-05-19T20:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">15.4</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"expMovingAvgForStock"</span> <!-- -->: <span class="lg-highlight-number">14.6</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"60d11fef833dfeadc8e6286d"</span>)<!-- -->, <span class="lg-highlight-string">"stock"</span> <!-- -->: <span class="lg-highlight-string">"MDB"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-05-20T20:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">12</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"expMovingAvgForStock"</span> <!-- -->: <span class="lg-highlight-number">12.866666666666667</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"60d11fef833dfeadc8e6286e"</span>)<!-- -->, <span class="lg-highlight-string">"stock"</span> <!-- -->: <span class="lg-highlight-string">"MDB"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-05-21T20:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">11.7</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"expMovingAvgForStock"</span> <!-- -->: <span class="lg-highlight-number">12.088888888888889</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"60d11fef833dfeadc8e6286f"</span>)<!-- -->, <span class="lg-highlight-string">"stock"</span> <!-- -->: <span class="lg-highlight-string">"MSFT"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-05-18T20:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">82</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"expMovingAvgForStock"</span> <!-- -->: <span class="lg-highlight-number">82</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"60d11fef833dfeadc8e62870"</span>)<!-- -->, <span class="lg-highlight-string">"stock"</span> <!-- -->: <span class="lg-highlight-string">"MSFT"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-05-19T20:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">94</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"expMovingAvgForStock"</span> <!-- -->: <span class="lg-highlight-number">90</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"60d11fef833dfeadc8e62871"</span>)<!-- -->, <span class="lg-highlight-string">"stock"</span> <!-- -->: <span class="lg-highlight-string">"MSFT"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-05-20T20:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">112</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"expMovingAvgForStock"</span> <!-- -->: <span class="lg-highlight-number">104.66666666666667</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"60d11fef833dfeadc8e62872"</span>)<!-- -->, <span class="lg-highlight-string">"stock"</span> <!-- -->: <span class="lg-highlight-string">"MSFT"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-05-21T20:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">97.3</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"expMovingAvgForStock"</span> <!-- -->: <span class="lg-highlight-number">99.75555555555556</span> }</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Exponential Moving Average Using
<code class="leafygreen-ui-1l06pbn">
alpha
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#exponential-moving-average-using-alpha" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="exponential-moving-average-using-alpha">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
This example uses
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-group-grp.-expMovingAvg" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$expMovingAvg
</code>
</span>
</a>
in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/setWindowFields/#mongodb-pipeline-pipe.-setWindowFields">
<code class="leafygreen-ui-1l06pbn">
$setWindowFields
</code>
</a>
stage to output the exponential moving
average for the stock prices using
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-expMovingAvg-alpha" target="_self">
<span>
alpha
</span>
</a>
set
to
<code class="leafygreen-ui-1l06pbn">
0.75
</code>
:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.stockPrices.aggregate( [\n {\n $setWindowFields: {\n partitionBy: \"$stock\",\n sortBy: { date: 1 },\n output: {\n expMovingAvgForStock: {\n $expMovingAvg: { input: \"$price\", alpha: 0.75 }\n }\n }\n }\n }\n] )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">stockPrices</span>.<span class="lg-highlight-title lg-highlight-function">aggregate</span>( <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">$setWindowFields</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">partitionBy</span>: <span class="lg-highlight-string">"$stock"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">sortBy</span>: <!-- -->{ <span class="lg-highlight-attr">date</span>: <span class="lg-highlight-number">1</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">output</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">expMovingAvgForStock</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">$expMovingAvg</span>: <!-- -->{ <span class="lg-highlight-attr">input</span>: <span class="lg-highlight-string">"$price"</span>, <span class="lg-highlight-attr">alpha</span>: <span class="lg-highlight-number">0.75</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">] )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
In the example:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
partitionBy: "$stock"
</code>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/setWindowFields/#std-label-setWindowFields-partitionBy">
partitions
</a>
the documents in the collection by
<code class="leafygreen-ui-1l06pbn">
stock
</code>
. There are partitions for
<code class="leafygreen-ui-1l06pbn">
"MDB"
</code>
and
<code class="leafygreen-ui-1l06pbn">
"MSFT"
</code>
.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
sortBy: { date: 1 }
</code>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/setWindowFields/#std-label-setWindowFields-sortBy">
sorts
</a>
the documents in each partition by
<code class="leafygreen-ui-1l06pbn">
date
</code>
in ascending order (
<code class="leafygreen-ui-1l06pbn">
1
</code>
), so the earliest
<code class="leafygreen-ui-1l06pbn">
date
</code>
is first.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
output
</code>
sets the exponential moving average for the stock prices in
a new field called
<code class="leafygreen-ui-1l06pbn">
expMovingAvgForStock
</code>
, as shown in the following
results. The value for
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-expMovingAvg-alpha" target="_self">
<span>
alpha
</span>
</a>
is set to
<code class="leafygreen-ui-1l06pbn">
0.75
</code>
in the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-expMovingAvg-alpha" target="_self">
<span>
exponential moving average formula
<!-- -->
.
</span>
</a>
</p>
</li>
</ul>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ \"_id\" : ObjectId(\"60d11fef833dfeadc8e6286b\"), \"stock\" : \"MDB\",\n \"date\" : ISODate(\"2020-05-18T20:00:00Z\"), \"price\" : 13,\n \"expMovingAvgForStock\" : 13 }\n{ \"_id\" : ObjectId(\"60d11fef833dfeadc8e6286c\"), \"stock\" : \"MDB\",\n \"date\" : ISODate(\"2020-05-19T20:00:00Z\"), \"price\" : 15.4,\n \"expMovingAvgForStock\" : 14.8 }\n{ \"_id\" : ObjectId(\"60d11fef833dfeadc8e6286d\"), \"stock\" : \"MDB\",\n \"date\" : ISODate(\"2020-05-20T20:00:00Z\"), \"price\" : 12,\n \"expMovingAvgForStock\" : 12.7 }\n{ \"_id\" : ObjectId(\"60d11fef833dfeadc8e6286e\"), \"stock\" : \"MDB\",\n \"date\" : ISODate(\"2020-05-21T20:00:00Z\"), \"price\" : 11.7,\n \"expMovingAvgForStock\" : 11.95 }\n{ \"_id\" : ObjectId(\"60d11fef833dfeadc8e6286f\"), \"stock\" : \"MSFT\",\n \"date\" : ISODate(\"2020-05-18T20:00:00Z\"), \"price\" : 82,\n \"expMovingAvgForStock\" : 82 }\n{ \"_id\" : ObjectId(\"60d11fef833dfeadc8e62870\"), \"stock\" : \"MSFT\",\n \"date\" : ISODate(\"2020-05-19T20:00:00Z\"), \"price\" : 94,\n \"expMovingAvgForStock\" : 91 }\n{ \"_id\" : ObjectId(\"60d11fef833dfeadc8e62871\"), \"stock\" : \"MSFT\",\n \"date\" : ISODate(\"2020-05-20T20:00:00Z\"), \"price\" : 112,\n \"expMovingAvgForStock\" : 106.75 }\n{ \"_id\" : ObjectId(\"60d11fef833dfeadc8e62872\"), \"stock\" : \"MSFT\",\n \"date\" : ISODate(\"2020-05-21T20:00:00Z\"), \"price\" : 97.3,\n \"expMovingAvgForStock\" : 99.6625 }","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"60d11fef833dfeadc8e6286b"</span>)<!-- -->, <span class="lg-highlight-string">"stock"</span> <!-- -->: <span class="lg-highlight-string">"MDB"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-05-18T20:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">13</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"expMovingAvgForStock"</span> <!-- -->: <span class="lg-highlight-number">13</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"60d11fef833dfeadc8e6286c"</span>)<!-- -->, <span class="lg-highlight-string">"stock"</span> <!-- -->: <span class="lg-highlight-string">"MDB"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-05-19T20:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">15.4</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"expMovingAvgForStock"</span> <!-- -->: <span class="lg-highlight-number">14.8</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"60d11fef833dfeadc8e6286d"</span>)<!-- -->, <span class="lg-highlight-string">"stock"</span> <!-- -->: <span class="lg-highlight-string">"MDB"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-05-20T20:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">12</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"expMovingAvgForStock"</span> <!-- -->: <span class="lg-highlight-number">12.7</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"60d11fef833dfeadc8e6286e"</span>)<!-- -->, <span class="lg-highlight-string">"stock"</span> <!-- -->: <span class="lg-highlight-string">"MDB"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-05-21T20:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">11.7</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"expMovingAvgForStock"</span> <!-- -->: <span class="lg-highlight-number">11.95</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"60d11fef833dfeadc8e6286f"</span>)<!-- -->, <span class="lg-highlight-string">"stock"</span> <!-- -->: <span class="lg-highlight-string">"MSFT"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-05-18T20:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">82</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"expMovingAvgForStock"</span> <!-- -->: <span class="lg-highlight-number">82</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"60d11fef833dfeadc8e62870"</span>)<!-- -->, <span class="lg-highlight-string">"stock"</span> <!-- -->: <span class="lg-highlight-string">"MSFT"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-05-19T20:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">94</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"expMovingAvgForStock"</span> <!-- -->: <span class="lg-highlight-number">91</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"60d11fef833dfeadc8e62871"</span>)<!-- -->, <span class="lg-highlight-string">"stock"</span> <!-- -->: <span class="lg-highlight-string">"MSFT"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-05-20T20:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">112</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"expMovingAvgForStock"</span> <!-- -->: <span class="lg-highlight-number">106.75</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"60d11fef833dfeadc8e62872"</span>)<!-- -->, <span class="lg-highlight-string">"stock"</span> <!-- -->: <span class="lg-highlight-string">"MSFT"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-05-21T20:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">97.3</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"expMovingAvgForStock"</span> <!-- -->: <span class="lg-highlight-number">99.6625</span> }</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</section>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/operator/query/lte/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
$lte
<a class="headerlink leafygreen-ui-1kepx47" href="#-lte" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="-lte">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#definition" target="_self">
<span>
Definition
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#examples" target="_self">
<span>
Examples
</span>
</a>
</li>
</ul>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Definition
<a class="headerlink leafygreen-ui-1kepx47" href="#definition" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="definition">
</div>
</a>
</h2>
<dl class="query">
<dt>
<code class="leafygreen-ui-1l06pbn">
$lte
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-query-op.-lte" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-query-op.-lte">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
<em>
Syntax
</em>
:
<code class="leafygreen-ui-1l06pbn">
{ field: { $lte: value } }
</code>
</p>
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-query-op.-lte" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$lte
</code>
</span>
</a>
selects the documents where the value of the
<code class="leafygreen-ui-1l06pbn">
field
</code>
is less than or equal to (i.e.
<code class="leafygreen-ui-1l06pbn">
<=
</code>
) the specified
<code class="leafygreen-ui-1l06pbn">
value
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
For most data types,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query-comparison/">
comparison
operators
</a>
only perform
comparisons on fields where the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/bson-types/#std-label-bson-types">
BSON type
</a>
matches the
query value's type. MongoDB supports limited cross-BSON comparison
through
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.find/#std-label-type-bracketing">
Type Bracketing
<!-- -->
.
</a>
</p>
</dd>
</dl>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Examples
<a class="headerlink leafygreen-ui-1kepx47" href="#examples" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="examples">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The following examples use the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection. Create the
collection:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.inventory.insertMany( [\n {\n \"item\": \"nuts\", \"quantity\": 30,\n \"carrier\": { \"name\": \"Shipit\", \"fee\": 3 }\n },\n {\n \"item\": \"bolts\", \"quantity\": 50,\n \"carrier\": { \"name\": \"Shipit\", \"fee\": 4 }\n },\n {\n \"item\": \"washers\", \"quantity\": 10,\n \"carrier\": { \"name\": \"Shipit\", \"fee\": 1 }\n }\n] )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">inventory</span>.<span class="lg-highlight-title lg-highlight-function">insertMany</span>( <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"item"</span>: <span class="lg-highlight-string">"nuts"</span>, <span class="lg-highlight-string">"quantity"</span>: <span class="lg-highlight-number">30</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"carrier"</span>: <!-- -->{ <span class="lg-highlight-string">"name"</span>: <span class="lg-highlight-string">"Shipit"</span>, <span class="lg-highlight-string">"fee"</span>: <span class="lg-highlight-number">3</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"item"</span>: <span class="lg-highlight-string">"bolts"</span>, <span class="lg-highlight-string">"quantity"</span>: <span class="lg-highlight-number">50</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"carrier"</span>: <!-- -->{ <span class="lg-highlight-string">"name"</span>: <span class="lg-highlight-string">"Shipit"</span>, <span class="lg-highlight-string">"fee"</span>: <span class="lg-highlight-number">4</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"item"</span>: <span class="lg-highlight-string">"washers"</span>, <span class="lg-highlight-string">"quantity"</span>: <span class="lg-highlight-number">10</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"carrier"</span>: <!-- -->{ <span class="lg-highlight-string">"name"</span>: <span class="lg-highlight-string">"Shipit"</span>, <span class="lg-highlight-string">"fee"</span>: <span class="lg-highlight-number">1</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">] )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Match Document Fields
<a class="headerlink leafygreen-ui-1kepx47" href="#match-document-fields" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="match-document-fields">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Consider the following example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.inventory.find( { quantity: { $lte: 20 } } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">inventory</span>.<span class="lg-highlight-title lg-highlight-function">find</span>( <!-- -->{ <span class="lg-highlight-attr">quantity</span>: <!-- -->{ <span class="lg-highlight-attr">$lte</span>: <span class="lg-highlight-number">20</span> } } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
This query will select all documents in the
<code class="leafygreen-ui-1l06pbn">
inventory
</code>
collection
where the
<code class="leafygreen-ui-1l06pbn">
quantity
</code>
field value is less than or equal to
<code class="leafygreen-ui-1l06pbn">
20
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
Example output:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n _id: ObjectId(\"61ba453ffe687fce2f04241c\"),\n item: 'washers',\n quantity: 10,\n carrier: { name: 'Shipit', fee: 1 }\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"61ba453ffe687fce2f04241c"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">item</span>: <span class="lg-highlight-string">'washers'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">quantity</span>: <span class="lg-highlight-number">10</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">carrier</span>: <!-- -->{ <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">'Shipit'</span>, <span class="lg-highlight-attr">fee</span>: <span class="lg-highlight-number">1</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Perform an Update Based on Embedded Document Fields
<a class="headerlink leafygreen-ui-1kepx47" href="#perform-an-update-based-on-embedded-document-fields" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="perform-an-update-based-on-embedded-document-fields">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The following example sets the
<code class="leafygreen-ui-1l06pbn">
price
</code>
field based on a
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-query-op.-lte" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$lte
</code>
</span>
</a>
comparison against a field in an embedded document.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.inventory.updateMany(\n { \"carrier.fee\": { $lte: 5 } }, { $set: { price: 9.99 } }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">inventory</span>.<span class="lg-highlight-title lg-highlight-function">updateMany</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"carrier.fee"</span>: <!-- -->{ <span class="lg-highlight-attr">$lte</span>: <span class="lg-highlight-number">5</span> } }<!-- -->, <!-- -->{ <span class="lg-highlight-attr">$set</span>: <!-- -->{ <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">9.99</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Example output:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n _id: ObjectId(\"61ba453ffe687fce2f04241a\"),\n item: 'nuts',\n quantity: 30,\n carrier: { name: 'Shipit', fee: 3 },\n price: 9.99\n},\n{\n _id: ObjectId(\"61ba453ffe687fce2f04241b\"),\n item: 'bolts',\n quantity: 50,\n carrier: { name: 'Shipit', fee: 4 },\n price: 9.99\n},\n{\n _id: ObjectId(\"61ba453ffe687fce2f04241c\"),\n item: 'washers',\n quantity: 10,\n carrier: { name: 'Shipit', fee: 1 },\n price: 9.99\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"61ba453ffe687fce2f04241a"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">item</span>: <span class="lg-highlight-string">'nuts'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">quantity</span>: <span class="lg-highlight-number">30</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">carrier</span>: <!-- -->{ <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">'Shipit'</span>, <span class="lg-highlight-attr">fee</span>: <span class="lg-highlight-number">3</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">9.99</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"61ba453ffe687fce2f04241b"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">item</span>: <span class="lg-highlight-string">'bolts'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">quantity</span>: <span class="lg-highlight-number">50</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">carrier</span>: <!-- -->{ <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">'Shipit'</span>, <span class="lg-highlight-attr">fee</span>: <span class="lg-highlight-number">4</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">9.99</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"61ba453ffe687fce2f04241c"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">item</span>: <span class="lg-highlight-string">'washers'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">quantity</span>: <span class="lg-highlight-number">10</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">carrier</span>: <!-- -->{ <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">'Shipit'</span>, <span class="lg-highlight-attr">fee</span>: <span class="lg-highlight-number">1</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">9.99</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
This
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.updateMany/#mongodb-method-db.collection.updateMany">
<code class="leafygreen-ui-1l06pbn">
updateMany()
</code>
</a>
operation searches for an
embedded document,
<code class="leafygreen-ui-1l06pbn">
carrier
</code>
, with a subfield named
<code class="leafygreen-ui-1l06pbn">
fee
</code>
. It sets
<code class="leafygreen-ui-1l06pbn">
{ price: 9.99 }
</code>
in each document where
<code class="leafygreen-ui-1l06pbn">
fee
</code>
has a value less
than or equal to 5.
</p>
<p class="leafygreen-ui-1kp3ins">
To set the value of the
<code class="leafygreen-ui-1l06pbn">
price
</code>
field in only the first document
where
<code class="leafygreen-ui-1l06pbn">
carrier.fee
</code>
is less than or equal to 5, use
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.updateOne/#mongodb-method-db.collection.updateOne">
<code class="leafygreen-ui-1l06pbn">
updateOne()
</code>
.
</a>
</p>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.find/#mongodb-method-db.collection.find">
<code class="leafygreen-ui-1l06pbn">
find()
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/update/set/#mongodb-update-up.-set">
<code class="leafygreen-ui-1l06pbn">
$set
</code>
</a>
</p>
</li>
</ul>
</div>
</div>
</section>
</section>
</section>
|
https://www.mongodb.com/docs/manual/tutorial/disable-transparent-huge-pages/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Disable Transparent Hugepages (THP) for Self-Managed Deployments
<a class="headerlink leafygreen-ui-1kepx47" href="#disable-transparent-hugepages--thp--for-self-managed-deployments" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="disable-transparent-hugepages--thp--for-self-managed-deployments">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#create-a-service-file" target="_self">
<span>
Create a Service File
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#using-tuned-and-ktune" target="_self">
<span>
Using
<code class="css-1kekw28 e1wawog0">
tuned
</code>
and
<code class="css-1kekw28 e1wawog0">
ktune
</code>
</span>
</a>
</li>
</ul>
</div>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
Upgraded TCMalloc in MongoDB 8.0
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 8.0, MongoDB uses an upgraded version of TCMalloc
that improves performance with Transparent Hugepages enabled. If you are
using MongoDB 8.0 or later, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/tcmalloc-performance/#std-label-enable-thp">
Enable Transparent Hugepages (THP)
<!-- -->
.
</a>
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Transparent Hugepages (THP) is a Linux memory management system
that reduces the overhead of Translation Lookaside Buffer (TLB) lookups. THP
achieves this by combining small pages and making them appear as larger
memory pages to the application.
</p>
<p class="leafygreen-ui-1kp3ins">
When running MongoDB 7.0 or earlier on Linux, THP should be disabled
for best performance. In earlier versions of MongoDB, database workloads often
experience decreased performance with THP enabled because they often use
non-contiguous, memory access patterns.
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
You can enable THP at the system level and disable it on the process level.
If you have multiple MongoDB processes on a single machine, ensure that
processes on version 8.0 enable THP, while processes on 7.0 or earlier
disable THP.
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To ensure that THP is disabled before
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
starts,
create a service file for your operating system that disables THP at boot. The
following instructions include examples for both the
<strong>
systemd
</strong>
and the
<strong>
System V init
</strong>
initialization systems.
</p>
<p class="leafygreen-ui-1kp3ins">
Additionally, for
<span class="leafygreen-ui-vm4wms" tabindex="0">
RHEL
</span>
and CentOS
systems that use
<code class="leafygreen-ui-1l06pbn">
ktune
</code>
and
<code class="leafygreen-ui-1l06pbn">
tuned
</code>
performance profiles, you must create
a custom
<code class="leafygreen-ui-1l06pbn">
tuned
</code>
profile as well.
</p>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Create a Service File
<a class="headerlink leafygreen-ui-1kepx47" href="#create-a-service-file" title="Permalink to this heading">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
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</svg>
<div class="css-1btu0w3 evvkmar0" id="create-a-service-file">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
To create a service file that disables THP, use the built-in initialization
system for your operating system. Recent versions of Linux typically use
<strong>
systemd
</strong>
, which uses the
<code class="leafygreen-ui-1l06pbn">
systemctl
</code>
command. Older versions of
Linux use
<strong>
System V init
</strong>
, which uses the
<code class="leafygreen-ui-1l06pbn">
service
</code>
command. For more
information, see the documentation for your operating system.
</p>
<p class="leafygreen-ui-1kp3ins">
Use the initialization system for your operating system:
</p>
<div aria-hidden="true">
</div>
<div class="leafygreen-ui-1b75luy" data-lgid="lg-tabs">
<div class="leafygreen-ui-jp7pox" id="tabs-15">
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<button aria-controls="_mkroxfsil" aria-selected="true" class="leafygreen-ui-1l773z1" data-text="" id="_1y0i4mtdj" name="" role="tab" tabindex="0">
<div class="leafygreen-ui-1nxuzmg">
systemd (systemctl)
</div>
</button>
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System V Init (service)
</div>
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</div>
<div class="leafygreen-ui-ov1ktg">
<div class="leafygreen-ui-1sg2lsz">
</div>
</div>
</div>
<div class="lg-ui-tab-panels-0000" data-lgid="lg-tabs-tab_panels">
<div>
<div aria-labelledby="_m7q6lm621" class="" id="_pjxv4kxeo" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"HowTo","steps":[{"@type":"HowToStep","text":"Create the following file and save it at\n/etc/systemd/system/disable-transparent-huge-pages.service:Some versions of Red Hat Enterprise Linux, and potentially other Red\nHat-based derivatives, use a different path for the THP enabled\nfile:Verify which path is in use on your system and update the\ndisable-transparent-huge-pages.service file accordingly.","name":"Create the systemd unit file"},{"@type":"HowToStep","text":"To reload the systemd unit files and make\ndisable-transparent-huge-pages.service available for use, run the\nfollowing command :","name":"Reload systemd unit files"},{"@type":"HowToStep","text":"Run:To verify that the relevant THP settings have changed, run the\nfollowing command:On Red Hat Enterprise Linux and potentially other Red Hat-based\nderivatives, you may instead need to use the following:The output should resemble the following:","name":"Start the service"},{"@type":"HowToStep","text":"To ensure that this setting is applied each time the operating system\nstarts, run the following command:","name":"Configure your operating system to run it on boot"},{"@type":"HowToStep","text":"If you use tuned or ktune profiles on\nRHEL (Red Hat Enterprise Linux)/ CentOS, you must also create\na custom tuned profile.","name":"(Optional) Customize tuned or ktune profile"}],"name":"Create a Service File - systemd (systemctl)","image":"https://webimages.mongodb.com/_com_assets/cms/kuyj2focmkbxv7gh3-stacked_default_slate_blue.svg?auto=format%252Ccompress"}
</script>
<div class="css-4nyere eccljxs0">
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
1
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Create the
<code class="leafygreen-ui-1l06pbn">
systemd
</code>
unit file
<a class="headerlink leafygreen-ui-1kepx47" href="#create-the-systemd-unit-file" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="create-the-systemd-unit-file">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Create the following file and save it at
<code class="leafygreen-ui-1l06pbn">
/etc/systemd/system/disable-transparent-huge-pages.service
</code>
:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"[Unit]\nDescription=Disable Transparent Hugepages (THP)\nDefaultDependencies=no\nAfter=sysinit.target local-fs.target\nBefore=mongod.service\n\n[Service]\nType=oneshot\nExecStart=/bin/sh -c 'echo never | tee /sys/kernel/mm/transparent_hugepage/enabled > /dev/null && echo never | tee /sys/kernel/mm/transparent_hugepage/defrag > /dev/null'\n\n[Install]\nWantedBy=basic.target","programmingLanguage":"Shell"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light shell leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[Unit]</td></tr><tr class=""><td class="leafygreen-ui-7razhx">Description=Disable Transparent Hugepages (THP)</td></tr><tr class=""><td class="leafygreen-ui-7razhx">DefaultDependencies=no</td></tr><tr class=""><td class="leafygreen-ui-7razhx">After=sysinit.target local-fs.target</td></tr><tr class=""><td class="leafygreen-ui-7razhx">Before=mongod.service</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">[Service]</td></tr><tr class=""><td class="leafygreen-ui-7razhx">Type=oneshot</td></tr><tr class=""><td class="leafygreen-ui-7razhx">ExecStart=/bin/sh -c 'echo never | tee /sys/kernel/mm/transparent_hugepage/enabled > /dev/null && echo never | tee /sys/kernel/mm/transparent_hugepage/defrag > /dev/null'</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">[Install]</td></tr><tr class=""><td class="leafygreen-ui-7razhx">WantedBy=basic.target</td></tr></tbody></table></code></pre>
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</div>
</div>
</div>
</div>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Some versions of Red Hat Enterprise Linux, and potentially other Red
Hat-based derivatives, use a different path for the THP
<code class="leafygreen-ui-1l06pbn">
enabled
</code>
file:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"/sys/kernel/mm/redhat_transparent_hugepage/enabled","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">/sys/kernel/mm/redhat_transparent_hugepage/enabled</td></tr></tbody></table></code></pre>
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</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Verify which path is in use on your system and update the
<code class="leafygreen-ui-1l06pbn">
disable-transparent-huge-pages.service
</code>
file accordingly.
</p>
</div>
</div>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
2
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Reload
<code class="leafygreen-ui-1l06pbn">
systemd
</code>
unit files
<a class="headerlink leafygreen-ui-1kepx47" href="#reload-systemd-unit-files" title="Permalink to this heading">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="reload-systemd-unit-files">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
To reload the
<code class="leafygreen-ui-1l06pbn">
systemd
</code>
unit files and make
<code class="leafygreen-ui-1l06pbn">
disable-transparent-huge-pages.service
</code>
available for use, run the
following command :
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"sudo systemctl daemon-reload","programmingLanguage":"Shell"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light shell leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">sudo systemctl daemon-reload</td></tr></tbody></table></code></pre>
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3
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Start the service
<a class="headerlink leafygreen-ui-1kepx47" href="#start-the-service" title="Permalink to this heading">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="start-the-service">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Run:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"sudo systemctl start disable-transparent-huge-pages","programmingLanguage":"Shell"}
</script>
<div class="css-16lmvu9">
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<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light shell leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">sudo systemctl start disable-transparent-huge-pages</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To verify that the relevant THP settings have changed, run the
following command:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"cat /sys/kernel/mm/transparent_hugepage/disabled && cat /sys/kernel/mm/transparent_hugepage/defrag","programmingLanguage":"Shell"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light shell leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">cat /sys/kernel/mm/transparent_hugepage/disabled && cat /sys/kernel/mm/transparent_hugepage/defrag</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
On Red Hat Enterprise Linux and potentially other Red Hat-based
derivatives, you may instead need to use the following:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"cat /sys/kernel/mm/redhat_transparent_hugepage/enabled && cat /sys/kernel/mm/redhat_transparent_hugepage/defrag","programmingLanguage":"Shell"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light shell leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">cat /sys/kernel/mm/redhat_transparent_hugepage/enabled && cat /sys/kernel/mm/redhat_transparent_hugepage/defrag</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The output should resemble the following:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"never\nnever","programmingLanguage":"Bash"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">never</td></tr><tr class=""><td class="leafygreen-ui-7razhx">never</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
4
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Configure your operating system to run it on boot
<a class="headerlink leafygreen-ui-1kepx47" href="#configure-your-operating-system-to-run-it-on-boot" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="configure-your-operating-system-to-run-it-on-boot">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
To ensure that this setting is applied each time the operating system
starts, run the following command:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"sudo systemctl enable disable-transparent-huge-pages","programmingLanguage":"Shell"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light shell leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">sudo systemctl enable disable-transparent-huge-pages</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
5
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
(
<em>
Optional
</em>
) Customize tuned or ktune profile
<a class="headerlink leafygreen-ui-1kepx47" href="#-optional--customize-tuned-or-ktune-profile" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="-optional--customize-tuned-or-ktune-profile">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
If you use
<code class="leafygreen-ui-1l06pbn">
tuned
</code>
or
<code class="leafygreen-ui-1l06pbn">
ktune
</code>
profiles on
<span class="leafygreen-ui-vm4wms" tabindex="0">
RHEL
</span>
/ CentOS, you must also create
a custom
<code class="leafygreen-ui-1l06pbn">
tuned
</code>
profile.
</p>
</section>
</div>
</div>
</div>
</div>
</div>
</div>
<div>
<div aria-labelledby="_crzqjbjhx" class="leafygreen-ui-38lglc" id="_4nt24lu1v" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"HowTo","steps":[{"@type":"HowToStep","text":"Create the following file and save it at\n/etc/init.d/disable-transparent-hugepages:","name":"Create the init.d script"},{"@type":"HowToStep","text":"Run:","name":"Make the script executable"},{"@type":"HowToStep","text":"Run:To verify that the relevant THP settings have changed, run the\nfollowing command:On Red Hat Enterprise Linux and potentially other Red Hat-based\nderivatives, you may instead need to use the following:The output should resemble the following:","name":"Run the script"},{"@type":"HowToStep","text":"To ensure that this setting is applied each time the operating sytem\nstarts, run the following command for your Linux distribution:DistributionCommandUbuntu and DebianSUSERed Hat, CentOS, Amazon Linux, and derivatives","name":"Configure your operating system to run it on boot"},{"@type":"HowToStep","text":"If you are using tuned or ktune profiles on\nRHEL (Red Hat Enterprise Linux)/ CentOS, you must also create\na custom tuned profile.","name":"(Optional) Customize tuned or ktune profile"}],"name":"Create a Service File - System V Init (service)","image":"https://webimages.mongodb.com/_com_assets/cms/kuyj2focmkbxv7gh3-stacked_default_slate_blue.svg?auto=format%252Ccompress"}
</script>
<div class="css-4nyere eccljxs0">
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
1
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Create the
<code class="leafygreen-ui-1l06pbn">
init.d
</code>
script
<a class="headerlink leafygreen-ui-1kepx47" href="#create-the-init.d-script" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="create-the-init.d-script">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Create the following file and save it at
<code class="leafygreen-ui-1l06pbn">
/etc/init.d/disable-transparent-hugepages
</code>
:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"#!/bin/bash\n### BEGIN INIT INFO\n# Provides: disable-transparent-hugepages\n# Required-Start: $local_fs\n# Required-Stop:\n# X-Start-Before: mongod mongodb-mms-automation-agent\n# Default-Start: 2 3 4 5\n# Default-Stop: 0 1 6\n# Short-Description: Disable Linux Transparent Hugepages\n# Description: Disable Linux Transparent Hugepages, to improve\n# database performance.\n### END INIT INFO\n\ncase $1 in\n start)\n if [ -d /sys/kernel/mm/transparent_hugepage ]; then\n thp_path=/sys/kernel/mm/transparent_hugepage\n elif [ -d /sys/kernel/mm/redhat_transparent_hugepage ]; then\n thp_path=/sys/kernel/mm/redhat_transparent_hugepage\n else\n return 0\n fi\n\n echo 'never' | tee /sys/kernel/mm/transparent_hugepage/enabled > /dev/null && echo 'never' | tee /sys/kernel/mm/transparent_hugepage/defrag > /dev/null\n\n unset thp_path\n ;;\nesac","programmingLanguage":"Shell"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light shell leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-meta lg-highlight-prompt">#</span><span class="lg-highlight-bash">!</span><span class="lg-highlight-bash">/bin/bash</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-meta lg-highlight-prompt">#</span><span class="lg-highlight-comment lg-highlight-bash">## BEGIN INIT INFO</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-meta lg-highlight-prompt"># </span><span class="lg-highlight-bash">Provides: disable-transparent-hugepages</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-meta lg-highlight-prompt"># </span><span class="lg-highlight-bash">Required-Start: </span><span class="lg-highlight-variable lg-highlight-bash">$local_fs</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-meta lg-highlight-prompt"># </span><span class="lg-highlight-bash">Required-Stop:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-meta lg-highlight-prompt"># </span><span class="lg-highlight-bash">X-Start-Before: mongod mongodb-mms-automation-agent</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-meta lg-highlight-prompt"># </span><span class="lg-highlight-bash">Default-Start: 2 3 4 5</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-meta lg-highlight-prompt"># </span><span class="lg-highlight-bash">Default-Stop: 0 1 6</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-meta lg-highlight-prompt"># </span><span class="lg-highlight-bash">Short-Description: Disable Linux Transparent Hugepages</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-meta lg-highlight-prompt"># </span><span class="lg-highlight-bash">Description: Disable Linux Transparent Hugepages, to improve</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-meta lg-highlight-prompt"># </span><span class="lg-highlight-bash"> database performance.</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-meta lg-highlight-prompt">#</span><span class="lg-highlight-comment lg-highlight-bash">## END INIT INFO</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">case $1 in</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> start)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> if [ -d /sys/kernel/mm/transparent_hugepage ]; then</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> thp_path=/sys/kernel/mm/transparent_hugepage</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> elif [ -d /sys/kernel/mm/redhat_transparent_hugepage ]; then</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> thp_path=/sys/kernel/mm/redhat_transparent_hugepage</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> else</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> return 0</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> fi</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> echo 'never' | tee /sys/kernel/mm/transparent_hugepage/enabled > /dev/null && echo 'never' | tee /sys/kernel/mm/transparent_hugepage/defrag > /dev/null</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> unset thp_path</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ;;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">esac</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
2
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Make the script executable
<a class="headerlink leafygreen-ui-1kepx47" href="#make-the-script-executable" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="make-the-script-executable">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Run:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"sudo chmod 755 /etc/init.d/disable-transparent-hugepages","programmingLanguage":"Shell"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light shell leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">sudo chmod 755 /etc/init.d/disable-transparent-hugepages</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
3
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Run the script
<a class="headerlink leafygreen-ui-1kepx47" href="#run-the-script" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="run-the-script">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Run:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"sudo /etc/init.d/disable-transparent-hugepages start","programmingLanguage":"Shell"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light shell leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">sudo /etc/init.d/disable-transparent-hugepages start</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To verify that the relevant THP settings have changed, run the
following command:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"cat /sys/kernel/mm/transparent_hugepage/enabled && cat /sys/kernel/mm/transparent_hugepage/defrag","programmingLanguage":"Shell"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light shell leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">cat /sys/kernel/mm/transparent_hugepage/enabled && cat /sys/kernel/mm/transparent_hugepage/defrag</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
On Red Hat Enterprise Linux and potentially other Red Hat-based
derivatives, you may instead need to use the following:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"cat /sys/kernel/mm/redhat_transparent_hugepage/enabled && cat /sys/kernel/mm/redhat_transparent_hugepage/defrag","programmingLanguage":"Shell"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light shell leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">cat /sys/kernel/mm/redhat_transparent_hugepage/enabled && cat /sys/kernel/mm/redhat_transparent_hugepage/defrag</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The output should resemble the following:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"never\nnever","programmingLanguage":"Bash"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">never</td></tr><tr class=""><td class="leafygreen-ui-7razhx">never</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
4
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Configure your operating system to run it on boot
<a class="headerlink leafygreen-ui-1kepx47" href="#configure-your-operating-system-to-run-it-on-boot-1" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
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<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
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<div class="css-1btu0w3 evvkmar0" id="configure-your-operating-system-to-run-it-on-boot-1">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
To ensure that this setting is applied each time the operating sytem
starts, run the following command for your Linux distribution:
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:20%"/>
<col style="width:80%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Distribution
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Command
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Ubuntu and Debian
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"sudo update-rc.d disable-transparent-hugepages defaults","programmingLanguage":"Shell"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light shell leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">sudo update-rc.d disable-transparent-hugepages defaults</td></tr></tbody></table></code></pre>
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<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
SUSE
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<script class="structured_data" type="application/ld+json">
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light shell leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">sudo insserv /etc/init.d/disable-transparent-hugepages</td></tr></tbody></table></code></pre>
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<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Red Hat, CentOS, Amazon Linux, and derivatives
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<script class="structured_data" type="application/ld+json">
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light shell leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">sudo chkconfig --add disable-transparent-hugepages</td></tr></tbody></table></code></pre>
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</tbody>
</table>
</div>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
5
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
(
<em>
Optional
</em>
) Customize tuned or ktune profile
<a class="headerlink leafygreen-ui-1kepx47" href="#-optional--customize-tuned-or-ktune-profile-1" title="Permalink to this heading">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="-optional--customize-tuned-or-ktune-profile-1">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
If you are using
<code class="leafygreen-ui-1l06pbn">
tuned
</code>
or
<code class="leafygreen-ui-1l06pbn">
ktune
</code>
profiles on
<span class="leafygreen-ui-vm4wms" tabindex="0">
RHEL
</span>
/ CentOS, you must also create
a custom
<code class="leafygreen-ui-1l06pbn">
tuned
</code>
profile.
</p>
</section>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-disable-thp-configure-thp-tuned">
</span>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Using
<code class="leafygreen-ui-1l06pbn">
tuned
</code>
and
<code class="leafygreen-ui-1l06pbn">
ktune
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#using-tuned-and-ktune" title="Permalink to this heading">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="using-tuned-and-ktune">
</div>
</a>
</h2>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
If you use
<code class="leafygreen-ui-1l06pbn">
tuned
</code>
or
<code class="leafygreen-ui-1l06pbn">
ktune
</code>
, perform the steps in this section after
creating the service file.
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
tuned
</code>
and
<code class="leafygreen-ui-1l06pbn">
ktune
</code>
are kernel tuning utilities that can affect the
Transparent Hugepages setting on your system. If you use
<code class="leafygreen-ui-1l06pbn">
tuned
</code>
or
<code class="leafygreen-ui-1l06pbn">
ktune
</code>
on your
<span class="leafygreen-ui-vm4wms" tabindex="0">
RHEL
</span>
or CentOS system while running
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
, you must create a custom
<code class="leafygreen-ui-1l06pbn">
tuned
</code>
profile to ensure that THP
stays disabled.
</p>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Red Hat/CentOS 6
<a class="headerlink leafygreen-ui-1kepx47" href="#red-hat-centos-6" title="Permalink to this heading">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
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</svg>
<div class="css-1btu0w3 evvkmar0" id="red-hat-centos-6">
</div>
</a>
</h3>
<script class="structured_data" type="application/ld+json">
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</script>
<div class="css-4nyere eccljxs0">
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
1
</div>
</div>
<div class="css-1ed38mk">
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Create a new profile.
<a class="headerlink leafygreen-ui-1kepx47" href="#create-a-new-profile" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="create-a-new-profile">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
Create a new profile from an existing profile by copying the
relevant directory. This example uses the
<code class="leafygreen-ui-1l06pbn">
virtual-guest
</code>
profile as the base, and uses
<code class="leafygreen-ui-1l06pbn">
virtual-guest-no-thp
</code>
as the new profile:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"sudo cp -r /etc/tune-profiles/virtual-guest /etc/tune-profiles/virtual-guest-no-thp\n","programmingLanguage":"Shell"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light shell leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">sudo cp -r /etc/tune-profiles/virtual-guest /etc/tune-profiles/virtual-guest-no-thp</td></tr></tbody></table></code></pre>
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2
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<div class="css-1ed38mk">
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Edit
<code class="leafygreen-ui-1l06pbn">
ktune.sh
</code>
.
<a class="headerlink leafygreen-ui-1kepx47" href="#edit-ktune-sh" title="Permalink to this heading">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
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</div>
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</h4>
<p class="leafygreen-ui-1kp3ins">
Edit
<code class="leafygreen-ui-1l06pbn">
/etc/tune-profiles/virtual-guest-no-thp/ktune.sh
</code>
and change the
<code class="leafygreen-ui-1l06pbn">
set_transparent_hugepages
</code>
setting to the
following:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"set_transparent_hugepages never\n"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light none leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">set_transparent_hugepages never</td></tr></tbody></table></code></pre>
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3
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<div class="css-1ed38mk">
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Enable the new profile.
<a class="headerlink leafygreen-ui-1kepx47" href="#enable-the-new-profile" title="Permalink to this heading">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="enable-the-new-profile">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
Enable the new profile:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"sudo tuned-adm profile virtual-guest-no-thp\n","programmingLanguage":"Shell"}
</script>
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<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light shell leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">sudo tuned-adm profile virtual-guest-no-thp</td></tr></tbody></table></code></pre>
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</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Red Hat/CentOS 7 and 8
<a class="headerlink leafygreen-ui-1kepx47" href="#red-hat-centos-7-and-8" title="Permalink to this heading">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
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</h3>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"HowTo","steps":[{"@type":"HowToStep","text":"Create a new profile.Create a new directory to hold the custom tuned profile.\nThis example inherits from the existing virtual-guest\nprofile, and uses virtual-guest-no-thp as the new profile:"},{"@type":"HowToStep","text":"Edit tuned.conf.Create and edit /etc/tuned/virtual-guest-no-thp/tuned.conf so that it contains the\nfollowing:This example inherits from the existing virtual-guest\nprofile. Select the profile most appropriate for your system."},{"@type":"HowToStep","text":"Enable the new profile.Enable the new profile:"}],"name":"Red Hat/CentOS 7 and 8","image":"https://webimages.mongodb.com/_com_assets/cms/kuyj2focmkbxv7gh3-stacked_default_slate_blue.svg?auto=format%252Ccompress"}
</script>
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<div class="css-19lsqsq e1ckbxcu2">
1
</div>
</div>
<div class="css-1ed38mk">
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Create a new profile.
<a class="headerlink leafygreen-ui-1kepx47" href="#create-a-new-profile-1" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="create-a-new-profile-1">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
Create a new directory to hold the custom
<code class="leafygreen-ui-1l06pbn">
tuned
</code>
profile.
This example inherits from the existing
<code class="leafygreen-ui-1l06pbn">
virtual-guest
</code>
profile, and uses
<code class="leafygreen-ui-1l06pbn">
virtual-guest-no-thp
</code>
as the new profile:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"sudo mkdir /etc/tuned/virtual-guest-no-thp\n","programmingLanguage":"Shell"}
</script>
<div class="css-16lmvu9">
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<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light shell leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">sudo mkdir /etc/tuned/virtual-guest-no-thp</td></tr></tbody></table></code></pre>
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<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
2
</div>
</div>
<div class="css-1ed38mk">
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Edit
<code class="leafygreen-ui-1l06pbn">
tuned.conf
</code>
.
<a class="headerlink leafygreen-ui-1kepx47" href="#edit-tuned-conf" title="Permalink to this heading">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="edit-tuned-conf">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
Create and edit
<code class="leafygreen-ui-1l06pbn">
/etc/tuned/virtual-guest-no-thp/tuned.conf
</code>
so that it contains the
following:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"[main]\ninclude=virtual-guest\n\n[vm]\ntransparent_hugepages=never\n","programmingLanguage":"Ini"}
</script>
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<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light ini leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-section">[main]</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">include</span>=virtual-guest</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-section">[vm]</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">transparent_hugepages</span>=never</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
This example inherits from the existing
<code class="leafygreen-ui-1l06pbn">
virtual-guest
</code>
profile. Select the profile most appropriate for your system.
</p>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
3
</div>
</div>
<div class="css-1ed38mk">
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Enable the new profile.
<a class="headerlink leafygreen-ui-1kepx47" href="#enable-the-new-profile-1" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="enable-the-new-profile-1">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
Enable the new profile:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"sudo tuned-adm profile virtual-guest-no-thp\n","programmingLanguage":"Shell"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light shell leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">sudo tuned-adm profile virtual-guest-no-thp</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</section>
</div>
</div>
</div>
</section>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/method/db.collection.stats/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
db.collection.stats()
<a class="headerlink leafygreen-ui-1kepx47" href="#db.collection.stats--" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="db.collection.stats--">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#definition" target="_self">
<span>
Definition
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#behavior" target="_self">
<span>
Behavior
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#examples" target="_self">
<span>
Examples
</span>
</a>
</li>
</ul>
</div>
<div class="leafygreen-ui-147elvs">
<p class="leafygreen-ui-1ronz74">
MongoDB with drivers
</p>
<div class="leafygreen-ui-18k5rfm">
<p class="leafygreen-ui-1kp3ins">
This page documents a
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
method. To see the equivalent
method in a MongoDB driver, see the corresponding page for your
programming language:
</p>
</div>
<div class="leafygreen-ui-zgrwqu notranslate">
<a class="leafygreen-ui-v22cck" href="https://www.mongodb.com/docs/drivers/csharp/current/fundamentals/aggregation/" target="_self">
<svg class="leafygreen-ui-x3zji3" fill="none" height="24" viewbox="0 0 28 29" width="24" xmlns="http://www.w3.org/2000/svg">
<g clip-path="url(#clip0_1351_59964)">
<g clip-path="url(#clip1_1351_59964)">
<path d="M25.7709 9.2495C25.7709 8.79827 25.678 8.39408 25.4827 8.04627C25.2874 7.70785 25.0084 7.42586 24.627 7.20025C21.465 5.35781 18.2937 3.51538 15.1317 1.67295C14.2761 1.17474 13.4484 1.19354 12.6021 1.70115C11.3466 2.45316 5.04112 6.10042 3.15321 7.20025C2.3813 7.65142 2 8.34705 2 9.24005C2 12.9531 2 16.6568 2 20.3698C2 20.8117 2.093 21.2064 2.279 21.5449C2.4743 21.8927 2.7626 22.1841 3.15321 22.4191C5.03182 23.5189 11.3373 27.1662 12.6021 27.9182C13.4484 28.4258 14.2761 28.4446 15.1317 27.9463C18.2937 26.1039 21.465 24.2615 24.627 22.4191C25.0177 22.1935 25.306 21.9021 25.5012 21.5449C25.6873 21.2064 25.7803 20.8117 25.7803 20.3698C25.7709 20.3698 25.7709 12.9531 25.7709 9.2495Z" fill="#A179DC">
</path>
<path d="M13.9227 14.7673L2.27905 21.5449C2.47435 21.8927 2.76265 22.1841 3.15326 22.4191C5.03187 23.5189 11.3373 27.1662 12.6021 27.9182C13.4484 28.4258 14.2762 28.4445 15.1317 27.9463C18.2938 26.1039 21.4651 24.2615 24.6271 22.4191C25.0177 22.1935 25.306 21.9021 25.5013 21.5449L13.9227 14.7673Z" fill="#280068">
</path>
<path d="M25.7711 9.24949C25.7711 8.79827 25.6781 8.39408 25.4828 8.04626L13.9229 14.7768L25.4921 21.5543C25.6781 21.2159 25.7711 20.8211 25.7711 20.3793C25.7711 20.3699 25.7711 12.9531 25.7711 9.24949Z" fill="#390091">
</path>
<path d="M20.7771 12.2387V13.5078H22.0325V12.2387H22.6557V13.5078H23.9111V14.1376H22.6557V15.4066H23.9111V16.0364H22.6557V17.3054H22.0325V16.0364H20.7771V17.3054H20.1539V16.0364H18.8984V15.4066H20.1539V14.1376H18.8984V13.5078H20.1539V12.2387H20.7771ZM22.0325 14.1376H20.7771V15.4066H22.0325V14.1376Z" fill="white">
</path>
<path d="M13.9508 5.87482C17.2151 5.87482 20.0702 7.67022 21.6047 10.3399L21.5861 10.3117L17.7452 12.5489C16.9919 11.2517 15.5969 10.3775 14.0066 10.3587H13.9601C11.5328 10.3587 9.56116 12.3515 9.56116 14.805C9.56116 15.604 9.77503 16.3654 10.1377 17.014C10.9004 18.3488 12.3232 19.2512 13.9601 19.2512C15.6062 19.2512 17.0384 18.3394 17.7917 16.9858L17.7731 17.014L21.614 19.2606C20.0981 21.9021 17.2895 23.6975 14.0531 23.7257H13.9508C10.6679 23.7257 7.81274 21.9209 6.28753 19.2418C5.54353 17.9352 5.11572 16.4124 5.11572 14.7956C5.11572 9.87931 9.06825 5.87482 13.9508 5.87482Z" fill="white">
</path>
</g>
</g>
<defs>
<clippath id="clip0_1351_59964">
<rect fill="white" height="28" transform="translate(0 0.809265)" width="28">
</rect>
</clippath>
<clippath id="clip1_1351_59964">
<rect fill="white" height="27" transform="translate(2 1.30966)" width="24">
</rect>
</clippath>
</defs>
</svg>
<span>
C#
</span>
</a>
<a class="leafygreen-ui-v22cck" href="https://www.mongodb.com/docs/drivers/java/sync/current/fundamentals/aggregation/" target="_self">
<svg class="leafygreen-ui-x3zji3" fill="none" height="24" viewbox="0 0 30 41" width="24" xmlns="http://www.w3.org/2000/svg">
<path d="M10.0921 30.7949C10.0921 30.7949 8.57608 31.6793 11.166 31.9636C14.2929 32.311 15.9037 32.2794 19.3464 31.6161C19.3464 31.6161 20.2623 32.1846 21.5257 32.6901C13.7876 35.9748 4.02791 32.5005 10.0921 30.7949Z" fill="#0074BD">
</path>
<path d="M9.14539 26.4678C9.14539 26.4678 7.43985 27.7312 10.0298 27.9838C13.3778 28.3312 15.9992 28.3628 20.579 27.4785C20.579 27.4785 21.2107 28.1101 22.1898 28.4576C12.8724 31.2054 2.44949 28.6787 9.14539 26.4678Z" fill="#0074BD">
</path>
<path d="M17.1039 19.1398C18.9989 21.3191 16.5985 23.3089 16.5985 23.3089C16.5985 23.3089 21.431 20.8138 19.2201 17.6869C17.1355 14.7811 15.5563 13.3282 24.1788 8.33789C24.1473 8.33789 10.6607 11.6858 17.1039 19.1398Z" fill="#EA2D2E">
</path>
<path d="M27.3377 33.9845C27.3377 33.9845 28.4431 34.9004 26.1059 35.6269C21.6525 36.985 7.53417 37.3957 3.61769 35.6901C2.19639 35.0899 4.84949 34.2372 5.67069 34.0477C6.52347 33.8582 7.02884 33.8898 7.02884 33.8898C5.44961 32.7843 -3.10981 36.0691 2.67016 36.9851C18.4308 39.5433 31.4121 35.8164 27.3377 33.9845Z" fill="#0074BD">
</path>
<path d="M10.8194 21.983C10.8194 21.983 3.6497 23.6885 8.2926 24.3203C10.2509 24.5729 14.1357 24.5097 17.7995 24.2255C20.7685 23.9728 23.7375 23.4359 23.7375 23.4359C23.7375 23.4359 22.6951 23.8781 21.9372 24.415C14.6411 26.3416 0.585992 25.4257 4.62881 23.4675C8.00839 21.7935 10.8194 21.983 10.8194 21.983Z" fill="#0074BD">
</path>
<path d="M23.6745 29.1846C31.0969 25.3313 27.6542 21.6359 25.2538 22.1413C24.6537 22.2676 24.401 22.3623 24.401 22.3623C24.401 22.3623 24.6221 22.0149 25.0327 21.8886C29.7703 20.2146 33.4025 26.7842 23.5166 29.4057C23.5482 29.3741 23.6429 29.2794 23.6745 29.1846Z" fill="#0074BD">
</path>
<path d="M19.2206 0.25293C19.2206 0.25293 23.3266 4.35891 15.3357 10.6758C8.92404 15.7293 13.8828 18.6351 15.3357 21.9199C11.6087 18.5403 8.86088 15.5714 10.6928 12.792C13.3775 8.74919 20.863 6.79093 19.2206 0.25293Z" fill="#EA2D2E">
</path>
<path d="M11.5455 39.6068C18.6521 40.049 29.5803 39.3541 29.833 35.9746C29.833 35.9746 29.3276 37.238 23.9583 38.2487C17.894 39.3858 10.4085 39.2594 5.95508 38.533C5.95508 38.5646 6.87103 39.3225 11.5455 39.6068Z" fill="#0074BD">
</path>
</svg>
<span>
Java Sync
</span>
</a>
<a class="leafygreen-ui-v22cck" href="https://www.mongodb.com/docs/drivers/node/current/fundamentals/aggregation/" target="_self">
<svg class="leafygreen-ui-x3zji3" fill="none" height="24" viewbox="0 0 30 30" width="24" xmlns="http://www.w3.org/2000/svg">
<g clip-path="url(#clip0_2131_12968)">
<mask height="19" id="mask0_2131_12968" maskunits="userSpaceOnUse" width="30" x="0" y="6">
<path d="M30 6.04395H0V24.3825H30V6.04395Z" fill="white">
</path>
</mask>
<g mask="url(#mask0_2131_12968)">
<mask height="19" id="mask1_2131_12968" maskunits="userSpaceOnUse" width="30" x="0" y="6">
<path d="M30 6.04395H0V24.3825H30V6.04395Z" fill="white">
</path>
</mask>
<g mask="url(#mask1_2131_12968)">
<path d="M14.8241 24.3823C14.7224 24.3823 14.6274 24.3552 14.5393 24.3078L13.6374 23.7731C13.5018 23.6986 13.5696 23.6715 13.6103 23.658C13.7934 23.597 13.8273 23.5835 14.0172 23.4751C14.0375 23.4616 14.0646 23.4684 14.085 23.4819L14.7767 23.8949C14.8038 23.9084 14.8377 23.9084 14.858 23.8949L17.5637 22.3311C17.5909 22.3176 17.6044 22.2905 17.6044 22.2567V19.136C17.6044 19.1021 17.5909 19.075 17.5637 19.0615L14.858 17.5045C14.8309 17.4909 14.797 17.4909 14.7767 17.5045L12.071 19.0615C12.0439 19.075 12.0302 19.1089 12.0302 19.136V22.2567C12.0302 22.2838 12.0439 22.3176 12.071 22.3311L12.8101 22.7576C13.2102 22.9607 13.4611 22.7237 13.4611 22.4868V19.4067C13.4611 19.3661 13.495 19.3255 13.5425 19.3255H13.8884C13.929 19.3255 13.9697 19.3593 13.9697 19.4067V22.4868C13.9697 23.0217 13.6781 23.333 13.1695 23.333C13.0136 23.333 12.8915 23.333 12.5457 23.1638L11.8336 22.7576C11.6574 22.6561 11.5488 22.4665 11.5488 22.2635V19.1427C11.5488 18.9396 11.6574 18.7501 11.8336 18.6485L14.5393 17.0848C14.7089 16.99 14.9394 16.99 15.109 17.0848L17.8146 18.6485C17.9909 18.7501 18.0995 18.9396 18.0995 19.1427V22.2635C18.0995 22.4665 17.9909 22.6561 17.8146 22.7576L15.109 24.3214C15.0276 24.3552 14.9259 24.3823 14.8241 24.3823Z" fill="black">
</path>
<path d="M15.6643 22.2362C14.4775 22.2362 14.2334 21.6946 14.2334 21.2343C14.2334 21.1936 14.2673 21.153 14.3147 21.153H14.6674C14.7081 21.153 14.742 21.1801 14.742 21.2207C14.7963 21.5795 14.9522 21.7555 15.671 21.7555C16.2407 21.7555 16.4847 21.6269 16.4847 21.3223C16.4847 21.1462 16.4169 21.0177 15.5286 20.9297C14.7895 20.8552 14.3284 20.6928 14.3284 20.1038C14.3284 19.5555 14.7895 19.2305 15.5625 19.2305C16.4305 19.2305 16.8577 19.5284 16.912 20.1782C16.912 20.1986 16.9052 20.2189 16.8916 20.2392C16.8781 20.2527 16.8577 20.2663 16.8374 20.2663H16.4779C16.4441 20.2663 16.4101 20.2392 16.4034 20.2053C16.322 19.833 16.1118 19.7111 15.5557 19.7111C14.9319 19.7111 14.8573 19.9278 14.8573 20.0902C14.8573 20.2866 14.9454 20.3475 15.7863 20.4558C16.6204 20.5641 17.0137 20.7198 17.0137 21.302C17.0137 21.8977 16.5187 22.2362 15.6643 22.2362Z" fill="black">
</path>
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Node.js
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C
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C++
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Go
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<path d="M52.744 253.955l29.64-97.1L17.16 170.8l35.583 83.154z" fill="url(#:R1ov5qcmqn9:d)">
</path>
<path d="M180.358 188.05L153.085 81.226l-78.047 73.16 105.32 33.666z" fill="url(#:R1ov5qcmqn9:e)">
</path>
<path d="M248.693 82.73l-73.777-60.256-20.544 66.418 94.321-6.162z" fill="url(#:R1ov5qcmqn9:f)">
</path>
<path d="M214.191.99L170.8 24.97 143.424.669l70.767.322z" fill="url(#:R1ov5qcmqn9:g)">
</path>
<path d="M0 203.372l18.177-33.151-14.704-39.494L0 203.372z" fill="url(#:R1ov5qcmqn9:h)">
</path>
<path d="M2.496 129.48l14.794 41.963 64.283-14.422 73.39-68.207 20.712-65.787L143.063 0 87.618 20.75c-17.469 16.248-51.366 48.396-52.588 49-1.21.618-22.384 40.639-32.534 59.73z" fill="#FFF">
</path>
<path d="M54.442 54.094c37.86-37.538 86.667-59.716 105.397-40.818 18.72 18.898-1.132 64.823-38.992 102.349-37.86 37.525-86.062 60.925-104.78 42.027-18.73-18.885.515-66.032 38.375-103.558z" fill="url(#:R1ov5qcmqn9:i)">
</path>
<path d="M52.744 253.916l29.408-97.409 97.665 31.376c-35.312 33.113-74.587 61.106-127.073 66.033z" fill="url(#:R1ov5qcmqn9:j)">
</path>
<path d="M155.092 88.622l25.073 99.313c29.498-31.016 55.972-64.36 68.938-105.603l-94.01 6.29z" fill="url(#:R1ov5qcmqn9:k)">
</path>
<path d="M248.847 82.833c10.035-30.282 12.35-73.725-34.966-81.791l-38.825 21.445 73.791 60.346z" fill="url(#:R1ov5qcmqn9:l)">
</path>
<path d="M0 202.935c1.39 49.979 37.448 50.724 52.808 51.162l-35.48-82.86L0 202.935z" fill="#9E1209">
</path>
<path d="M155.232 88.777c22.667 13.932 68.35 41.912 69.276 42.426 1.44.81 19.695-30.784 23.838-48.64l-93.114 6.214z" fill="url(#:R1ov5qcmqn9:m)">
</path>
<path d="M82.113 156.507l39.313 75.848c23.246-12.607 41.45-27.967 58.121-44.42l-97.434-31.428z" fill="url(#:R1ov5qcmqn9:n)">
</path>
<path d="M17.174 171.34l-5.57 66.328c10.51 14.357 24.97 15.605 40.136 14.486-10.973-27.311-32.894-81.92-34.566-80.814z" fill="url(#:R1ov5qcmqn9:o)">
</path>
<path d="M174.826 22.654l78.1 10.96c-4.169-17.662-16.969-29.06-38.787-32.623l-39.313 21.663z" fill="url(#:R1ov5qcmqn9:p)">
</path>
</svg>
<span>
Mongoid
</span>
</a>
<a class="leafygreen-ui-18cpm0b" href="https://www.mongodb.com/docs/drivers/rust/current/fundamentals/aggregation/" target="_self">
<svg class="leafygreen-ui-x3zji3" height="24" viewbox="0 0 30 30" width="24" xmlns="http://www.w3.org/2000/svg">
<g clip-path="url(#clip0_5454_14623)">
<path d="M15.2561 3.08398C8.56014 3.08398 3.11035 8.53634 3.11035 15.2297C3.11035 21.9231 8.56271 27.3755 15.2561 27.3755C21.9495 27.3755 27.4019 21.9231 27.4019 15.2297C27.4019 8.53634 21.9495 3.08398 15.2561 3.08398ZM15.2381 4.16315C15.4458 4.16853 15.6432 4.25509 15.7881 4.40437C15.9331 4.55365 16.0142 4.75384 16.0141 4.96225C16.0141 5.17418 15.9299 5.37744 15.7801 5.5273C15.6302 5.67715 15.4269 5.76134 15.215 5.76134C15.0031 5.76134 14.7998 5.67715 14.65 5.5273C14.5001 5.37744 14.4159 5.17418 14.4159 4.96225C14.4159 4.85533 14.4373 4.7495 14.4789 4.65101C14.5205 4.55252 14.5814 4.46338 14.6581 4.38887C14.7347 4.31435 14.8256 4.25598 14.9252 4.21721C15.0249 4.17844 15.1313 4.16006 15.2381 4.16315ZM17.0676 5.47871C18.4704 5.74146 19.7992 6.30644 20.9617 7.13439C22.1242 7.96235 23.0926 9.03345 23.7995 10.2733L22.8565 12.4008C22.6947 12.7682 22.8617 13.1999 23.2265 13.3643L25.0406 14.1686C25.0968 14.7356 25.1037 15.3065 25.0611 15.8747H24.0513C23.9511 15.8747 23.91 15.9415 23.91 16.0391V16.5016C23.91 17.5911 23.2959 17.83 22.7563 17.8891C22.2424 17.9482 21.6746 17.6733 21.6026 17.3598C21.2994 15.6563 20.7958 15.294 19.9993 14.6645C20.9885 14.0375 22.0163 13.11 22.0163 11.8715C22.0163 10.5328 21.099 9.69002 20.4747 9.27634C19.5959 8.69822 18.6247 8.5826 18.3626 8.5826H7.93063C9.37312 6.97114 11.3066 5.88021 13.4318 5.47871L14.6626 6.76857C14.9401 7.05891 15.4 7.07176 15.6903 6.79169L17.0676 5.47871ZM5.71063 11.3936C5.91853 11.3996 6.11589 11.4864 6.26079 11.6356C6.40568 11.7849 6.48669 11.9847 6.4866 12.1927C6.4866 12.4046 6.40241 12.6079 6.25255 12.7577C6.10269 12.9076 5.89944 12.9918 5.6875 12.9918C5.47557 12.9918 5.27232 12.9076 5.12246 12.7577C4.9726 12.6079 4.88841 12.4046 4.88841 12.1927C4.88836 12.0858 4.90977 11.9799 4.95137 11.8814C4.99297 11.7829 5.0539 11.6938 5.13057 11.6193C5.20724 11.5448 5.29809 11.4864 5.39772 11.4476C5.49736 11.4089 5.60376 11.3905 5.71063 11.3936ZM24.7631 11.4295C24.971 11.4356 25.1683 11.5224 25.3132 11.6716C25.4581 11.8208 25.5391 12.0206 25.539 12.2286C25.539 12.4406 25.4548 12.6438 25.305 12.7937C25.1551 12.9435 24.9519 13.0277 24.7399 13.0277C24.528 13.0277 24.3247 12.9435 24.1749 12.7937C24.025 12.6438 23.9408 12.4406 23.9408 12.2286C23.9408 12.1217 23.9622 12.0159 24.0038 11.9174C24.0454 11.8189 24.1063 11.7298 24.183 11.6553C24.2597 11.5807 24.3505 11.5224 24.4502 11.4836C24.5498 11.4448 24.6562 11.4264 24.7631 11.4295ZM7.21632 11.558H8.60896V17.8377H5.79799C5.45083 16.6186 5.34264 15.3439 5.47938 14.0838L7.20091 13.3181C7.56834 13.1536 7.73535 12.7245 7.57091 12.3571L7.21632 11.558ZM13.0284 11.6248H16.3456C16.5177 11.6248 17.5558 11.8227 17.5558 12.6012C17.5558 13.2461 16.7592 13.4774 16.104 13.4774H13.0258L13.0284 11.6248ZM13.0284 16.1368H15.5696C15.8008 16.1368 16.8106 16.2036 17.1318 17.4934C17.232 17.8891 17.4556 19.179 17.6072 19.5927C17.7588 20.0552 18.3729 20.9802 19.0281 20.9802H23.1751C22.8972 21.3524 22.5933 21.7044 22.2656 22.0336L20.5774 21.6713C20.1843 21.5866 19.7963 21.8384 19.7115 22.2315L19.3107 24.102C18.0217 24.6859 16.622 24.9848 15.2069 24.9781C13.7919 24.9714 12.395 24.6595 11.1116 24.0635L10.7108 22.1929C10.626 21.7998 10.2406 21.548 9.84743 21.6328L8.19528 21.9874C7.88869 21.6711 7.6037 21.3346 7.34223 20.9802H15.3769C15.4668 20.9802 15.5285 20.9647 15.5285 20.88V18.0381C15.5285 17.9559 15.4668 17.9379 15.3769 17.9379H13.0258L13.0284 16.1368ZM9.3207 22.6452C9.5286 22.6512 9.72596 22.738 9.87085 22.8872C10.0157 23.0364 10.0968 23.2363 10.0967 23.4443C10.0967 23.6562 10.0125 23.8594 9.86262 24.0093C9.71276 24.1592 9.50951 24.2434 9.29757 24.2434C9.08564 24.2434 8.88239 24.1592 8.73253 24.0093C8.58267 23.8594 8.49848 23.6562 8.49848 23.4443C8.49843 23.3373 8.51984 23.2315 8.56144 23.133C8.60303 23.0345 8.66397 22.9454 8.74064 22.8709C8.81731 22.7964 8.90815 22.738 9.00779 22.6992C9.10743 22.6605 9.21383 22.6421 9.3207 22.6452ZM21.153 22.6811C21.3609 22.6872 21.5583 22.774 21.7031 22.9232C21.848 23.0724 21.929 23.2722 21.929 23.4802C21.929 23.6922 21.8448 23.8954 21.6949 24.0453C21.5451 24.1951 21.3418 24.2793 21.1299 24.2793C20.9179 24.2793 20.7147 24.1951 20.5648 24.0453C20.415 23.8954 20.3308 23.6922 20.3308 23.4802C20.3307 23.3733 20.3521 23.2675 20.3937 23.169C20.4353 23.0705 20.4963 22.9814 20.5729 22.9068C20.6496 22.8323 20.7404 22.774 20.8401 22.7352C20.9397 22.6964 21.0461 22.678 21.153 22.6811Z" fill="black">
</path>
<path clip-rule="evenodd" d="M26.7232 15.2304C26.7232 18.2717 25.515 21.1885 23.3645 23.3391C21.2139 25.4896 18.2971 26.6978 15.2558 26.6978C12.2144 26.6978 9.29761 25.4896 7.14705 23.3391C4.99649 21.1885 3.78832 18.2717 3.78832 15.2304C3.78832 12.189 4.99649 9.27222 7.14705 7.12166C9.29761 4.9711 12.2144 3.76293 15.2558 3.76293C18.2971 3.76293 21.2139 4.9711 23.3645 7.12166C25.515 9.27222 26.7232 12.189 26.7232 15.2304ZM26.5073 14.1229L28.2957 15.2304L26.5073 16.3378L28.0439 17.7741L26.0757 18.5115L27.3039 20.2202L25.2252 20.5594L26.0988 22.4762L23.9944 22.4017L24.4775 24.4521L22.4271 23.969L22.5016 26.0734L20.5848 25.1998L20.2456 27.2785L18.5369 26.0503L17.7995 28.0185L16.3632 26.482L15.2558 28.2703L14.1483 26.482L12.712 28.0185L11.9746 26.0503L10.2659 27.2785L9.92672 25.1998L8.00992 26.0734L8.08443 23.969L6.03401 24.4521L6.51707 22.4017L4.4127 22.4762L5.28631 20.5594L3.20763 20.2202L4.43582 18.5115L2.46763 17.7741L4.00415 16.3378L2.21582 15.2304L4.00415 14.1229L2.46763 12.6866L4.43582 11.9492L3.20763 10.2405L5.28631 9.90133L4.4127 7.98453L6.51707 8.05904L6.03401 6.00862L8.08443 6.49168L8.00992 4.3873L9.92672 5.26092L10.2659 3.18223L11.9746 4.41043L12.712 2.44224L14.1483 3.97876L15.2558 2.19043L16.3632 3.97876L17.7995 2.44224L18.5369 4.41043L20.2456 3.18223L20.5848 5.26092L22.5016 4.3873L22.4271 6.49168L24.4775 6.00862L23.9944 8.05904L26.0988 7.98453L25.2252 9.90133L27.3039 10.2405L26.0757 11.9492L28.0439 12.6866L26.5073 14.1229Z" fill="black" fill-rule="evenodd" stroke-linecap="round" stroke-linejoin="round">
</path>
</g>
<defs>
<clippath id="clip0_5454_14623">
<rect fill="black" height="30" width="30">
</rect>
</clippath>
</defs>
</svg>
<span>
Rust
</span>
</a>
<a class="leafygreen-ui-18cpm0b" href="https://www.mongodb.com/docs/languages/scala/scala-driver/current/tutorials/aggregation/" target="_self">
<svg class="leafygreen-ui-x3zji3" height="24" viewbox="0 0 70 70" width="24" xmlns="http://www.w3.org/2000/svg">
<defs>
<lineargradient id=":R1sv5qcmqn9:aaa" x1=".006%" x2="96.837%" y1="49.998%" y2="49.998%">
<stop offset="0%" stop-color="#CD413F">
</stop>
<stop offset="75.091%" stop-color="#CD4543">
</stop>
<stop offset="100%" stop-color="#D04543">
</stop>
</lineargradient>
</defs>
<g fill="none" fill-rule="nonzero">
<path d="M13 39v5c0 .843 17.73 2.255 29.28 5 5.582-1.327 9.72-2.966 9.72-5v-5c0-2.034-4.138-3.673-9.72-5C30.73 36.745 13 38.157 13 39M13 20v5c0 .843 17.73 2.255 29.28 5 5.582-1.327 9.72-2.966 9.72-5v-5c0-2.034-4.138-3.673-9.72-5C30.73 17.745 13 19.157 13 20" fill="#731818">
</path>
<g fill="url(#:R1sv5qcmqn9:aaa)" transform="translate(13)">
<path d="M0 29.53v14.766c0-1.232 39-3.692 39-9.844V19.686c0 6.152-39 8.612-39 9.844M0 9.843V24.61c0-1.231 39-3.691 39-9.843V0C39 6.152 0 8.612 0 9.843M0 49.216v14.766c0-1.231 39-3.691 39-9.843V39.373c0 6.151-39 8.612-39 9.843">
</path>
</g>
</g>
</svg>
<span>
Scala
</span>
</a>
</div>
<button class="leafygreen-ui-ki2t97">
Show all
<svg aria-label="Chevron Down Icon" class="" fill="none" height="16" role="img" viewbox="0 0 16 16" width="16" xmlns="http://www.w3.org/2000/svg">
<path clip-rule="evenodd" d="M1.636 5.364a1 1 0 0 0 0 1.414l4.95 4.95.707.707a1 1 0 0 0 1.414 0l.707-.707 4.95-4.95a1 1 0 0 0 0-1.414l-.707-.707a1 1 0 0 0-1.414 0L8 8.899 3.757 4.657a1 1 0 0 0-1.414 0l-.707.707Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</button>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Definition
<a class="headerlink leafygreen-ui-1kepx47" href="#definition" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="definition">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
Use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/collStats/#mongodb-pipeline-pipe.-collStats">
<code class="leafygreen-ui-1l06pbn">
$collStats
</code>
</a>
aggregation stage instead
of the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/collStats/#mongodb-dbcommand-dbcmd.collStats">
<code class="leafygreen-ui-1l06pbn">
collStats
</code>
</a>
command and its
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
helper method
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-db.collection.stats" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
db.collection.stats()
</code>
.
</span>
</a>
</p>
<dl class="method">
<dt>
<code class="leafygreen-ui-1l06pbn">
db.collection.stats(<option>)
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-method-db.collection.stats" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-method-db.collection.stats">
</div>
</a>
</dt>
<dd>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
mongosh Method
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
This page documents a
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
method. This is
<em>
not
</em>
the documentation for database commands or language-specific drivers,
such as Node.js.
</p>
<p class="leafygreen-ui-1kp3ins">
For the database command, see the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/collStats/#mongodb-dbcommand-dbcmd.collStats">
<code class="leafygreen-ui-1l06pbn">
collStats
</code>
</a>
command
<!-- -->
.
</p>
<p class="leafygreen-ui-1kp3ins">
For MongoDB API drivers, refer to the language-specific
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/drivers/" target="_self">
<span>
MongoDB driver documentation
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Returns statistics about the collection.
</p>
<p class="leafygreen-ui-1kp3ins">
The method has the following format:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.collection.stats({\n scale: <num>, // Optional\n indexDetails: <boolean>, // Optional\n indexDetailsKey: <document>, // Optional\n indexDetailsName: <string>. // Optional\n})","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">collection</span>.<span class="lg-highlight-title lg-highlight-function">stats</span>(<!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">scale</span>: <<!-- -->num<!-- -->><!-- -->,<!-- --> <span class="lg-highlight-comment">// Optional</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">indexDetails</span>: <<!-- -->boolean<!-- -->><!-- -->,<!-- --> <span class="lg-highlight-comment">// Optional</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">indexDetailsKey</span>: <<span class="lg-highlight-variable lg-highlight-language">document</span>><!-- -->,<!-- --> <span class="lg-highlight-comment">// Optional</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">indexDetailsName</span>: <<!-- -->string<!-- -->><!-- -->. <span class="lg-highlight-comment">// Optional</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">})</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:20%"/>
<col style="width:20%"/>
<col style="width:80%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Field
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Type
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
scale
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
number
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Optional. The scale factor for the various size data. The
<code class="leafygreen-ui-1l06pbn">
scale
</code>
defaults
to 1 to return size data in bytes. To display kilobytes rather than
bytes, specify a
<code class="leafygreen-ui-1l06pbn">
scale
</code>
value of
<code class="leafygreen-ui-1l06pbn">
1024
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
If you specify a non-integer scale factor, MongoDB uses the integer
part of the specified factor. For example, if you specify a scale
factor of
<code class="leafygreen-ui-1l06pbn">
1023.999
</code>
, MongoDB uses
<code class="leafygreen-ui-1l06pbn">
1023
</code>
as the scale factor.
</p>
<p class="leafygreen-ui-1kp3ins">
Starting in version 4.2, the output includes the
<code class="leafygreen-ui-1l06pbn">
scaleFactor
</code>
used to scale the size values.
</p>
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
indexDetails
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
boolean
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Optional. If
<code class="leafygreen-ui-1l06pbn">
true
</code>
,
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-db.collection.stats" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
db.collection.stats()
</code>
</span>
</a>
returns
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/collStats/#mongodb-data-collStats.indexDetails">
<code class="leafygreen-ui-1l06pbn">
index details
</code>
</a>
in addition to the collection stats.
</p>
<p class="leafygreen-ui-1kp3ins">
Only works for
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/wiredtiger/#std-label-storage-wiredtiger">
WiredTiger
</a>
storage engine.
</p>
<p class="leafygreen-ui-1kp3ins">
Defaults to
<code class="leafygreen-ui-1l06pbn">
false
</code>
.
</p>
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
indexDetailsKey
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
document
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Optional. If
<code class="leafygreen-ui-1l06pbn">
indexDetails
</code>
is
<code class="leafygreen-ui-1l06pbn">
true
</code>
, you can use
<code class="leafygreen-ui-1l06pbn">
indexDetailsKey
</code>
to filter
index details by specifying the index key specification.
Only the index that exactly matches
<code class="leafygreen-ui-1l06pbn">
indexDetailsKey
</code>
will be returned.
</p>
<p class="leafygreen-ui-1kp3ins">
If no match is found,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/collStats/#mongodb-data-collStats.indexDetails">
<code class="leafygreen-ui-1l06pbn">
indexDetails
</code>
</a>
will display
statistics for all indexes.
</p>
<p class="leafygreen-ui-1kp3ins">
Use
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.getIndexes/#mongodb-method-db.collection.getIndexes">
<code class="leafygreen-ui-1l06pbn">
getIndexes()
</code>
</a>
to discover index keys. You cannot
use
<code class="leafygreen-ui-1l06pbn">
indexDetailsKey
</code>
with
<code class="leafygreen-ui-1l06pbn">
indexDetailsName
</code>
.
</p>
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
indexDetailsName
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
string
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Optional. If
<code class="leafygreen-ui-1l06pbn">
indexDetails
</code>
is
<code class="leafygreen-ui-1l06pbn">
true
</code>
, you can use
<code class="leafygreen-ui-1l06pbn">
indexDetailsName
</code>
to
filter index details by specifying the index
<code class="leafygreen-ui-1l06pbn">
name
</code>
.
Only the index name that exactly
matches
<code class="leafygreen-ui-1l06pbn">
indexDetailsName
</code>
will be returned.
</p>
<p class="leafygreen-ui-1kp3ins">
If no match is found,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/collStats/#mongodb-data-collStats.indexDetails">
<code class="leafygreen-ui-1l06pbn">
indexDetails
</code>
</a>
will display
statistics for all indexes.
</p>
<p class="leafygreen-ui-1kp3ins">
Use
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.getIndexes/#mongodb-method-db.collection.getIndexes">
<code class="leafygreen-ui-1l06pbn">
getIndexes()
</code>
</a>
to discover index names. You cannot
use
<code class="leafygreen-ui-1l06pbn">
indexDetailsName
</code>
with
<code class="leafygreen-ui-1l06pbn">
indexDetailsField
</code>
.
</p>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<p class="leafygreen-ui-1kp3ins">
To specify just the
<code class="leafygreen-ui-1l06pbn">
scale
</code>
factor, MongoDB supports the legacy
format:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.collection.stats(<number>)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">collection</span>.<span class="lg-highlight-title lg-highlight-function">stats</span>(<<!-- -->number<!-- -->><!-- -->)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<table class="css-11h39yh e1nex8bq0">
<colgroup>
<col class="field-name"/>
<col class="field-body"/>
</colgroup>
<tbody>
<tr class="css-x8snli">
<th>
Returns
<!-- -->
:
</th>
<td>
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-document">
document
</a>
that contains statistics on the specified
collection. See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/collStats/#mongodb-dbcommand-dbcmd.collStats">
<code class="leafygreen-ui-1l06pbn">
collStats
</code>
</a>
for a breakdown of the returned
statistics.
</td>
</tr>
</tbody>
</table>
</dd>
</dl>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Behavior
<a class="headerlink leafygreen-ui-1kepx47" href="#behavior" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="behavior">
</div>
</a>
</h2>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Scaled Sizes
<a class="headerlink leafygreen-ui-1kepx47" href="#scaled-sizes" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="scaled-sizes">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Unless otherwise specified by the metric name (such as
<code class="leafygreen-ui-1l06pbn">
"bytes
currently in the cache"
</code>
), values related to size are displayed in
bytes and can be overridden by
<code class="leafygreen-ui-1l06pbn">
scale
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
The scale factor rounds the affected size values to whole numbers.
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Storage Engine
<a class="headerlink leafygreen-ui-1kepx47" href="#storage-engine" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="storage-engine">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Depending on the storage engine, the data returned may differ. For details on
the fields, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/collStats/#std-label-collStats-output">
output details
<!-- -->
.
</a>
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Accuracy after Unexpected Shutdown
<a class="headerlink leafygreen-ui-1kepx47" href="#accuracy-after-unexpected-shutdown" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="accuracy-after-unexpected-shutdown">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
After an unclean shutdown of a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
using the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/wiredtiger/">
Wired Tiger
</a>
storage engine,
<!-- -->
count and size
<!-- -->
statistics reported by
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-db.collection.stats" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
db.collection.stats()
</code>
</span>
</a>
may be inaccurate.
</p>
<p class="leafygreen-ui-1kp3ins">
The amount of drift depends on the number of insert, update, or delete
operations performed between the last
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/wiredtiger/#std-label-storage-wiredtiger-checkpoints">
checkpoint
</a>
and the unclean shutdown. Checkpoints
usually occur every 60 seconds. However,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
instances running
with non-default
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#std-option-mongod.--syncdelay">
<code class="leafygreen-ui-1l06pbn">
--syncdelay
</code>
</a>
settings may have more or less frequent
checkpoints.
</p>
<p class="leafygreen-ui-1kp3ins">
Run
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/validate/#mongodb-dbcommand-dbcmd.validate">
<code class="leafygreen-ui-1l06pbn">
validate
</code>
</a>
on each collection on the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
to restore statistics after an unclean shutdown.
</p>
<p class="leafygreen-ui-1kp3ins">
After an unclean shutdown:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/validate/#mongodb-dbcommand-dbcmd.validate">
<code class="leafygreen-ui-1l06pbn">
validate
</code>
</a>
updates the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/collStats/#std-label-collstat-count">
count statistic
</a>
in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/collStats/#mongodb-dbcommand-dbcmd.collStats">
<code class="leafygreen-ui-1l06pbn">
collStats
</code>
</a>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/collStats/#std-label-collStats-output">
output
</a>
with the latest value.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Other statistics like the number of documents inserted or removed in
the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/collStats/#mongodb-dbcommand-dbcmd.collStats">
<code class="leafygreen-ui-1l06pbn">
collStats
</code>
</a>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/collStats/#std-label-collStats-output">
output
</a>
are
estimates.
</p>
</li>
</ul>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Replica Set Member State Restriction
<a class="headerlink leafygreen-ui-1kepx47" href="#replica-set-member-state-restriction" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="replica-set-member-state-restriction">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
To run on a replica set member,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/collStats/#mongodb-dbcommand-dbcmd.collStats">
<code class="leafygreen-ui-1l06pbn">
collStats
</code>
</a>
operations require the member
to be in
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-states/#mongodb-replstate-replstate.PRIMARY">
<code class="leafygreen-ui-1l06pbn">
PRIMARY
</code>
</a>
or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-states/#mongodb-replstate-replstate.SECONDARY">
<code class="leafygreen-ui-1l06pbn">
SECONDARY
</code>
</a>
state. If the member
is in another state, such as
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-states/#mongodb-replstate-replstate.STARTUP2">
<code class="leafygreen-ui-1l06pbn">
STARTUP2
</code>
</a>
, the
operation errors.
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Index Filter Behavior
<a class="headerlink leafygreen-ui-1kepx47" href="#index-filter-behavior" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="index-filter-behavior">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Filtering on
<code class="leafygreen-ui-1l06pbn">
indexDetails
</code>
using either
<code class="leafygreen-ui-1l06pbn">
indexDetailsKey
</code>
or
<code class="leafygreen-ui-1l06pbn">
indexDetailsName
</code>
will only return a single matching index.
If no exact match is found,
<code class="leafygreen-ui-1l06pbn">
indexDetails
</code>
will show information
on all indexes for the collection.
</p>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
indexDetailsKey
</code>
field takes a document of the following form:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ '<string>' : <value>, '<string>' : <value>, ... }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">'<string>'</span> <!-- -->: <<!-- -->value<!-- -->><!-- -->,<!-- --> <span class="lg-highlight-string">'<string>'</span> <!-- -->: <<!-- -->value<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Where
<code class="leafygreen-ui-1l06pbn">
<string>>
</code>
is the field that is indexed and
<code class="leafygreen-ui-1l06pbn">
<value>
</code>
is either
the direction of the index, or the special index type such as
<code class="leafygreen-ui-1l06pbn">
text
</code>
or
<code class="leafygreen-ui-1l06pbn">
2dsphere
</code>
. See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/#std-label-index-types">
index types
</a>
for the full list of
index types.
</p>
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 8.0, use query settings instead of adding
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/query-plans/#std-label-index-filters">
index filters
</a>
. Index filters are deprecated
starting in MongoDB 8.0.
</p>
<p class="leafygreen-ui-1kp3ins">
Query settings have more functionality than index filters. Also, index
filters aren't persistent and you cannot easily create index filters for
all cluster nodes. To add query settings and explore examples, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/setQuerySettings/#mongodb-dbcommand-dbcmd.setQuerySettings">
<code class="leafygreen-ui-1l06pbn">
setQuerySettings
</code>
.
</a>
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Unexpected Shutdown and Count
<a class="headerlink leafygreen-ui-1kepx47" href="#unexpected-shutdown-and-count" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="unexpected-shutdown-and-count">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
For MongoDB instances using the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/wiredtiger/#std-label-storage-wiredtiger">
WiredTiger
</a>
storage engine, after an unclean shutdown, statistics on size and count
may off by up to 1000 documents as reported by
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/collStats/#mongodb-dbcommand-dbcmd.collStats">
<code class="leafygreen-ui-1l06pbn">
collStats
</code>
</a>
,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/dbStats/#mongodb-dbcommand-dbcmd.dbStats">
<code class="leafygreen-ui-1l06pbn">
dbStats
</code>
</a>
,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/count/#mongodb-dbcommand-dbcmd.count">
<code class="leafygreen-ui-1l06pbn">
count
</code>
</a>
. To restore the correct
statistics for the collection, run
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/validate/#mongodb-dbcommand-dbcmd.validate">
<code class="leafygreen-ui-1l06pbn">
validate
</code>
</a>
on the
collection.
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
In-Progress Indexes
<a class="headerlink leafygreen-ui-1kepx47" href="#in-progress-indexes" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="in-progress-indexes">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-db.collection.stats" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
db.collection.stats()
</code>
</span>
</a>
includes information on indexes currently
being built. For details, see:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/collStats/#mongodb-data-collStats.nindexes">
<code class="leafygreen-ui-1l06pbn">
collStats.nindexes
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/collStats/#mongodb-data-collStats.indexDetails">
<code class="leafygreen-ui-1l06pbn">
collStats.indexDetails
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/collStats/#mongodb-data-collStats.indexBuilds">
<code class="leafygreen-ui-1l06pbn">
collStats.indexBuilds
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/collStats/#mongodb-data-collStats.totalIndexSize">
<code class="leafygreen-ui-1l06pbn">
collStats.totalIndexSize
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/collStats/#mongodb-data-collStats.indexSizes">
<code class="leafygreen-ui-1l06pbn">
collStats.indexSizes
</code>
</a>
</p>
</li>
</ul>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Examples
<a class="headerlink leafygreen-ui-1kepx47" href="#examples" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="examples">
</div>
</a>
</h2>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
You can find the collection data used for these examples in our
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://raw.githubusercontent.com/mongodb/docs-assets/primer-dataset/primer-dataset.json" rel="noopener noreferrer">
<span>
primer-dataset.json
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</div>
</div>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Basic Stats Lookup
<a class="headerlink leafygreen-ui-1kepx47" href="#basic-stats-lookup" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="basic-stats-lookup">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The following operation returns stats on the
<code class="leafygreen-ui-1l06pbn">
restaurants
</code>
collection
in the
<code class="leafygreen-ui-1l06pbn">
test
</code>
database:
</p>
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{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.restaurants.stats()","programmingLanguage":"JavaScript"}
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<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">restaurants</span>.<span class="lg-highlight-title lg-highlight-function">stats</span>(<!-- -->)</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
The operation returns:
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{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n \"ns\" : \"test.restaurants\",\n \"size\" : 7557340,\n \"count\" : 25359,\n \"avgObjSize\" : 298,\n \"storageSize\" : 9670656,\n \"freeStorageSize\" : 6660096,\n \"capped\" : false,\n \"wiredTiger\" : {\n \"metadata\" : {\n \"formatVersion\" : 1\n },\n \"creationString\" : \"access_pattern_hint=none,allocation_size=4KB,app_metadata=(formatVersion=1),assert=(commit_timestamp=none,durable_timestamp=none,read_timestamp=none),block_allocation=best,block_compressor=snappy,cache_resident=false,checksum=on,colgroups=,collator=,columns=,dictionary=0,encryption=(keyid=,name=),exclusive=false,extractor=,format=btree,huffman_key=,huffman_value=,ignore_in_memory_cache_size=false,immutable=false,internal_item_max=0,internal_key_max=0,internal_key_truncate=true,internal_page_max=4KB,key_format=q,key_gap=10,leaf_item_max=0,leaf_key_max=0,leaf_page_max=32KB,leaf_value_max=64MB,log=(enabled=true),lsm=(auto_throttle=true,bloom=true,bloom_bit_count=16,bloom_config=,bloom_hash_count=8,bloom_oldest=false,chunk_count_limit=0,chunk_max=5GB,chunk_size=10MB,merge_custom=(prefix=,start_generation=0,suffix=),merge_max=15,merge_min=0),memory_page_image_max=0,memory_page_max=10m,os_cache_dirty_max=0,os_cache_max=0,prefix_compression=false,prefix_compression_min=4,source=,split_deepen_min_child=0,split_deepen_per_child=0,split_pct=90,type=file,value_format=u\",\n \"type\" : \"file\",\n \"uri\" : \"statistics:table:collection-43-6797839137631957852\",\n \"LSM\" : {\n \"bloom filter false positives\" : 0,\n \"bloom filter hits\" : 0,\n \"bloom filter misses\" : 0,\n \"bloom filter pages evicted from cache\" : 0,\n \"bloom filter pages read into cache\" : 0,\n \"bloom filters in the LSM tree\" : 0,\n \"chunks in the LSM tree\" : 0,\n \"highest merge generation in the LSM tree\" : 0,\n \"queries that could have benefited from a Bloom filter that did not exist\" : 0,\n \"sleep for LSM checkpoint throttle\" : 0,\n \"sleep for LSM merge throttle\" : 0,\n \"total size of bloom filters\" : 0\n },\n \"block-manager\" : {\n \"allocations requiring file extension\" : 460,\n \"blocks allocated\" : 556,\n \"blocks freed\" : 420,\n \"checkpoint size\" : 2994176,\n \"file allocation unit size\" : 4096,\n \"file bytes available for reuse\" : 6660096,\n \"file magic number\" : 120897,\n \"file major version number\" : 1,\n \"file size in bytes\" : 9670656,\n \"minor version number\" : 0\n },\n \"btree\" : {\n \"btree checkpoint generation\" : 58,\n \"column-store fixed-size leaf pages\" : 0,\n \"column-store internal pages\" : 0,\n \"column-store variable-size RLE encoded values\" : 0,\n \"column-store variable-size deleted values\" : 0,\n \"column-store variable-size leaf pages\" : 0,\n \"fixed-record size\" : 0,\n \"maximum internal page key size\" : 368,\n \"maximum internal page size\" : 4096,\n \"maximum leaf page key size\" : 2867,\n \"maximum leaf page size\" : 32768,\n \"maximum leaf page value size\" : 67108864,\n \"maximum tree depth\" : 3,\n \"number of key/value pairs\" : 0,\n \"overflow pages\" : 0,\n \"pages rewritten by compaction\" : 0,\n \"row-store empty values\" : 0,\n \"row-store internal pages\" : 0,\n \"row-store leaf pages\" : 0\n },\n \"cache\" : {\n \"bytes currently in the cache\" : 19401033,\n \"bytes dirty in the cache cumulative\" : 28415209,\n \"bytes read into cache\" : 0,\n \"bytes written from cache\" : 31893695,\n \"checkpoint blocked page eviction\" : 0,\n \"data source pages selected for eviction unable to be evicted\" : 0,\n \"eviction walk passes of a file\" : 0,\n \"eviction walk target pages histogram - 0-9\" : 0,\n \"eviction walk target pages histogram - 10-31\" : 0,\n \"eviction walk target pages histogram - 128 and higher\" : 0,\n \"eviction walk target pages histogram - 32-63\" : 0,\n \"eviction walk target pages histogram - 64-128\" : 0,\n \"eviction walks abandoned\" : 0,\n \"eviction walks gave up because they restarted their walk twice\" : 0,\n \"eviction walks gave up because they saw too many pages and found no candidates\" : 0,\n \"eviction walks gave up because they saw too many pages and found too few candidates\" : 0,\n \"eviction walks reached end of tree\" : 0,\n \"eviction walks started from root of tree\" : 0,\n \"eviction walks started from saved location in tree\" : 0,\n \"hazard pointer blocked page eviction\" : 0,\n \"in-memory page passed criteria to be split\" : 4,\n \"in-memory page splits\" : 2,\n \"internal pages evicted\" : 0,\n \"internal pages split during eviction\" : 0,\n \"leaf pages split during eviction\" : 2,\n \"modified pages evicted\" : 2,\n \"overflow pages read into cache\" : 0,\n \"page split during eviction deepened the tree\" : 0,\n \"page written requiring cache overflow records\" : 0,\n \"pages read into cache\" : 0,\n \"pages read into cache after truncate\" : 1,\n \"pages read into cache after truncate in prepare state\" : 0,\n \"pages read into cache requiring cache overflow entries\" : 0,\n \"pages requested from the cache\" : 76607,\n \"pages seen by eviction walk\" : 0,\n \"pages written from cache\" : 552,\n \"pages written requiring in-memory restoration\" : 0,\n \"tracked dirty bytes in the cache\" : 0,\n \"unmodified pages evicted\" : 0\n },\n \"cache_walk\" : {\n \"Average difference between current eviction generation when the page was last considered\" : 0,\n \"Average on-disk page image size seen\" : 0,\n \"Average time in cache for pages that have been visited by the eviction server\" : 0,\n \"Average time in cache for pages that have not been visited by the eviction server\" : 0,\n \"Clean pages currently in cache\" : 0,\n \"Current eviction generation\" : 0,\n \"Dirty pages currently in cache\" : 0,\n \"Entries in the root page\" : 0,\n \"Internal pages currently in cache\" : 0,\n \"Leaf pages currently in cache\" : 0,\n \"Maximum difference between current eviction generation when the page was last considered\" : 0,\n \"Maximum page size seen\" : 0,\n \"Minimum on-disk page image size seen\" : 0,\n \"Number of pages never visited by eviction server\" : 0,\n \"On-disk page image sizes smaller than a single allocation unit\" : 0,\n \"Pages created in memory and never written\" : 0,\n \"Pages currently queued for eviction\" : 0,\n \"Pages that could not be queued for eviction\" : 0,\n \"Refs skipped during cache traversal\" : 0,\n \"Size of the root page\" : 0,\n \"Total number of pages currently in cache\" : 0\n },\n \"compression\" : {\n \"compressed page maximum internal page size prior to compression\" : 4096,\n \"compressed page maximum leaf page size prior to compression \" : 111392,\n \"compressed pages read\" : 0,\n \"compressed pages written\" : 548,\n \"page written failed to compress\" : 0,\n \"page written was too small to compress\" : 4\n },\n \"cursor\" : {\n \"bulk loaded cursor insert calls\" : 0,\n \"cache cursors reuse count\" : 74,\n \"close calls that result in cache\" : 0,\n \"create calls\" : 4,\n \"insert calls\" : 50718,\n \"insert key and value bytes\" : 24500283,\n \"modify\" : 0,\n \"modify key and value bytes affected\" : 0,\n \"modify value bytes modified\" : 0,\n \"next calls\" : 101747,\n \"open cursor count\" : 0,\n \"operation restarted\" : 0,\n \"prev calls\" : 1,\n \"remove calls\" : 0,\n \"remove key bytes removed\" : 0,\n \"reserve calls\" : 0,\n \"reset calls\" : 51000,\n \"search calls\" : 25359,\n \"search near calls\" : 25485,\n \"truncate calls\" : 0,\n \"update calls\" : 0,\n \"update key and value bytes\" : 0,\n \"update value size change\" : 0\n },\n \"reconciliation\" : {\n \"dictionary matches\" : 0,\n \"fast-path pages deleted\" : 0,\n \"internal page key bytes discarded using suffix compression\" : 1077,\n \"internal page multi-block writes\" : 1,\n \"internal-page overflow keys\" : 0,\n \"leaf page key bytes discarded using prefix compression\" : 0,\n \"leaf page multi-block writes\" : 12,\n \"leaf-page overflow keys\" : 0,\n \"maximum blocks required for a page\" : 1,\n \"overflow values written\" : 0,\n \"page checksum matches\" : 0,\n \"page reconciliation calls\" : 80,\n \"page reconciliation calls for eviction\" : 2,\n \"pages deleted\" : 0\n },\n \"session\" : {\n \"object compaction\" : 0\n },\n \"transaction\" : {\n \"update conflicts\" : 0\n }\n },\n \"nindexes\" : 4,\n \"indexBuilds\" : [ ],\n \"totalIndexSize\" : 704512,\n \"totalSize\" : 10375168,\n \"indexSizes\" : {\n \"_id_\" : 241664,\n \"cuisine_1\" : 147456,\n \"borough_1_cuisine_1\" : 159744,\n \"borough_1_address.zipcode_1\" : 155648\n },\n \"scaleFactor\" : 1,\n \"ok\" : 1\n}","programmingLanguage":"JavaScript"}
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<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"ns"</span> <!-- -->: <span class="lg-highlight-string">"test.restaurants"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"size"</span> <!-- -->: <span class="lg-highlight-number">7557340</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"count"</span> <!-- -->: <span class="lg-highlight-number">25359</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"avgObjSize"</span> <!-- -->: <span class="lg-highlight-number">298</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"storageSize"</span> <!-- -->: <span class="lg-highlight-number">9670656</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"freeStorageSize"</span> <!-- -->: <span class="lg-highlight-number">6660096</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"capped"</span> <!-- -->: <span class="lg-highlight-literal">false</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"wiredTiger"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"metadata"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"formatVersion"</span> <!-- -->: <span class="lg-highlight-number">1</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"creationString"</span> <!-- -->: <span class="lg-highlight-string">"access_pattern_hint=none,allocation_size=4KB,app_metadata=(formatVersion=1),assert=(commit_timestamp=none,durable_timestamp=none,read_timestamp=none),block_allocation=best,block_compressor=snappy,cache_resident=false,checksum=on,colgroups=,collator=,columns=,dictionary=0,encryption=(keyid=,name=),exclusive=false,extractor=,format=btree,huffman_key=,huffman_value=,ignore_in_memory_cache_size=false,immutable=false,internal_item_max=0,internal_key_max=0,internal_key_truncate=true,internal_page_max=4KB,key_format=q,key_gap=10,leaf_item_max=0,leaf_key_max=0,leaf_page_max=32KB,leaf_value_max=64MB,log=(enabled=true),lsm=(auto_throttle=true,bloom=true,bloom_bit_count=16,bloom_config=,bloom_hash_count=8,bloom_oldest=false,chunk_count_limit=0,chunk_max=5GB,chunk_size=10MB,merge_custom=(prefix=,start_generation=0,suffix=),merge_max=15,merge_min=0),memory_page_image_max=0,memory_page_max=10m,os_cache_dirty_max=0,os_cache_max=0,prefix_compression=false,prefix_compression_min=4,source=,split_deepen_min_child=0,split_deepen_per_child=0,split_pct=90,type=file,value_format=u"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"type"</span> <!-- -->: <span class="lg-highlight-string">"file"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"uri"</span> <!-- -->: <span class="lg-highlight-string">"statistics:table:collection-43-6797839137631957852"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"LSM"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"bloom filter false positives"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"bloom filter hits"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"bloom filter misses"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"bloom filter pages evicted from cache"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"bloom filter pages read into cache"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"bloom filters in the LSM tree"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"chunks in the LSM tree"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"highest merge generation in the LSM tree"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"queries that could have benefited from a Bloom filter that did not exist"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"sleep for LSM checkpoint throttle"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"sleep for LSM merge throttle"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"total size of bloom filters"</span> <!-- -->: <span class="lg-highlight-number">0</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"block-manager"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"allocations requiring file extension"</span> <!-- -->: <span class="lg-highlight-number">460</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"blocks allocated"</span> <!-- -->: <span class="lg-highlight-number">556</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"blocks freed"</span> <!-- -->: <span class="lg-highlight-number">420</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"checkpoint size"</span> <!-- -->: <span class="lg-highlight-number">2994176</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"file allocation unit size"</span> <!-- -->: <span class="lg-highlight-number">4096</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"file bytes available for reuse"</span> <!-- -->: <span class="lg-highlight-number">6660096</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"file magic number"</span> <!-- -->: <span class="lg-highlight-number">120897</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"file major version number"</span> <!-- -->: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"file size in bytes"</span> <!-- -->: <span class="lg-highlight-number">9670656</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"minor version number"</span> <!-- -->: <span class="lg-highlight-number">0</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"btree"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"btree checkpoint generation"</span> <!-- -->: <span class="lg-highlight-number">58</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"column-store fixed-size leaf pages"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"column-store internal pages"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"column-store variable-size RLE encoded values"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"column-store variable-size deleted values"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"column-store variable-size leaf pages"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"fixed-record size"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"maximum internal page key size"</span> <!-- -->: <span class="lg-highlight-number">368</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"maximum internal page size"</span> <!-- -->: <span class="lg-highlight-number">4096</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"maximum leaf page key size"</span> <!-- -->: <span class="lg-highlight-number">2867</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"maximum leaf page size"</span> <!-- -->: <span class="lg-highlight-number">32768</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"maximum leaf page value size"</span> <!-- -->: <span class="lg-highlight-number">67108864</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"maximum tree depth"</span> <!-- -->: <span class="lg-highlight-number">3</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"number of key/value pairs"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"overflow pages"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"pages rewritten by compaction"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"row-store empty values"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"row-store internal pages"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"row-store leaf pages"</span> <!-- -->: <span class="lg-highlight-number">0</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"cache"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"bytes currently in the cache"</span> <!-- -->: <span class="lg-highlight-number">19401033</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"bytes dirty in the cache cumulative"</span> <!-- -->: <span class="lg-highlight-number">28415209</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"bytes read into cache"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"bytes written from cache"</span> <!-- -->: <span class="lg-highlight-number">31893695</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"checkpoint blocked page eviction"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"data source pages selected for eviction unable to be evicted"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"eviction walk passes of a file"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"eviction walk target pages histogram - 0-9"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"eviction walk target pages histogram - 10-31"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"eviction walk target pages histogram - 128 and higher"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"eviction walk target pages histogram - 32-63"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"eviction walk target pages histogram - 64-128"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"eviction walks abandoned"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"eviction walks gave up because they restarted their walk twice"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"eviction walks gave up because they saw too many pages and found no candidates"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"eviction walks gave up because they saw too many pages and found too few candidates"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"eviction walks reached end of tree"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"eviction walks started from root of tree"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"eviction walks started from saved location in tree"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"hazard pointer blocked page eviction"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"in-memory page passed criteria to be split"</span> <!-- -->: <span class="lg-highlight-number">4</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"in-memory page splits"</span> <!-- -->: <span class="lg-highlight-number">2</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"internal pages evicted"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"internal pages split during eviction"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"leaf pages split during eviction"</span> <!-- -->: <span class="lg-highlight-number">2</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"modified pages evicted"</span> <!-- -->: <span class="lg-highlight-number">2</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"overflow pages read into cache"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"page split during eviction deepened the tree"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"page written requiring cache overflow records"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"pages read into cache"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"pages read into cache after truncate"</span> <!-- -->: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"pages read into cache after truncate in prepare state"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"pages read into cache requiring cache overflow entries"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"pages requested from the cache"</span> <!-- -->: <span class="lg-highlight-number">76607</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"pages seen by eviction walk"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"pages written from cache"</span> <!-- -->: <span class="lg-highlight-number">552</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"pages written requiring in-memory restoration"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"tracked dirty bytes in the cache"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"unmodified pages evicted"</span> <!-- -->: <span class="lg-highlight-number">0</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"cache_walk"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"Average difference between current eviction generation when the page was last considered"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"Average on-disk page image size seen"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"Average time in cache for pages that have been visited by the eviction server"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"Average time in cache for pages that have not been visited by the eviction server"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"Clean pages currently in cache"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"Current eviction generation"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"Dirty pages currently in cache"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"Entries in the root page"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"Internal pages currently in cache"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"Leaf pages currently in cache"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"Maximum difference between current eviction generation when the page was last considered"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"Maximum page size seen"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"Minimum on-disk page image size seen"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"Number of pages never visited by eviction server"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"On-disk page image sizes smaller than a single allocation unit"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"Pages created in memory and never written"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"Pages currently queued for eviction"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"Pages that could not be queued for eviction"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"Refs skipped during cache traversal"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"Size of the root page"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"Total number of pages currently in cache"</span> <!-- -->: <span class="lg-highlight-number">0</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"compression"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"compressed page maximum internal page size prior to compression"</span> <!-- -->: <span class="lg-highlight-number">4096</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"compressed page maximum leaf page size prior to compression "</span> <!-- -->: <span class="lg-highlight-number">111392</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"compressed pages read"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"compressed pages written"</span> <!-- -->: <span class="lg-highlight-number">548</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"page written failed to compress"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"page written was too small to compress"</span> <!-- -->: <span class="lg-highlight-number">4</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"cursor"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"bulk loaded cursor insert calls"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"cache cursors reuse count"</span> <!-- -->: <span class="lg-highlight-number">74</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"close calls that result in cache"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"create calls"</span> <!-- -->: <span class="lg-highlight-number">4</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"insert calls"</span> <!-- -->: <span class="lg-highlight-number">50718</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"insert key and value bytes"</span> <!-- -->: <span class="lg-highlight-number">24500283</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"modify"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"modify key and value bytes affected"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"modify value bytes modified"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"next calls"</span> <!-- -->: <span class="lg-highlight-number">101747</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"open cursor count"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"operation restarted"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"prev calls"</span> <!-- -->: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"remove calls"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"remove key bytes removed"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"reserve calls"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"reset calls"</span> <!-- -->: <span class="lg-highlight-number">51000</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"search calls"</span> <!-- -->: <span class="lg-highlight-number">25359</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"search near calls"</span> <!-- -->: <span class="lg-highlight-number">25485</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"truncate calls"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"update calls"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"update key and value bytes"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"update value size change"</span> <!-- -->: <span class="lg-highlight-number">0</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"reconciliation"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"dictionary matches"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"fast-path pages deleted"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"internal page key bytes discarded using suffix compression"</span> <!-- -->: <span class="lg-highlight-number">1077</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"internal page multi-block writes"</span> <!-- -->: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"internal-page overflow keys"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"leaf page key bytes discarded using prefix compression"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"leaf page multi-block writes"</span> <!-- -->: <span class="lg-highlight-number">12</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"leaf-page overflow keys"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"maximum blocks required for a page"</span> <!-- -->: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"overflow values written"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"page checksum matches"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"page reconciliation calls"</span> <!-- -->: <span class="lg-highlight-number">80</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"page reconciliation calls for eviction"</span> <!-- -->: <span class="lg-highlight-number">2</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"pages deleted"</span> <!-- -->: <span class="lg-highlight-number">0</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"session"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"object compaction"</span> <!-- -->: <span class="lg-highlight-number">0</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"transaction"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"update conflicts"</span> <!-- -->: <span class="lg-highlight-number">0</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"nindexes"</span> <!-- -->: <span class="lg-highlight-number">4</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"indexBuilds"</span> <!-- -->: <!-- -->[ <!-- -->]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"totalIndexSize"</span> <!-- -->: <span class="lg-highlight-number">704512</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"totalSize"</span> <!-- -->: <span class="lg-highlight-number">10375168</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"indexSizes"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"_id_"</span> <!-- -->: <span class="lg-highlight-number">241664</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"cuisine_1"</span> <!-- -->: <span class="lg-highlight-number">147456</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"borough_1_cuisine_1"</span> <!-- -->: <span class="lg-highlight-number">159744</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"borough_1_address.zipcode_1"</span> <!-- -->: <span class="lg-highlight-number">155648</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"scaleFactor"</span> <!-- -->: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"ok"</span> <!-- -->: <span class="lg-highlight-number">1</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
As stats was not give a scale parameter, all size values are in
<code class="leafygreen-ui-1l06pbn">
bytes
</code>
.
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Stats Lookup With Scale
<a class="headerlink leafygreen-ui-1kepx47" href="#stats-lookup-with-scale" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="stats-lookup-with-scale">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The following operation changes the scale of data from
<code class="leafygreen-ui-1l06pbn">
bytes
</code>
to
<code class="leafygreen-ui-1l06pbn">
kilobytes
</code>
by specifying a
<code class="leafygreen-ui-1l06pbn">
scale
</code>
of
<code class="leafygreen-ui-1l06pbn">
1024
</code>
:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.restaurants.stats( { scale : 1024 } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">restaurants</span>.<span class="lg-highlight-title lg-highlight-function">stats</span>( <!-- -->{ <!-- -->scale <!-- -->: <span class="lg-highlight-number">1024</span> } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The operation returns:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n \"ns\" : \"test.restaurants\",\n \"size\" : 7380,\n \"count\" : 25359,\n \"avgObjSize\" : 298,\n \"storageSize\" : 9444,\n \"freeStorageSize\" : 6504,\n \"capped\" : false,\n \"wiredTiger\" : {\n ...\n },\n \"nindexes\" : 4,\n \"indexBuilds\" : [ ],\n \"totalIndexSize\" : 688,\n \"totalSize\" : 10132,\n \"indexSizes\" : {\n \"_id_\" : 236,\n \"cuisine_1\" : 144,\n \"borough_1_cuisine_1\" : 156,\n \"borough_1_address.zipcode_1\" : 152\n },\n \"scaleFactor\" : 1024,\n \"ok\" : 1\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"ns"</span> <!-- -->: <span class="lg-highlight-string">"test.restaurants"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"size"</span> <!-- -->: <span class="lg-highlight-number">7380</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"count"</span> <!-- -->: <span class="lg-highlight-number">25359</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"avgObjSize"</span> <!-- -->: <span class="lg-highlight-number">298</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"storageSize"</span> <!-- -->: <span class="lg-highlight-number">9444</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"freeStorageSize"</span> <!-- -->: <span class="lg-highlight-number">6504</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"capped"</span> <!-- -->: <span class="lg-highlight-literal">false</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"wiredTiger"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"nindexes"</span> <!-- -->: <span class="lg-highlight-number">4</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"indexBuilds"</span> <!-- -->: <!-- -->[ <!-- -->]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"totalIndexSize"</span> <!-- -->: <span class="lg-highlight-number">688</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"totalSize"</span> <!-- -->: <span class="lg-highlight-number">10132</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"indexSizes"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"_id_"</span> <!-- -->: <span class="lg-highlight-number">236</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"cuisine_1"</span> <!-- -->: <span class="lg-highlight-number">144</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"borough_1_cuisine_1"</span> <!-- -->: <span class="lg-highlight-number">156</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"borough_1_address.zipcode_1"</span> <!-- -->: <span class="lg-highlight-number">152</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"scaleFactor"</span> <!-- -->: <span class="lg-highlight-number">1024</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"ok"</span> <!-- -->: <span class="lg-highlight-number">1</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Statistics Lookup With Index Details
<a class="headerlink leafygreen-ui-1kepx47" href="#statistics-lookup-with-index-details" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="statistics-lookup-with-index-details">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The following operation creates an
<code class="leafygreen-ui-1l06pbn">
indexDetails
</code>
document that contains
information related to each of the indexes within the collection:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.restaurants.stats( { indexDetails : true } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">restaurants</span>.<span class="lg-highlight-title lg-highlight-function">stats</span>( <!-- -->{ <!-- -->indexDetails <!-- -->: <span class="lg-highlight-literal">true</span> } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The operation returns:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n \"ns\" : \"test.restaurants\",\n \"size\" : 7557340,\n \"count\" : 25359,\n \"avgObjSize\" : 298,\n \"storageSize\" : 9670656,\n \"freeStorageSize\" : 6660096,\n \"capped\" : false,\n \"wiredTiger\" : {\n ...\n },\n \"nindexes\" : 4,\n \"indexDetails\" : {\n \"_id_\" : {\n \"metadata\" : {\n \"formatVersion\" : 8\n },\n \"creationString\" : \"access_pattern_hint=none,allocation_size=4KB,app_metadata=(formatVersion=8),assert=(commit_timestamp=none,durable_timestamp=none,read_timestamp=none),block_allocation=best,block_compressor=,cache_resident=false,checksum=on,colgroups=,collator=,columns=,dictionary=0,encryption=(keyid=,name=),exclusive=false,extractor=,format=btree,huffman_key=,huffman_value=,ignore_in_memory_cache_size=false,immutable=false,internal_item_max=0,internal_key_max=0,internal_key_truncate=true,internal_page_max=16k,key_format=u,key_gap=10,leaf_item_max=0,leaf_key_max=0,leaf_page_max=16k,leaf_value_max=0,log=(enabled=true),lsm=(auto_throttle=true,bloom=true,bloom_bit_count=16,bloom_config=,bloom_hash_count=8,bloom_oldest=false,chunk_count_limit=0,chunk_max=5GB,chunk_size=10MB,merge_custom=(prefix=,start_generation=0,suffix=),merge_max=15,merge_min=0),memory_page_image_max=0,memory_page_max=5MB,os_cache_dirty_max=0,os_cache_max=0,prefix_compression=true,prefix_compression_min=4,source=,split_deepen_min_child=0,split_deepen_per_child=0,split_pct=90,type=file,value_format=u\",\n \"type\" : \"file\",\n \"uri\" : \"statistics:table:index-44-6797839137631957852\",\n \"LSM\" : {\n ...\n },\n \"block-manager\" : {\n ...\n },\n \"btree\" : {\n ...\n },\n \"cache\" : {\n ...\n },\n \"cache_walk\" : {\n ...\n },\n \"compression\" : {\n ...\n },\n \"cursor\" : {\n ...\n },\n \"reconciliation\" : {\n ...\n },\n \"session\" : {\n ...\n },\n \"transaction\" : {\n ...\n }\n },\n \"cuisine_1\" : {\n ...\n },\n \"borough_1_cuisine_1\" : {\n ...\n },\n \"borough_1_address.zipcode_1\" : {\n ...\n },\n \"indexBuilds\" : [ ],\n \"totalIndexSize\" : 704512,\n \"totalSize\" : 10375168,\n \"indexSizes\" : {\n \"_id_\" : 241664,\n \"cuisine_1\" : 147456,\n \"borough_1_cuisine_1\" : 159744,\n \"borough_1_address.zipcode_1\" : 155648\n },\n \"scaleFactor\" : 1,\n \"ok\" : 1\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"ns"</span> <!-- -->: <span class="lg-highlight-string">"test.restaurants"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"size"</span> <!-- -->: <span class="lg-highlight-number">7557340</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"count"</span> <!-- -->: <span class="lg-highlight-number">25359</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"avgObjSize"</span> <!-- -->: <span class="lg-highlight-number">298</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"storageSize"</span> <!-- -->: <span class="lg-highlight-number">9670656</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"freeStorageSize"</span> <!-- -->: <span class="lg-highlight-number">6660096</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"capped"</span> <!-- -->: <span class="lg-highlight-literal">false</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"wiredTiger"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"nindexes"</span> <!-- -->: <span class="lg-highlight-number">4</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"indexDetails"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"_id_"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"metadata"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"formatVersion"</span> <!-- -->: <span class="lg-highlight-number">8</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"creationString"</span> <!-- -->: <span class="lg-highlight-string">"access_pattern_hint=none,allocation_size=4KB,app_metadata=(formatVersion=8),assert=(commit_timestamp=none,durable_timestamp=none,read_timestamp=none),block_allocation=best,block_compressor=,cache_resident=false,checksum=on,colgroups=,collator=,columns=,dictionary=0,encryption=(keyid=,name=),exclusive=false,extractor=,format=btree,huffman_key=,huffman_value=,ignore_in_memory_cache_size=false,immutable=false,internal_item_max=0,internal_key_max=0,internal_key_truncate=true,internal_page_max=16k,key_format=u,key_gap=10,leaf_item_max=0,leaf_key_max=0,leaf_page_max=16k,leaf_value_max=0,log=(enabled=true),lsm=(auto_throttle=true,bloom=true,bloom_bit_count=16,bloom_config=,bloom_hash_count=8,bloom_oldest=false,chunk_count_limit=0,chunk_max=5GB,chunk_size=10MB,merge_custom=(prefix=,start_generation=0,suffix=),merge_max=15,merge_min=0),memory_page_image_max=0,memory_page_max=5MB,os_cache_dirty_max=0,os_cache_max=0,prefix_compression=true,prefix_compression_min=4,source=,split_deepen_min_child=0,split_deepen_per_child=0,split_pct=90,type=file,value_format=u"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"type"</span> <!-- -->: <span class="lg-highlight-string">"file"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"uri"</span> <!-- -->: <span class="lg-highlight-string">"statistics:table:index-44-6797839137631957852"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"LSM"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"block-manager"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"btree"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"cache"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"cache_walk"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"compression"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"cursor"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"reconciliation"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"session"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"transaction"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"cuisine_1"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"borough_1_cuisine_1"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"borough_1_address.zipcode_1"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"indexBuilds"</span> <!-- -->: <!-- -->[ <!-- -->]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"totalIndexSize"</span> <!-- -->: <span class="lg-highlight-number">704512</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"totalSize"</span> <!-- -->: <span class="lg-highlight-number">10375168</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"indexSizes"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"_id_"</span> <!-- -->: <span class="lg-highlight-number">241664</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"cuisine_1"</span> <!-- -->: <span class="lg-highlight-number">147456</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"borough_1_cuisine_1"</span> <!-- -->: <span class="lg-highlight-number">159744</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"borough_1_address.zipcode_1"</span> <!-- -->: <span class="lg-highlight-number">155648</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"scaleFactor"</span> <!-- -->: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"ok"</span> <!-- -->: <span class="lg-highlight-number">1</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Statistics Lookup With Filtered Index Details
<a class="headerlink leafygreen-ui-1kepx47" href="#statistics-lookup-with-filtered-index-details" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="statistics-lookup-with-filtered-index-details">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
To filter the indexes in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/collStats/#mongodb-data-collStats.indexDetails">
<code class="leafygreen-ui-1l06pbn">
indexDetails
</code>
</a>
field, you can
either specify the index keys using the
<code class="leafygreen-ui-1l06pbn">
indexDetailsKey
</code>
option or specify
the index name using the
<code class="leafygreen-ui-1l06pbn">
indexDetailsName
</code>
. To discover index keys and
names for the collection, use
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.getIndexes/#mongodb-method-db.collection.getIndexes">
<code class="leafygreen-ui-1l06pbn">
db.collection.getIndexes()
</code>
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
Given the following index:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n \"ns\" : \"test.restaurants\",\n \"v\" : 1,\n \"key\" : {\n \"borough\" : 1,\n \"cuisine\" : 1\n },\n \"name\" : \"borough_1_cuisine_1\"\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"ns"</span> <!-- -->: <span class="lg-highlight-string">"test.restaurants"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"v"</span> <!-- -->: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"key"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"borough"</span> <!-- -->: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"cuisine"</span> <!-- -->: <span class="lg-highlight-number">1</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"name"</span> <!-- -->: <span class="lg-highlight-string">"borough_1_cuisine_1"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The following operation filters the
<code class="leafygreen-ui-1l06pbn">
indexDetails
</code>
document to a single
index as defined by the
<code class="leafygreen-ui-1l06pbn">
indexDetailsKey
</code>
document.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.restaurants.stats(\n {\n 'indexDetails' : true,\n 'indexDetailsKey' :\n {\n 'borough' : 1,\n 'cuisine' : 1\n }\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">restaurants</span>.<span class="lg-highlight-title lg-highlight-function">stats</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">'indexDetails'</span> <!-- -->: <span class="lg-highlight-literal">true</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">'indexDetailsKey'</span> <!-- -->:</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">'borough'</span> <!-- -->: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">'cuisine'</span> <!-- -->: <span class="lg-highlight-number">1</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The following operation filters the
<code class="leafygreen-ui-1l06pbn">
indexDetails
</code>
document to a single
index as defined by the
<code class="leafygreen-ui-1l06pbn">
indexDetailsName
</code>
document.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.restaurants.stats(\n {\n 'indexDetails' : true,\n 'indexDetailsName' : 'borough_1_cuisine_1'\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">restaurants</span>.<span class="lg-highlight-title lg-highlight-function">stats</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">'indexDetails'</span> <!-- -->: <span class="lg-highlight-literal">true</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">'indexDetailsName'</span> <!-- -->: <span class="lg-highlight-string">'borough_1_cuisine_1'</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Both operations will return the same output:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n \"ns\" : \"test.restaurants\",\n \"size\" : 7557340,\n \"count\" : 25359,\n \"avgObjSize\" : 298,\n \"storageSize\" : 9670656,\n \"freeStorageSize\" : 6660096,\n \"capped\" : false,\n \"wiredTiger\" : {\n ...\n },\n \"nindexes\" : 4,\n \"indexDetails\" : {\n \"borough_1_cuisine_1\" : {\n \"metadata\" : {\n \"formatVersion\" : 8\n },\n \"LSM\" : {\n ...\n },\n \"block-manager\" : {\n ...\n },\n \"btree\" : {\n ...\n },\n \"cache\" : {\n ...\n },\n \"cache_walk\" : {\n ...\n },\n \"compression\" : {\n ...\n },\n \"cursor\" : {\n ...\n },\n \"reconciliation\" : {\n ...\n },\n \"session\" : {\n ...\n },\n \"transaction\" : {\n ...\n }\n }\n },\n \"indexBuilds\" : [ ],\n \"totalIndexSize\" : 704512,\n \"totalSize\" : 10375168,\n \"indexSizes\" : {\n \"_id_\" : 241664,\n \"cuisine_1\" : 147456,\n \"borough_1_cuisine_1\" : 159744,\n \"borough_1_address.zipcode_1\" : 155648\n },\n \"scaleFactor\" : 1,\n \"ok\" : 1\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"ns"</span> <!-- -->: <span class="lg-highlight-string">"test.restaurants"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"size"</span> <!-- -->: <span class="lg-highlight-number">7557340</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"count"</span> <!-- -->: <span class="lg-highlight-number">25359</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"avgObjSize"</span> <!-- -->: <span class="lg-highlight-number">298</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"storageSize"</span> <!-- -->: <span class="lg-highlight-number">9670656</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"freeStorageSize"</span> <!-- -->: <span class="lg-highlight-number">6660096</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"capped"</span> <!-- -->: <span class="lg-highlight-literal">false</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"wiredTiger"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"nindexes"</span> <!-- -->: <span class="lg-highlight-number">4</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"indexDetails"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"borough_1_cuisine_1"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"metadata"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"formatVersion"</span> <!-- -->: <span class="lg-highlight-number">8</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"LSM"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"block-manager"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"btree"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"cache"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"cache_walk"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"compression"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"cursor"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"reconciliation"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"session"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"transaction"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"indexBuilds"</span> <!-- -->: <!-- -->[ <!-- -->]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"totalIndexSize"</span> <!-- -->: <span class="lg-highlight-number">704512</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"totalSize"</span> <!-- -->: <span class="lg-highlight-number">10375168</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"indexSizes"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"_id_"</span> <!-- -->: <span class="lg-highlight-number">241664</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"cuisine_1"</span> <!-- -->: <span class="lg-highlight-number">147456</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"borough_1_cuisine_1"</span> <!-- -->: <span class="lg-highlight-number">159744</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"borough_1_address.zipcode_1"</span> <!-- -->: <span class="lg-highlight-number">155648</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"scaleFactor"</span> <!-- -->: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"ok"</span> <!-- -->: <span class="lg-highlight-number">1</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
For explanation of the output, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/collStats/#std-label-collStats-output">
output details
<!-- -->
.
</a>
</p>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/collStats/#mongodb-pipeline-pipe.-collStats">
<code class="leafygreen-ui-1l06pbn">
$collStats
</code>
</a>
</p>
</div>
</div>
</section>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/operator/update-array/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Array Update Operators
<a class="headerlink leafygreen-ui-1kepx47" href="#array-update-operators" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="array-update-operators">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#update-operators" target="_self">
<span>
Update Operators
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#update-operator-modifiers" target="_self">
<span>
Update Operator Modifiers
</span>
</a>
</li>
</ul>
</div>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
For details on a specific operator, including syntax and examples,
click on the link to the operator's reference page.
</p>
</div>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Update Operators
<a class="headerlink leafygreen-ui-1kepx47" href="#update-operators" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="update-operators">
</div>
</a>
</h2>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:30%"/>
<col style="width:70%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Name
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/update/positional/#mongodb-update-up.-">
<code class="leafygreen-ui-1l06pbn">
$
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Acts as a placeholder to update the first element that matches the query condition.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/update/positional-all/#mongodb-update-up.---">
<code class="leafygreen-ui-1l06pbn">
$[]
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Acts as a placeholder to update all elements in an array for the documents that match the query condition.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/update/positional-filtered/#mongodb-update-up.---identifier--">
<code class="leafygreen-ui-1l06pbn">
$[<identifier>]
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Acts as a placeholder to update all elements that match the
<code class="leafygreen-ui-1l06pbn">
arrayFilters
</code>
condition for the documents that match the query condition.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/update/addToSet/#mongodb-update-up.-addToSet">
<code class="leafygreen-ui-1l06pbn">
$addToSet
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Adds elements to an array only if they do not already exist in the set.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/update/pop/#mongodb-update-up.-pop">
<code class="leafygreen-ui-1l06pbn">
$pop
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Removes the first or last item of an array.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/update/pull/#mongodb-update-up.-pull">
<code class="leafygreen-ui-1l06pbn">
$pull
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Removes all array elements that match a specified query.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/update/push/#mongodb-update-up.-push">
<code class="leafygreen-ui-1l06pbn">
$push
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Adds an item to an array.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/update/pullAll/#mongodb-update-up.-pullAll">
<code class="leafygreen-ui-1l06pbn">
$pullAll
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Removes all matching values from an array.
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Update Operator Modifiers
<a class="headerlink leafygreen-ui-1kepx47" href="#update-operator-modifiers" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="update-operator-modifiers">
</div>
</a>
</h2>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:30%"/>
<col style="width:70%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Name
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/update/each/#mongodb-update-up.-each">
<code class="leafygreen-ui-1l06pbn">
$each
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Modifies the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/update/push/#mongodb-update-up.-push">
<code class="leafygreen-ui-1l06pbn">
$push
</code>
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/update/addToSet/#mongodb-update-up.-addToSet">
<code class="leafygreen-ui-1l06pbn">
$addToSet
</code>
</a>
operators to append multiple items for array updates.
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/update/position/#mongodb-update-up.-position">
<code class="leafygreen-ui-1l06pbn">
$position
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Modifies the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/update/push/#mongodb-update-up.-push">
<code class="leafygreen-ui-1l06pbn">
$push
</code>
</a>
operator to specify the position in the array to add elements.
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/update/slice/#mongodb-update-up.-slice">
<code class="leafygreen-ui-1l06pbn">
$slice
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Modifies the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/update/push/#mongodb-update-up.-push">
<code class="leafygreen-ui-1l06pbn">
$push
</code>
</a>
operator to limit the size of updated arrays.
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/update/sort/#mongodb-update-up.-sort">
<code class="leafygreen-ui-1l06pbn">
$sort
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Modifies the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/update/push/#mongodb-update-up.-push">
<code class="leafygreen-ui-1l06pbn">
$push
</code>
</a>
operator to reorder documents stored in an array.
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/method/db.collection.createIndex/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
db.collection.createIndex()
<a class="headerlink leafygreen-ui-1kepx47" href="#db.collection.createindex--" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="db.collection.createindex--">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#definition" target="_self">
<span>
Definition
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#compatibility" target="_self">
<span>
Compatibility
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#syntax" target="_self">
<span>
Syntax
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#options" target="_self">
<span>
Options
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#options-for-all-index-types" target="_self">
<span>
Options for All Index Types
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#option-for-collation" target="_self">
<span>
Option for Collation
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#options-for-text-indexes" target="_self">
<span>
Options for
<code class="css-1kekw28 e1wawog0">
text
</code>
Indexes
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#options-for-2dsphere-indexes" target="_self">
<span>
Options for
<code class="css-1kekw28 e1wawog0">
2dsphere
</code>
Indexes
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#options-for-2d-indexes" target="_self">
<span>
Options for
<code class="css-1kekw28 e1wawog0">
2d
</code>
Indexes
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#options-for-wildcard-indexes" target="_self">
<span>
Options for
<code class="css-1kekw28 e1wawog0">
wildcard
</code>
indexes
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#behaviors" target="_self">
<span>
Behaviors
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#recreating-an-existing-index" target="_self">
<span>
Recreating an Existing Index
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#index-options" target="_self">
<span>
Index Options
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#transactions" target="_self">
<span>
Transactions
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#index-builds" target="_self">
<span>
Index Builds
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#examples" target="_self">
<span>
Examples
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#create-an-ascending-index-on-a-single-field" target="_self">
<span>
Create an Ascending Index on a Single Field
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#create-an-index-on-a-multiple-fields" target="_self">
<span>
Create an Index on a Multiple Fields
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#create-indexes-with-collation-specified" target="_self">
<span>
Create Indexes with Collation Specified
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#create-a-wildcard-index" target="_self">
<span>
Create a Wildcard Index
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#create-index-with-commit-quorum" target="_self">
<span>
Create Index With Commit Quorum
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#additional-information" target="_self">
<span>
Additional Information
</span>
</a>
</li>
</ul>
</div>
<div class="leafygreen-ui-147elvs">
<p class="leafygreen-ui-1ronz74">
MongoDB with drivers
</p>
<div class="leafygreen-ui-18k5rfm">
<p class="leafygreen-ui-1kp3ins">
This page documents a
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
method. To see the equivalent
method in a MongoDB driver, see the corresponding page for your
programming language:
</p>
</div>
<div class="leafygreen-ui-zgrwqu notranslate">
<a class="leafygreen-ui-v22cck" href="https://www.mongodb.com/docs/drivers/csharp/current/fundamentals/indexes/" target="_self">
<svg class="leafygreen-ui-x3zji3" fill="none" height="24" viewbox="0 0 28 29" width="24" xmlns="http://www.w3.org/2000/svg">
<g clip-path="url(#clip0_1351_59964)">
<g clip-path="url(#clip1_1351_59964)">
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</path>
<path d="M13.9227 14.7673L2.27905 21.5449C2.47435 21.8927 2.76265 22.1841 3.15326 22.4191C5.03187 23.5189 11.3373 27.1662 12.6021 27.9182C13.4484 28.4258 14.2762 28.4445 15.1317 27.9463C18.2938 26.1039 21.4651 24.2615 24.6271 22.4191C25.0177 22.1935 25.306 21.9021 25.5013 21.5449L13.9227 14.7673Z" fill="#280068">
</path>
<path d="M25.7711 9.24949C25.7711 8.79827 25.6781 8.39408 25.4828 8.04626L13.9229 14.7768L25.4921 21.5543C25.6781 21.2159 25.7711 20.8211 25.7711 20.3793C25.7711 20.3699 25.7711 12.9531 25.7711 9.24949Z" fill="#390091">
</path>
<path d="M20.7771 12.2387V13.5078H22.0325V12.2387H22.6557V13.5078H23.9111V14.1376H22.6557V15.4066H23.9111V16.0364H22.6557V17.3054H22.0325V16.0364H20.7771V17.3054H20.1539V16.0364H18.8984V15.4066H20.1539V14.1376H18.8984V13.5078H20.1539V12.2387H20.7771ZM22.0325 14.1376H20.7771V15.4066H22.0325V14.1376Z" fill="white">
</path>
<path d="M13.9508 5.87482C17.2151 5.87482 20.0702 7.67022 21.6047 10.3399L21.5861 10.3117L17.7452 12.5489C16.9919 11.2517 15.5969 10.3775 14.0066 10.3587H13.9601C11.5328 10.3587 9.56116 12.3515 9.56116 14.805C9.56116 15.604 9.77503 16.3654 10.1377 17.014C10.9004 18.3488 12.3232 19.2512 13.9601 19.2512C15.6062 19.2512 17.0384 18.3394 17.7917 16.9858L17.7731 17.014L21.614 19.2606C20.0981 21.9021 17.2895 23.6975 14.0531 23.7257H13.9508C10.6679 23.7257 7.81274 21.9209 6.28753 19.2418C5.54353 17.9352 5.11572 16.4124 5.11572 14.7956C5.11572 9.87931 9.06825 5.87482 13.9508 5.87482Z" fill="white">
</path>
</g>
</g>
<defs>
<clippath id="clip0_1351_59964">
<rect fill="white" height="28" transform="translate(0 0.809265)" width="28">
</rect>
</clippath>
<clippath id="clip1_1351_59964">
<rect fill="white" height="27" transform="translate(2 1.30966)" width="24">
</rect>
</clippath>
</defs>
</svg>
<span>
C#
</span>
</a>
<a class="leafygreen-ui-v22cck" href="https://www.mongodb.com/docs/drivers/java/sync/current/fundamentals/indexes/" target="_self">
<svg class="leafygreen-ui-x3zji3" fill="none" height="24" viewbox="0 0 30 41" width="24" xmlns="http://www.w3.org/2000/svg">
<path d="M10.0921 30.7949C10.0921 30.7949 8.57608 31.6793 11.166 31.9636C14.2929 32.311 15.9037 32.2794 19.3464 31.6161C19.3464 31.6161 20.2623 32.1846 21.5257 32.6901C13.7876 35.9748 4.02791 32.5005 10.0921 30.7949Z" fill="#0074BD">
</path>
<path d="M9.14539 26.4678C9.14539 26.4678 7.43985 27.7312 10.0298 27.9838C13.3778 28.3312 15.9992 28.3628 20.579 27.4785C20.579 27.4785 21.2107 28.1101 22.1898 28.4576C12.8724 31.2054 2.44949 28.6787 9.14539 26.4678Z" fill="#0074BD">
</path>
<path d="M17.1039 19.1398C18.9989 21.3191 16.5985 23.3089 16.5985 23.3089C16.5985 23.3089 21.431 20.8138 19.2201 17.6869C17.1355 14.7811 15.5563 13.3282 24.1788 8.33789C24.1473 8.33789 10.6607 11.6858 17.1039 19.1398Z" fill="#EA2D2E">
</path>
<path d="M27.3377 33.9845C27.3377 33.9845 28.4431 34.9004 26.1059 35.6269C21.6525 36.985 7.53417 37.3957 3.61769 35.6901C2.19639 35.0899 4.84949 34.2372 5.67069 34.0477C6.52347 33.8582 7.02884 33.8898 7.02884 33.8898C5.44961 32.7843 -3.10981 36.0691 2.67016 36.9851C18.4308 39.5433 31.4121 35.8164 27.3377 33.9845Z" fill="#0074BD">
</path>
<path d="M10.8194 21.983C10.8194 21.983 3.6497 23.6885 8.2926 24.3203C10.2509 24.5729 14.1357 24.5097 17.7995 24.2255C20.7685 23.9728 23.7375 23.4359 23.7375 23.4359C23.7375 23.4359 22.6951 23.8781 21.9372 24.415C14.6411 26.3416 0.585992 25.4257 4.62881 23.4675C8.00839 21.7935 10.8194 21.983 10.8194 21.983Z" fill="#0074BD">
</path>
<path d="M23.6745 29.1846C31.0969 25.3313 27.6542 21.6359 25.2538 22.1413C24.6537 22.2676 24.401 22.3623 24.401 22.3623C24.401 22.3623 24.6221 22.0149 25.0327 21.8886C29.7703 20.2146 33.4025 26.7842 23.5166 29.4057C23.5482 29.3741 23.6429 29.2794 23.6745 29.1846Z" fill="#0074BD">
</path>
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<path d="M21.7524 14.3657H20.8771V13.4796H19.994V14.3657H19.1187V15.2518H19.994V16.1458H20.8771V15.2518H21.7524V14.3657Z" fill="white">
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<path d="M25.0446 14.3657H24.1693V13.4796H23.2862V14.3657H22.4109V15.2518H23.2862V16.1458H24.1693V15.2518H25.0446V14.3657Z" fill="white">
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<span>
C++
</span>
</a>
<a class="leafygreen-ui-18cpm0b" href="https://www.mongodb.com/docs/drivers/go/current/fundamentals/indexes/" target="_self">
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</svg>
<span>
Go
</span>
</a>
<a class="leafygreen-ui-18cpm0b" href="https://www.mongodb.com/docs/languages/java/reactive-streams-driver/current/tutorials/indexes/" target="_self">
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<path d="M10.8194 21.983C10.8194 21.983 3.6497 23.6885 8.2926 24.3203C10.2509 24.5729 14.1357 24.5097 17.7995 24.2255C20.7685 23.9728 23.7375 23.4359 23.7375 23.4359C23.7375 23.4359 22.6951 23.8781 21.9372 24.415C14.6411 26.3416 0.585992 25.4257 4.62881 23.4675C8.00839 21.7935 10.8194 21.983 10.8194 21.983Z" fill="#0074BD">
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<path d="M19.2206 0.25293C19.2206 0.25293 23.3266 4.35891 15.3357 10.6758C8.92404 15.7293 13.8828 18.6351 15.3357 21.9199C11.6087 18.5403 8.86088 15.5714 10.6928 12.792C13.3775 8.74919 20.863 6.79093 19.2206 0.25293Z" fill="#EA2D2E">
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</svg>
<span>
Java RS
</span>
</a>
<a class="leafygreen-ui-18cpm0b" href="https://www.mongodb.com/docs/drivers/kotlin/coroutine/current/fundamentals/indexes/" target="_self">
<svg class="leafygreen-ui-x3zji3" fill="none" height="24" viewbox="0 0 28 29" width="24" xmlns="http://www.w3.org/2000/svg">
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<span>
Kotlin Coroutine
</span>
</a>
<a class="leafygreen-ui-18cpm0b" href="https://www.mongodb.com/docs/languages/kotlin/kotlin-sync-driver/current/work-with-indexes/" target="_self">
<svg class="leafygreen-ui-x3zji3" fill="none" height="24" viewbox="0 0 28 29" width="24" xmlns="http://www.w3.org/2000/svg">
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<span>
Kotlin Sync
</span>
</a>
<a class="leafygreen-ui-18cpm0b" href="https://www.mongodb.com/docs/php-library/current/reference/method/MongoDBCollection-createIndex/" target="_self">
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<span>
PHP
</span>
</a>
<a class="leafygreen-ui-18cpm0b" href="https://motor.readthedocs.io/en/stable/api-tornado/motor_collection.html#motor.motor_tornado.MotorCollection.create_index" target="_self">
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<path d="M13 39v5c0 .843 17.73 2.255 29.28 5 5.582-1.327 9.72-2.966 9.72-5v-5c0-2.034-4.138-3.673-9.72-5C30.73 36.745 13 38.157 13 39M13 20v5c0 .843 17.73 2.255 29.28 5 5.582-1.327 9.72-2.966 9.72-5v-5c0-2.034-4.138-3.673-9.72-5C30.73 17.745 13 19.157 13 20" fill="#731818">
</path>
<g fill="url(#:Rbrr9qcmqn9:aaa)" transform="translate(13)">
<path d="M0 29.53v14.766c0-1.232 39-3.692 39-9.844V19.686c0 6.152-39 8.612-39 9.844M0 9.843V24.61c0-1.231 39-3.691 39-9.843V0C39 6.152 0 8.612 0 9.843M0 49.216v14.766c0-1.231 39-3.691 39-9.843V39.373c0 6.151-39 8.612-39 9.843">
</path>
</g>
</g>
</svg>
<span>
Scala
</span>
</a>
<a class="leafygreen-ui-18cpm0b" href="https://mongodb.github.io/mongo-swift-driver/docs/current/MongoSwift/Structs/MongoCollection.html#/s:10MongoSwift0A10CollectionV11createIndex_7options7sessionSSAA0E5ModelV_AA06CreateE7OptionsVSgAA13ClientSessionCSgtYaKF" target="_self">
<svg class="leafygreen-ui-x3zji3" height="24" viewbox="-252 343.9 106.1 106.1" width="24" xmlns="http://www.w3.org/2000/svg">
<path d="M-145.9 373.3v-3.2c-.1-2.3-.2-4.7-.6-7-.4-2.3-1.1-4.5-2.2-6.6-1.1-2.1-2.4-4-4.1-5.6-1.7-1.7-3.6-3-5.6-4.1-2.1-1.1-4.3-1.8-6.6-2.2-2.3-.4-4.6-.6-7-.6h-53.7c-.6 0-1.2 0-1.7.1-1.7.1-3.5.2-5.2.5-1.7.3-3.4.8-5 1.4-.5.2-1.1.5-1.6.7-1.6.8-3 1.8-4.4 2.9-.4.4-.9.8-1.3 1.2-1.7 1.7-3 3.6-4.1 5.6-1.1 2.1-1.8 4.3-2.2 6.6-.4 2.3-.5 4.6-.6 7v53.7c.1 2.3.2 4.7.6 7 .4 2.3 1.1 4.5 2.2 6.6 1.1 2.1 2.4 4 4.1 5.6 1.7 1.7 3.6 3 5.6 4.1 2.1 1.1 4.3 1.8 6.6 2.2 2.3.4 4.6.6 7 .6h53.7c2.3-.1 4.7-.2 7-.6 2.3-.4 4.5-1.1 6.6-2.2 2.1-1.1 4-2.4 5.6-4.1 1.7-1.7 3-3.6 4.1-5.6 1.1-2.1 1.8-4.3 2.2-6.6.4-2.3.6-4.6.6-7v-3.2V377v-3.7z" fill="#F05138">
</path>
<path d="M-168 409.4l.3-1.2c4.4-17.5-6.3-38.3-24.5-49.2 8 10.8 11.5 23.9 8.4 35.3-.3 1-.6 2-1 3-.4-.3-.9-.6-1.6-.9 0 0-18.1-11.2-37.7-30.9-.5-.5 10.5 15.7 22.9 28.8-5.9-3.3-22.2-15.2-32.6-24.6 1.3 2.1 2.8 4.2 4.4 6.1 8.6 11 19.9 24.5 33.4 34.9-9.5 5.8-22.9 6.3-36.2 0-3.3-1.5-6.4-3.4-9.3-5.5 5.6 9 14.3 16.8 24.9 21.4 12.6 5.4 25.2 5.1 34.5.1 0 0 .1 0 .1-.1.4-.2.8-.5 1.2-.7 4.5-2.3 13.3-4.6 18.1 4.6 1.4 2.1 3.9-9.9-5.3-21.1z" fill="#FFF">
</path>
</svg>
<span>
Swift
</span>
</a>
</div>
<button class="leafygreen-ui-ki2t97">
Show all
<svg aria-label="Chevron Down Icon" class="" fill="none" height="16" role="img" viewbox="0 0 16 16" width="16" xmlns="http://www.w3.org/2000/svg">
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</path>
</svg>
</button>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Definition
<a class="headerlink leafygreen-ui-1kepx47" href="#definition" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="definition">
</div>
</a>
</h2>
<dl class="method">
<dt>
<code class="leafygreen-ui-1l06pbn">
db.collection.createIndex(keys, options, commitQuorum)
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-method-db.collection.createIndex" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-method-db.collection.createIndex">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Creates indexes on collections.
</p>
<p class="leafygreen-ui-1kp3ins">
To minimize the impact of building an index on replica sets and
sharded clusters, use a rolling index build procedure as described
on
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/build-indexes-on-replica-sets/">
Rolling Index Builds on Replica Sets
<!-- -->
.
</a>
</p>
</dd>
</dl>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Compatibility
<a class="headerlink leafygreen-ui-1kepx47" href="#compatibility" title="Permalink to this heading">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="compatibility">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
You can use
<code class="leafygreen-ui-1l06pbn">
db.collection.createIndex()
</code>
for deployments hosted in the following
environments:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas?tck=docs_server" target="_self">
<span>
MongoDB Atlas
</span>
</a>
: The fully
managed service for MongoDB deployments in the cloud
</p>
</li>
</ul>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/install-enterprise/#std-label-install-mdb-enterprise">
MongoDB Enterprise
</a>
: The
subscription-based, self-managed version of MongoDB
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/install-community/#std-label-install-mdb-community-edition">
MongoDB Community
</a>
: The
source-available, free-to-use, and self-managed version of MongoDB
</p>
</li>
</ul>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Syntax
<a class="headerlink leafygreen-ui-1kepx47" href="#syntax" title="Permalink to this heading">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="syntax">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-db.collection.createIndex" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
createIndex()
</code>
</span>
</a>
method has the following
form:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.collection.createIndex( <keys>, <options>, <commitquorum>)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">collection</span>.<span class="lg-highlight-title lg-highlight-function">createIndex</span>( <<!-- -->keys<!-- -->><!-- -->,<!-- --> <!-- --><<!-- -->options<!-- -->><!-- -->,<!-- --> <!-- --><<!-- -->commitQuorum<!-- -->><!-- -->)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
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</div>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-db.collection.createIndex" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
createIndex()
</code>
</span>
</a>
method takes the following
parameters:
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:20%"/>
<col style="width:20%"/>
<col style="width:80%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Parameter
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Type
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
keys
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
document
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
A document that contains the field and value pairs where the
field is the index key and the value describes the type of
index for that field.
</p>
<p class="leafygreen-ui-1kp3ins">
For an ascending index on a field, specify a value of
<code class="leafygreen-ui-1l06pbn">
1
</code>
.
For descending index, specify a value of
<code class="leafygreen-ui-1l06pbn">
-1
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
An asterisk (
<code class="leafygreen-ui-1l06pbn">
*
</code>
) is not a valid index name.
</p>
<p class="leafygreen-ui-1kp3ins">
MongoDB supports several different index types, including:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/index-text/#std-label-index-feature-text">
text
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/geospatial-queries/#std-label-index-feature-geospatial">
geospatial
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/index-hashed/#std-label-index-type-hashed">
hashed indexes
</a>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/#std-label-index-types">
index types
</a>
for more information.
</p>
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/index-wildcard/#std-label-wildcard-index-core">
Wildcard indexes
</a>
support workloads where users query against custom fields or a
large variety of fields in a collection.
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
You can create a wildcard index on a specific field and its
subpaths or on all of the fields in a document.
</p>
<p class="leafygreen-ui-1kp3ins">
For details, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/index-wildcard/#std-label-wildcard-index-core">
Wildcard Indexes
<!-- -->
.
</a>
</p>
</li>
</ul>
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
options
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
document
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Optional. A document that contains a set of options that controls the creation
of the index. See
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-ensureIndex-options" target="_self">
<span>
Options
</span>
</a>
for details.
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-createIndex-method-commitQuorum" target="_self">
<span>
commitQuorum
</span>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
integer or string
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-createIndex-method-commitQuorum">
</span>
<p class="leafygreen-ui-1kp3ins">
Optional. The minimum number of data-bearing voting replica
set members (i.e. commit quorum), including the primary, that
must report a successful
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/index-creation/#std-label-index-operations-replicated-build">
index build
</a>
before the primary
marks the
<code class="leafygreen-ui-1l06pbn">
indexes
</code>
as ready. A "voting" member is any
replica set member where
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-configuration/#mongodb-rsconf-rsconf.members-n-.votes">
<code class="leafygreen-ui-1l06pbn">
members[n].votes
</code>
</a>
is greater
than
<code class="leafygreen-ui-1l06pbn">
0
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
Supports the following values:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
"votingMembers"
</code>
- all data-bearing voting replica set
members (
<em>
Default
</em>
).
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
"majority"
</code>
- a simple majority of data-bearing voting
replica set members.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
<int>
</code>
- a specific number of data-bearing voting
replica set members.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
0
</code>
- Disables quorum-voting behavior. Members
start the index build simultaneously but do
<em>
not
</em>
vote or wait for quorum before completing the
index build. If you start an index build with
a commit quorum of
<code class="leafygreen-ui-1l06pbn">
0
</code>
, you cannot later modify the
commit quorum using
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/setIndexCommitQuorum/#mongodb-dbcommand-dbcmd.setIndexCommitQuorum">
<code class="leafygreen-ui-1l06pbn">
setIndexCommitQuorum
</code>
.
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
A replica set
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/configure-replica-set-tag-sets/">
tag name
<!-- -->
.
</a>
</p>
</li>
</ul>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-ensureIndex-options">
</span>
<span class="leafygreen-ui-1qnjd6d" id="std-label-createIndex-options">
</span>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Options
<a class="headerlink leafygreen-ui-1kepx47" href="#options" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="options">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
options
</code>
document contains a set of options that controls the
creation of the index. Different index types can have additional
options specific for that type.
</p>
<p class="leafygreen-ui-1kp3ins">
Multiple index options can be specified in the same document. However,
if you specify multiple option documents the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-db.collection.createIndex" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
db.collection.createIndex()
</code>
</span>
</a>
operation will fail.
</p>
<p class="leafygreen-ui-1kp3ins">
Consider the following
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-db.collection.createIndex" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
db.collection.createIndex()
</code>
</span>
</a>
operation:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.collection.createIndex(\n {\n \"a\": 1\n },\n {\n unique: true,\n sparse: true,\n expireAfterSeconds: 3600\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">collection</span>.<span class="lg-highlight-title lg-highlight-function">createIndex</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"a"</span>: <span class="lg-highlight-number">1</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">unique</span>: <span class="lg-highlight-literal">true</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">sparse</span>: <span class="lg-highlight-literal">true</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">expireAfterSeconds</span>: <span class="lg-highlight-number">3600</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
If the options specification had been split into multiple documents
like this:
<code class="leafygreen-ui-1l06pbn">
{ unique: true }, { sparse: true, expireAfterSeconds: 3600 }
</code>
the index creation operation would have failed.
</p>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Options for All Index Types
<a class="headerlink leafygreen-ui-1kepx47" href="#options-for-all-index-types" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="options-for-all-index-types">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The following options are available for all index types unless
otherwise specified:
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:20%"/>
<col style="width:20%"/>
<col style="width:80%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Parameter
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Type
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
unique
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
boolean
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Optional. Creates a unique index so that the collection will not accept
insertion or update of documents where the index key value
matches an existing value in the index.
</p>
<p class="leafygreen-ui-1kp3ins">
Specify
<code class="leafygreen-ui-1l06pbn">
true
</code>
to create a unique index. The
default value is
<code class="leafygreen-ui-1l06pbn">
false
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
The option is
<em>
unavailable
</em>
for
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/index-hashed/#std-label-index-hashed-index">
hashed indexes
<!-- -->
.
</a>
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
name
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
string
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Optional. The name of the index. If unspecified, MongoDB generates an index name
by concatenating the names of the indexed fields and the sort order.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
partialFilterExpression
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
document
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Optional. If specified, the index only references documents that match the
filter expression. See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/index-partial/">
Partial Indexes
</a>
for more information.
</p>
<p class="leafygreen-ui-1kp3ins">
A filter expression can include:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
equality expressions (i.e.
<code class="leafygreen-ui-1l06pbn">
field: value
</code>
or using the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/eq/#mongodb-query-op.-eq">
<code class="leafygreen-ui-1l06pbn">
$eq
</code>
</a>
operator),
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/exists/#mongodb-query-op.-exists">
<code class="leafygreen-ui-1l06pbn">
$exists: true
</code>
</a>
expression,
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/gt/#mongodb-query-op.-gt">
<code class="leafygreen-ui-1l06pbn">
$gt
</code>
</a>
,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/gte/#mongodb-query-op.-gte">
<code class="leafygreen-ui-1l06pbn">
$gte
</code>
</a>
,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/lt/#mongodb-query-op.-lt">
<code class="leafygreen-ui-1l06pbn">
$lt
</code>
</a>
,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/lte/#mongodb-query-op.-lte">
<code class="leafygreen-ui-1l06pbn">
$lte
</code>
</a>
expressions,
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/type/#mongodb-query-op.-type">
<code class="leafygreen-ui-1l06pbn">
$type
</code>
</a>
expressions,
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/and/#mongodb-query-op.-and">
<code class="leafygreen-ui-1l06pbn">
$and
</code>
</a>
operator,
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/or/#mongodb-query-op.-or">
<code class="leafygreen-ui-1l06pbn">
$or
</code>
</a>
operator,
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/in/#mongodb-query-op.-in">
<code class="leafygreen-ui-1l06pbn">
$in
</code>
</a>
operator
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
You can specify a
<code class="leafygreen-ui-1l06pbn">
partialFilterExpression
</code>
option for all MongoDB
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/#std-label-index-types">
index types
<!-- -->
.
</a>
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
sparse
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
boolean
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Optional. If
<code class="leafygreen-ui-1l06pbn">
true
</code>
, the index only references documents with the specified
field. These indexes use less space but behave differently in some
situations (particularly sorts). The default value is
<code class="leafygreen-ui-1l06pbn">
false
</code>
.
See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/index-sparse/">
Sparse Indexes
</a>
for more information.
</p>
<p class="leafygreen-ui-1kp3ins">
The following index types are sparse by default and ignore
this option:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/geospatial/2dsphere/#std-label-2dsphere-index">
2dsphere
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/geospatial/2d/#std-label-2d-index">
2d
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/index-text/#std-label-index-type-text">
Text
</a>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
For a compound index that includes
<code class="leafygreen-ui-1l06pbn">
2dsphere
</code>
index keys and
keys for other types, only the
<code class="leafygreen-ui-1l06pbn">
2dsphere
</code>
index fields determine
whether the index references a document.
</p>
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/index-partial/#std-label-index-type-partial">
Partial indexes
</a>
have a superset of the
sparse index functionality. Unless your application has a specific
requirement, use partial indexes instead of sparse indexes.
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
expireAfterSeconds
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
integer
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Optional. Specifies a value, in seconds, as a time to live (
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-TTL">
TTL
</a>
)
to control how long MongoDB retains documents in this collection. This
option only applies to
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-TTL">
TTL
</a>
indexes. See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/expire-data/#std-label-ttl-collections">
Expire Data from Collections by Setting TTL
</a>
for more information.
</p>
<p class="leafygreen-ui-1kp3ins">
If you use TTL indexes created before MongoDB 5.0, or if you want to
sync data created in MongDB 5.0 with a pre-5.0 installation, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/expire-data/#std-label-expireData-warning">
Indexes Configured Using NaN
</a>
to avoid misconfiguration issues.
</p>
<p class="leafygreen-ui-1kp3ins">
The TTL index
<code class="leafygreen-ui-1l06pbn">
expireAfterSeconds
</code>
value must be within
<code class="leafygreen-ui-1l06pbn">
0
</code>
and
<code class="leafygreen-ui-1l06pbn">
2147483647
</code>
inclusive.
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-method-createIndex-hidden" target="_self">
<span>
hidden
</span>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
boolean
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-method-createIndex-hidden">
</span>
<p class="leafygreen-ui-1kp3ins">
Optional. A flag that determines whether the index is
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/index-hidden/#std-label-index-type-hidden">
hidden
</a>
from the query planner. A
hidden index is not evaluated as part of the query plan
selection.
</p>
<p class="leafygreen-ui-1kp3ins">
Default is
<code class="leafygreen-ui-1l06pbn">
false
</code>
.
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
storageEngine
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
document
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Optional. Allows users to configure the storage engine on a
per-index basis when creating an index.
</p>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
storageEngine
</code>
option should take the following form:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"storageEngine: { <storage-engine-name>: <options> }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">storageEngine</span>: <!-- -->{ <<!-- -->storage<!-- -->-<!-- -->engine<!-- -->-<!-- -->name<!-- -->><!-- -->: <<!-- -->options<!-- -->> <!-- -->}</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Storage engine configuration options specified when creating indexes are
validated and logged to the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-oplog">
oplog
</a>
during replication to
support replica sets with members that use different storage
engines.
</p>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-create-index-collation">
</span>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Option for Collation
<a class="headerlink leafygreen-ui-1kepx47" href="#option-for-collation" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="option-for-collation">
</div>
</a>
</h3>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:20%"/>
<col style="width:20%"/>
<col style="width:80%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Parameter
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Type
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
collation
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
document
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Optional. Specifies the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/collation/#std-label-collation">
collation
</a>
for the index.
</p>
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/collation/#std-label-collation">
Collation
</a>
allows users to specify
language-specific rules for string comparison, such as rules for
lettercase and accent marks.
</p>
<p class="leafygreen-ui-1kp3ins">
If you have specified a collation at the collection level, then:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
If you do not specify a collation when creating the index, MongoDB
creates the index with the collection's default collation.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
If you do specify a collation when creating the index, MongoDB
creates the index with the specified collation.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
The collation option has the following syntax:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"collation: {\n locale: <string>,\n caseLevel: <boolean>,\n caseFirst: <string>,\n strength: <int>,\n numericOrdering: <boolean>,\n alternate: <string>,\n maxVariable: <string>,\n backwards: <boolean>\n}"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light none leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">collation: {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> locale: <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> caseLevel: <boolean>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> caseFirst: <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> strength: <int>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> numericOrdering: <boolean>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> alternate: <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> maxVariable: <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> backwards: <boolean></td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
When specifying collation, the
<code class="leafygreen-ui-1l06pbn">
locale
</code>
field is mandatory; all
other collation fields are optional. For descriptions of the fields,
see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/collation/#std-label-collation-document-fields">
Collation Document
<!-- -->
.
</a>
</p>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<p class="leafygreen-ui-1kp3ins">
The following indexes only support simple binary comparison and do
not support
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/collation/#std-label-collation">
collation
<!-- -->
:
</a>
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/index-text/#std-label-index-type-text">
Text
</a>
indexes
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/geospatial/2d/#std-label-2d-index">
2d
</a>
indexes
</p>
</li>
</ul>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
To create a
<code class="leafygreen-ui-1l06pbn">
text
</code>
or
<code class="leafygreen-ui-1l06pbn">
2d
</code>
index on a collection that has a
non-simple collation, you must explicitly specify
<code class="leafygreen-ui-1l06pbn">
{collation:
{locale: "simple"} }
</code>
when creating the index.
</p>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-createIndex-collation-index-use">
</span>
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Collation and Index Use
<a class="headerlink leafygreen-ui-1kepx47" href="#collation-and-index-use" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="collation-and-index-use">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
If you have specified a collation at the collection level, then:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
If you do not specify a collation when creating the index, MongoDB
creates the index with the collection's default collation.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
If you do specify a collation when creating the index, MongoDB
creates the index with the specified collation.
</p>
</li>
</ul>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
By specifying a collation
<code class="leafygreen-ui-1l06pbn">
strength
</code>
of
<code class="leafygreen-ui-1l06pbn">
1
</code>
or
<code class="leafygreen-ui-1l06pbn">
2
</code>
, you can
create a case-insensitive index. Index with a collation
<code class="leafygreen-ui-1l06pbn">
strength
</code>
of
<code class="leafygreen-ui-1l06pbn">
1
</code>
is both diacritic- and case-insensitive.
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
You can create multiple indexes on the same key(s) with different
collations. To create indexes with the same key pattern but different
collations, you must supply unique index names.
</p>
<p class="leafygreen-ui-1kp3ins">
To use an index for string comparisons, an operation must also
specify the same collation. That is, an index with a collation
cannot support an operation that performs string comparisons on the
indexed fields if the operation specifies a different collation.
</p>
<div class="leafygreen-ui-1sjx7ru" role="note">
<h2 class="leafygreen-ui-29m78u">
Warning
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Because indexes that are configured with collation use ICU
collation keys to achieve sort order, collation-aware index keys
may be larger than index keys for indexes without collation.
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
For example, the collection
<code class="leafygreen-ui-1l06pbn">
myColl
</code>
has an index on a string
field
<code class="leafygreen-ui-1l06pbn">
category
</code>
with the collation locale
<code class="leafygreen-ui-1l06pbn">
"fr"
</code>
.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.myColl.createIndex( { category: 1 }, { collation: { locale: \"fr\" } } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">myColl</span>.<span class="lg-highlight-title lg-highlight-function">createIndex</span>( <!-- -->{ <span class="lg-highlight-attr">category</span>: <span class="lg-highlight-number">1</span> }<!-- -->, <!-- -->{ <span class="lg-highlight-attr">collation</span>: <!-- -->{ <span class="lg-highlight-attr">locale</span>: <span class="lg-highlight-string">"fr"</span> } } )</td></tr></tbody></table></code></pre>
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<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The following query operation, which specifies the same collation as
the index, can use the index:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.myColl.find( { category: \"cafe\" } ).collation( { locale: \"fr\" } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">myColl</span>.<span class="lg-highlight-title lg-highlight-function">find</span>( <!-- -->{ <span class="lg-highlight-attr">category</span>: <span class="lg-highlight-string">"cafe"</span> } ).<span class="lg-highlight-title lg-highlight-function">collation</span>( <!-- -->{ <span class="lg-highlight-attr">locale</span>: <span class="lg-highlight-string">"fr"</span> } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
However, the following query operation, which by default uses the
"simple" binary collator, cannot use the index:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.myColl.find( { category: \"cafe\" } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">myColl</span>.<span class="lg-highlight-title lg-highlight-function">find</span>( <!-- -->{ <span class="lg-highlight-attr">category</span>: <span class="lg-highlight-string">"cafe"</span> } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
For a compound index where the index prefix keys are not strings,
arrays, and embedded documents, an operation that specifies a
different collation can still use the index to support comparisons
on the index prefix keys.
</p>
<p class="leafygreen-ui-1kp3ins">
For example, the collection
<code class="leafygreen-ui-1l06pbn">
myColl
</code>
has a compound index on the
numeric fields
<code class="leafygreen-ui-1l06pbn">
score
</code>
and
<code class="leafygreen-ui-1l06pbn">
price
</code>
and the string field
<code class="leafygreen-ui-1l06pbn">
category
</code>
; the index is created with the collation locale
<code class="leafygreen-ui-1l06pbn">
"fr"
</code>
for string comparisons:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.myColl.createIndex(\n { score: 1, price: 1, category: 1 },\n { collation: { locale: \"fr\" } } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">myColl</span>.<span class="lg-highlight-title lg-highlight-function">createIndex</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">score</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-attr">category</span>: <span class="lg-highlight-number">1</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">collation</span>: <!-- -->{ <span class="lg-highlight-attr">locale</span>: <span class="lg-highlight-string">"fr"</span> } } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The following operations, which use
<code class="leafygreen-ui-1l06pbn">
"simple"
</code>
binary collation
for string comparisons, can use the index:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.myColl.find( { score: 5 } ).sort( { price: 1 } )\ndb.myColl.find( { score: 5, price: { $gt: NumberDecimal( \"10\" ) } } ).sort( { price: 1 } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">myColl</span>.<span class="lg-highlight-title lg-highlight-function">find</span>( <!-- -->{ <span class="lg-highlight-attr">score</span>: <span class="lg-highlight-number">5</span> } ).<span class="lg-highlight-title lg-highlight-function">sort</span>( <!-- -->{ <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">1</span> } )</td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">myColl</span>.<span class="lg-highlight-title lg-highlight-function">find</span>( <!-- -->{ <span class="lg-highlight-attr">score</span>: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-attr">price</span>: <!-- -->{ <span class="lg-highlight-attr">$gt</span>: <span class="lg-highlight-title lg-highlight-class">NumberDecimal</span>( <span class="lg-highlight-string">"10"</span> ) } } ).<span class="lg-highlight-title lg-highlight-function">sort</span>( <!-- -->{ <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">1</span> } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The following operation, which uses
<code class="leafygreen-ui-1l06pbn">
"simple"
</code>
binary collation
for string comparisons on the indexed
<code class="leafygreen-ui-1l06pbn">
category
</code>
field, can use
the index to fulfill only the
<code class="leafygreen-ui-1l06pbn">
score: 5
</code>
portion of the query:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.myColl.find( { score: 5, category: \"cafe\" } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">myColl</span>.<span class="lg-highlight-title lg-highlight-function">find</span>( <!-- -->{ <span class="lg-highlight-attr">score</span>: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-attr">category</span>: <span class="lg-highlight-string">"cafe"</span> } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Matches against document keys, including embedded document keys,
use simple binary comparison. This means that a query for a key
like "foo.bár" will not match the key "foo.bar", regardless of the value you
set for the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/collation/#std-label-collation-parameter-strength">
strength
</a>
parameter.
</p>
</div>
</div>
</section>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Options for
<code class="leafygreen-ui-1l06pbn">
text
</code>
Indexes
<a class="headerlink leafygreen-ui-1kepx47" href="#options-for-text-indexes" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="options-for-text-indexes">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The following options are available for
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/index-text/#std-label-index-type-text">
text
</a>
indexes only:
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:20%"/>
<col style="width:20%"/>
<col style="width:80%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Parameter
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Type
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
weights
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
document
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Optional. For
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/index-text/#std-label-index-type-text">
text
</a>
indexes, a document that contains
field and weight pairs. The weight is an integer ranging from 1 to
99,999 and denotes the significance of the field relative to the
other indexed fields in terms of the score. You can specify weights
for some or all the indexed fields. See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/index-text/control-text-search-results/#std-label-control-text-search-results">
Assign Weights to Text Search Results on Self-Managed Deployments
</a>
to adjust the scores.
The default value is
<code class="leafygreen-ui-1l06pbn">
1
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 5.0, the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/index-text/control-text-search-results/#std-label-specify-weights">
weights
</a>
option is only allowed for text indexes.
</p>
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
default_language
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
string
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Optional. For
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/index-text/#std-label-index-type-text">
text
</a>
indexes, the language that
determines the list of stop words and the rules for the stemmer and
tokenizer. See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/text-search-languages/#std-label-text-search-languages">
Text Search Languages on Self-Managed Deployments
</a>
for the available
languages and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/index-text/specify-text-index-language/">
Specify the Default Language for a Text Index on Self-Managed Deployments
</a>
for more information and examples. The default value is
<code class="leafygreen-ui-1l06pbn">
english
</code>
.
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
language_override
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
string
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Optional. For
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/index-text/#std-label-index-type-text">
text
</a>
indexes, the name of the field, in
the collection's documents, that contains the override language for
the document. The default value is
<code class="leafygreen-ui-1l06pbn">
language
</code>
. See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/index-text/specify-text-index-language/#std-label-specify-language-field-text-index-example">
Specify the Default Language for a Text Index on Self-Managed Deployments
</a>
for an example.
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
textIndexVersion
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
integer
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Optional. The
<code class="leafygreen-ui-1l06pbn">
text
</code>
index version number. Users can use this option to
override the default version number.
</p>
<p class="leafygreen-ui-1kp3ins">
For available versions, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/index-text/text-index-versions/#std-label-text-index-versions">
Text Index Versions on Self-Managed Deployments
<!-- -->
.
</a>
</p>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Options for
<code class="leafygreen-ui-1l06pbn">
2dsphere
</code>
Indexes
<a class="headerlink leafygreen-ui-1kepx47" href="#options-for-2dsphere-indexes" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="options-for-2dsphere-indexes">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The following option is available for
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/geospatial/2dsphere/#std-label-2dsphere-index">
2dsphere
</a>
indexes only:
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:20%"/>
<col style="width:20%"/>
<col style="width:80%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Parameter
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Type
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
2dsphereIndexVersion
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
integer
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Optional. The
<code class="leafygreen-ui-1l06pbn">
2dsphere
</code>
index version number. Users can use this option to
override the default version number.
</p>
<p class="leafygreen-ui-1kp3ins">
For the available versions, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/geospatial/2dsphere/#std-label-2dsphere-v2">
2dsphere Indexes
<!-- -->
.
</a>
</p>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-2d-index-options">
</span>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Options for
<code class="leafygreen-ui-1l06pbn">
2d
</code>
Indexes
<a class="headerlink leafygreen-ui-1kepx47" href="#options-for-2d-indexes" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="options-for-2d-indexes">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The following options are available for
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/geospatial/2d/#std-label-2d-index">
2d
</a>
indexes
only:
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:20%"/>
<col style="width:20%"/>
<col style="width:80%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Parameter
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Type
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
bits
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
integer
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Optional. For
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/geospatial/2d/#std-label-2d-index">
2d
</a>
indexes, the number of precision of the
stored
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-geohash">
geohash
</a>
value of the location data.
</p>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
bits
</code>
value ranges from 1 to 32 inclusive. The default value
is
<code class="leafygreen-ui-1l06pbn">
26
</code>
.
</p>
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
min
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
number
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Optional. For
<code class="leafygreen-ui-1l06pbn">
2d
</code>
indexes, the lower inclusive boundary for
the longitude and latitude values. The default value is
<code class="leafygreen-ui-1l06pbn">
-180.0
</code>
.
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
max
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
number
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Optional. For
<code class="leafygreen-ui-1l06pbn">
2d
</code>
indexes, the upper inclusive boundary for
the longitude and latitude values. The default value is
<code class="leafygreen-ui-1l06pbn">
180.0
</code>
.
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-createIndex-method-wildcard-option">
</span>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Options for
<code class="leafygreen-ui-1l06pbn">
wildcard
</code>
indexes
<a class="headerlink leafygreen-ui-1kepx47" href="#options-for-wildcard-indexes" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="options-for-wildcard-indexes">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/index-wildcard/#std-label-wildcard-index-core">
Wildcard indexes
</a>
can use the
<code class="leafygreen-ui-1l06pbn">
wildcardProjection
</code>
option.
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:20%"/>
<col style="width:20%"/>
<col style="width:80%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Parameter
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Type
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
wildcardProjection
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
document
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Optional. Allows users to include or exclude specific field paths
from a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/index-wildcard/#std-label-wildcard-index-core">
wildcard index
<!-- -->
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
This option is only valid when you create a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/index-wildcard/#std-label-wildcard-index-core">
wildcard index
</a>
on all document fields. You cannot specify
the
<code class="leafygreen-ui-1l06pbn">
wildcardProjection
</code>
option when you create a wildcard
index on a specific field path and its subfields.
</p>
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
wildcardProjection
</code>
works with specifications like:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ \"$**\": 1 }\n{ \"userID\":, \"$**\": 1 }","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"$**"</span>: <span class="lg-highlight-number">1</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"userID"</span>:<!-- -->,<!-- --> <span class="lg-highlight-string">"$**"</span>: <span class="lg-highlight-number">1</span> }</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
However, you can't define an index that includes the same field in the
wildcard fields and the regular (non-wildcard) fields. To define the
index correctly, use a
<code class="leafygreen-ui-1l06pbn">
wildcardProjection
</code>
to exclude duplicated
fields from the wildcard pattern.
</p>
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
wildcardProjection
</code>
does not work with a specification like:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":" ``{ \"path.to.field.$**\" : 1 }``","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1agdxuk" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">``</span>{ <span class="lg-highlight-string">"path.to.field.$**"</span> <!-- -->: <span class="lg-highlight-number">1</span> }<span class="lg-highlight-string">``</span></td></tr></tbody></table></code></pre>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
wildcardProjection
</code>
option takes the following form:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"wildcardProjection: {\n \"path.to.field.a\" : <value>,\n \"path.to.field.b\" : <value>\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">wildcardProjection</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"path.to.field.a"</span> <!-- -->: <<!-- -->value<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"path.to.field.b"</span> <!-- -->: <<!-- -->value<!-- -->></td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
<value>
</code>
can be either of the following:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
1
</code>
or
<code class="leafygreen-ui-1l06pbn">
true
</code>
to include the field in the wildcard index.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
0
</code>
or
<code class="leafygreen-ui-1l06pbn">
false
</code>
to exclude the field from the wildcard index.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
Wildcard indexes omit the
<code class="leafygreen-ui-1l06pbn">
_id
</code>
field by default. To include the
<code class="leafygreen-ui-1l06pbn">
_id
</code>
field in the wildcard index, you must explicitly include it
in the
<code class="leafygreen-ui-1l06pbn">
wildcardProjection
</code>
document:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n \"wildcardProjection\" : {\n \"_id\" : 1,\n \"<field>\" : 0|1\n }\n}","programmingLanguage":"JSON"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light json leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-punctuation">{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"wildcardProjection"</span> <span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-punctuation">{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"_id"</span> <span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-number">1</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"<field>"</span> <span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-number">0</span>|<span class="lg-highlight-number">1</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-punctuation">}</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-punctuation">}</span></td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
All of the statements in the
<code class="leafygreen-ui-1l06pbn">
wildcardProjection
</code>
document must be
either inclusion or exclusion statements. You can also include the
<code class="leafygreen-ui-1l06pbn">
_id
</code>
field with exclusion statements. This is the only exception to
the rule.
</p>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-create-index-behaviors">
</span>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Behaviors
<a class="headerlink leafygreen-ui-1kepx47" href="#behaviors" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="behaviors">
</div>
</a>
</h2>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Recreating an Existing Index
<a class="headerlink leafygreen-ui-1kepx47" href="#recreating-an-existing-index" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="recreating-an-existing-index">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
If you call
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-db.collection.createIndex" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
db.collection.createIndex()
</code>
</span>
</a>
for an index that
already exists, MongoDB does not recreate the index.
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Index Options
<a class="headerlink leafygreen-ui-1kepx47" href="#index-options" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="index-options">
</div>
</a>
</h3>
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Non-Collation and Non-Hidden Options
<a class="headerlink leafygreen-ui-1kepx47" href="#non-collation-and-non-hidden-options" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="non-collation-and-non-hidden-options">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
With the exception of the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-method-createIndex-collation-option" target="_self">
<span>
collation option
</span>
</a>
, if you create an index with one
set of index options and then try to recreate the same index but with
different index options, MongoDB will not change the options nor
recreate the index.
</p>
<p class="leafygreen-ui-1kp3ins">
The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/createIndexes/#std-label-createIndexes-hidden-option">
hidden
</a>
option can be changed
without dropping and recreating the index. See
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-method-createIndex-hidden-option" target="_self">
<span>
Hidden Option
<!-- -->
.
</span>
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
To change the other index options, drop the existing index with
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.dropIndex/#mongodb-method-db.collection.dropIndex">
<code class="leafygreen-ui-1l06pbn">
db.collection.dropIndex()
</code>
</a>
before running
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-db.collection.createIndex" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
db.collection.createIndex()
</code>
</span>
</a>
with the new options.
</p>
<span class="leafygreen-ui-1qnjd6d" id="std-label-method-createIndex-collation-option">
</span>
</section>
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Collation Option
<a class="headerlink leafygreen-ui-1kepx47" href="#collation-option" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="collation-option">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
You can create multiple indexes on the same key(s) with different
collations. To create indexes with the same key pattern but different
collations, you must supply unique index names.
</p>
<span class="leafygreen-ui-1qnjd6d" id="std-label-method-createIndex-hidden-option">
</span>
</section>
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Hidden Option
<a class="headerlink leafygreen-ui-1kepx47" href="#hidden-option" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="hidden-option">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
To hide or unhide existing indexes, you can use the following
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
methods:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.hideIndex/#mongodb-method-db.collection.hideIndex">
<code class="leafygreen-ui-1l06pbn">
db.collection.hideIndex()
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.unhideIndex/#mongodb-method-db.collection.unhideIndex">
<code class="leafygreen-ui-1l06pbn">
db.collection.unhideIndex()
</code>
</a>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
For example,
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
To change the
<code class="leafygreen-ui-1l06pbn">
hidden
</code>
option for an index to
<code class="leafygreen-ui-1l06pbn">
true
</code>
, use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.hideIndex/#mongodb-method-db.collection.hideIndex">
<code class="leafygreen-ui-1l06pbn">
db.collection.hideIndex()
</code>
</a>
method:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.restaurants.hideIndex( { borough: 1, ratings: 1 } );","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">restaurants</span>.<span class="lg-highlight-title lg-highlight-function">hideIndex</span>( <!-- -->{ <span class="lg-highlight-attr">borough</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-attr">ratings</span>: <span class="lg-highlight-number">1</span> } )<!-- -->;</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
To change the
<code class="leafygreen-ui-1l06pbn">
hidden
</code>
option for an index to
<code class="leafygreen-ui-1l06pbn">
false
</code>
, use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.unhideIndex/#mongodb-method-db.collection.unhideIndex">
<code class="leafygreen-ui-1l06pbn">
db.collection.unhideIndex()
</code>
</a>
method:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.restaurants.unhideIndex( { borough: 1, city: 1 } );","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">restaurants</span>.<span class="lg-highlight-title lg-highlight-function">unhideIndex</span>( <!-- -->{ <span class="lg-highlight-attr">borough</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-attr">city</span>: <span class="lg-highlight-number">1</span> } )<!-- -->;</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
</ul>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/index-hidden/">
Hidden Indexes
</a>
</p>
</div>
</div>
</section>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Transactions
<a class="headerlink leafygreen-ui-1kepx47" href="#transactions" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="transactions">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
You can create collections and indexes inside a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/transactions/#std-label-transactions-create-collections-indexes">
distributed
transaction
</a>
if the
transaction is
<strong class="css-4dei7l">
not
</strong>
a cross-shard write transaction.
</p>
<p class="leafygreen-ui-1kp3ins">
To use
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-db.collection.createIndex" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
db.collection.createIndex()
</code>
</span>
</a>
in a transaction, the transaction must use read
concern
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/read-concern-local/#mongodb-readconcern-readconcern.-local-">
<code class="leafygreen-ui-1l06pbn">
"local"
</code>
</a>
. If you specify a read concern level
other than
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/read-concern-local/#mongodb-readconcern-readconcern.-local-">
<code class="leafygreen-ui-1l06pbn">
"local"
</code>
</a>
, the transaction fails.
</p>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/transactions/#std-label-transactions-create-collections-indexes">
Create Collections and Indexes in a Transaction
</a>
</p>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-create-index-builds">
</span>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Index Builds
<a class="headerlink leafygreen-ui-1kepx47" href="#index-builds" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="index-builds">
</div>
</a>
</h3>
<div>
<p>
<em>
Changed
<!-- -->
in version
<!-- -->
7.1
</em>
.
</p>
</div>
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 7.1, index builds are improved with faster error
reporting and increased failure resilience. You can also set the minimum
available disk space required for index builds using the new
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/parameters/#mongodb-parameter-param.indexBuildMinAvailableDiskSpaceMB">
<code class="leafygreen-ui-1l06pbn">
indexBuildMinAvailableDiskSpaceMB
</code>
</a>
parameter, which stops
index builds if disk space is too low.
</p>
<p class="leafygreen-ui-1kp3ins">
The following table compares the index build behavior starting in
MongoDB 7.1 with earlier versions.
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:50%"/>
<col style="width:50%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Behavior Starting in MongoDB 7.1
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Behavior in Earlier MongoDB Versions
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Index errors found during the collection scan phase, except
duplicate key errors, are returned immediately and then the index
build stops. Earlier MongoDB versions return errors in the commit
phase, which occurs near the end of the index build. MongoDB 7.1
helps you to rapidly diagnose index errors. For example, if an
incompatible index value format is found, the error is returned to
you immediately.
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Index build errors can take a long time to be returned compared to
MongoDB 7.1 because the errors are returned near the end of the
index build in the commit phase.
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Increased resilience for your deployment. If an index build error
occurs, a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-secondary">
secondary
</a>
member can request that the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-primary">
primary
</a>
member stop an index build and the secondary
member does not crash. A request to stop an index build is not
always possible: if a member has already voted to commit the
index, then the secondary cannot request that the index build stop
and the secondary crashes (similar to MongoDB 7.0 and earlier).
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
An index build error can cause a secondary member to crash.
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Improved disk space management for index builds. An index build
may be automatically stopped if the available disk space is below
the minimum specified in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/parameters/#mongodb-parameter-param.indexBuildMinAvailableDiskSpaceMB">
<code class="leafygreen-ui-1l06pbn">
indexBuildMinAvailableDiskSpaceMB
</code>
</a>
parameter. If a
member has already voted to commit the index, then the index build
is not stopped.
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
An index build is not stopped if there is insufficient available
disk space.
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Examples
<a class="headerlink leafygreen-ui-1kepx47" href="#examples" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="examples">
</div>
</a>
</h2>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Create an Ascending Index on a Single Field
<a class="headerlink leafygreen-ui-1kepx47" href="#create-an-ascending-index-on-a-single-field" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="create-an-ascending-index-on-a-single-field">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The following example creates an ascending index on the field
<code class="leafygreen-ui-1l06pbn">
orderDate
</code>
.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.collection.createIndex( { orderDate: 1 } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">collection</span>.<span class="lg-highlight-title lg-highlight-function">createIndex</span>( <!-- -->{ <span class="lg-highlight-attr">orderDate</span>: <span class="lg-highlight-number">1</span> } )</td></tr></tbody></table></code></pre>
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</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
If the
<code class="leafygreen-ui-1l06pbn">
keys
</code>
document specifies more than one field, then
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-db.collection.createIndex" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
createIndex()
</code>
</span>
</a>
creates a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-compound-index">
compound index
<!-- -->
.
</a>
</p>
<span class="leafygreen-ui-1qnjd6d" id="std-label-create-index-method-multiple-fields">
</span>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Create an Index on a Multiple Fields
<a class="headerlink leafygreen-ui-1kepx47" href="#create-an-index-on-a-multiple-fields" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="create-an-index-on-a-multiple-fields">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The following example creates a compound index on the
<code class="leafygreen-ui-1l06pbn">
orderDate
</code>
field (in ascending order) and the
<code class="leafygreen-ui-1l06pbn">
zipcode
</code>
field (in descending order.)
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.collection.createIndex( { orderDate: 1, zipcode: -1 } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">collection</span>.<span class="lg-highlight-title lg-highlight-function">createIndex</span>( <!-- -->{ <span class="lg-highlight-attr">orderDate</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-attr">zipcode</span>: <!-- -->-<span class="lg-highlight-number">1</span> } )</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Compound indexes can include a single
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/index-hashed/#std-label-index-type-hashed">
hashed
</a>
field.
Compound hashed indexes require
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/setFeatureCompatibilityVersion/#std-label-view-fcv">
featureCompatibilityVersion
</a>
set to at least
<code class="leafygreen-ui-1l06pbn">
5.0
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
The following example creates a compound index on the
<code class="leafygreen-ui-1l06pbn">
state
</code>
field
(in ascending order) and the
<code class="leafygreen-ui-1l06pbn">
zipcode
</code>
field (hashed):
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.collection.createIndex( { \"state\" : 1, \"zipcode\" : \"hashed\" } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">collection</span>.<span class="lg-highlight-title lg-highlight-function">createIndex</span>( <!-- -->{ <span class="lg-highlight-string">"state"</span> <!-- -->: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-string">"zipcode"</span> <!-- -->: <span class="lg-highlight-string">"hashed"</span> } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The order of fields in a compound index is important for supporting
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/cursor.sort/#mongodb-method-cursor.sort">
<code class="leafygreen-ui-1l06pbn">
sort()
</code>
</a>
operations using the index.
</p>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/sort-results-with-indexes/#std-label-sort-on-multiple-fields">
Sort on Multiple Fields
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/sort-results-with-indexes/#std-label-sort-index-prefix">
Sort and Index Prefix
</a>
</p>
</li>
</ul>
</div>
</div>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Create Indexes with Collation Specified
<a class="headerlink leafygreen-ui-1kepx47" href="#create-indexes-with-collation-specified" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="create-indexes-with-collation-specified">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The following example creates an index named
<code class="leafygreen-ui-1l06pbn">
category_fr
</code>
. The
example creates the index with the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-create-index-collation" target="_self">
<span>
collation
</span>
</a>
that specifies the locale
<code class="leafygreen-ui-1l06pbn">
fr
</code>
and
comparison strength
<code class="leafygreen-ui-1l06pbn">
2
</code>
:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.collection.createIndex(\n { category: 1 },\n { name: \"category_fr\", collation: { locale: \"fr\", strength: 2 } }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">collection</span>.<span class="lg-highlight-title lg-highlight-function">createIndex</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">category</span>: <span class="lg-highlight-number">1</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">"category_fr"</span>, <span class="lg-highlight-attr">collation</span>: <!-- -->{ <span class="lg-highlight-attr">locale</span>: <span class="lg-highlight-string">"fr"</span>, <span class="lg-highlight-attr">strength</span>: <span class="lg-highlight-number">2</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The following example creates a compound index named
<code class="leafygreen-ui-1l06pbn">
date_category_fr
</code>
with a
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-create-index-collation" target="_self">
<span>
collation
</span>
</a>
.
The collation applies only to the index keys with string values.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.collection.createIndex(\n { orderDate: 1, category: 1 },\n { name: \"date_category_fr\", collation: { locale: \"fr\", strength: 2 } }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">collection</span>.<span class="lg-highlight-title lg-highlight-function">createIndex</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">orderDate</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-attr">category</span>: <span class="lg-highlight-number">1</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">"date_category_fr"</span>, <span class="lg-highlight-attr">collation</span>: <!-- -->{ <span class="lg-highlight-attr">locale</span>: <span class="lg-highlight-string">"fr"</span>, <span class="lg-highlight-attr">strength</span>: <span class="lg-highlight-number">2</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The collation applies to the indexed keys whose values are string.
</p>
<p class="leafygreen-ui-1kp3ins">
For queries or sort operations on the indexed keys that uses the same collation
rules, MongoDB can use the index. For details, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-createIndex-collation-index-use" target="_self">
<span>
Collation and Index Use
<!-- -->
.
</span>
</a>
</p>
<span class="leafygreen-ui-1qnjd6d" id="std-label-createIndex-method-wildcard-examples">
</span>
<span class="leafygreen-ui-1qnjd6d" id="std-label-createIndex-method-wildcard-behavior">
</span>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Create a Wildcard Index
<a class="headerlink leafygreen-ui-1kepx47" href="#create-a-wildcard-index" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="create-a-wildcard-index">
</div>
</a>
</h3>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Wildcard indexes omit the
<code class="leafygreen-ui-1l06pbn">
_id
</code>
field by default. To include the
<code class="leafygreen-ui-1l06pbn">
_id
</code>
field in the wildcard index, you must explicitly include it
in the
<code class="leafygreen-ui-1l06pbn">
wildcardProjection
</code>
document:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n \"wildcardProjection\" : {\n \"_id\" : 1,\n \"<field>\" : 0|1\n }\n}","programmingLanguage":"JSON"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light json leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-punctuation">{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"wildcardProjection"</span> <span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-punctuation">{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"_id"</span> <span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-number">1</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"<field>"</span> <span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-number">0</span>|<span class="lg-highlight-number">1</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-punctuation">}</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-punctuation">}</span></td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
All of the statements in the
<code class="leafygreen-ui-1l06pbn">
wildcardProjection
</code>
document must be
either inclusion or exclusion statements. You can also include the
<code class="leafygreen-ui-1l06pbn">
_id
</code>
field with exclusion statements. This is the only exception to
the rule.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Wildcard indexes do not support:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/geospatial/2d/internals/#std-label-2d-index-internals">
2d (Geospatial) indexes
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/geospatial/2dsphere/#std-label-2dsphere-index">
2dsphere (Geospatial) indexes
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/index-hashed/#std-label-index-type-hashed">
Hashed indexes
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/index-ttl/#std-label-index-feature-ttl">
Time to Live (TTL) indexes
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/index-text/#std-label-index-feature-text">
Text indexes
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/index-unique/#std-label-index-type-unique">
Unique indexes
</a>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
Wildcard indexes are
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/index-sparse/#std-label-index-type-sparse">
sparse
</a>
indexes. They do
not support queries when an indexed field does not exist. A wildcard
index will index the document if the wildcard field has a
<code class="leafygreen-ui-1l06pbn">
null
</code>
value.
</p>
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 7.0, wildcard indexes support ascending (
<code class="leafygreen-ui-1l06pbn">
1
</code>
) and
descending (
<code class="leafygreen-ui-1l06pbn">
-1
</code>
) sort order. Earlier versions only supported
ascending order.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
To learn more, see:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/index-wildcard/#std-label-wildcard-index-core">
About Wildcard Indexes
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/index-wildcard/reference/restrictions/#std-label-wildcard-index-restrictions">
Wildcard Index Restrictions
</a>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
For examples, see:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-createIndex-method-wildcard-onepath" target="_self">
<span>
Create a Wildcard Index on a Single Field Path
</span>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-createIndex-method-wildcard-allpaths" target="_self">
<span>
Create a Wildcard Index on All Field Paths
</span>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-createIndex-method-wildcard-inclusion" target="_self">
<span>
Include Specific Fields in Wildcard Index Coverage
</span>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-createIndex-method-wildcard-exclusion" target="_self">
<span>
Omit Specific Fields from Wildcard Index Coverage
</span>
</a>
</p>
</li>
</ul>
<span class="leafygreen-ui-1qnjd6d" id="std-label-createIndex-method-wildcard-onepath">
</span>
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Create a Wildcard Index on a Single Field Path
<a class="headerlink leafygreen-ui-1kepx47" href="#create-a-wildcard-index-on-a-single-field-path" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="create-a-wildcard-index-on-a-single-field-path">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
Consider a collection
<code class="leafygreen-ui-1l06pbn">
products_catalog
</code>
where documents may contain a
<code class="leafygreen-ui-1l06pbn">
product_attributes
</code>
field. The
<code class="leafygreen-ui-1l06pbn">
product_attributes
</code>
field can
contain arbitrary nested fields, including embedded
documents and arrays:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.products_catalog.insertMany( [\n {\n _id : ObjectId(\"5c1d358bf383fbee028aea0b\"),\n product_name: \"Blaster Gauntlet\",\n product_attributes: {\n price: {\n cost: 299.99,\n currency: \"USD\"\n }\n }\n },\n {\n _id: ObjectId(\"5c1d358bf383fbee028aea0c\"),\n product_name: \"Super Suit\",\n product_attributes: {\n superFlight: true,\n resistance: [ \"Bludgeoning\", \"Piercing\", \"Slashing\" ]\n }\n }\n] )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">products_catalog</span>.<span class="lg-highlight-title lg-highlight-function">insertMany</span>( <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->_id <!-- -->: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"5c1d358bf383fbee028aea0b"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">product_name</span>: <span class="lg-highlight-string">"Blaster Gauntlet"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">product_attributes</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">price</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">cost</span>: <span class="lg-highlight-number">299.99</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">currency</span>: <span class="lg-highlight-string">"USD"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"5c1d358bf383fbee028aea0c"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">product_name</span>: <span class="lg-highlight-string">"Super Suit"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">product_attributes</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">superFlight</span>: <span class="lg-highlight-literal">true</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">resistance</span>: <!-- -->[ <span class="lg-highlight-string">"Bludgeoning"</span>, <span class="lg-highlight-string">"Piercing"</span>, <span class="lg-highlight-string">"Slashing"</span> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">] )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The following operation creates a wildcard index on the
<code class="leafygreen-ui-1l06pbn">
product_attributes
</code>
field:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"use inventory\ndb.products_catalog.createIndex( { \"product_attributes.$**\" : 1 } )","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">use inventory</td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.products_catalog.createIndex( { <span class="lg-highlight-string">"product_attributes.$**"</span> : 1 } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
With this wildcard index, MongoDB indexes all scalar values of
<code class="leafygreen-ui-1l06pbn">
product_attributes
</code>
. If the field is a nested document or array, the
wildcard index recurses into the document/array and indexes all scalar
fields in the document/array.
</p>
<p class="leafygreen-ui-1kp3ins">
The wildcard index can support arbitrary single-field queries on
<code class="leafygreen-ui-1l06pbn">
product_attributes
</code>
or one of its nested fields:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.products_catalog.find( { \"product_attributes.superFlight\" : true } )\ndb.products_catalog.find( { \"product_attributes.maxSpeed\" : { $gt : 20 } } )\ndb.products_catalog.find( { \"product_attributes.elements\" : { $eq: \"water\" } } )","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.products_catalog.find( { <span class="lg-highlight-string">"product_attributes.superFlight"</span> : <span class="lg-highlight-literal">true</span> } )</td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.products_catalog.find( { <span class="lg-highlight-string">"product_attributes.maxSpeed"</span> : { <span class="lg-highlight-variable">$gt</span> : 20 } } )</td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.products_catalog.find( { <span class="lg-highlight-string">"product_attributes.elements"</span> : { <span class="lg-highlight-variable">$eq</span>: <span class="lg-highlight-string">"water"</span> } } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
The path-specific wildcard index syntax is incompatible with the
<code class="leafygreen-ui-1l06pbn">
wildcardProjection
</code>
option. See the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-createIndex-method-wildcard-option" target="_self">
<span>
parameter documentation
</span>
</a>
for more
information.
</p>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-createIndex-method-wildcard-allpaths">
</span>
</section>
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Create a Wildcard Index on All Field Paths
<a class="headerlink leafygreen-ui-1kepx47" href="#create-a-wildcard-index-on-all-field-paths" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="create-a-wildcard-index-on-all-field-paths">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
Consider a collection
<code class="leafygreen-ui-1l06pbn">
products_catalog
</code>
where documents may contain a
<code class="leafygreen-ui-1l06pbn">
product_attributes
</code>
field. The
<code class="leafygreen-ui-1l06pbn">
product_attributes
</code>
field can
contain arbitrary nested fields, including embedded
documents and arrays:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.products_catalog.insertMany( [\n {\n _id : ObjectId(\"5c1d358bf383fbee028aea0b\"),\n product_name: \"Blaster Gauntlet\",\n product_attributes: {\n price: {\n cost: 299.99,\n currency: \"USD\"\n }\n }\n },\n {\n _id: ObjectId(\"5c1d358bf383fbee028aea0c\"),\n product_name: \"Super Suit\",\n product_attributes: {\n superFlight: true,\n resistance: [ \"Bludgeoning\", \"Piercing\", \"Slashing\" ]\n }\n }\n] )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">products_catalog</span>.<span class="lg-highlight-title lg-highlight-function">insertMany</span>( <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->_id <!-- -->: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"5c1d358bf383fbee028aea0b"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">product_name</span>: <span class="lg-highlight-string">"Blaster Gauntlet"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">product_attributes</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">price</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">cost</span>: <span class="lg-highlight-number">299.99</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">currency</span>: <span class="lg-highlight-string">"USD"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"5c1d358bf383fbee028aea0c"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">product_name</span>: <span class="lg-highlight-string">"Super Suit"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">product_attributes</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">superFlight</span>: <span class="lg-highlight-literal">true</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">resistance</span>: <!-- -->[ <span class="lg-highlight-string">"Bludgeoning"</span>, <span class="lg-highlight-string">"Piercing"</span>, <span class="lg-highlight-string">"Slashing"</span> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">] )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The following operation creates a wildcard index on all scalar fields
(excluding the
<code class="leafygreen-ui-1l06pbn">
_id
</code>
field):
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"use inventory\ndb.products_catalog.createIndex( { \"$**\" : 1 } )","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">use inventory</td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.products_catalog.createIndex( { <span class="lg-highlight-string">"$**"</span> : 1 } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
With this wildcard index, MongoDB indexes all scalar fields for each
document in the collection. If a given field is a nested document or
array, the wildcard index recurses into the document/array and indexes
all scalar fields in the document/array.
</p>
<p class="leafygreen-ui-1kp3ins">
The created index can support queries on any arbitrary field
within documents in the collection:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.products_catalog.find( { \"product_price\" : { $lt : 25 } } )\ndb.products_catalog.find( { \"product_attributes.elements\" : { $eq: \"water\" } } )","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.products_catalog.find( { <span class="lg-highlight-string">"product_price"</span> : { <span class="lg-highlight-variable">$lt</span> : 25 } } )</td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.products_catalog.find( { <span class="lg-highlight-string">"product_attributes.elements"</span> : { <span class="lg-highlight-variable">$eq</span>: <span class="lg-highlight-string">"water"</span> } } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Wildcard indexes omit the
<code class="leafygreen-ui-1l06pbn">
_id
</code>
field by default. To include the
<code class="leafygreen-ui-1l06pbn">
_id
</code>
field in the wildcard index, you must explicitly include it
in the
<code class="leafygreen-ui-1l06pbn">
wildcardProjection
</code>
document. See
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-createIndex-method-wildcard-option" target="_self">
<span>
parameter documentation
</span>
</a>
for
more information.
</p>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-createIndex-method-wildcard-inclusion">
</span>
</section>
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Include Specific Fields in Wildcard Index Coverage
<a class="headerlink leafygreen-ui-1kepx47" href="#include-specific-fields-in-wildcard-index-coverage" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="include-specific-fields-in-wildcard-index-coverage">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
Consider a collection
<code class="leafygreen-ui-1l06pbn">
products_catalog
</code>
where documents may contain a
<code class="leafygreen-ui-1l06pbn">
product_attributes
</code>
field. The
<code class="leafygreen-ui-1l06pbn">
product_attributes
</code>
field can
contain arbitrary nested fields, including embedded
documents and arrays:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.products_catalog.insertMany( [\n {\n _id : ObjectId(\"5c1d358bf383fbee028aea0b\"),\n product_name: \"Blaster Gauntlet\",\n product_attributes: {\n price: {\n cost: 299.99,\n currency: \"USD\"\n }\n }\n },\n {\n _id: ObjectId(\"5c1d358bf383fbee028aea0c\"),\n product_name: \"Super Suit\",\n product_attributes: {\n superFlight: true,\n resistance: [ \"Bludgeoning\", \"Piercing\", \"Slashing\" ]\n }\n }\n] )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">products_catalog</span>.<span class="lg-highlight-title lg-highlight-function">insertMany</span>( <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->_id <!-- -->: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"5c1d358bf383fbee028aea0b"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">product_name</span>: <span class="lg-highlight-string">"Blaster Gauntlet"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">product_attributes</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">price</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">cost</span>: <span class="lg-highlight-number">299.99</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">currency</span>: <span class="lg-highlight-string">"USD"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"5c1d358bf383fbee028aea0c"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">product_name</span>: <span class="lg-highlight-string">"Super Suit"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">product_attributes</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">superFlight</span>: <span class="lg-highlight-literal">true</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">resistance</span>: <!-- -->[ <span class="lg-highlight-string">"Bludgeoning"</span>, <span class="lg-highlight-string">"Piercing"</span>, <span class="lg-highlight-string">"Slashing"</span> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">] )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The following operation creates a wildcard index and uses
the
<code class="leafygreen-ui-1l06pbn">
wildcardProjection
</code>
option to include only scalar values of the
<code class="leafygreen-ui-1l06pbn">
product_attributes.elements
</code>
and
<code class="leafygreen-ui-1l06pbn">
product_attributes.resistance
</code>
fields in the index.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"use inventory\ndb.products_catalog.createIndex(\n { \"$**\" : 1 },\n {\n \"wildcardProjection\" : {\n \"product_attributes.elements\" : 1,\n \"product_attributes.resistance\" : 1\n }\n }\n)","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">use inventory</td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.products_catalog.createIndex(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { <span class="lg-highlight-string">"$**"</span> : 1 },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"wildcardProjection"</span> : {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"product_attributes.elements"</span> : 1,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"product_attributes.resistance"</span> : 1</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The pattern
<code class="leafygreen-ui-1l06pbn">
"$**"
</code>
includes all fields in the document. Use the
<code class="leafygreen-ui-1l06pbn">
wildcardProjection
</code>
field to limit the index to fields you specify.
For complete documentation on
<code class="leafygreen-ui-1l06pbn">
wildcardProjection
</code>
, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-createIndex-method-wildcard-option" target="_self">
<span>
Options for
<code class="leafygreen-ui-1l06pbn">
wildcard
</code>
indexes
<!-- -->
.
</span>
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
If a field is a nested document or array, the wildcard index recurses
into it and indexes all scalar fields in the document or array.
</p>
<p class="leafygreen-ui-1kp3ins">
The wildcard index supports queries on any scalar field included in
the
<code class="leafygreen-ui-1l06pbn">
wildcardProjection
</code>
:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.products_catalog.find( { \"product_attributes.elements\" : { $eq: \"Water\" } } )\ndb.products_catalog.find( { \"product_attributes.resistance\" : \"Bludgeoning\" } )","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.products_catalog.find( { <span class="lg-highlight-string">"product_attributes.elements"</span> : { <span class="lg-highlight-variable">$eq</span>: <span class="lg-highlight-string">"Water"</span> } } )</td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.products_catalog.find( { <span class="lg-highlight-string">"product_attributes.resistance"</span> : <span class="lg-highlight-string">"Bludgeoning"</span> } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Wildcard indexes do not support mixing inclusion and exclusion
statements in the
<code class="leafygreen-ui-1l06pbn">
wildcardProjection
</code>
document
<em>
except
</em>
when
explicitly including the
<code class="leafygreen-ui-1l06pbn">
_id
</code>
field. For more information on
<code class="leafygreen-ui-1l06pbn">
wildcardProjection
</code>
, see the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-createIndex-method-wildcard-option" target="_self">
<span>
parameter documentation
</span>
</a>
.
</p>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-createIndex-method-wildcard-exclusion">
</span>
</section>
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Omit Specific Fields from Wildcard Index Coverage
<a class="headerlink leafygreen-ui-1kepx47" href="#omit-specific-fields-from-wildcard-index-coverage" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="omit-specific-fields-from-wildcard-index-coverage">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
Consider a collection
<code class="leafygreen-ui-1l06pbn">
products_catalog
</code>
where documents may contain a
<code class="leafygreen-ui-1l06pbn">
product_attributes
</code>
field. The
<code class="leafygreen-ui-1l06pbn">
product_attributes
</code>
field can
contain arbitrary nested fields, including embedded
documents and arrays:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.products_catalog.insertMany( [\n {\n _id : ObjectId(\"5c1d358bf383fbee028aea0b\"),\n product_name: \"Blaster Gauntlet\",\n product_attributes: {\n price: {\n cost: 299.99,\n currency: \"USD\"\n }\n }\n },\n {\n _id: ObjectId(\"5c1d358bf383fbee028aea0c\"),\n product_name: \"Super Suit\",\n product_attributes: {\n superFlight: true,\n resistance: [ \"Bludgeoning\", \"Piercing\", \"Slashing\" ]\n }\n }\n] )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">products_catalog</span>.<span class="lg-highlight-title lg-highlight-function">insertMany</span>( <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->_id <!-- -->: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"5c1d358bf383fbee028aea0b"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">product_name</span>: <span class="lg-highlight-string">"Blaster Gauntlet"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">product_attributes</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">price</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">cost</span>: <span class="lg-highlight-number">299.99</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">currency</span>: <span class="lg-highlight-string">"USD"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"5c1d358bf383fbee028aea0c"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">product_name</span>: <span class="lg-highlight-string">"Super Suit"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">product_attributes</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">superFlight</span>: <span class="lg-highlight-literal">true</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">resistance</span>: <!-- -->[ <span class="lg-highlight-string">"Bludgeoning"</span>, <span class="lg-highlight-string">"Piercing"</span>, <span class="lg-highlight-string">"Slashing"</span> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">] )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
This example uses a wildcard index and a
<code class="leafygreen-ui-1l06pbn">
wildcardProjection
</code>
document to index the scalar fields for each document in the collection.
</p>
<p class="leafygreen-ui-1kp3ins">
The wildcard index excludes the
<code class="leafygreen-ui-1l06pbn">
product_attributes.elements
</code>
and
<code class="leafygreen-ui-1l06pbn">
product_attributes.resistance
</code>
fields:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"use inventory\ndb.products_catalog.createIndex(\n { \"$**\" : 1 },\n {\n \"wildcardProjection\" : {\n \"product_attributes.elements\" : 0,\n \"product_attributes.resistance\" : 0\n }\n }\n)","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">use inventory</td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.products_catalog.createIndex(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { <span class="lg-highlight-string">"$**"</span> : 1 },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"wildcardProjection"</span> : {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"product_attributes.elements"</span> : 0,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"product_attributes.resistance"</span> : 0</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The wildcard pattern
<code class="leafygreen-ui-1l06pbn">
"$**"
</code>
includes all of the fields in the
document. However, the
<code class="leafygreen-ui-1l06pbn">
wildcardProjection
</code>
field excludes the
specified fields from the index.
</p>
<p class="leafygreen-ui-1kp3ins">
For complete documentation on
<code class="leafygreen-ui-1l06pbn">
wildcardProjection
</code>
, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-createIndex-method-wildcard-option" target="_self">
<span>
Options for
<code class="leafygreen-ui-1l06pbn">
wildcard
</code>
indexes
<!-- -->
.
</span>
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
If a field is a nested document or array, the wildcard
index recurses into the document/array and indexes all scalar fields in
the document/array.
</p>
<p class="leafygreen-ui-1kp3ins">
The index can support queries on any scalar field
<strong>
except
</strong>
those
excluded by
<code class="leafygreen-ui-1l06pbn">
wildcardProjection
</code>
:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.products_catalog.find( { \"product_attributes.maxSpeed\" : { $gt: 25 } } )\ndb.products_catalog.find( { \"product_attributes.superStrength\" : true } )","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.products_catalog.find( { <span class="lg-highlight-string">"product_attributes.maxSpeed"</span> : { <span class="lg-highlight-variable">$gt</span>: 25 } } )</td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.products_catalog.find( { <span class="lg-highlight-string">"product_attributes.superStrength"</span> : <span class="lg-highlight-literal">true</span> } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Wildcard indexes do not support mixing inclusion and exclusion
statements in the
<code class="leafygreen-ui-1l06pbn">
wildcardProjection
</code>
document
<em>
except
</em>
when
explicitly including the
<code class="leafygreen-ui-1l06pbn">
_id
</code>
field. For more information on
<code class="leafygreen-ui-1l06pbn">
wildcardProjection
</code>
, see the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-createIndex-method-wildcard-option" target="_self">
<span>
parameter documentation
</span>
</a>
.
</p>
</div>
</div>
</section>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Create Index With Commit Quorum
<a class="headerlink leafygreen-ui-1kepx47" href="#create-index-with-commit-quorum" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="create-index-with-commit-quorum">
</div>
</a>
</h3>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
Requires featureCompatibilityVersion 4.4+
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Each
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
in the replica set or sharded cluster
<em>
must
</em>
have
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/setFeatureCompatibilityVersion/#std-label-set-fcv">
featureCompatibilityVersion
</a>
set to at
least
<code class="leafygreen-ui-1l06pbn">
4.4
</code>
to start index builds simultaneously across
replica set members.
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Index builds on a replica set or sharded cluster build simultaneously across
all data-bearing replica set members. For sharded clusters, the index build
occurs only on shards containing data for the collection being indexed.
The primary requires a minimum number of data-bearing
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-configuration/#mongodb-rsconf-rsconf.members-n-.votes">
<code class="leafygreen-ui-1l06pbn">
voting
</code>
</a>
members (i.e commit quorum), including itself,
that must complete the build before marking the index as ready for
use. See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/index-creation/#std-label-index-operations-replicated-build">
Index Builds in Replicated Environments
</a>
for more
information.
</p>
<p class="leafygreen-ui-1kp3ins">
To set the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/createIndexes/#std-label-createIndexes-cmd-commitQuorum">
commit quorum
</a>
, use
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-db.collection.createIndex" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
createIndex()
</code>
</span>
</a>
to specify the
<code class="leafygreen-ui-1l06pbn">
commitQuorum
</code>
value.
</p>
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
commitQuorum
</code>
specifies how many data-bearing voting members, or
which voting members, including the primary, must be prepared to commit
the index build before the primary will execute the commit. The default
commit quorum is
<code class="leafygreen-ui-1l06pbn">
votingMembers
</code>
, which means all data-bearing
members.
</p>
<p class="leafygreen-ui-1kp3ins">
The following operation creates an index with a
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-createIndex-method-commitQuorum" target="_self">
<span>
commit quorum
</span>
</a>
of
<code class="leafygreen-ui-1l06pbn">
"majority"
</code>
, or a
simple majority of data-bearing voting members:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.getSiblingDB(\"examples\").invoices.createIndex(\n { \"invoices\" : 1 },\n { },\n \"majority\"\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">getSiblingDB</span>(<span class="lg-highlight-string">"examples"</span>).<span class="lg-highlight-property">invoices</span>.<span class="lg-highlight-title lg-highlight-function">createIndex</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"invoices"</span> <!-- -->: <span class="lg-highlight-number">1</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <!-- -->}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"majority"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-primary">
primary
</a>
marks index build as ready only after a simple
majority of data-bearing voting members "vote" to commit the index
build. For more information on index builds and the voting process, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/index-creation/#std-label-index-operations-replicated-build">
Index Builds in Replicated Environments
<!-- -->
.
</a>
</p>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Additional Information
<a class="headerlink leafygreen-ui-1kepx47" href="#additional-information" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="additional-information">
</div>
</a>
</h2>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/indexes/">
Indexes
</a>
section of this manual for full
documentation of indexes and indexing in MongoDB.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.getIndexes/#mongodb-method-db.collection.getIndexes">
<code class="leafygreen-ui-1l06pbn">
db.collection.getIndexes()
</code>
</a>
to view the specifications of
existing indexes for a collection.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/indexes/index-types/index-text/#std-label-index-type-text">
Text Indexes on Self-Managed Deployments
</a>
for details on creating
<code class="leafygreen-ui-1l06pbn">
text
</code>
indexes.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/geospatial-queries/#std-label-index-feature-geospatial">
Geospatial Indexes
</a>
for geospatial queries.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/index-ttl/#std-label-index-feature-ttl">
TTL Indexes
</a>
for expiration of data.
</p>
</li>
</ul>
</section>
</section>
|
https://www.mongodb.com/docs/manual/core/csfle/tutorials/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Tutorials
<a class="headerlink leafygreen-ui-1kepx47" href="#tutorials" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="tutorials">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#driver-tutorials" target="_self">
<span>
Driver Tutorials
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#key-management-tutorials" target="_self">
<span>
Key Management Tutorials
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#additional-driver-tutorials" target="_self">
<span>
Additional Driver Tutorials
</span>
</a>
</li>
</ul>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Driver Tutorials
<a class="headerlink leafygreen-ui-1kepx47" href="#driver-tutorials" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="driver-tutorials">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
To view Client-Side Field Level Encryption tutorials that use the following drivers, see the Key
Management Tutorials on this page. Select a Key Management Tutorial, and
then select your driver from the language tab selector on the
upper-right corner of the screen.
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Python
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Node
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Java
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Go
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Dotnet
</p>
</li>
</ul>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Key Management Tutorials
<a class="headerlink leafygreen-ui-1kepx47" href="#key-management-tutorials" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="key-management-tutorials">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Read the following pages to learn how to use Client-Side Field Level Encryption with your preferred
Key Management System:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/csfle/tutorials/aws/aws-automatic/#std-label-csfle-tutorial-automatic-aws">
Use Automatic Client-Side Field Level Encryption with AWS
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/csfle/tutorials/azure/azure-automatic/#std-label-csfle-tutorial-automatic-azure">
Use Automatic Client-Side Field Level Encryption with Azure
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/csfle/tutorials/gcp/gcp-automatic/#std-label-csfle-tutorial-automatic-gcp">
Use Automatic Client-Side Field Level Encryption with GCP
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/csfle/tutorials/kmip/kmip-automatic/#std-label-csfle-tutorial-automatic-kmip">
Use Automatic Client-Side Field Level Encryption with KMIP
</a>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
To learn how to use Client-Side Field Level Encryption with a local key (not for production), see the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/csfle/quick-start/#std-label-csfle-quick-start">
Quick Start
<!-- -->
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
Each tutorial provides a sample application in multiple languages for
each supported Key Management System. See the table below for quick
access to all sample applications.
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:20%"/>
<col style="width:80%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Language
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Code Samples for Specific Key Management System Providers
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Python
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://github.com/mongodb/docs/tree/master/source/includes/generated/in-use-encryption/csfle/python/aws/reader/" rel="noopener noreferrer">
<span>
AWS
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
|
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://github.com/mongodb/docs/tree/master/source/includes/generated/in-use-encryption/csfle/python/azure/reader/" rel="noopener noreferrer">
<span>
Azure
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
|
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://github.com/mongodb/docs/tree/master/source/includes/generated/in-use-encryption/csfle/python/gcp/reader/" rel="noopener noreferrer">
<span>
GCP
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
|
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://github.com/mongodb/docs/tree/master/source/includes/generated/in-use-encryption/csfle/python/kmip/reader/" rel="noopener noreferrer">
<span>
KMIP
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
|
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://github.com/mongodb/docs/tree/master/source/includes/generated/in-use-encryption/csfle/python/local/reader/" rel="noopener noreferrer">
<span>
Local
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Node
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://github.com/mongodb/docs/tree/master/source/includes/generated/in-use-encryption/csfle/node/aws/reader/" rel="noopener noreferrer">
<span>
AWS
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
|
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://github.com/mongodb/docs/tree/master/source/includes/generated/in-use-encryption/csfle/node/azure/reader/" rel="noopener noreferrer">
<span>
Azure
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
|
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://github.com/mongodb/docs/tree/master/source/includes/generated/in-use-encryption/csfle/node/gcp/reader/" rel="noopener noreferrer">
<span>
GCP
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
|
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://github.com/mongodb/docs/tree/master/source/includes/generated/in-use-encryption/csfle/node/kmip/reader/" rel="noopener noreferrer">
<span>
KMIP
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
|
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://github.com/mongodb/docs/tree/master/source/includes/generated/in-use-encryption/csfle/node/local/reader/" rel="noopener noreferrer">
<span>
Local
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Java
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://github.com/mongodb/docs/tree/master/source/includes/generated/in-use-encryption/csfle/java/aws/reader/" rel="noopener noreferrer">
<span>
AWS
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
|
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://github.com/mongodb/docs/tree/master/source/includes/generated/in-use-encryption/csfle/java/azure/reader/" rel="noopener noreferrer">
<span>
Azure
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
|
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://github.com/mongodb/docs/tree/master/source/includes/generated/in-use-encryption/csfle/java/gcp/reader/" rel="noopener noreferrer">
<span>
GCP
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
|
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://github.com/mongodb/docs/tree/master/source/includes/generated/in-use-encryption/csfle/java/kmip/reader/" rel="noopener noreferrer">
<span>
KMIP
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
|
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://github.com/mongodb/docs/tree/master/source/includes/generated/in-use-encryption/csfle/java/local/reader/" rel="noopener noreferrer">
<span>
Local
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Go
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://github.com/mongodb/docs/tree/master/source/includes/generated/in-use-encryption/csfle/go/aws/reader/" rel="noopener noreferrer">
<span>
AWS
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
|
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://github.com/mongodb/docs/tree/master/source/includes/generated/in-use-encryption/csfle/go/azure/reader/" rel="noopener noreferrer">
<span>
Azure
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
|
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://github.com/mongodb/docs/tree/master/source/includes/generated/in-use-encryption/csfle/go/gcp/reader/" rel="noopener noreferrer">
<span>
GCP
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
|
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://github.com/mongodb/docs/tree/master/source/includes/generated/in-use-encryption/csfle/go/kmip/reader/" rel="noopener noreferrer">
<span>
KMIP
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
|
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://github.com/mongodb/docs/tree/master/source/includes/generated/in-use-encryption/csfle/go/local/reader/" rel="noopener noreferrer">
<span>
Local
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Dotnet
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://github.com/mongodb/docs/tree/master/source/includes/generated/in-use-encryption/csfle/dotnet/aws/reader/" rel="noopener noreferrer">
<span>
AWS
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
|
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://github.com/mongodb/docs/tree/master/source/includes/generated/in-use-encryption/csfle/dotnet/azure/reader/" rel="noopener noreferrer">
<span>
Azure
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
|
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://github.com/mongodb/docs/tree/master/source/includes/generated/in-use-encryption/csfle/dotnet/gcp/reader/" rel="noopener noreferrer">
<span>
GCP
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
|
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://github.com/mongodb/docs/tree/master/source/includes/generated/in-use-encryption/csfle/dotnet/kmip/reader/" rel="noopener noreferrer">
<span>
KMIP
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
|
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://github.com/mongodb/docs/tree/master/source/includes/generated/in-use-encryption/csfle/dotnet/local/reader/" rel="noopener noreferrer">
<span>
Local
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Additional Driver Tutorials
<a class="headerlink leafygreen-ui-1kepx47" href="#additional-driver-tutorials" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="additional-driver-tutorials">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
To view CSFLE driver tutorials for other languages, see the
following table for language-specific quick start guides.
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:30%"/>
<col style="width:70%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Driver
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
CSFLE Quick Start
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/drivers/scala/" target="_self">
<span>
Scala
</span>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/languages/scala/scala-driver/current/tutorials/encrypt/" target="_self">
<span>
Scala Driver CSFLE Quick Start
</span>
</a>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/languages/java/reactive-streams-driver/current/" target="_self">
<span>
Java Reactive Streams
</span>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/languages/java/reactive-streams-driver/current/tutorials/encrypt/" target="_self">
<span>
Java Reactive Streams Driver CSFLE Quick Start
</span>
</a>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/drivers/cpp/" target="_self">
<span>
C++
</span>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/languages/cpp/cpp-driver/current/client-side-encryption/" target="_self">
<span>
C++ Driver CSFLE Quick Start
</span>
</a>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/drivers/c/" target="_self">
<span>
C
</span>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/languages/c/c-driver/current/libmongoc/guides/client-side-field-level-encryption/" target="_self">
<span>
C Driver CSFLE Quick Start
</span>
</a>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/drivers/php/" target="_self">
<span>
PHP
</span>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/php-library/current/tutorial/encryption/#client-side-field-level-encryption" target="_self">
<span>
PHP Driver CSFLE Quick Start
</span>
</a>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://docs.mongodb.com/ruby-driver/current/" target="_self">
<span>
Ruby
</span>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/ruby-driver/current/reference/in-use-encryption/client-side-encryption/" target="_self">
<span>
Ruby Driver CSFLE Quick Start
</span>
</a>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</section>
</section>
|
https://www.mongodb.com/docs/manual/core/sharding-refine-a-shard-key/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Refine a Shard Key
<a class="headerlink leafygreen-ui-1kepx47" href="#refine-a-shard-key" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="refine-a-shard-key">
</div>
</a>
</h1>
<p class="leafygreen-ui-1kp3ins">
Refining a collection's shard key allows for a more fine-grained
data distribution and can address situations where the existing key
has led to
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/sharding-data-partitioning/#std-label-jumbo-chunks">
jumbo chunks
</a>
due to insufficient
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/sharding-choose-a-shard-key/#std-label-shard-key-cardinality">
cardinality
<!-- -->
.
</a>
</p>
<div class="leafygreen-ui-1sjx7ru" role="note">
<h2 class="leafygreen-ui-29m78u">
Warning
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Do not modify the range or hashed type for any of the current shard
key fields. It causes data inconsistencies. For example, do not
modify a shard key from
<code class="leafygreen-ui-1l06pbn">
{ customer_id: 1 }
</code>
to
<code class="leafygreen-ui-1l06pbn">
{ customer_id:
"hashed", order_id: 1 }
</code>
.
</p>
</div>
</div>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 5.0, you can also
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/sharding-reshard-a-collection/#std-label-sharding-resharding">
reshard your collection
</a>
by providing a new shard key for the
collection. To learn whether you should reshard your collection
or refine your shard key, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/sharding-change-a-shard-key/#std-label-change-a-shard-key">
Change a Shard Key
<!-- -->
.
</a>
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To refine a collection's shard key, use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/refineCollectionShardKey/#mongodb-dbcommand-dbcmd.refineCollectionShardKey">
<code class="leafygreen-ui-1l06pbn">
refineCollectionShardKey
</code>
</a>
command. The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/refineCollectionShardKey/#mongodb-dbcommand-dbcmd.refineCollectionShardKey">
<code class="leafygreen-ui-1l06pbn">
refineCollectionShardKey
</code>
</a>
adds a suffix field
or fields to the existing key to create the new shard key.
</p>
<p class="leafygreen-ui-1kp3ins">
For example, you may have an existing
<code class="leafygreen-ui-1l06pbn">
orders
</code>
collection in a
<code class="leafygreen-ui-1l06pbn">
test
</code>
database with the shard key
<code class="leafygreen-ui-1l06pbn">
{ customer_id: 1 }
</code>
. You can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/refineCollectionShardKey/#mongodb-dbcommand-dbcmd.refineCollectionShardKey">
<code class="leafygreen-ui-1l06pbn">
refineCollectionShardKey
</code>
</a>
command to change the
shard key to the new shard key
<code class="leafygreen-ui-1l06pbn">
{ customer_id: 1, order_id: 1 }
</code>
:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand( {\n refineCollectionShardKey: \"test.orders\",\n key: { customer_id: 1, order_id: 1 }\n} )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>( <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">refineCollectionShardKey</span>: <span class="lg-highlight-string">"test.orders"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">key</span>: <!-- -->{ <span class="lg-highlight-attr">customer_id</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-attr">order_id</span>: <span class="lg-highlight-number">1</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">} )</td></tr></tbody></table></code></pre>
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|
https://www.mongodb.com/docs/manual/reference/command/getShardMap/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
getShardMap
<a class="headerlink leafygreen-ui-1kepx47" href="#getshardmap" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="getshardmap">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#compatibility" target="_self">
<span>
Compatibility
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#syntax" target="_self">
<span>
Syntax
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#learn-more" target="_self">
<span>
Learn More
</span>
</a>
</li>
</ul>
</div>
<dl class="dbcommand">
<dt>
<code class="leafygreen-ui-1l06pbn">
getShardMap
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-dbcommand-dbcmd.getShardMap" title="Permalink to this definition">
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<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
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<div class="css-1btu0w3 evvkmar0" id="mongodb-dbcommand-dbcmd.getShardMap">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.getShardMap" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
getShardMap
</code>
</span>
</a>
returns the following information about
your cluster:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The names of your shards and the config server replica set
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Hostnames and connection strings for the nodes that comprise the
cluster's shards and the config server replica set
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
You must use the admin database to run
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.getShardMap" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
getShardMap
</code>
.
</span>
</a>
</p>
</dd>
</dl>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Compatibility
<a class="headerlink leafygreen-ui-1kepx47" href="#compatibility" title="Permalink to this heading">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="compatibility">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
This command is available in deployments hosted in the following environments:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas?tck=docs_server" target="_self">
<span>
MongoDB Atlas
</span>
</a>
: The fully
managed service for MongoDB deployments in the cloud
</p>
</li>
</ul>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
This command is not supported in M0, M2, and M5 clusters or in serverless instances.
For more information, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/unsupported-commands/" target="_self">
<span>
Unsupported Commands
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/install-enterprise/#std-label-install-mdb-enterprise">
MongoDB Enterprise
</a>
: The
subscription-based, self-managed version of MongoDB
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/install-community/#std-label-install-mdb-community-edition">
MongoDB Community
</a>
: The
source-available, free-to-use, and self-managed version of MongoDB
</p>
</li>
</ul>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Syntax
<a class="headerlink leafygreen-ui-1kepx47" href="#syntax" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="syntax">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The command has the following syntax:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.runCommand(\"getShardMap\")","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">runCommand</span>(<span class="lg-highlight-string">"getShardMap"</span>)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
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</div>
</div>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Output Document
<a class="headerlink leafygreen-ui-1kepx47" href="#output-document" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="output-document">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Here's an example of the output the command returns:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n map: {\n shard01: 'shard01/localhost:27018,localhost:27019,localhost:27020,localhost:27021,localhost:27022',\n shard02: 'shard02/localhost:27023,localhost:27024,localhost:27025,localhost:27026,localhost:27027',\n shard03: 'shard03/localhost:27028,localhost:27029,localhost:27030,localhost:27031,localhost:27032',\n config: 'configRepl/localhost:27033',localhost:27034,localhost:27035,localhost:27036,localhost:27037'\n },\n hosts: {\n 'localhost:27021': 'shard01',\n 'localhost:27022': 'shard01',\n 'localhost:27028': 'shard03',\n 'localhost:27026': 'shard02',\n 'localhost:27020': 'shard01',\n 'localhost:27032': 'shard03',\n 'localhost:27027': 'shard02',\n 'localhost:27024': 'shard02',\n 'localhost:27018': 'shard01',\n 'localhost:27019': 'shard01',\n 'localhost:27031': 'shard03',\n 'localhost:27025': 'shard02',\n 'localhost:27029': 'shard03',\n 'localhost:27023': 'shard02',\n 'localhost:27030': 'shard03',\n 'localhost:27033': 'config'\n 'localhost:27036': 'config'\n 'localhost:27034': 'config'\n 'localhost:27037': 'config'\n 'localhost:27035': 'config'\n },\n connStrings: {\n 'shard01/localhost:27018,localhost:27019,localhost:27020,localhost:27021,localhost:27022': 'shard01',\n 'shard01/localhost:27019,localhost:27020,localhost:27021': 'shard01',\n 'shard01/localhost:27020,localhost:27021': 'shard01',\n 'shard01/localhost:27021': 'shard01',\n 'shard02/localhost:27023,localhost:27024,localhost:27025,localhost:27026,localhost:27027': 'shard02',\n 'shard02/localhost:27025,localhost:27026,localhost:27027': 'shard02',\n 'shard02/localhost:27025,localhost:27027': 'shard02',\n 'shard03/localhost:27028,localhost:27029,localhost:27030,localhost:27031,localhost:27032': 'shard03',\n 'shard03/localhost:27032': 'shard03',\n 'configRepl/localhost:27033',localhost:27036,localhost:27034,localhost:27037,localhost:27035': 'config'\n },\n ok: 1\n}","programmingLanguage":"JSON"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light json leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-punctuation">{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> map<span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-punctuation">{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> shard01<span class="lg-highlight-punctuation">:</span> 'shard01/localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27018</span><span class="lg-highlight-punctuation">,</span>localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27019</span><span class="lg-highlight-punctuation">,</span>localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27020</span><span class="lg-highlight-punctuation">,</span>localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27021</span><span class="lg-highlight-punctuation">,</span>localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27022</span>'<span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> shard02<span class="lg-highlight-punctuation">:</span> 'shard02/localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27023</span><span class="lg-highlight-punctuation">,</span>localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27024</span><span class="lg-highlight-punctuation">,</span>localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27025</span><span class="lg-highlight-punctuation">,</span>localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27026</span><span class="lg-highlight-punctuation">,</span>localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27027</span>'<span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> shard03<span class="lg-highlight-punctuation">:</span> 'shard03/localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27028</span><span class="lg-highlight-punctuation">,</span>localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27029</span><span class="lg-highlight-punctuation">,</span>localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27030</span><span class="lg-highlight-punctuation">,</span>localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27031</span><span class="lg-highlight-punctuation">,</span>localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27032</span>'<span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> config<span class="lg-highlight-punctuation">:</span> 'configRepl/localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27033</span>'<span class="lg-highlight-punctuation">,</span>localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27034</span><span class="lg-highlight-punctuation">,</span>localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27035</span><span class="lg-highlight-punctuation">,</span>localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27036</span><span class="lg-highlight-punctuation">,</span>localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27037</span>'</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-punctuation">}</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> hosts<span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-punctuation">{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> 'localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27021</span>'<span class="lg-highlight-punctuation">:</span> 'shard01'<span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> 'localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27022</span>'<span class="lg-highlight-punctuation">:</span> 'shard01'<span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> 'localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27028</span>'<span class="lg-highlight-punctuation">:</span> 'shard03'<span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> 'localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27026</span>'<span class="lg-highlight-punctuation">:</span> 'shard02'<span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> 'localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27020</span>'<span class="lg-highlight-punctuation">:</span> 'shard01'<span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> 'localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27032</span>'<span class="lg-highlight-punctuation">:</span> 'shard03'<span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> 'localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27027</span>'<span class="lg-highlight-punctuation">:</span> 'shard02'<span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> 'localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27024</span>'<span class="lg-highlight-punctuation">:</span> 'shard02'<span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> 'localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27018</span>'<span class="lg-highlight-punctuation">:</span> 'shard01'<span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> 'localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27019</span>'<span class="lg-highlight-punctuation">:</span> 'shard01'<span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> 'localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27031</span>'<span class="lg-highlight-punctuation">:</span> 'shard03'<span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> 'localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27025</span>'<span class="lg-highlight-punctuation">:</span> 'shard02'<span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> 'localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27029</span>'<span class="lg-highlight-punctuation">:</span> 'shard03'<span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> 'localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27023</span>'<span class="lg-highlight-punctuation">:</span> 'shard02'<span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> 'localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27030</span>'<span class="lg-highlight-punctuation">:</span> 'shard03'<span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> 'localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27033</span>'<span class="lg-highlight-punctuation">:</span> 'config'</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> 'localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27036</span>'<span class="lg-highlight-punctuation">:</span> 'config'</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> 'localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27034</span>'<span class="lg-highlight-punctuation">:</span> 'config'</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> 'localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27037</span>'<span class="lg-highlight-punctuation">:</span> 'config'</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> 'localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27035</span>'<span class="lg-highlight-punctuation">:</span> 'config'</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-punctuation">}</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> connStrings<span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-punctuation">{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> 'shard01/localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27018</span><span class="lg-highlight-punctuation">,</span>localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27019</span><span class="lg-highlight-punctuation">,</span>localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27020</span><span class="lg-highlight-punctuation">,</span>localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27021</span><span class="lg-highlight-punctuation">,</span>localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27022</span>'<span class="lg-highlight-punctuation">:</span> 'shard01'<span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> 'shard01/localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27019</span><span class="lg-highlight-punctuation">,</span>localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27020</span><span class="lg-highlight-punctuation">,</span>localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27021</span>'<span class="lg-highlight-punctuation">:</span> 'shard01'<span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> 'shard01/localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27020</span><span class="lg-highlight-punctuation">,</span>localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27021</span>'<span class="lg-highlight-punctuation">:</span> 'shard01'<span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> 'shard01/localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27021</span>'<span class="lg-highlight-punctuation">:</span> 'shard01'<span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> 'shard02/localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27023</span><span class="lg-highlight-punctuation">,</span>localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27024</span><span class="lg-highlight-punctuation">,</span>localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27025</span><span class="lg-highlight-punctuation">,</span>localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27026</span><span class="lg-highlight-punctuation">,</span>localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27027</span>'<span class="lg-highlight-punctuation">:</span> 'shard02'<span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> 'shard02/localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27025</span><span class="lg-highlight-punctuation">,</span>localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27026</span><span class="lg-highlight-punctuation">,</span>localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27027</span>'<span class="lg-highlight-punctuation">:</span> 'shard02'<span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> 'shard02/localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27025</span><span class="lg-highlight-punctuation">,</span>localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27027</span>'<span class="lg-highlight-punctuation">:</span> 'shard02'<span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> 'shard03/localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27028</span><span class="lg-highlight-punctuation">,</span>localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27029</span><span class="lg-highlight-punctuation">,</span>localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27030</span><span class="lg-highlight-punctuation">,</span>localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27031</span><span class="lg-highlight-punctuation">,</span>localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27032</span>'<span class="lg-highlight-punctuation">:</span> 'shard03'<span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> 'shard03/localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27032</span>'<span class="lg-highlight-punctuation">:</span> 'shard03'<span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> 'configRepl/localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27033</span>'<span class="lg-highlight-punctuation">,</span>localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27036</span><span class="lg-highlight-punctuation">,</span>localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27034</span><span class="lg-highlight-punctuation">,</span>localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27037</span><span class="lg-highlight-punctuation">,</span>localhost<span class="lg-highlight-punctuation">:</span><span class="lg-highlight-number">27035</span>'<span class="lg-highlight-punctuation">:</span> 'config'</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-punctuation">}</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ok<span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-number">1</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-punctuation">}</span></td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The command returns the following fields:
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:20%"/>
<col style="width:80%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Field
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
"map"
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
List of shards in the cluster, the config server for the
cluster, and the hostname and port for every node in the cluster.
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
"hosts"
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
List of hostnames and ports for the nodes of the cluster and the
shards or config server to which they map.
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
"connStrings"
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
List of connection strings for the nodes grouped by the shard or
config server the node belongs to.
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Learn More
<a class="headerlink leafygreen-ui-1kepx47" href="#learn-more" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="learn-more">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
For more sharding commands, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/nav-sharding/#std-label-db-commands-sharding">
Sharding Commands
<!-- -->
.
</a>
</p>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/operator/query-comparison/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Comparison Query Operators
<a class="headerlink leafygreen-ui-1kepx47" href="#comparison-query-operators" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="comparison-query-operators">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#compatibility" target="_self">
<span>
Compatibility
</span>
</a>
</li>
</ul>
</div>
<p class="leafygreen-ui-1kp3ins">
Comparison operators return data based on value comparisons.
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
For details on a specific operator, including syntax and examples,
click on the link to the operator's reference page.
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
For comparison of different BSON type values, see the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/bson-type-comparison-order/#std-label-bson-types-comparison-order">
specified
BSON comparison order
<!-- -->
.
</a>
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:30%"/>
<col style="width:70%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Name
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/eq/#mongodb-query-op.-eq">
<code class="leafygreen-ui-1l06pbn">
$eq
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Matches values that are equal to a specified value.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/gt/#mongodb-query-op.-gt">
<code class="leafygreen-ui-1l06pbn">
$gt
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Matches values that are greater than a specified value.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/gte/#mongodb-query-op.-gte">
<code class="leafygreen-ui-1l06pbn">
$gte
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Matches values that are greater than or equal to a specified value.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/in/#mongodb-query-op.-in">
<code class="leafygreen-ui-1l06pbn">
$in
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Matches any of the values specified in an array.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/lt/#mongodb-query-op.-lt">
<code class="leafygreen-ui-1l06pbn">
$lt
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Matches values that are less than a specified value.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/lte/#mongodb-query-op.-lte">
<code class="leafygreen-ui-1l06pbn">
$lte
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Matches values that are less than or equal to a specified value.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/ne/#mongodb-query-op.-ne">
<code class="leafygreen-ui-1l06pbn">
$ne
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Matches all values that are not equal to a specified value.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/nin/#mongodb-query-op.-nin">
<code class="leafygreen-ui-1l06pbn">
$nin
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Matches none of the values specified in an array.
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Compatibility
<a class="headerlink leafygreen-ui-1kepx47" href="#compatibility" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="compatibility">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
You can use
<!-- -->
comparison operators
<!-- -->
for deployments hosted in the following
environments:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas?tck=docs_server" target="_self">
<span>
MongoDB Atlas
</span>
</a>
: The fully
managed service for MongoDB deployments in the cloud
</p>
</li>
</ul>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/install-enterprise/#std-label-install-mdb-enterprise">
MongoDB Enterprise
</a>
: The
subscription-based, self-managed version of MongoDB
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/install-community/#std-label-install-mdb-community-edition">
MongoDB Community
</a>
: The
source-available, free-to-use, and self-managed version of MongoDB
</p>
</li>
</ul>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/method/WriteResult.hasWriteConcernError/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
WriteResult.hasWriteConcernError()
<a class="headerlink leafygreen-ui-1kepx47" href="#writeresult.haswriteconcernerror--" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="writeresult.haswriteconcernerror--">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#definition" target="_self">
<span>
Definition
</span>
</a>
</li>
</ul>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Definition
<a class="headerlink leafygreen-ui-1kepx47" href="#definition" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="definition">
</div>
</a>
</h2>
<dl class="method">
<dt>
<code class="leafygreen-ui-1l06pbn">
WriteResult.hasWriteConcernError()
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-method-WriteResult.hasWriteConcernError" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-method-WriteResult.hasWriteConcernError">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Returns
<code class="leafygreen-ui-1l06pbn">
true
</code>
if the result of a
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
write
method has
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/WriteResult/#mongodb-data-WriteResult.writeConcernError">
<code class="leafygreen-ui-1l06pbn">
WriteResult.writeConcernError
</code>
</a>
. Otherwise, the
method returns
<code class="leafygreen-ui-1l06pbn">
false
</code>
.
</p>
</dd>
</dl>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/WriteResult/#mongodb-method-WriteResult">
<code class="leafygreen-ui-1l06pbn">
WriteResult()
</code>
</a>
</p>
</div>
</div>
</section>
</section>
|
https://www.mongodb.com/docs/manual/core/map-reduce-sharded-collections/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Map-Reduce and Sharded Collections
<a class="headerlink leafygreen-ui-1kepx47" href="#map-reduce-and-sharded-collections" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="map-reduce-and-sharded-collections">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#sharded-collection-as-input" target="_self">
<span>
Sharded Collection as Input
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#sharded-collection-as-output" target="_self">
<span>
Sharded Collection as Output
</span>
</a>
</li>
</ul>
</div>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
Aggregation Pipeline as an Alternative to Map-Reduce
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 5.0,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/map-reduce/#std-label-map-reduce">
map-reduce
</a>
is
deprecated:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Instead of
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/map-reduce/#std-label-map-reduce">
map-reduce
</a>
, you should use an
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/aggregation-pipeline/#std-label-aggregation-pipeline">
aggregation pipeline
</a>
. Aggregation
pipelines provide better performance and usability than map-reduce.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
You can rewrite map-reduce operations using
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation-pipeline/#std-label-aggregation-pipeline-operator-reference">
aggregation pipeline
stages
</a>
, such as
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/group/#mongodb-pipeline-pipe.-group">
<code class="leafygreen-ui-1l06pbn">
$group
</code>
</a>
,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/merge/#mongodb-pipeline-pipe.-merge">
<code class="leafygreen-ui-1l06pbn">
$merge
</code>
</a>
, and others.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For map-reduce operations that require custom functionality, you can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/accumulator/#mongodb-group-grp.-accumulator">
<code class="leafygreen-ui-1l06pbn">
$accumulator
</code>
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/function/#mongodb-expression-exp.-function">
<code class="leafygreen-ui-1l06pbn">
$function
</code>
</a>
aggregation
operators. You can use those
operators to define custom aggregation expressions in JavaScript.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
For examples of aggregation pipeline alternatives to map-reduce, see:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/map-reduce-to-aggregation-pipeline/">
Map-Reduce to Aggregation Pipeline
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/map-reduce-examples/">
Map-Reduce Examples
</a>
</p>
</li>
</ul>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Map-reduce supports operations on sharded collections, both as an input
and as an output. This section describes the behaviors of
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/mapReduce/#mongodb-dbcommand-dbcmd.mapReduce">
<code class="leafygreen-ui-1l06pbn">
mapReduce
</code>
</a>
specific to sharded collections.
</p>
<span class="leafygreen-ui-1qnjd6d" id="std-label-map-reduce-sharded-cluster">
</span>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Sharded Collection as Input
<a class="headerlink leafygreen-ui-1kepx47" href="#sharded-collection-as-input" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="sharded-collection-as-input">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
When using sharded collection as the input for a map-reduce operation,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
will automatically dispatch the map-reduce job to
each shard in parallel. There is no special option
required.
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
will wait for jobs on all shards to
finish.
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Sharded Collection as Output
<a class="headerlink leafygreen-ui-1kepx47" href="#sharded-collection-as-output" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="sharded-collection-as-output">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
If the
<code class="leafygreen-ui-1l06pbn">
out
</code>
field for
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/mapReduce/#mongodb-dbcommand-dbcmd.mapReduce">
<code class="leafygreen-ui-1l06pbn">
mapReduce
</code>
</a>
has the
<code class="leafygreen-ui-1l06pbn">
sharded
</code>
value, MongoDB shards the output collection using the
<code class="leafygreen-ui-1l06pbn">
_id
</code>
field as
the shard key.
</p>
<p class="leafygreen-ui-1kp3ins">
To output to a sharded collection:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
If the output collection does not exist, create the sharded
collection first.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
If the output collection already exists but is not sharded, map-reduce fails.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For a new or an empty sharded collection, MongoDB uses the results of
the first stage of the map-reduce operation to create the initial
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-chunk">
chunks
</a>
distributed among the shards.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
dispatches, in parallel, a map-reduce
post-processing job to every shard that owns a chunk. During the
post-processing, each shard will pull the results
for its own chunks from the other shards, run the final
reduce/finalize, and write locally to the output collection.
</p>
</li>
</ul>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
During later map-reduce jobs, MongoDB splits chunks as needed.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Balancing of chunks for the output collection is automatically
prevented during post-processing to avoid concurrency issues.
</p>
</li>
</ul>
</div>
</div>
</section>
</section>
|
https://www.mongodb.com/docs/manual/tutorial/configure-ssl/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Configure
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
and
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
for TLS/SSL
<a class="headerlink leafygreen-ui-1kepx47" href="#configure-mongod-and-mongos-for-tls-ssl" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="configure-mongod-and-mongos-for-tls-ssl">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#overview" target="_self">
<span>
Overview
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#prerequisites" target="_self">
<span>
Prerequisites
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#certificate-authorities" target="_self">
<span>
Certificate Authorities
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#mongod-and-mongos-certificate-key-file" target="_self">
<span>
<code class="css-1kekw28 e1wawog0">
mongod
</code>
and
<code class="css-1kekw28 e1wawog0">
mongos
</code>
Certificate Key File
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#procedures--using-net.tls-settings-" target="_self">
<span>
Procedures (Using
<code class="css-1kekw28 e1wawog0">
net.tls
</code>
Settings)
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#set-up-mongod-and-mongos-with-tls-ssl-certificate-and-key" target="_self">
<span>
Set Up
<code class="css-1kekw28 e1wawog0">
mongod
</code>
and
<code class="css-1kekw28 e1wawog0">
mongos
</code>
with TLS/SSL Certificate and Key
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#set-up-mongod-and-mongos-with-client-certificate-validation" target="_self">
<span>
Set Up
<code class="css-1kekw28 e1wawog0">
mongod
</code>
and
<code class="css-1kekw28 e1wawog0">
mongos
</code>
with Client Certificate Validation
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#disallow-protocols" target="_self">
<span>
Disallow Protocols
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#tls-ssl-certificate-passphrase" target="_self">
<span>
TLS/SSL Certificate Passphrase
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#online-certificate-rotation" target="_self">
<span>
Online Certificate Rotation
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#run-in-fips-mode" target="_self">
<span>
Run in FIPS Mode
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#next-steps" target="_self">
<span>
Next Steps
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#procedures--using-net.ssl-settings-" target="_self">
<span>
Procedures (Using
<code class="css-1kekw28 e1wawog0">
net.ssl
</code>
Settings)
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#set-up-mongod-and-mongos-with-tls-ssl-certificate-and-key-1" target="_self">
<span>
Set Up
<code class="css-1kekw28 e1wawog0">
mongod
</code>
and
<code class="css-1kekw28 e1wawog0">
mongos
</code>
with TLS/SSL Certificate and Key
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#set-up-mongod-and-mongos-with-client-certificate-validation-1" target="_self">
<span>
Set Up
<code class="css-1kekw28 e1wawog0">
mongod
</code>
and
<code class="css-1kekw28 e1wawog0">
mongos
</code>
with Client Certificate Validation
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#disallow-protocols-1" target="_self">
<span>
Disallow Protocols
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#tls-ssl-certificate-passphrase-1" target="_self">
<span>
TLS/SSL Certificate Passphrase
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#run-in-fips-mode-1" target="_self">
<span>
Run in FIPS Mode
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#next-steps-1" target="_self">
<span>
Next Steps
</span>
</a>
</li>
</ul>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Overview
<a class="headerlink leafygreen-ui-1kepx47" href="#overview" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="overview">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
This document helps you to configure a new MongoDB instance to support
TLS/SSL. For instructions on upgrading a cluster currently not using
TLS/SSL to using TLS/SSL, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/upgrade-cluster-to-ssl/">
Upgrade a Cluster to Use TLS/SSL
</a>
instead.
</p>
<p class="leafygreen-ui-1kp3ins">
MongoDB uses the native TLS/SSL OS libraries:
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Platform
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
TLS/SSL Library
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Windows
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Secure Channel (Schannel)
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Linux/BSD
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
OpenSSL
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
macOS
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Secure Transport
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
MongoDB
<!-- -->
disables support for TLS 1.0
encryption on systems where TLS 1.1+ is available.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
MongoDB's TLS/SSL encryption only allows the use of strong TLS/SSL
ciphers with a minimum of 128-bit key length for all connections.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<em>
Linux 64-bit legacy x64
</em>
builds of MongoDB do
<strong>
not
</strong>
include
support for TLS/SSL.
</p>
</li>
</ul>
</div>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Prerequisites
<a class="headerlink leafygreen-ui-1kepx47" href="#prerequisites" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="prerequisites">
</div>
</a>
</h2>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
A full description of TLS/SSL, PKI (Public Key Infrastructure) certificates, and Certificate Authority is beyond the scope of this document.
This page assumes prior knowledge of TLS/SSL as well as access to valid certificates.
</p>
</div>
</div>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Certificate Authorities
<a class="headerlink leafygreen-ui-1kepx47" href="#certificate-authorities" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="certificate-authorities">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
For production use, your MongoDB deployment should use valid
certificates generated and signed by a certificate authority. You or
your organization can generate and maintain an independent certificate
authority, or use certificates generated by third-party TLS vendors.
Obtaining and managing certificates is beyond the scope of this
documentation.
</p>
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Member Certificate Requirements
<a class="headerlink leafygreen-ui-1kepx47" href="#member-certificate-requirements" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="member-certificate-requirements">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
Use member certificates to verify membership to a sharded
cluster or a replica set. Member certificate file paths are
configured with the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-net.tls.clusterFile">
<code class="leafygreen-ui-1l06pbn">
net.tls.clusterFile
</code>
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-net.tls.certificateKeyFile">
<code class="leafygreen-ui-1l06pbn">
net.tls.certificateKeyFile
</code>
</a>
options. Members have the
following configuration requirements:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Cluster member configuration must specify a non-empty value for
at least one of the attributes used for authentication. By default, MongoDB accepts:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
the Organization (
<code class="leafygreen-ui-1l06pbn">
O
</code>
)
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
the Organizational Unit (
<code class="leafygreen-ui-1l06pbn">
OU
</code>
)
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
the Domain Component (
<code class="leafygreen-ui-1l06pbn">
DC
</code>
)
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
You can specify alternative attributes to use for authentication by
setting
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-net.tls.clusterAuthX509.extensionValue">
<code class="leafygreen-ui-1l06pbn">
net.tls.clusterAuthX509.extensionValue
</code>
.
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Cluster member configuration must include the same
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-net.tls.clusterAuthX509.attributes">
<code class="leafygreen-ui-1l06pbn">
net.tls.clusterAuthX509.attributes
</code>
</a>
and use matching values.
Attribute order doesn't matter. The following example sets
<code class="leafygreen-ui-1l06pbn">
O
</code>
and
<code class="leafygreen-ui-1l06pbn">
OU
</code>
, but not
<code class="leafygreen-ui-1l06pbn">
DC
</code>
:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"net:\n tls:\n clusterAuthX509:\n attributes: O=MongoDB, OU=MongoDB Server","programmingLanguage":"YAML"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light yaml leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">net:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">tls:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">clusterAuthX509:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">attributes:</span> <span class="lg-highlight-string">O=MongoDB,</span> <span class="lg-highlight-string">OU=MongoDB</span> <span class="lg-highlight-string">Server</span></td></tr></tbody></table></code></pre>
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</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
</ul>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
If you disable the
<code class="leafygreen-ui-1l06pbn">
enforceUserClusterSeparation
</code>
parameter, the
following behaviors apply:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
O/OU/DC
</code>
check is disabled if
<code class="leafygreen-ui-1l06pbn">
clusterAuthMode
</code>
is
<code class="leafygreen-ui-1l06pbn">
keyFile
</code>
in your configuration file. This allows clients
possessing member certificates to authenticate as users stored in
the
<code class="leafygreen-ui-1l06pbn">
$external
</code>
database.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The server won't start if
<code class="leafygreen-ui-1l06pbn">
clusterAuthMode
</code>
isn't
<code class="leafygreen-ui-1l06pbn">
keyFile
</code>
in
your configuration file.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
If you set the
<code class="leafygreen-ui-1l06pbn">
enforceUserClusterSeparation
</code>
parameter to
<code class="leafygreen-ui-1l06pbn">
false
</code>
,
the server doesn't distinguish between client certificates, which
applications use to authenticate, and intra-cluster certificates, which
have privileged access. This has no effect if your
<code class="leafygreen-ui-1l06pbn">
clusterAuthMode
</code>
is
<code class="leafygreen-ui-1l06pbn">
keyFile
</code>
. However, if your
<code class="leafygreen-ui-1l06pbn">
clusterAuthMode
</code>
is
<code class="leafygreen-ui-1l06pbn">
x509
</code>
, user
certificates that use the allowed scheme are conflated with cluster
certificates and granted privileged access.
</p>
<p class="leafygreen-ui-1kp3ins">
Your existing certificates are granted internal privileges if you do the
following:
</p>
<ol class="leafygreen-ui-rioki0" type="1">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Create a user, with a name allowed by this parameter.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Set the
<code class="leafygreen-ui-1l06pbn">
enforceUserClusterSeparation
</code>
parameter to
<code class="leafygreen-ui-1l06pbn">
false
</code>
.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Set
<code class="leafygreen-ui-1l06pbn">
clusterAuthMode
</code>
to
<code class="leafygreen-ui-1l06pbn">
x509
</code>
.
</p>
</li>
</ol>
<p class="leafygreen-ui-1kp3ins">
You must not upgrade from
<code class="leafygreen-ui-1l06pbn">
keyFile
</code>
to
<code class="leafygreen-ui-1l06pbn">
x509
</code>
without validating
that you've removed users with elevated privileges that the
<code class="leafygreen-ui-1l06pbn">
enforceUserClusterSeparation
</code>
flag allowed you to create.
</p>
<p class="leafygreen-ui-1kp3ins">
To set the
<code class="leafygreen-ui-1l06pbn">
enforceUserClusterSeparation
</code>
parameter to
<code class="leafygreen-ui-1l06pbn">
false
</code>
, run the following command during startup:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"mongod --setParameter enforceUserClusterSeparation=false","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">mongod <!-- -->-<!-- -->-<!-- -->setParameter enforceUserClusterSeparation<!-- -->=<span class="lg-highlight-literal">false</span></td></tr></tbody></table></code></pre>
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<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
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</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The certificates have the following requirements:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
A single Certificate Authority (CA) must issue all x.509 certificates
for the members of a sharded cluster or a replica set.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
At least one of the Subject Alternative Name (
<code class="leafygreen-ui-1l06pbn">
SAN
</code>
) entries must
match the server hostname used by other cluster members. When
comparing
<code class="leafygreen-ui-1l06pbn">
SAN
</code>
s, MongoDB can compare either DNS names or IP addresses.
</p>
<p class="leafygreen-ui-1kp3ins">
If you don't specify
<code class="leafygreen-ui-1l06pbn">
subjectAltName
</code>
, MongoDB compares the Common
Name (CN) instead. However, this usage of CN is deprecated per
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://datatracker.ietf.org/doc/html/rfc2818" rel="noopener noreferrer">
<span>
RFC2818
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
If the certificate used as the
<code class="leafygreen-ui-1l06pbn">
certificateKeyFile
</code>
includes
<code class="leafygreen-ui-1l06pbn">
extendedKeyUsage
</code>
, the value must include both
<code class="leafygreen-ui-1l06pbn">
clientAuth
</code>
("TLS Web Client Authentication") and
<code class="leafygreen-ui-1l06pbn">
serverAuth
</code>
("TLS Web Server Authentication").
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"extendedKeyUsage = clientAuth, serverAuth"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light none leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">extendedKeyUsage = clientAuth, serverAuth</td></tr></tbody></table></code></pre>
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
If the certificate used as the
<code class="leafygreen-ui-1l06pbn">
clusterFile
</code>
includes
<code class="leafygreen-ui-1l06pbn">
extendedKeyUsage
</code>
, the value must include
<code class="leafygreen-ui-1l06pbn">
clientAuth
</code>
.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"extendedKeyUsage = clientAuth"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light none leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">extendedKeyUsage = clientAuth</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</svg>
</div>
</button>
</div>
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</div>
</li>
</ul>
</section>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
and
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
Certificate Key File
<a class="headerlink leafygreen-ui-1kepx47" href="#mongod-and-mongos-certificate-key-file" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongod-and-mongos-certificate-key-file">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
When establishing a TLS/SSL connection, the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
/
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
presents a certificate key
file to its clients to establish its identity.
<a class="footnote-reference header-buffer" href="#footnote-FIPS" id="ref-FIPS-id1">
[
<!-- -->
1
<!-- -->
]
</a>
The certificate
key file contains a public key certificate and its associated private
key, but only the public component is revealed to the client.
</p>
<p class="leafygreen-ui-1kp3ins">
MongoDB can use any valid TLS/SSL certificate issued by a certificate
authority, or a self-signed certificate. If you use a self-signed
certificate, although the communications channel will be encrypted to
prevent eavesdropping on the connection, there will be
<em>
no
</em>
validation
of server identity. This leaves you vulnerable to a man-in-the-middle
attack. Using a certificate signed by a trusted certificate authority
will permit MongoDB drivers to verify the server's identity.
</p>
<p class="leafygreen-ui-1kp3ins">
In general, avoid using self-signed certificates unless the network is
trusted.
</p>
<p class="leafygreen-ui-1kp3ins">
With regards to certificates for replica set and sharded cluster
members, it is advisable to use different certificates on different
servers. This minimizes exposure of the private key and allows for
hostname validation.
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
If a MongoDB deployment is not configured to use a CA file, it bypasses client
certificate validation.
</p>
</div>
</div>
<table class="header-buffer leafygreen-ui-rbqgrl" frame="void" id="footnote-FIPS" rules="none">
<colgroup>
<col/>
</colgroup>
<tbody valign="top">
<tr>
<td class="leafygreen-ui-17r2xs0">
[
<a href="#ref-FIPS-id1">
1
</a>
]
</td>
<td class="leafygreen-ui-17r2xs0">
<!-- -->
For FIPS mode, ensure that the certificate is FIPS-compliant (i.e
uses a FIPS-compliant algorithm) and the private key meets the
PKCS#8 standard. If you need to convert a private key to PKCS#8
format, various conversion tools exist, such as
<code class="leafygreen-ui-1l06pbn">
openssl pkcs8
</code>
and others.
</td>
</tr>
</tbody>
</table>
<span class="leafygreen-ui-1qnjd6d" id="std-label-configure-tls">
</span>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Procedures (Using
<code class="leafygreen-ui-1l06pbn">
net.tls
</code>
Settings)
<a class="headerlink leafygreen-ui-1kepx47" href="#procedures--using-net.tls-settings-" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="procedures--using-net.tls-settings-">
</div>
</a>
</h2>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
MongoDB provides
<code class="leafygreen-ui-1l06pbn">
net.tls
</code>
settings (and
<code class="leafygreen-ui-1l06pbn">
--tls
</code>
command-line options) that
correspond to the
<code class="leafygreen-ui-1l06pbn">
net.ssl
</code>
settings (and
<code class="leafygreen-ui-1l06pbn">
--ssl
</code>
command-line options).
The new
<code class="leafygreen-ui-1l06pbn">
tls
</code>
settings provide
<strong>
identical
</strong>
functionality as the
<code class="leafygreen-ui-1l06pbn">
ssl
</code>
settings since MongoDB has always supported TLS 1.0 and later.
</p>
<p class="leafygreen-ui-1kp3ins">
The procedures in this section use the
<code class="leafygreen-ui-1l06pbn">
net.tls
</code>
settings. For
procedures using the
<code class="leafygreen-ui-1l06pbn">
net.ssl
</code>
alias, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-configure-ssl" target="_self">
<span>
Procedures (Using
<code class="leafygreen-ui-1l06pbn">
net.ssl
</code>
Settings)
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-ssl-mongod-ssl-cert-key">
</span>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Set Up
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
and
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
with TLS/SSL Certificate and Key
<a class="headerlink leafygreen-ui-1kepx47" href="#set-up-mongod-and-mongos-with-tls-ssl-certificate-and-key" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="set-up-mongod-and-mongos-with-tls-ssl-certificate-and-key">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The following section configures
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
/
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
to use TLS/SSL connections.
With these TLS/SSL settings,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
/
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
presents its certificate
key file to the client. However, the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
/
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
does not require a
certificate key file from the client to verify the client's identity.
To require client's certificate key file, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-ssl-mongod-ca-signed-ssl-cert-key" target="_self">
<span>
Set Up
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
and
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
with Client Certificate Validation
</span>
</a>
instead.
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
The procedure uses the
<code class="leafygreen-ui-1l06pbn">
net.tls
</code>
settings. For procedures that use the
<code class="leafygreen-ui-1l06pbn">
net.ssl
</code>
settings, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-configure-ssl" target="_self">
<span>
Procedures (Using
<code class="leafygreen-ui-1l06pbn">
net.ssl
</code>
Settings)
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To use TLS/SSL connections, include the following
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#std-label-net-tls-conf-options">
TLS/SSL
settings
</a>
in your
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
/
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instance's
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#std-label-conf-file">
configuration file
<!-- -->
:
</a>
</p>
<div aria-hidden="true">
</div>
<div class="leafygreen-ui-1b75luy" data-lgid="lg-tabs">
<div class="leafygreen-ui-jp7pox" id="tabs-11">
<div aria-label="Tabs to describe usage of certstore/pem" aria-orientation="horizontal" class="leafygreen-ui-m8p1vb lg-ui-tab-list-0000" data-lgid="lg-tabs-tab_list" role="tablist">
<button aria-controls="_siyq1g8ls" aria-selected="true" class="leafygreen-ui-1l773z1" data-text="" id="_7nbbwv92k" name="" role="tab" tabindex="0">
<div class="leafygreen-ui-1nxuzmg">
PEMKeyFile (Linux/Windows/macOS)
</div>
</button>
<button aria-controls="_amllax6f4" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_q1gdrcfkg" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
System SSL Certificate Store(Windows/macOS)
</div>
</button>
</div>
<div class="leafygreen-ui-ov1ktg">
<div class="leafygreen-ui-1sg2lsz">
</div>
</div>
</div>
<div class="lg-ui-tab-panels-0000" data-lgid="lg-tabs-tab_panels">
<div>
<div aria-labelledby="_1sg0u456o" class="" id="_f01e63p4t" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:30%"/>
<col style="width:70%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Setting
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Notes
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-net.tls.mode">
<code class="leafygreen-ui-1l06pbn">
net.tls.mode
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Set to
<code class="leafygreen-ui-1l06pbn">
requireTLS
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
This setting restricts each server to use only TLS/SSL
encrypted connections. You can also specify either the
value
<code class="leafygreen-ui-1l06pbn">
allowTLS
</code>
or
<code class="leafygreen-ui-1l06pbn">
preferTLS
</code>
to set up the use
of mixed TLS/SSL modes on a port. See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-net.tls.mode">
<code class="leafygreen-ui-1l06pbn">
net.tls.mode
</code>
</a>
for details.
</p>
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-net.tls.certificateKeyFile">
<code class="leafygreen-ui-1l06pbn">
net.tls.certificateKeyFile
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Set to the path of the file that contains the TLS/SSL
certificate and key.
</p>
<p class="leafygreen-ui-1kp3ins">
The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
/
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instance presents this file to its clients to establish
the instance's identity.
</p>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<p class="leafygreen-ui-1kp3ins">
For example, consider the following
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#std-label-conf-file">
configuration file
</a>
for a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
instance:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"net:\n tls:\n mode: requireTLS\n certificateKeyFile: /etc/ssl/mongodb.pem\nsystemLog:\n destination: file\n path: \"/var/log/mongodb/mongod.log\"\n logAppend: true\nstorage:\n dbPath: \"/var/lib/mongodb\"\nprocessManagement:\n fork: true\nnet:\n bindIp: localhost,mongodb0.example.net\n port: 27017","programmingLanguage":"YAML"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light yaml leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">net:</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">tls:</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">mode:</span> <span class="lg-highlight-string">requireTLS</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">certificateKeyFile:</span> <span class="lg-highlight-string">/etc/ssl/mongodb.pem</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">systemLog:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">destination:</span> <span class="lg-highlight-string">file</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">path:</span> <span class="lg-highlight-string">"/var/log/mongodb/mongod.log"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">logAppend:</span> <span class="lg-highlight-literal">true</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">storage:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">dbPath:</span> <span class="lg-highlight-string">"/var/lib/mongodb"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">processManagement:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">fork:</span> <span class="lg-highlight-literal">true</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">net:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">bindIp:</span> <span class="lg-highlight-string">localhost,mongodb0.example.net</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">port:</span> <span class="lg-highlight-number">27017</span></td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<div>
<div aria-labelledby="_q6dg5oe19" class="leafygreen-ui-38lglc" id="_grpb6h6sp" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
You can use system SSL certificate stores for Windows and macOS. To
use the system SSL certificate store, specify
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-net.tls.certificateSelector">
<code class="leafygreen-ui-1l06pbn">
net.tls.certificateSelector
</code>
</a>
instead of specifying the
certificate key file.
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:30%"/>
<col style="width:70%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Setting
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Notes
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-net.tls.mode">
<code class="leafygreen-ui-1l06pbn">
net.tls.mode
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Set to
<code class="leafygreen-ui-1l06pbn">
requireTLS
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
This setting restricts each server to use only TLS/SSL
encrypted connections. You can also specify either the
value
<code class="leafygreen-ui-1l06pbn">
allowTLS
</code>
or
<code class="leafygreen-ui-1l06pbn">
preferTLS
</code>
to set up the use
of mixed TLS/SSL modes on a port. See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-net.tls.mode">
<code class="leafygreen-ui-1l06pbn">
net.tls.mode
</code>
</a>
for details.
</p>
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-net.tls.certificateSelector">
<code class="leafygreen-ui-1l06pbn">
net.tls.certificateSelector
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Set to the property (either
<code class="leafygreen-ui-1l06pbn">
subject
</code>
or
<code class="leafygreen-ui-1l06pbn">
thumbprint
</code>
) and value.
</p>
<p class="leafygreen-ui-1kp3ins">
This setting is used to select the certificate. See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-net.tls.certificateSelector">
<code class="leafygreen-ui-1l06pbn">
net.tls.certificateSelector
</code>
</a>
for details.
</p>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<p class="leafygreen-ui-1kp3ins">
For example, consider the following
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#std-label-conf-file">
configuration file
</a>
for a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
instance:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"net:\n tls:\n mode: requireTLS\n certificateSelector: subject=\"<certificatecommonname>\"\nsystemLog:\n destination: file\n path: \"/var/log/mongodb/mongod.log\"\n logAppend: true\nstorage:\n dbPath: \"/var/lib/mongodb\"\nprocessManagement:\n fork: true\nnet:\n bindIp: localhost,mongodb0.example.net\n port: 27017","programmingLanguage":"YAML"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light yaml leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">net:</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">tls:</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">mode:</span> <span class="lg-highlight-string">requireTLS</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">certificateSelector:</span> <span class="lg-highlight-string">subject="<CertificateCommonName>"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">systemLog:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">destination:</span> <span class="lg-highlight-string">file</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">path:</span> <span class="lg-highlight-string">"/var/log/mongodb/mongod.log"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">logAppend:</span> <span class="lg-highlight-literal">true</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">storage:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">dbPath:</span> <span class="lg-highlight-string">"/var/lib/mongodb"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">processManagement:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">fork:</span> <span class="lg-highlight-literal">true</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">net:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">bindIp:</span> <span class="lg-highlight-string">localhost,mongodb0.example.net</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">port:</span> <span class="lg-highlight-number">27017</span></td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
instance that uses the above configuration can
only accept TLS/SSL connections:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"mongod --config <path>","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">mongod --config <path<!-- -->/to/configuration/file<!-- -->></td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/configure-ssl-clients/#std-label-tls-client-connection-only">
Connect to MongoDB Instances Using Encryption
</a>
for more information on connecting
with TLS/SSL.
</p>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
You can also configure
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
using command-line options instead of the
configuration file:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
, see:
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#std-option-mongod.--tlsMode">
<code class="leafygreen-ui-1l06pbn">
--tlsMode
</code>
</a>
;
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#std-option-mongod.--tlsCertificateKeyFile">
<code class="leafygreen-ui-1l06pbn">
--tlsCertificateKeyFile
</code>
</a>
; and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#std-option-mongod.--tlsCertificateSelector">
<code class="leafygreen-ui-1l06pbn">
--tlsCertificateSelector
</code>
.
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
, see:
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#std-option-mongos.--tlsMode">
<code class="leafygreen-ui-1l06pbn">
--tlsMode
</code>
</a>
;
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#std-option-mongos.--tlsCertificateKeyFile">
<code class="leafygreen-ui-1l06pbn">
--tlsCertificateKeyFile
</code>
</a>
; and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#std-option-mongos.--tlsCertificateSelector">
<code class="leafygreen-ui-1l06pbn">
--tlsCertificateSelector
</code>
.
</a>
</p>
</li>
</ul>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-ssl-mongod-ca-signed-ssl-cert-key">
</span>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Set Up
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
and
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
with Client Certificate Validation
<a class="headerlink leafygreen-ui-1kepx47" href="#set-up-mongod-and-mongos-with-client-certificate-validation" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="set-up-mongod-and-mongos-with-client-certificate-validation">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The following section configures
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
/
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
to use TLS/SSL connections
and perform client certificate validation. With these TLS/SSL settings:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
/
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
presents its certificate
key file to the client for verification.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
/
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
requires a certificate
key file from the client to verify the client's identity.
</p>
</li>
</ul>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
The procedure uses the
<code class="leafygreen-ui-1l06pbn">
net.tls
</code>
settings For procedures that use the
<code class="leafygreen-ui-1l06pbn">
net.ssl
</code>
settings, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-configure-ssl" target="_self">
<span>
Procedures (Using
<code class="leafygreen-ui-1l06pbn">
net.ssl
</code>
Settings)
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To use TLS/SSL connections and perform client certificate validation,
include the following
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#std-label-net-tls-conf-options">
TLS/SSL settings
</a>
in
your
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
/
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instance's
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#std-label-conf-file">
configuration file
<!-- -->
:
</a>
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
You can use system SSL certificate stores for Windows and macOS. To use the
system SSL certificate store, specify
<code class="leafygreen-ui-1l06pbn">
net.ssl.certificateSelector
</code>
instead
of specifying the certificate key file.
</p>
</div>
</div>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:30%"/>
<col style="width:70%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Setting
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Notes
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-net.tls.mode">
<code class="leafygreen-ui-1l06pbn">
net.tls.mode
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Set to
<code class="leafygreen-ui-1l06pbn">
requireTLS
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
This setting restricts each server to use only TLS/SSL
encrypted connections. You can also specify either the
value
<code class="leafygreen-ui-1l06pbn">
allowTLS
</code>
or
<code class="leafygreen-ui-1l06pbn">
preferTLS
</code>
to set up the use
of mixed TLS/SSL modes on a port. See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-net.tls.mode">
<code class="leafygreen-ui-1l06pbn">
net.tls.mode
</code>
</a>
for details.
</p>
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-net.tls.certificateKeyFile">
<code class="leafygreen-ui-1l06pbn">
net.tls.certificateKeyFile
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Set to the path of the file that contains the TLS/SSL
certificate and key.
</p>
<p class="leafygreen-ui-1kp3ins">
The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
/
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instance presents this file to its clients to establish
the instance's identity.
</p>
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-net.tls.CAFile">
<code class="leafygreen-ui-1l06pbn">
net.tls.CAFile
</code>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Set to the path of the file that contains the certificate chain
for verifying client certificates.
</p>
<p class="leafygreen-ui-1kp3ins">
The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
/
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instance use
this file to verify certificates presented by its clients. The
certificate chain includes the certificate of the root
Certificate Authority.
</p>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
When starting a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
instance with
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-configure-mongod-mongos-for-tls-ssl" target="_self">
<span>
TLS/SSL enabled
</span>
</a>
, you must
specify a value for the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#std-option-mongod.--tlsCAFile">
<code class="leafygreen-ui-1l06pbn">
--tlsCAFile
</code>
</a>
flag, the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-net.tls.CAFile">
<code class="leafygreen-ui-1l06pbn">
net.tls.CAFile
</code>
</a>
configuration option, or the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/parameters/#mongodb-parameter-param.tlsUseSystemCA">
<code class="leafygreen-ui-1l06pbn">
tlsUseSystemCA
</code>
</a>
parameter.
</p>
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
--tlsCAFile
</code>
,
<code class="leafygreen-ui-1l06pbn">
tls.CAFile
</code>
, and
<code class="leafygreen-ui-1l06pbn">
tlsUseSystemCA
</code>
are all mutually
exclusive.
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
For example, consider the following
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#std-label-conf-file">
configuration file
</a>
for a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
instance:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"net:\n tls:\n mode: requireTLS\n certificateKeyFile: /etc/ssl/mongodb.pem\n CAFile: /etc/ssl/caToValidateClientCertificates.pem\nsystemLog:\n destination: file\n path: \"/var/log/mongodb/mongod.log\"\n logAppend: true\nstorage:\n dbPath: \"/var/lib/mongodb\"\nprocessManagement:\n fork: true\nnet:\n bindIp: localhost,mongodb0.example.net\n port: 27017","programmingLanguage":"YAML"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light yaml leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">net:</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">tls:</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">mode:</span> <span class="lg-highlight-string">requireTLS</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">certificateKeyFile:</span> <span class="lg-highlight-string">/etc/ssl/mongodb.pem</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">CAFile:</span> <span class="lg-highlight-string">/etc/ssl/caToValidateClientCertificates.pem</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">systemLog:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">destination:</span> <span class="lg-highlight-string">file</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">path:</span> <span class="lg-highlight-string">"/var/log/mongodb/mongod.log"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">logAppend:</span> <span class="lg-highlight-literal">true</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">storage:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">dbPath:</span> <span class="lg-highlight-string">"/var/lib/mongodb"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">processManagement:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">fork:</span> <span class="lg-highlight-literal">true</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">net:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">bindIp:</span> <span class="lg-highlight-string">localhost,mongodb0.example.net</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">port:</span> <span class="lg-highlight-number">27017</span></td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
instance that uses the above configuration can
only accept TLS/SSL connections and requires a valid certificate from
its clients:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"mongod --config <path>","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">mongod --config <path<!-- -->/to/configuration/file<!-- -->></td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
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</svg>
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</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Clients must specify TLS/SSL connections and present their certificate
key file to the instance. See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/configure-ssl-clients/#std-label-mongo-connect-require-client-certificates-tls">
Connect to MongoDB Instances that Require Client Certificates
</a>
for more
information on connecting with TLS/SSL.
</p>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
You can also configure
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
using command-line options instead of the
configuration file:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#std-option-mongod.--tlsMode">
<code class="leafygreen-ui-1l06pbn">
--tlsMode
</code>
</a>
,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#std-option-mongod.--tlsCertificateKeyFile">
<code class="leafygreen-ui-1l06pbn">
--tlsCertificateKeyFile
</code>
</a>
, and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#std-option-mongod.--tlsCAFile">
<code class="leafygreen-ui-1l06pbn">
--tlsCAFile
</code>
.
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#std-option-mongos.--tlsMode">
<code class="leafygreen-ui-1l06pbn">
--tlsMode
</code>
</a>
,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#std-option-mongos.--tlsCertificateKeyFile">
<code class="leafygreen-ui-1l06pbn">
--tlsCertificateKeyFile
</code>
</a>
,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#std-option-mongos.--tlsCAFile">
<code class="leafygreen-ui-1l06pbn">
--tlsCAFile
</code>
.
</a>
</p>
</li>
</ul>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-block-revoked-certs-tls">
</span>
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Block Revoked Certificates for Clients
<a class="headerlink leafygreen-ui-1kepx47" href="#block-revoked-certificates-for-clients" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="block-revoked-certificates-for-clients">
</div>
</a>
</h4>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
The procedure uses the
<code class="leafygreen-ui-1l06pbn">
net.tls
</code>
settings. For procedures that use the
<code class="leafygreen-ui-1l06pbn">
net.ssl
</code>
settings, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-configure-ssl" target="_self">
<span>
Procedures (Using
<code class="leafygreen-ui-1l06pbn">
net.ssl
</code>
Settings)
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To prevent clients with revoked certificates from connecting to the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instance, you can use a
Certificate Revocation List (CRL).
</p>
<p class="leafygreen-ui-1kp3ins">
To specify a
<span class="leafygreen-ui-vm4wms" tabindex="0">
CRL
</span>
file, include
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-net.tls.CRLFile">
<code class="leafygreen-ui-1l06pbn">
net.tls.CRLFile
</code>
</a>
set to a file that contains revoked
certificates.
</p>
<p class="leafygreen-ui-1kp3ins">
For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"net:\n tls:\n mode: requireTLS\n certificateKeyFile: /etc/ssl/mongodb.pem\n CAFile: /etc/ssl/caToValidateClientCertificates.pem\n CRLFile: /etc/ssl/revokedCertificates.pem","programmingLanguage":"YAML"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light yaml leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">net:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">tls:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">mode:</span> <span class="lg-highlight-string">requireTLS</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">certificateKeyFile:</span> <span class="lg-highlight-string">/etc/ssl/mongodb.pem</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">CAFile:</span> <span class="lg-highlight-string">/etc/ssl/caToValidateClientCertificates.pem</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">CRLFile:</span> <span class="lg-highlight-string">/etc/ssl/revokedCertificates.pem</span></td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
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</div>
<p class="leafygreen-ui-1kp3ins">
Clients that present certificates that are listed in the
<code class="file docutils literal">
<span class="pre">
/etc/ssl/revokedCertificates.pem
</span>
</code>
file are not able to connect.
</p>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
You can also configure the revoked certificate list using the
command-line option.
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#std-option-mongod.--tlsCRLFile">
<code class="leafygreen-ui-1l06pbn">
--tlsCRLFile
</code>
.
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#std-option-mongos.--tlsCRLFile">
<code class="leafygreen-ui-1l06pbn">
--tlsCRLFile
</code>
.
</a>
</p>
</li>
</ul>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-ssl-mongod-weak-certification">
</span>
</section>
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Validate Only if a Client Presents a Certificate
<a class="headerlink leafygreen-ui-1kepx47" href="#validate-only-if-a-client-presents-a-certificate" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="validate-only-if-a-client-presents-a-certificate">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
In most cases, it is important to ensure that clients present valid
certificates. However, if you have clients that cannot present a client
certificate or are transitioning to using a certificate, you may only
want to validate certificates from clients that present a certificate.
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
The procedure uses the
<code class="leafygreen-ui-1l06pbn">
net.tls
</code>
settings. For procedures using the
<code class="leafygreen-ui-1l06pbn">
net.ssl
</code>
settings, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-configure-ssl" target="_self">
<span>
Procedures (Using
<code class="leafygreen-ui-1l06pbn">
net.ssl
</code>
Settings)
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To bypass client certificate validation for clients that do not present
a certificate, include
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-net.tls.allowConnectionsWithoutCertificates">
<code class="leafygreen-ui-1l06pbn">
net.tls.allowConnectionsWithoutCertificates
</code>
</a>
set to
<code class="leafygreen-ui-1l06pbn">
true
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"net:\n tls:\n mode: requireTLS\n certificateKeyFile: /etc/ssl/mongodb.pem\n CAFile: /etc/ssl/caToValidateClientCertificates.pem\n allowConnectionsWithoutCertificates: true","programmingLanguage":"YAML"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light yaml leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">net:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">tls:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">mode:</span> <span class="lg-highlight-string">requireTLS</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">certificateKeyFile:</span> <span class="lg-highlight-string">/etc/ssl/mongodb.pem</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">CAFile:</span> <span class="lg-highlight-string">/etc/ssl/caToValidateClientCertificates.pem</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">allowConnectionsWithoutCertificates:</span> <span class="lg-highlight-literal">true</span></td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</button>
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</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
/
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
running with these
settings allows connection from:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Clients that do not present a certificate.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Clients that present a valid certificate.
</p>
</li>
</ul>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
If the client presents a certificate, the certificate must be a
valid certificate.
</p>
<p class="leafygreen-ui-1kp3ins">
All connections, including those that have not presented
certificates, are encrypted using TLS/SSL.
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/configure-ssl-clients/#std-label-ssl-clients">
TLS/SSL Configuration for Clients
</a>
for more information on TLS/SSL connections for
clients.
</p>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
You can also configure using the command-line options:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#std-option-mongod.--tlsAllowConnectionsWithoutCertificates">
<code class="leafygreen-ui-1l06pbn">
--tlsAllowConnectionsWithoutCertificates
</code>
.
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#std-option-mongos.--tlsAllowConnectionsWithoutCertificates">
<code class="leafygreen-ui-1l06pbn">
--tlsAllowConnectionsWithoutCertificates
</code>
.
</a>
</p>
</li>
</ul>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-ssl-disallow-protocols">
</span>
</section>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Disallow Protocols
<a class="headerlink leafygreen-ui-1kepx47" href="#disallow-protocols" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="disallow-protocols">
</div>
</a>
</h3>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
The procedure uses the
<code class="leafygreen-ui-1l06pbn">
net.tls
</code>
settings. For procedures using the
<code class="leafygreen-ui-1l06pbn">
net.ssl
</code>
settings, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-configure-ssl" target="_self">
<span>
Procedures (Using
<code class="leafygreen-ui-1l06pbn">
net.ssl
</code>
Settings)
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To prevent MongoDB servers from accepting incoming connections that use
specific protocols, include
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-net.tls.disabledProtocols">
<code class="leafygreen-ui-1l06pbn">
net.tls.disabledProtocols
</code>
</a>
set to
the disallowed protocols.
</p>
<p class="leafygreen-ui-1kp3ins">
For example, the following configuration prevents
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
/
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
from accepting incoming
connections that use either
<code class="leafygreen-ui-1l06pbn">
TLS1_0
</code>
or
<code class="leafygreen-ui-1l06pbn">
TLS1_1
</code>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"net:\n tls:\n mode: requireTLS\n certificateKeyFile: /etc/ssl/mongodb.pem\n CAFile: /etc/ssl/caToValidateClientCertificates.pem\n disabledProtocols: TLS1_0,TLS1_1","programmingLanguage":"YAML"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light yaml leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">net:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">tls:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">mode:</span> <span class="lg-highlight-string">requireTLS</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">certificateKeyFile:</span> <span class="lg-highlight-string">/etc/ssl/mongodb.pem</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">CAFile:</span> <span class="lg-highlight-string">/etc/ssl/caToValidateClientCertificates.pem</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">disabledProtocols:</span> <span class="lg-highlight-string">TLS1_0,TLS1_1</span></td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
You can also configure using the command-line options:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#std-option-mongod.--tlsDisabledProtocols">
<code class="leafygreen-ui-1l06pbn">
--tlsDisabledProtocols
</code>
.
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#std-option-mongos.--tlsDisabledProtocols">
<code class="leafygreen-ui-1l06pbn">
--tlsDisabledProtocols
</code>
.
</a>
</p>
</li>
</ul>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-ssl-certificate-password">
</span>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
TLS/SSL Certificate Passphrase
<a class="headerlink leafygreen-ui-1kepx47" href="#tls-ssl-certificate-passphrase" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="tls-ssl-certificate-passphrase">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
If the certificate key files for
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
/
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
are encrypted, include
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-net.tls.certificateKeyFilePassword">
<code class="leafygreen-ui-1l06pbn">
net.tls.certificateKeyFilePassword
</code>
</a>
set to the passphrase.
</p>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
To avoid specifying the passphrase in cleartext, you can use an
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/expansion-directives/#std-label-externally-sourced-values">
expansion value
</a>
in the configuration file.
</p>
</div>
</div>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
You can also configure using the command-line options:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#std-option-mongod.--tlsCertificateKeyFilePassword">
<code class="leafygreen-ui-1l06pbn">
--tlsCertificateKeyFilePassword
</code>
.
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#std-option-mongos.--tlsCertificateKeyFilePassword">
<code class="leafygreen-ui-1l06pbn">
--tlsCertificateKeyFilePassword
</code>
.
</a>
</p>
</li>
</ul>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-certificate-rotation">
</span>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Online Certificate Rotation
<a class="headerlink leafygreen-ui-1kepx47" href="#online-certificate-rotation" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="online-certificate-rotation">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 5.0, you can rotate the following certificate key
files on-demand:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-net.tls.certificateKeyFile">
<code class="leafygreen-ui-1l06pbn">
TLS Certificates
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-net.tls.CRLFile">
<code class="leafygreen-ui-1l06pbn">
CRL (Certificate Revocation List) files
</code>
</a>
(on Linux and Windows platforms)
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-net.tls.CAFile">
<code class="leafygreen-ui-1l06pbn">
CA (Certificate Authority) files
</code>
</a>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
To rotate one or more of these certificates:
</p>
<ol class="leafygreen-ui-rioki0" type="1">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Replace the certificate or certificates you wish to rotate on the
filesystem, noting the following constraints:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Each new certificate must have the
<em>
same filename
</em>
and
<em>
same filepath
</em>
as the certificate it is replacing.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
If rotating an encrypted
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-net.tls.certificateKeyFile">
<code class="leafygreen-ui-1l06pbn">
TLS Certificate
</code>
</a>
, its password must be the same as
the password for the old certificate (as specified to the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-net.tls.certificateKeyFilePassword">
<code class="leafygreen-ui-1l06pbn">
certificateKeyFilePassword
</code>
</a>
configuration file
setting). Certificate rotation does not support the interactive
password prompt.
</p>
</li>
</ul>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Connect
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
to the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instance that you wish to perform certificate
rotation on.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Run the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/rotateCertificates/#mongodb-dbcommand-dbcmd.rotateCertificates">
<code class="leafygreen-ui-1l06pbn">
rotateCertificates
</code>
</a>
command or the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.rotateCertificates/#mongodb-method-db.rotateCertificates">
<code class="leafygreen-ui-1l06pbn">
db.rotateCertificates()
</code>
</a>
shell method to rotate the
certificates used by the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instance.
</p>
</li>
</ol>
<p class="leafygreen-ui-1kp3ins">
When certificate rotation takes place:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Existing connections to the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instance are not terminated, and will continue
to use the old certificates.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Any new connections will use the new certificates.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
Incorrect, expired, revoked, or missing certificate files will cause the
certificate rotation to fail, but will not invalidate the existing
TLS configuration or terminate the running
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
process.
</p>
<p class="leafygreen-ui-1kp3ins">
Previous to MongoDB 5.0, certificate rotation required downtime, and was
typically performed during maintenance windows.
</p>
<p class="leafygreen-ui-1kp3ins">
See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/rotateCertificates/#mongodb-dbcommand-dbcmd.rotateCertificates">
<code class="leafygreen-ui-1l06pbn">
rotateCertificates
</code>
</a>
or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.rotateCertificates/#mongodb-method-db.rotateCertificates">
<code class="leafygreen-ui-1l06pbn">
db.rotateCertificates()
</code>
</a>
for additional considerations and full usage instructions.
</p>
<span class="leafygreen-ui-1qnjd6d" id="std-label-ssl-run-fips-mode">
</span>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Run in FIPS Mode
<a class="headerlink leafygreen-ui-1kepx47" href="#run-in-fips-mode" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="run-in-fips-mode">
</div>
</a>
</h3>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
FIPS-compatible TLS/SSL is
available only in
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://www.mongodb.com/products/mongodb-enterprise-advanced?tck=docs_server" target="_self">
<span>
MongoDB Enterprise
</span>
</a>
. See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/configure-fips/">
Configure MongoDB for FIPS
</a>
for more information.
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/configure-fips/">
Configure MongoDB for FIPS
</a>
for more details.
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Next Steps
<a class="headerlink leafygreen-ui-1kepx47" href="#next-steps" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="next-steps">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
To configure TLS/SSL support for clients, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/configure-ssl-clients/">
TLS/SSL Configuration for Clients
<!-- -->
.
</a>
</p>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/configure-x509-client-authentication/">
Use x.509 Certificates to Authenticate Clients on Self-Managed Deployments
</a>
</p>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-configure-ssl">
</span>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Procedures (Using
<code class="leafygreen-ui-1l06pbn">
net.ssl
</code>
Settings)
<a class="headerlink leafygreen-ui-1kepx47" href="#procedures--using-net.ssl-settings-" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="procedures--using-net.ssl-settings-">
</div>
</a>
</h2>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
MongoDB provides
<code class="leafygreen-ui-1l06pbn">
net.tls
</code>
settings (and
<code class="leafygreen-ui-1l06pbn">
--tls
</code>
command-line options) that
correspond to the
<code class="leafygreen-ui-1l06pbn">
net.ssl
</code>
settings (and
<code class="leafygreen-ui-1l06pbn">
--ssl
</code>
command-line options).
The new
<code class="leafygreen-ui-1l06pbn">
tls
</code>
settings provide
<strong>
identical
</strong>
functionality as the
<code class="leafygreen-ui-1l06pbn">
ssl
</code>
settings since MongoDB has always supported TLS 1.0 and later.
</p>
<p class="leafygreen-ui-1kp3ins">
The procedures in this section use the
<code class="leafygreen-ui-1l06pbn">
net.ssl
</code>
settings. For
procedures using the
<code class="leafygreen-ui-1l06pbn">
net.tls
</code>
aliases, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-configure-tls" target="_self">
<span>
Procedures (Using
<code class="leafygreen-ui-1l06pbn">
net.tls
</code>
Settings)
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Set Up
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
and
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
with TLS/SSL Certificate and Key
<a class="headerlink leafygreen-ui-1kepx47" href="#set-up-mongod-and-mongos-with-tls-ssl-certificate-and-key-1" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="set-up-mongod-and-mongos-with-tls-ssl-certificate-and-key-1">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The following section configures
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
/
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
to use TLS/SSL connections.
With these TLS/SSL settings,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
/
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
presents its certificate
key file to the client. However, the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
/
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
does not require a
certificate key file from the client to verify the client's identity.
To require client's certificate key file, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-client-cert-validation-ssl" target="_self">
<span>
Set Up
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
and
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
with Client Certificate Validation
</span>
</a>
instead.
</p>
<p class="leafygreen-ui-1kp3ins">
To use TLS/SSL connections, include the following TLS/SSL settings in
your
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
/
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instance's
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#std-label-conf-file">
configuration file
<!-- -->
:
</a>
</p>
<div aria-hidden="true">
</div>
<div class="leafygreen-ui-1b75luy" data-lgid="lg-tabs">
<div class="leafygreen-ui-jp7pox" id="tabs-22">
<div aria-label="Tabs to describe usage of certstore/pem" aria-orientation="horizontal" class="leafygreen-ui-m8p1vb lg-ui-tab-list-0000" data-lgid="lg-tabs-tab_list" role="tablist">
<button aria-controls="_6um0o0322" aria-selected="true" class="leafygreen-ui-1l773z1" data-text="" id="_fwauu690d" name="" role="tab" tabindex="0">
<div class="leafygreen-ui-1nxuzmg">
PEMKeyFile (Linux/Windows/macOS)
</div>
</button>
<button aria-controls="_p0qqukvfp" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_r807npcd6" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
System SSL Certificate Store(Windows/macOS)
</div>
</button>
</div>
<div class="leafygreen-ui-ov1ktg">
<div class="leafygreen-ui-1sg2lsz">
</div>
</div>
</div>
<div class="lg-ui-tab-panels-0000" data-lgid="lg-tabs-tab_panels">
<div>
<div aria-labelledby="_aokdaeqza" class="" id="_d3qxr4lsy" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:30%"/>
<col style="width:70%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Setting
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Notes
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
net.ssl.mode
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Set to
<code class="leafygreen-ui-1l06pbn">
requireSSL
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
This setting restricts each server to use only TLS/SSL encrypted
connections. You can also specify
<code class="leafygreen-ui-1l06pbn">
allowSSL
</code>
or
<code class="leafygreen-ui-1l06pbn">
preferSSL
</code>
to use mixed TLS/SSL modes. See
<code class="leafygreen-ui-1l06pbn">
net.ssl.mode
</code>
for details.
</p>
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
net.ssl.PEMKeyFile
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Set to the
<code class="file docutils literal">
<span class="pre">
.pem
</span>
</code>
file that contains the TLS/SSL
certificate and key.
</p>
<p class="leafygreen-ui-1kp3ins">
The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
/
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instance
presents this file to its clients to establish the instance's
identity.
</p>
<p class="leafygreen-ui-1kp3ins">
If the key is encrypted, specify the passphrase
(
<code class="leafygreen-ui-1l06pbn">
net.ssl.PEMKeyPassword
</code>
).
</p>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<p class="leafygreen-ui-1kp3ins">
For example, consider the following
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#std-label-conf-file">
configuration file
</a>
for a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
instance:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"net:\n ssl:\n mode: requireSSL\n PEMKeyFile: /etc/ssl/mongodb.pem\nsystemLog:\n destination: file\n path: \"/var/log/mongodb/mongod.log\"\n logAppend: true\nstorage:\n dbPath: \"/var/lib/mongodb\"\nprocessManagement:\n fork: true\nnet:\n bindIp: localhost,mongodb0.example.net\n port: 27017","programmingLanguage":"YAML"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light yaml leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">net:</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">ssl:</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">mode:</span> <span class="lg-highlight-string">requireSSL</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">PEMKeyFile:</span> <span class="lg-highlight-string">/etc/ssl/mongodb.pem</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">systemLog:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">destination:</span> <span class="lg-highlight-string">file</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">path:</span> <span class="lg-highlight-string">"/var/log/mongodb/mongod.log"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">logAppend:</span> <span class="lg-highlight-literal">true</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">storage:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">dbPath:</span> <span class="lg-highlight-string">"/var/lib/mongodb"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">processManagement:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">fork:</span> <span class="lg-highlight-literal">true</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">net:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">bindIp:</span> <span class="lg-highlight-string">localhost,mongodb0.example.net</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">port:</span> <span class="lg-highlight-number">27017</span></td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<div>
<div aria-labelledby="_jl1vpbty4" class="leafygreen-ui-38lglc" id="_npltdpm7u" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
You can use system SSL certificate stores for Windows and macOS. To
use the system SSL certificate store, specify
<code class="leafygreen-ui-1l06pbn">
net.ssl.certificateSelector
</code>
instead of specifying the
certificate key file.
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:30%"/>
<col style="width:70%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Setting
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Notes
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
net.ssl.mode
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Set to
<code class="leafygreen-ui-1l06pbn">
requireSSL
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
This setting restricts each server to use only TLS/SSL encrypted
connections. You can also specify
<code class="leafygreen-ui-1l06pbn">
allowSSL
</code>
or
<code class="leafygreen-ui-1l06pbn">
preferSSL
</code>
to use mixed TLS/SSL modes. See
<code class="leafygreen-ui-1l06pbn">
net.ssl.mode
</code>
for details.
</p>
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
net.ssl.certificateSelector
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Set to the property (either
<code class="leafygreen-ui-1l06pbn">
subject
</code>
or
<code class="leafygreen-ui-1l06pbn">
thumbprint
</code>
) and value.
</p>
<p class="leafygreen-ui-1kp3ins">
This setting is used to select the certificate. See
<code class="leafygreen-ui-1l06pbn">
net.ssl.certificateSelector
</code>
for details.
</p>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<p class="leafygreen-ui-1kp3ins">
For example, consider the following
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#std-label-conf-file">
configuration file
</a>
for a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
instance:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"net:\n ssl:\n mode: requireSSL\n certificateSelector: subject=\"<certificatecommonname>\"\nsystemLog:\n destination: file\n path: \"/var/log/mongodb/mongod.log\"\n logAppend: true\nstorage:\n dbPath: \"/var/lib/mongodb\"\nprocessManagement:\n fork: true\nnet:\n bindIp: localhost,mongodb0.example.net\n port: 27017","programmingLanguage":"YAML"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light yaml leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">net:</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">ssl:</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">mode:</span> <span class="lg-highlight-string">requireSSL</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">certificateSelector:</span> <span class="lg-highlight-string">subject="<CertificateCommonName>"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">systemLog:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">destination:</span> <span class="lg-highlight-string">file</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">path:</span> <span class="lg-highlight-string">"/var/log/mongodb/mongod.log"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">logAppend:</span> <span class="lg-highlight-literal">true</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">storage:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">dbPath:</span> <span class="lg-highlight-string">"/var/lib/mongodb"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">processManagement:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">fork:</span> <span class="lg-highlight-literal">true</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">net:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">bindIp:</span> <span class="lg-highlight-string">localhost,mongodb0.example.net</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">port:</span> <span class="lg-highlight-number">27017</span></td></tr></tbody></table></code></pre>
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</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
instance that uses the above configuration can
only accept TLS/SSL connections:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"mongod --config <path>","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">mongod --config <path<!-- -->/to/configuration/file<!-- -->></td></tr></tbody></table></code></pre>
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<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
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</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/configure-ssl-clients/#std-label-tls-client-connection-only">
Connect to MongoDB Instances Using Encryption
</a>
for more information on connecting
with TLS/SSL.
</p>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
You can also configure
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
using command-line options instead of the configuration file:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
, see
<code class="leafygreen-ui-1l06pbn">
--sslMode
</code>
,
<code class="leafygreen-ui-1l06pbn">
--sslPEMKeyFile
</code>
,
and
<code class="leafygreen-ui-1l06pbn">
--sslCertificateSelector
</code>
.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
, see:
<code class="leafygreen-ui-1l06pbn">
--sslMode
</code>
,
<code class="leafygreen-ui-1l06pbn">
--sslPEMKeyFile
</code>
and
<code class="leafygreen-ui-1l06pbn">
--sslCertificateSelector
</code>
.
</p>
</li>
</ul>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-client-cert-validation-ssl">
</span>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Set Up
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
and
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
with Client Certificate Validation
<a class="headerlink leafygreen-ui-1kepx47" href="#set-up-mongod-and-mongos-with-client-certificate-validation-1" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
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<div class="css-1btu0w3 evvkmar0" id="set-up-mongod-and-mongos-with-client-certificate-validation-1">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The following section configures
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
/
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
to use TLS/SSL connections
and perform client certificate validation. With these TLS/SSL settings:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
/
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
presents its certificate
key file to the client for verification.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
/
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
requires a certificate
key file from the client to verify the client's identity.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
To use TLS/SSL connections, include the following TLS/SSL settings in
your
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
/
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instance's
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#std-label-conf-file">
configuration file
<!-- -->
:
</a>
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
You can use system SSL certificate stores for Windows and macOS. To use the
system SSL certificate store, specify
<code class="leafygreen-ui-1l06pbn">
net.ssl.certificateSelector
</code>
instead
of specifying the certificate key file.
</p>
</div>
</div>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:30%"/>
<col style="width:70%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Setting
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Notes
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
net.ssl.mode
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Set to
<code class="leafygreen-ui-1l06pbn">
requireSSL
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
This setting restricts each server to use only TLS/SSL encrypted
connections. You can also specify
<code class="leafygreen-ui-1l06pbn">
allowSSL
</code>
or
<code class="leafygreen-ui-1l06pbn">
preferSSL
</code>
to use mixed TLS/SSL modes. See
<code class="leafygreen-ui-1l06pbn">
net.ssl.mode
</code>
for details.
</p>
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
net.ssl.PEMKeyFile
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Set to the
<code class="file docutils literal">
<span class="pre">
.pem
</span>
</code>
file that contains the TLS/SSL
certificate and key.
</p>
<p class="leafygreen-ui-1kp3ins">
The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
/
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instance
presents this file to its clients to establish the instance's
identity.
</p>
<p class="leafygreen-ui-1kp3ins">
If the key is encrypted, specify the passphrase
(
<code class="leafygreen-ui-1l06pbn">
net.ssl.PEMKeyPassword
</code>
).
</p>
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
net.ssl.CAFile
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Set to the path of the file that contains the
certificate chain for verifying client certificates.
</p>
<p class="leafygreen-ui-1kp3ins">
The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
/
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instance use this file to verify certificates presented
by its clients. The certificate chain includes the
certificate of the root Certificate Authority.
</p>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<p class="leafygreen-ui-1kp3ins">
For example, consider the following
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#std-label-conf-file">
configuration file
</a>
for a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
instance:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"net:\n ssl:\n mode: requireSSL\n PEMKeyFile: /etc/ssl/mongodb.pem\n CAFile: /etc/ssl/caToValidateClientCertificates.pem\nsystemLog:\n destination: file\n path: \"/var/log/mongodb/mongod.log\"\n logAppend: true\nstorage:\n dbPath: \"/var/lib/mongodb\"\nprocessManagement:\n fork: true\nnet:\n bindIp: localhost,mongodb0.example.net\n port: 27017","programmingLanguage":"YAML"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light yaml leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">net:</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">ssl:</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">mode:</span> <span class="lg-highlight-string">requireSSL</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">PEMKeyFile:</span> <span class="lg-highlight-string">/etc/ssl/mongodb.pem</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">CAFile:</span> <span class="lg-highlight-string">/etc/ssl/caToValidateClientCertificates.pem</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">systemLog:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">destination:</span> <span class="lg-highlight-string">file</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">path:</span> <span class="lg-highlight-string">"/var/log/mongodb/mongod.log"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">logAppend:</span> <span class="lg-highlight-literal">true</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">storage:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">dbPath:</span> <span class="lg-highlight-string">"/var/lib/mongodb"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">processManagement:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">fork:</span> <span class="lg-highlight-literal">true</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">net:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">bindIp:</span> <span class="lg-highlight-string">localhost,mongodb0.example.net</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">port:</span> <span class="lg-highlight-number">27017</span></td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
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</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
instance that uses the above configuration can
only accept TLS/SSL connections and requires a valid certificate from
its clients:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"mongod --config <path>","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">mongod --config <path<!-- -->/to/configuration/file<!-- -->></td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Clients must specify TLS/SSL connections and present their certificate
key file to the instance. See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/configure-ssl-clients/#std-label-mongo-connect-require-client-certificates-tls">
Connect to MongoDB Instances that Require Client Certificates
</a>
for more
information on connecting with TLS/SSL.
</p>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
You can also configure
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
using command-line options instead of the
configuration file:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
, see
<code class="leafygreen-ui-1l06pbn">
--sslMode
</code>
,
<code class="leafygreen-ui-1l06pbn">
--sslPEMKeyFile
</code>
, and
<code class="leafygreen-ui-1l06pbn">
--sslCAFile
</code>
.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
, see
<code class="leafygreen-ui-1l06pbn">
--sslMode
</code>
,
<code class="leafygreen-ui-1l06pbn">
--sslPEMKeyFile
</code>
, and
<code class="leafygreen-ui-1l06pbn">
--sslCAFile
</code>
.
</p>
</li>
</ul>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-block-revoked-certs-ssl">
</span>
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Block Revoked Certificates for Clients
<a class="headerlink leafygreen-ui-1kepx47" href="#block-revoked-certificates-for-clients-1" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="block-revoked-certificates-for-clients-1">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
To prevent clients with revoked certificates from connecting to the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instance, you can use a
Certificate Revocation List (CRL).
</p>
<p class="leafygreen-ui-1kp3ins">
To specify a
<span class="leafygreen-ui-vm4wms" tabindex="0">
CRL
</span>
file, include
<code class="leafygreen-ui-1l06pbn">
net.ssl.CRLFile
</code>
set to a file that contains revoked
certificates.
</p>
<p class="leafygreen-ui-1kp3ins">
For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"net:\n ssl:\n mode: requireSSL\n PEMKeyFile: /etc/ssl/mongodb.pem\n CAFile: /etc/ssl/caToValidateClientCertificates.pem\n CRLFile: /etc/ssl/revokedCertificates.pem","programmingLanguage":"YAML"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light yaml leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">net:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">ssl:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">mode:</span> <span class="lg-highlight-string">requireSSL</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">PEMKeyFile:</span> <span class="lg-highlight-string">/etc/ssl/mongodb.pem</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">CAFile:</span> <span class="lg-highlight-string">/etc/ssl/caToValidateClientCertificates.pem</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">CRLFile:</span> <span class="lg-highlight-string">/etc/ssl/revokedCertificates.pem</span></td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Clients that present certificates that are listed in the
<code class="file docutils literal">
<span class="pre">
/etc/ssl/revokedCertificates.pem
</span>
</code>
file are not able to connect.
</p>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
You can also configure the revoked certificate list using the command-line option.
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
, see
<code class="leafygreen-ui-1l06pbn">
--sslCRLFile
</code>
.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
, see
<code class="leafygreen-ui-1l06pbn">
--sslCRLFile
</code>
.
</p>
</li>
</ul>
</div>
</div>
</section>
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Validate Only if a Client Presents a Certificate
<a class="headerlink leafygreen-ui-1kepx47" href="#validate-only-if-a-client-presents-a-certificate-1" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="validate-only-if-a-client-presents-a-certificate-1">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
In most cases, it is important to ensure that clients present valid
certificates. However, if you have clients that cannot present a client
certificate or are transitioning to using a certificate, you may only
want to validate certificates from clients that present a certificate.
</p>
<p class="leafygreen-ui-1kp3ins">
To bypass client certificate validation for clients that do not present
a certificate, include
<code class="leafygreen-ui-1l06pbn">
net.ssl.allowConnectionsWithoutCertificates
</code>
set to
<code class="leafygreen-ui-1l06pbn">
true
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"net:\n ssl:\n mode: requireSSL\n PEMKeyFile: /etc/ssl/mongodb.pem\n CAFile: /etc/ssl/caToValidateClientCertificates.pem\n allowConnectionsWithoutCertificates: true","programmingLanguage":"YAML"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light yaml leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">net:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">ssl:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">mode:</span> <span class="lg-highlight-string">requireSSL</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">PEMKeyFile:</span> <span class="lg-highlight-string">/etc/ssl/mongodb.pem</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">CAFile:</span> <span class="lg-highlight-string">/etc/ssl/caToValidateClientCertificates.pem</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">allowConnectionsWithoutCertificates:</span> <span class="lg-highlight-literal">true</span></td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
/
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
running with these
settings allows connection from:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Clients that do not present a certificate.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Clients that present a valid certificate.
</p>
</li>
</ul>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
If the client presents a certificate, the certificate must be a
valid certificate.
</p>
<p class="leafygreen-ui-1kp3ins">
All connections, including those that have not presented
certificates, are encrypted using TLS/SSL.
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/configure-ssl-clients/#std-label-ssl-clients">
TLS/SSL Configuration for Clients
</a>
for more information on TLS/SSL connections for
clients.
</p>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
You can also configure using the command-line options:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
, see
<code class="leafygreen-ui-1l06pbn">
--sslAllowConnectionsWithoutCertificates
</code>
.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
, see
<code class="leafygreen-ui-1l06pbn">
--sslAllowConnectionsWithoutCertificates
</code>
.
</p>
</li>
</ul>
</div>
</div>
</section>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Disallow Protocols
<a class="headerlink leafygreen-ui-1kepx47" href="#disallow-protocols-1" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="disallow-protocols-1">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
To prevent MongoDB servers from accepting incoming connections that use
specific protocols, include
<code class="leafygreen-ui-1l06pbn">
net.ssl.disabledProtocols
</code>
set to
the disallowed protocols.
</p>
<p class="leafygreen-ui-1kp3ins">
For example, the following configuration prevents
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
/
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
from accepting incoming
connections that use either
<code class="leafygreen-ui-1l06pbn">
TLS1_0
</code>
or
<code class="leafygreen-ui-1l06pbn">
TLS1_1
</code>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"net:\n ssl:\n mode: requireSSL\n PEMKeyFile: /etc/ssl/mongodb.pem\n CAFile: /etc/ssl/caToValidateClientCertificates.pem\n disabledProtocols: TLS1_0,TLS1_1","programmingLanguage":"YAML"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light yaml leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">net:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">ssl:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">mode:</span> <span class="lg-highlight-string">requireSSL</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">PEMKeyFile:</span> <span class="lg-highlight-string">/etc/ssl/mongodb.pem</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">CAFile:</span> <span class="lg-highlight-string">/etc/ssl/caToValidateClientCertificates.pem</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">disabledProtocols:</span> <span class="lg-highlight-string">TLS1_0,TLS1_1</span></td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
You can also configure using the command-line options:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
, see
<code class="leafygreen-ui-1l06pbn">
--sslDisabledProtocols
</code>
.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
, see
<code class="leafygreen-ui-1l06pbn">
--sslDisabledProtocols
</code>
.
</p>
</li>
</ul>
</div>
</div>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
TLS/SSL Certificate Passphrase
<a class="headerlink leafygreen-ui-1kepx47" href="#tls-ssl-certificate-passphrase-1" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="tls-ssl-certificate-passphrase-1">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
If the certificate key files for
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
/
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
are encrypted, include
<code class="leafygreen-ui-1l06pbn">
net.ssl.PEMKeyPassword
</code>
set to the passphrase.
</p>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
You can also configure using the command-line options:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
, see
<code class="leafygreen-ui-1l06pbn">
sslPEMKeyPassword
</code>
.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
, see
<code class="leafygreen-ui-1l06pbn">
--sslPEMKeyPassword
</code>
.
</p>
</li>
</ul>
</div>
</div>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Run in FIPS Mode
<a class="headerlink leafygreen-ui-1kepx47" href="#run-in-fips-mode-1" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="run-in-fips-mode-1">
</div>
</a>
</h3>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
FIPS-compatible TLS/SSL is
available only in
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://www.mongodb.com/products/mongodb-enterprise-advanced?tck=docs_server" target="_self">
<span>
MongoDB Enterprise
</span>
</a>
. See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/configure-fips/">
Configure MongoDB for FIPS
</a>
for more information.
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/configure-fips/">
Configure MongoDB for FIPS
</a>
for more details.
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Next Steps
<a class="headerlink leafygreen-ui-1kepx47" href="#next-steps-1" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="next-steps-1">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
To configure TLS/SSL support for clients, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/configure-ssl-clients/">
TLS/SSL Configuration for Clients
<!-- -->
.
</a>
</p>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/configure-x509-client-authentication/">
Use x.509 Certificates to Authenticate Clients on Self-Managed Deployments
</a>
</p>
</div>
</div>
</section>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/method/db.collection.createSearchIndex/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
db.collection.createSearchIndex()
<a class="headerlink leafygreen-ui-1kepx47" href="#db.collection.createsearchindex--" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="db.collection.createsearchindex--">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#definition" target="_self">
<span>
Definition
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#compatibility" target="_self">
<span>
Compatibility
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#syntax" target="_self">
<span>
Syntax
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#command-fields" target="_self">
<span>
Command Fields
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#search-index-definition-syntax" target="_self">
<span>
Search Index Definition Syntax
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#vector-search-index-definition-syntax" target="_self">
<span>
Vector Search Index Definition Syntax
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#behavior" target="_self">
<span>
Behavior
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#access-control" target="_self">
<span>
Access Control
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#examples" target="_self">
<span>
Examples
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#create-a-search-index-on-all-fields" target="_self">
<span>
Create a Search Index on All Fields
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#create-a-search-index-with-a-language-analyzer" target="_self">
<span>
Create a Search Index with a Language Analyzer
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#create-a-search-index-with-the-default-name" target="_self">
<span>
Create a Search Index with the Default Name
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#create-a-vector-search-index" target="_self">
<span>
Create a Vector Search Index
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#learn-more" target="_self">
<span>
Learn More
</span>
</a>
</li>
</ul>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Definition
<a class="headerlink leafygreen-ui-1kepx47" href="#definition" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="definition">
</div>
</a>
</h2>
<dl class="method">
<dt>
<code class="leafygreen-ui-1l06pbn">
db.collection.createSearchIndex()
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-method-db.collection.createSearchIndex" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-method-db.collection.createSearchIndex">
</div>
</a>
</dt>
<dd>
</dd>
</dl>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
7.0
</em>
:
<!-- -->
<!-- -->
(
<em>
Also available starting in 6.0.7
</em>
)
</p>
</div>
<p class="leafygreen-ui-1kp3ins">
Creates an
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/atlas-search/atlas-search-overview/#fts-indexes" target="_self">
<span>
Atlas Search index
</span>
</a>
or
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/atlas-vector-search/vector-search-overview/" target="_self">
<span>
Vector Search index
</span>
</a>
on a specified collection.
</p>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
mongosh Method
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
This page documents a
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
method. This is
<em>
not
</em>
the documentation for database commands or language-specific drivers,
such as Node.js.
</p>
<p class="leafygreen-ui-1kp3ins">
For the database command, see the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/createSearchIndexes/#mongodb-dbcommand-dbcmd.createSearchIndexes">
<code class="leafygreen-ui-1l06pbn">
createSearchIndexes
</code>
</a>
command
<!-- -->
.
</p>
<p class="leafygreen-ui-1kp3ins">
For MongoDB API drivers, refer to the language-specific
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/drivers/" target="_self">
<span>
MongoDB driver documentation
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Compatibility
<a class="headerlink leafygreen-ui-1kepx47" href="#compatibility" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="compatibility">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
This method is available in deployments hosted in the following environments:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas?tck=docs_server" target="_self">
<span>
MongoDB Atlas
</span>
</a>
: The fully
managed service for MongoDB deployments in the cloud
</p>
</li>
</ul>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
This command is not supported in M0, M2, and M5 clusters or in serverless instances.
For more information, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/unsupported-commands/" target="_self">
<span>
Unsupported Commands
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Syntax
<a class="headerlink leafygreen-ui-1kepx47" href="#syntax" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="syntax">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
Command syntax:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.<collection>.createSearchIndex(\n <name>,\n <type>,\n {\n <definition>\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<!-- --><<!-- -->collection<!-- -->><!-- -->.<span class="lg-highlight-title lg-highlight-function">createSearchIndex</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <<!-- -->name<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- --><<!-- -->type<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <<!-- -->definition<!-- -->></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->}</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Command Fields
<a class="headerlink leafygreen-ui-1kepx47" href="#command-fields" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="command-fields">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
createSearchIndex()
</code>
takes these fields:
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:20%"/>
<col style="width:20%"/>
<col style="width:20%"/>
<col style="width:80%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Field
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Type
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Necessity
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
name
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
string
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Optional
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Name of the search index to create.
</p>
<p class="leafygreen-ui-1kp3ins">
You cannot create multiple indexes with the same name on a single
collection.
</p>
<p class="leafygreen-ui-1kp3ins">
If you do not specify a
<code class="leafygreen-ui-1l06pbn">
name
</code>
, the index is named
<code class="leafygreen-ui-1l06pbn">
default
</code>
.
</p>
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
type
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
string
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Optional
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Type of search index to create. You can specify either:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
search
</code>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
vectorSearch
</code>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
If you omit the
<code class="leafygreen-ui-1l06pbn">
type
</code>
field, the index type is
<code class="leafygreen-ui-1l06pbn">
search
</code>
.
</p>
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
definition
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
document
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Required
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Document describing the index to create. The
<code class="leafygreen-ui-1l06pbn">
definition
</code>
syntax
depends on whether you create a standard search index or a Vector
Search index. For the
<code class="leafygreen-ui-1l06pbn">
definition
</code>
syntax, see:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-search-index-definition-create-mongosh" target="_self">
<span>
Search Index Definition Syntax
</span>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-vector-search-index-definition-create-mongosh" target="_self">
<span>
Vector Search Index Definition Syntax
</span>
</a>
</p>
</li>
</ul>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-search-index-definition-create-mongosh">
</span>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Search Index Definition Syntax
<a class="headerlink leafygreen-ui-1kepx47" href="#search-index-definition-syntax" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="search-index-definition-syntax">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The search index definition takes the following fields:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n analyzer: \"<analyzer-for-index>\",\n searchAnalyzer: \"<analyzer-for-query>\",\n mappings: {\n dynamic: <boolean>,\n fields: { <field-definition> }\n },\n analyzers: [ <custom-analyzer> ],\n storedSource: <boolean> | {\n <stored-source-definition>\n },\n synonyms: [ {\n name: \"<synonym-mapping-name>\",\n source: {\n collection: \"<source-collection-name>\"\n },\n analyzer: \"<synonym-mapping-analyzer>\"\n } ]\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">analyzer</span>: <span class="lg-highlight-string">"<analyzer-for-index>"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">searchAnalyzer</span>: <span class="lg-highlight-string">"<analyzer-for-query>"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">mappings</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">dynamic</span>: <<!-- -->boolean<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">fields</span>: <!-- -->{ <<!-- -->field<!-- -->-<!-- -->definition<!-- -->> <!-- -->}</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">analyzers</span>: <!-- -->[ <<!-- -->custom<!-- -->-<!-- -->analyzer<!-- -->> <!-- -->]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">storedSource</span>: <<!-- -->boolean<!-- -->> <!-- -->| <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <<!-- -->stored<!-- -->-<!-- -->source<!-- -->-<!-- -->definition<!-- -->></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">synonyms</span>: <!-- -->[ <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">"<synonym-mapping-name>"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">source</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">collection</span>: <span class="lg-highlight-string">"<source-collection-name>"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">analyzer</span>: <span class="lg-highlight-string">"<synonym-mapping-analyzer>"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> } ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:20%"/>
<col style="width:20%"/>
<col style="width:20%"/>
<col style="width:80%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Field
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Type
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Necessity
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
analyzer
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
string
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Optional
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Specifies the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/atlas-search/analyzers/#std-label-analyzers-ref" target="_self">
<span>
analyzer
</span>
</a>
to apply to
string fields when indexing.
</p>
<p class="leafygreen-ui-1kp3ins">
If you omit this field, the index uses the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/atlas-search/analyzers/standard/#std-label-ref-standard-analyzer" target="_self">
<span>
standard analyzer
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
searchAnalyzer
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
string
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Optional
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Specifies the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/atlas-search/analyzers/#std-label-analyzers-ref" target="_self">
<span>
analyzer
</span>
</a>
to apply to query
text before the text is searched.
</p>
<p class="leafygreen-ui-1kp3ins">
If you omit this field, the index uses the same analyzer specified
in the
<code class="leafygreen-ui-1l06pbn">
analyzer
</code>
field.
</p>
<p class="leafygreen-ui-1kp3ins">
If you omit both the
<code class="leafygreen-ui-1l06pbn">
searchAnalyzer
</code>
and the
<code class="leafygreen-ui-1l06pbn">
analyzer
</code>
fields, the index uses the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/atlas-search/analyzers/standard/#std-label-ref-standard-analyzer" target="_self">
<span>
standard analyzer
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
mappings
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
object
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Optional
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Specifies how to index fields on different paths for this index.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
mappings.dynamic
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
boolean
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Optional
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Enables or disables dynamic field mapping for this index.
</p>
<p class="leafygreen-ui-1kp3ins">
If set to
<code class="leafygreen-ui-1l06pbn">
true
</code>
, the index contains all fields containing
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/atlas-search/define-field-mappings/#std-label-bson-data-chart" target="_self">
<span>
supported data types
<!-- -->
.
</span>
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
If set to
<code class="leafygreen-ui-1l06pbn">
false
</code>
, you must specify individual fields to index
using
<code class="leafygreen-ui-1l06pbn">
mappings.fields
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
If omitted, defaults to
<code class="leafygreen-ui-1l06pbn">
false
</code>
.
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
mappings.fields
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
document
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Conditional
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Required only if dynamic mapping is disabled.
</p>
<p class="leafygreen-ui-1kp3ins">
Specifies the fields to index. To learn more, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/atlas-search/define-field-mappings/#std-label-fts-field-mappings" target="_self">
<span>
Define Field Mappings
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
analyzers
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
array
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Optional
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Specifies the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/atlas-search/analyzers/custom/#std-label-custom-analyzers" target="_self">
<span>
Custom Analyzers
</span>
</a>
to use in this index.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
storedSource
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
boolean or
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/atlas-search/stored-source-definition/#std-label-fts-stored-source-definition" target="_self">
<span>
Stored Source Definition
</span>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Optional
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Specifies document fields to store for queries performed using
the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/atlas-search/return-stored-source/#std-label-fts-return-stored-source-option" target="_self">
<span>
returnedStoredSource
</span>
</a>
option.
</p>
<p class="leafygreen-ui-1kp3ins">
You can store fields of all
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/atlas-search/define-field-mappings/#std-label-bson-data-chart" target="_self">
<span>
Data Types
</span>
</a>
on Atlas Search.
The
<code class="leafygreen-ui-1l06pbn">
storedSource
</code>
value can be one of these:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
true
</code>
, to store all fields
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
false
</code>
, to not store any fields
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
An
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/atlas-search/stored-source-definition/#std-label-fts-stored-source-document" target="_self">
<span>
object
</span>
</a>
that specifies the
fields to
<code class="leafygreen-ui-1l06pbn">
include
</code>
or
<code class="leafygreen-ui-1l06pbn">
exclude
</code>
from storage
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
If omitted, defaults to
<code class="leafygreen-ui-1l06pbn">
false
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
To learn more, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/atlas-search/stored-source-definition/#std-label-fts-stored-source-definition" target="_self">
<span>
Define Stored Source Fields in Your Atlas Search Index
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
synonyms
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
array of
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/atlas-search/synonyms/#std-label-synonyms-ref" target="_self">
<span>
Synonym Mapping Definitions
</span>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Optional
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Specifies synonym mappings to use in your index. Configuring
synonyms allows you to index and search for words that have
the same or a similar meaning.
</p>
<p class="leafygreen-ui-1kp3ins">
To learn more, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/atlas-search/synonyms/#std-label-synonyms-ref" target="_self">
<span>
Define Synonym Mappings in Your Atlas Search Index
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-vector-search-index-definition-create-mongosh">
</span>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Vector Search Index Definition Syntax
<a class="headerlink leafygreen-ui-1kepx47" href="#vector-search-index-definition-syntax" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="vector-search-index-definition-syntax">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The vector search index definition takes the following fields:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n \"fields\": [\n {\n \"type\": \"vector\" | \"filter\",\n \"path\": \"<field-to-index>\",\n \"numDimensions\": <number-of-dimensions>,\n \"similarity\": \"euclidean\" | \"cosine\" | \"dotProduct\"\n }\n ]\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"fields"</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"type"</span>: <span class="lg-highlight-string">"vector"</span> <!-- -->| <span class="lg-highlight-string">"filter"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"path"</span>: <span class="lg-highlight-string">"<field-to-index>"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"numDimensions"</span>: <<!-- -->number<!-- -->-<span class="lg-highlight-keyword">of</span>-<!-- -->dimensions<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"similarity"</span>: <span class="lg-highlight-string">"euclidean"</span> <!-- -->| <span class="lg-highlight-string">"cosine"</span> <!-- -->| <span class="lg-highlight-string">"dotProduct"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
For explanations of vector search index definition fields, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/atlas-vector-search/vector-search-type/#std-label-avs-types-vector-search" target="_self">
<span>
How to Index Fields for Vector Search
<!-- -->
.
</span>
</a>
</p>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Behavior
<a class="headerlink leafygreen-ui-1kepx47" href="#behavior" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="behavior">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
createSearchIndex()
</code>
triggers an index build. There may be a delay
between when you receive a response from the command and when the index
is ready.
</p>
<p class="leafygreen-ui-1kp3ins">
To see the status of your search indexes, use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/listSearchIndexes/#mongodb-pipeline-pipe.-listSearchIndexes">
<code class="leafygreen-ui-1l06pbn">
$listSearchIndexes
</code>
</a>
aggregation stage.
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Access Control
<a class="headerlink leafygreen-ui-1kepx47" href="#access-control" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="access-control">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
If your deployment enforces access control, the user running
<code class="leafygreen-ui-1l06pbn">
createSearchIndex()
</code>
must have the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/privilege-actions/#mongodb-authaction-createSearchIndexes">
<code class="leafygreen-ui-1l06pbn">
createSearchIndexes
</code>
</a>
privilege
action on the database or collection:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n resource: {\n db : <database>,\n collection: <collection>\n },\n actions: [ \"createSearchIndexes\" ]\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">resource</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->db <!-- -->: <<!-- -->database<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">collection</span>: <<!-- -->collection<!-- -->></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">actions</span>: <!-- -->[ <span class="lg-highlight-string">"createSearchIndexes"</span> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
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<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The built-in
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/built-in-roles/#mongodb-authrole-readWrite">
<code class="leafygreen-ui-1l06pbn">
readWrite
</code>
</a>
role provides the
<code class="leafygreen-ui-1l06pbn">
createSearchIndexes
</code>
privilege. The following example grants
<code class="leafygreen-ui-1l06pbn">
accountUser01
</code>
the
<code class="leafygreen-ui-1l06pbn">
readWrite
</code>
role on the
<code class="leafygreen-ui-1l06pbn">
products
</code>
database:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.grantRolesToUser(\n \"accountUser01\",\n [ { role: \"readWrite\", db: \"products\" } ]\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">grantRolesToUser</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"accountUser01"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->[ <!-- -->{ <span class="lg-highlight-attr">role</span>: <span class="lg-highlight-string">"readWrite"</span>, <span class="lg-highlight-attr">db</span>: <span class="lg-highlight-string">"products"</span> } ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Examples
<a class="headerlink leafygreen-ui-1kepx47" href="#examples" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="examples">
</div>
</a>
</h2>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Create a Search Index on All Fields
<a class="headerlink leafygreen-ui-1kepx47" href="#create-a-search-index-on-all-fields" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="create-a-search-index-on-all-fields">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The following example creates a search index named
<code class="leafygreen-ui-1l06pbn">
searchIndex01
</code>
on
the
<code class="leafygreen-ui-1l06pbn">
movies
</code>
collection:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.movies.createSearchIndex(\n \"searchIndex01\",\n { mappings: { dynamic: true } }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">movies</span>.<span class="lg-highlight-title lg-highlight-function">createSearchIndex</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"searchIndex01"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">mappings</span>: <!-- -->{ <span class="lg-highlight-attr">dynamic</span>: <span class="lg-highlight-literal">true</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The index definition specifies
<code class="leafygreen-ui-1l06pbn">
mappings: { dynamic: true }
</code>
, which
means that the index contains all fields in the collection that have
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/atlas-search/define-field-mappings/#std-label-bson-data-chart" target="_self">
<span>
supported data types
<!-- -->
.
</span>
</a>
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Create a Search Index with a Language Analyzer
<a class="headerlink leafygreen-ui-1kepx47" href="#create-a-search-index-with-a-language-analyzer" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="create-a-search-index-with-a-language-analyzer">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
A language analyzer introduces stop-words, which are words that are not
significant enough to be indexed.
</p>
<p class="leafygreen-ui-1kp3ins">
The following example creates a search index named
<code class="leafygreen-ui-1l06pbn">
frenchIndex01
</code>
on
the
<code class="leafygreen-ui-1l06pbn">
cars
</code>
collection, and specifies the
<code class="leafygreen-ui-1l06pbn">
lucene.french
</code>
analyzer on
the
<code class="leafygreen-ui-1l06pbn">
fr
</code>
field:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.cars.createSearchIndex(\n \"frenchIndex01\",\n {\n mappings: {\n fields: {\n subject: {\n fields: {\n fr: {\n analyzer: \"lucene.french\",\n type: \"string\"\n }\n },\n type: \"document\"\n }\n }\n }\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">cars</span>.<span class="lg-highlight-title lg-highlight-function">createSearchIndex</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"frenchIndex01"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">mappings</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">fields</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">subject</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">fields</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">fr</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">analyzer</span>: <span class="lg-highlight-string">"lucene.french"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">type</span>: <span class="lg-highlight-string">"string"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">type</span>: <span class="lg-highlight-string">"document"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To learn more about language analyzers, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/atlas-search/analyzers/language/#std-label-ref-language-analyzers" target="_self">
<span>
Language Analyzers
<!-- -->
.
</span>
</a>
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Create a Search Index with the Default Name
<a class="headerlink leafygreen-ui-1kepx47" href="#create-a-search-index-with-the-default-name" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="create-a-search-index-with-the-default-name">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The following
<code class="leafygreen-ui-1l06pbn">
createSearchIndex()
</code>
method only specifies the index
definition and omits the index name. The command creates a search index
with the name
<code class="leafygreen-ui-1l06pbn">
default
</code>
on the
<code class="leafygreen-ui-1l06pbn">
food
</code>
collection:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.food.createSearchIndex(\n {\n mappings: {\n fields: {\n title: {\n type: \"string\"\n }\n }\n }\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">food</span>.<span class="lg-highlight-title lg-highlight-function">createSearchIndex</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">mappings</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">fields</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">title</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">type</span>: <span class="lg-highlight-string">"string"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Create a Vector Search Index
<a class="headerlink leafygreen-ui-1kepx47" href="#create-a-vector-search-index" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="create-a-vector-search-index">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The following example creates a vector search index named
<code class="leafygreen-ui-1l06pbn">
vectorSearchIndex01
</code>
on the
<code class="leafygreen-ui-1l06pbn">
movies
</code>
collection:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.movies.createSearchIndex(\n \"vectorSearchIndex01\",\n \"vectorSearch\",\n {\n fields: [\n {\n type: \"vector\",\n numDimensions: 1,\n path: \"genre\",\n similarity: \"cosine\"\n }\n ]\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">movies</span>.<span class="lg-highlight-title lg-highlight-function">createSearchIndex</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"vectorSearchIndex01"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"vectorSearch"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">fields</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">type</span>: <span class="lg-highlight-string">"vector"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">numDimensions</span>: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">path</span>: <span class="lg-highlight-string">"genre"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">similarity</span>: <span class="lg-highlight-string">"cosine"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The vector search index contains one dimension and indexes the
<code class="leafygreen-ui-1l06pbn">
genre
</code>
field.
</p>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Learn More
<a class="headerlink leafygreen-ui-1kepx47" href="#learn-more" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="learn-more">
</div>
</a>
</h2>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/atlas-vector-search/vector-search-stage/#mongodb-pipeline-pipe.-vectorSearch" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$vectorSearch
</code>
</span>
</a>
aggregation stage
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/atlas-vector-search/tutorials/vector-search-tutorial/#std-label-vector-search-tutorial" target="_self">
<span>
Tutorial: Semantic Search
</span>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/atlas-vector-search/changelog/" target="_self">
<span>
Atlas Vector Search Changelog
</span>
</a>
</p>
</li>
</ul>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/operator/aggregation/replaceRoot/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
$replaceRoot (aggregation)
<a class="headerlink leafygreen-ui-1kepx47" href="#-replaceroot--aggregation-" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="-replaceroot--aggregation-">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#definition" target="_self">
<span>
Definition
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#behavior" target="_self">
<span>
Behavior
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#examples" target="_self">
<span>
Examples
</span>
</a>
</li>
</ul>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Definition
<a class="headerlink leafygreen-ui-1kepx47" href="#definition" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="definition">
</div>
</a>
</h2>
<dl class="pipeline">
<dt>
<code class="leafygreen-ui-1l06pbn">
$replaceRoot
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-pipeline-pipe.-replaceRoot" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-pipeline-pipe.-replaceRoot">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Replaces the input document with the specified document. The
operation replaces all existing fields in the input document,
including the
<code class="leafygreen-ui-1l06pbn">
_id
</code>
field. You can promote an existing
embedded document to the top level, or create a new document
for promotion (see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-new-replacement-doc" target="_self">
<span>
example
</span>
</a>
).
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
You can also use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/replaceWith/#mongodb-pipeline-pipe.-replaceWith">
<code class="leafygreen-ui-1l06pbn">
$replaceWith
</code>
</a>
stage. The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/replaceWith/#mongodb-pipeline-pipe.-replaceWith">
<code class="leafygreen-ui-1l06pbn">
$replaceWith
</code>
</a>
stage peforms the same action as the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-pipeline-pipe.-replaceRoot" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$replaceRoot
</code>
</span>
</a>
stage, but the stages have different forms.
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-pipeline-pipe.-replaceRoot" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$replaceRoot
</code>
</span>
</a>
stage has the following form:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ $replaceRoot: { newRoot: <replacementdocument> } }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-attr">$replaceRoot</span>: <!-- -->{ <span class="lg-highlight-attr">newRoot</span>: <<!-- -->replacementDocument<!-- -->> <!-- -->} }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The replacement document can be any valid
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/#std-label-aggregation-expressions">
expression
</a>
that resolves to a document. The stage
errors and fails if
<code class="leafygreen-ui-1l06pbn">
<replacementDocument>
</code>
is not a document. For
more information on expressions, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/#std-label-aggregation-expressions">
Expression Operators
<!-- -->
.
</a>
</p>
</dd>
</dl>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Behavior
<a class="headerlink leafygreen-ui-1kepx47" href="#behavior" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="behavior">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
If the
<code class="leafygreen-ui-1l06pbn">
<replacementDocument>
</code>
is not a document,
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-pipeline-pipe.-replaceRoot" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$replaceRoot
</code>
</span>
</a>
errors and fails.
</p>
<p class="leafygreen-ui-1kp3ins">
If the
<code class="leafygreen-ui-1l06pbn">
<replacementDocument>
</code>
resolves to a missing document (i.e.
the document does not exist),
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-pipeline-pipe.-replaceRoot" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$replaceRoot
</code>
</span>
</a>
errors and
fails. For example, create a collection with the following
documents:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.collection.insertMany([\n { \"_id\": 1, \"name\" : { \"first\" : \"John\", \"last\" : \"Backus\" } },\n { \"_id\": 2, \"name\" : { \"first\" : \"John\", \"last\" : \"McCarthy\" } },\n { \"_id\": 3, \"name\": { \"first\" : \"Grace\", \"last\" : \"Hopper\" } },\n { \"_id\": 4, \"firstname\": \"Ole-Johan\", \"lastname\" : \"Dahl\" },\n])","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">collection</span>.<span class="lg-highlight-title lg-highlight-function">insertMany</span>(<!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"_id"</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-string">"name"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"first"</span> <!-- -->: <span class="lg-highlight-string">"John"</span>, <span class="lg-highlight-string">"last"</span> <!-- -->: <span class="lg-highlight-string">"Backus"</span> } }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"_id"</span>: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-string">"name"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"first"</span> <!-- -->: <span class="lg-highlight-string">"John"</span>, <span class="lg-highlight-string">"last"</span> <!-- -->: <span class="lg-highlight-string">"McCarthy"</span> } }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"_id"</span>: <span class="lg-highlight-number">3</span>, <span class="lg-highlight-string">"name"</span>: <!-- -->{ <span class="lg-highlight-string">"first"</span> <!-- -->: <span class="lg-highlight-string">"Grace"</span>, <span class="lg-highlight-string">"last"</span> <!-- -->: <span class="lg-highlight-string">"Hopper"</span> } }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"_id"</span>: <span class="lg-highlight-number">4</span>, <span class="lg-highlight-string">"firstname"</span>: <span class="lg-highlight-string">"Ole-Johan"</span>, <span class="lg-highlight-string">"lastname"</span> <!-- -->: <span class="lg-highlight-string">"Dahl"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx">])</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Then the following
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-pipeline-pipe.-replaceRoot" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$replaceRoot
</code>
</span>
</a>
operation fails because one
of the documents does not have the
<code class="leafygreen-ui-1l06pbn">
name
</code>
field:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.collection.aggregate([\n { $replaceRoot: { newRoot: \"$name\" } }\n])","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">collection</span>.<span class="lg-highlight-title lg-highlight-function">aggregate</span>(<!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">$replaceRoot</span>: <!-- -->{ <span class="lg-highlight-attr">newRoot</span>: <span class="lg-highlight-string">"$name"</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">])</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To avoid the error, you can use
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/mergeObjects/#mongodb-expression-exp.-mergeObjects">
<code class="leafygreen-ui-1l06pbn">
$mergeObjects
</code>
</a>
to merge
the
<code class="leafygreen-ui-1l06pbn">
name
</code>
document into some default document; for example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.collection.aggregate([\n { $replaceRoot: { newRoot: { $mergeObjects: [ { _id: \"$_id\", first: \"\", last: \"\" }, \"$name\" ] } } }\n])","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">collection</span>.<span class="lg-highlight-title lg-highlight-function">aggregate</span>(<!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">$replaceRoot</span>: <!-- -->{ <span class="lg-highlight-attr">newRoot</span>: <!-- -->{ <span class="lg-highlight-attr">$mergeObjects</span>: <!-- -->[ <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-string">"$_id"</span>, <span class="lg-highlight-attr">first</span>: <span class="lg-highlight-string">""</span>, <span class="lg-highlight-attr">last</span>: <span class="lg-highlight-string">""</span> }<!-- -->, <span class="lg-highlight-string">"$name"</span> ] } } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">])</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Alternatively, you can skip the documents that are missing the
<code class="leafygreen-ui-1l06pbn">
name
</code>
field by
including a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/match/#mongodb-pipeline-pipe.-match">
<code class="leafygreen-ui-1l06pbn">
$match
</code>
</a>
stage to check for existence of the
document field before passing documents to the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-pipeline-pipe.-replaceRoot" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$replaceRoot
</code>
</span>
</a>
stage:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.collection.aggregate([\n { $match: { name : { $exists: true, $not: { $type: \"array\" }, $type: \"object\" } } },\n { $replaceRoot: { newRoot: \"$name\" } }\n])","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">collection</span>.<span class="lg-highlight-title lg-highlight-function">aggregate</span>(<!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">$match</span>: <!-- -->{ <!-- -->name <!-- -->: <!-- -->{ <span class="lg-highlight-attr">$exists</span>: <span class="lg-highlight-literal">true</span>, <span class="lg-highlight-attr">$not</span>: <!-- -->{ <span class="lg-highlight-attr">$type</span>: <span class="lg-highlight-string">"array"</span> }<!-- -->, <span class="lg-highlight-attr">$type</span>: <span class="lg-highlight-string">"object"</span> } } }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">$replaceRoot</span>: <!-- -->{ <span class="lg-highlight-attr">newRoot</span>: <span class="lg-highlight-string">"$name"</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">])</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Or, you can use
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/ifNull/#mongodb-expression-exp.-ifNull">
<code class="leafygreen-ui-1l06pbn">
$ifNull
</code>
</a>
expression to specify some other
document to be root; for example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.collection.aggregate([\n { $replaceRoot: { newRoot: { $ifNull: [ \"$name\", { _id: \"$_id\", missingName: true} ] } } }\n])","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">collection</span>.<span class="lg-highlight-title lg-highlight-function">aggregate</span>(<!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">$replaceRoot</span>: <!-- -->{ <span class="lg-highlight-attr">newRoot</span>: <!-- -->{ <span class="lg-highlight-attr">$ifNull</span>: <!-- -->[ <span class="lg-highlight-string">"$name"</span>, <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-string">"$_id"</span>, <span class="lg-highlight-attr">missingName</span>: <span class="lg-highlight-literal">true</span>} ] } } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">])</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Examples
<a class="headerlink leafygreen-ui-1kepx47" href="#examples" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="examples">
</div>
</a>
</h2>
<span class="leafygreen-ui-1qnjd6d" id="std-label-replace-with-match">
</span>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
<code class="leafygreen-ui-1l06pbn">
$replaceRoot
</code>
with an Embedded Document Field
<a class="headerlink leafygreen-ui-1kepx47" href="#-replaceroot-with-an-embedded-document-field" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="-replaceroot-with-an-embedded-document-field">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
A collection named
<code class="leafygreen-ui-1l06pbn">
people
</code>
contains the following documents:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ \"_id\" : 1, \"name\" : \"Arlene\", \"age\" : 34, \"pets\" : { \"dogs\" : 2, \"cats\" : 1 } }\n{ \"_id\" : 2, \"name\" : \"Sam\", \"age\" : 41, \"pets\" : { \"cats\" : 1, \"fish\" : 3 } }\n{ \"_id\" : 3, \"name\" : \"Maria\", \"age\" : 25 }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-string">"name"</span> <!-- -->: <span class="lg-highlight-string">"Arlene"</span>, <span class="lg-highlight-string">"age"</span> <!-- -->: <span class="lg-highlight-number">34</span>, <span class="lg-highlight-string">"pets"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"dogs"</span> <!-- -->: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-string">"cats"</span> <!-- -->: <span class="lg-highlight-number">1</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-string">"name"</span> <!-- -->: <span class="lg-highlight-string">"Sam"</span>, <span class="lg-highlight-string">"age"</span> <!-- -->: <span class="lg-highlight-number">41</span>, <span class="lg-highlight-string">"pets"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"cats"</span> <!-- -->: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-string">"fish"</span> <!-- -->: <span class="lg-highlight-number">3</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">3</span>, <span class="lg-highlight-string">"name"</span> <!-- -->: <span class="lg-highlight-string">"Maria"</span>, <span class="lg-highlight-string">"age"</span> <!-- -->: <span class="lg-highlight-number">25</span> }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The following operation uses the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-pipeline-pipe.-replaceRoot" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$replaceRoot
</code>
</span>
</a>
stage to
replace each input document with the result of a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/mergeObjects/#mongodb-expression-exp.-mergeObjects">
<code class="leafygreen-ui-1l06pbn">
$mergeObjects
</code>
</a>
operation. The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/mergeObjects/#mongodb-expression-exp.-mergeObjects">
<code class="leafygreen-ui-1l06pbn">
$mergeObjects
</code>
</a>
expression merges the specified default document with the
<code class="leafygreen-ui-1l06pbn">
pets
</code>
document.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.people.aggregate( [\n { $replaceRoot: { newRoot: { $mergeObjects: [ { dogs: 0, cats: 0, birds: 0, fish: 0 }, \"$pets\" ] }} }\n] )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">people</span>.<span class="lg-highlight-title lg-highlight-function">aggregate</span>( <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">$replaceRoot</span>: <!-- -->{ <span class="lg-highlight-attr">newRoot</span>: <!-- -->{ <span class="lg-highlight-attr">$mergeObjects</span>: <!-- -->[ <!-- -->{ <span class="lg-highlight-attr">dogs</span>: <span class="lg-highlight-number">0</span>, <span class="lg-highlight-attr">cats</span>: <span class="lg-highlight-number">0</span>, <span class="lg-highlight-attr">birds</span>: <span class="lg-highlight-number">0</span>, <span class="lg-highlight-attr">fish</span>: <span class="lg-highlight-number">0</span> }<!-- -->, <span class="lg-highlight-string">"$pets"</span> ] }} }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">] )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The operation returns the following results:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ \"dogs\" : 2, \"cats\" : 1, \"birds\" : 0, \"fish\" : 0 }\n{ \"dogs\" : 0, \"cats\" : 1, \"birds\" : 0, \"fish\" : 3 }\n{ \"dogs\" : 0, \"cats\" : 0, \"birds\" : 0, \"fish\" : 0 }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"dogs"</span> <!-- -->: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-string">"cats"</span> <!-- -->: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-string">"birds"</span> <!-- -->: <span class="lg-highlight-number">0</span>, <span class="lg-highlight-string">"fish"</span> <!-- -->: <span class="lg-highlight-number">0</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"dogs"</span> <!-- -->: <span class="lg-highlight-number">0</span>, <span class="lg-highlight-string">"cats"</span> <!-- -->: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-string">"birds"</span> <!-- -->: <span class="lg-highlight-number">0</span>, <span class="lg-highlight-string">"fish"</span> <!-- -->: <span class="lg-highlight-number">3</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"dogs"</span> <!-- -->: <span class="lg-highlight-number">0</span>, <span class="lg-highlight-string">"cats"</span> <!-- -->: <span class="lg-highlight-number">0</span>, <span class="lg-highlight-string">"birds"</span> <!-- -->: <span class="lg-highlight-number">0</span>, <span class="lg-highlight-string">"fish"</span> <!-- -->: <span class="lg-highlight-number">0</span> }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
<code class="leafygreen-ui-1l06pbn">
$replaceRoot
</code>
with a Document Nested in an Array
<a class="headerlink leafygreen-ui-1kepx47" href="#-replaceroot-with-a-document-nested-in-an-array" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="-replaceroot-with-a-document-nested-in-an-array">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
A collection named
<code class="leafygreen-ui-1l06pbn">
students
</code>
contains the following documents:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.students.insertMany([\n {\n \"_id\" : 1,\n \"grades\" : [\n { \"test\": 1, \"grade\" : 80, \"mean\" : 75, \"std\" : 6 },\n { \"test\": 2, \"grade\" : 85, \"mean\" : 90, \"std\" : 4 },\n { \"test\": 3, \"grade\" : 95, \"mean\" : 85, \"std\" : 6 }\n ]\n },\n {\n \"_id\" : 2,\n \"grades\" : [\n { \"test\": 1, \"grade\" : 90, \"mean\" : 75, \"std\" : 6 },\n { \"test\": 2, \"grade\" : 87, \"mean\" : 90, \"std\" : 3 },\n { \"test\": 3, \"grade\" : 91, \"mean\" : 85, \"std\" : 4 }\n ]\n }\n])","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">students</span>.<span class="lg-highlight-title lg-highlight-function">insertMany</span>(<!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"grades"</span> <!-- -->: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"test"</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-string">"grade"</span> <!-- -->: <span class="lg-highlight-number">80</span>, <span class="lg-highlight-string">"mean"</span> <!-- -->: <span class="lg-highlight-number">75</span>, <span class="lg-highlight-string">"std"</span> <!-- -->: <span class="lg-highlight-number">6</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"test"</span>: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-string">"grade"</span> <!-- -->: <span class="lg-highlight-number">85</span>, <span class="lg-highlight-string">"mean"</span> <!-- -->: <span class="lg-highlight-number">90</span>, <span class="lg-highlight-string">"std"</span> <!-- -->: <span class="lg-highlight-number">4</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"test"</span>: <span class="lg-highlight-number">3</span>, <span class="lg-highlight-string">"grade"</span> <!-- -->: <span class="lg-highlight-number">95</span>, <span class="lg-highlight-string">"mean"</span> <!-- -->: <span class="lg-highlight-number">85</span>, <span class="lg-highlight-string">"std"</span> <!-- -->: <span class="lg-highlight-number">6</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">2</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"grades"</span> <!-- -->: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"test"</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-string">"grade"</span> <!-- -->: <span class="lg-highlight-number">90</span>, <span class="lg-highlight-string">"mean"</span> <!-- -->: <span class="lg-highlight-number">75</span>, <span class="lg-highlight-string">"std"</span> <!-- -->: <span class="lg-highlight-number">6</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"test"</span>: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-string">"grade"</span> <!-- -->: <span class="lg-highlight-number">87</span>, <span class="lg-highlight-string">"mean"</span> <!-- -->: <span class="lg-highlight-number">90</span>, <span class="lg-highlight-string">"std"</span> <!-- -->: <span class="lg-highlight-number">3</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"test"</span>: <span class="lg-highlight-number">3</span>, <span class="lg-highlight-string">"grade"</span> <!-- -->: <span class="lg-highlight-number">91</span>, <span class="lg-highlight-string">"mean"</span> <!-- -->: <span class="lg-highlight-number">85</span>, <span class="lg-highlight-string">"std"</span> <!-- -->: <span class="lg-highlight-number">4</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">])</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The following operation promotes the embedded document(s) with the
<code class="leafygreen-ui-1l06pbn">
grade
</code>
field greater than or equal to
<code class="leafygreen-ui-1l06pbn">
90
</code>
to the top level:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.students.aggregate( [\n { $unwind: \"$grades\" },\n { $match: { \"grades.grade\" : { $gte: 90 } } },\n { $replaceRoot: { newRoot: \"$grades\" } }\n] )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">students</span>.<span class="lg-highlight-title lg-highlight-function">aggregate</span>( <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">$unwind</span>: <span class="lg-highlight-string">"$grades"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">$match</span>: <!-- -->{ <span class="lg-highlight-string">"grades.grade"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-attr">$gte</span>: <span class="lg-highlight-number">90</span> } } }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">$replaceRoot</span>: <!-- -->{ <span class="lg-highlight-attr">newRoot</span>: <span class="lg-highlight-string">"$grades"</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">] )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The operation returns the following results:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ \"test\" : 3, \"grade\" : 95, \"mean\" : 85, \"std\" : 6 }\n{ \"test\" : 1, \"grade\" : 90, \"mean\" : 75, \"std\" : 6 }\n{ \"test\" : 3, \"grade\" : 91, \"mean\" : 85, \"std\" : 4 }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"test"</span> <!-- -->: <span class="lg-highlight-number">3</span>, <span class="lg-highlight-string">"grade"</span> <!-- -->: <span class="lg-highlight-number">95</span>, <span class="lg-highlight-string">"mean"</span> <!-- -->: <span class="lg-highlight-number">85</span>, <span class="lg-highlight-string">"std"</span> <!-- -->: <span class="lg-highlight-number">6</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"test"</span> <!-- -->: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-string">"grade"</span> <!-- -->: <span class="lg-highlight-number">90</span>, <span class="lg-highlight-string">"mean"</span> <!-- -->: <span class="lg-highlight-number">75</span>, <span class="lg-highlight-string">"std"</span> <!-- -->: <span class="lg-highlight-number">6</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"test"</span> <!-- -->: <span class="lg-highlight-number">3</span>, <span class="lg-highlight-string">"grade"</span> <!-- -->: <span class="lg-highlight-number">91</span>, <span class="lg-highlight-string">"mean"</span> <!-- -->: <span class="lg-highlight-number">85</span>, <span class="lg-highlight-string">"std"</span> <!-- -->: <span class="lg-highlight-number">4</span> }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-new-replacement-doc">
</span>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
<code class="leafygreen-ui-1l06pbn">
$replaceRoot
</code>
with a newly created document
<a class="headerlink leafygreen-ui-1kepx47" href="#-replaceroot-with-a-newly-created-document" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="-replaceroot-with-a-newly-created-document">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
You can also create new documents as part of the
<code class="leafygreen-ui-1l06pbn">
$replaceRoot
</code>
stage and use them to replace all the other fields.
</p>
<p class="leafygreen-ui-1kp3ins">
A collection named
<code class="leafygreen-ui-1l06pbn">
contacts
</code>
contains the following documents:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ \"_id\" : 1, \"first_name\" : \"Gary\", \"last_name\" : \"Sheffield\", \"city\" : \"New York\" }\n{ \"_id\" : 2, \"first_name\" : \"Nancy\", \"last_name\" : \"Walker\", \"city\" : \"Anaheim\" }\n{ \"_id\" : 3, \"first_name\" : \"Peter\", \"last_name\" : \"Sumner\", \"city\" : \"Toledo\" }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-string">"first_name"</span> <!-- -->: <span class="lg-highlight-string">"Gary"</span>, <span class="lg-highlight-string">"last_name"</span> <!-- -->: <span class="lg-highlight-string">"Sheffield"</span>, <span class="lg-highlight-string">"city"</span> <!-- -->: <span class="lg-highlight-string">"New York"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-string">"first_name"</span> <!-- -->: <span class="lg-highlight-string">"Nancy"</span>, <span class="lg-highlight-string">"last_name"</span> <!-- -->: <span class="lg-highlight-string">"Walker"</span>, <span class="lg-highlight-string">"city"</span> <!-- -->: <span class="lg-highlight-string">"Anaheim"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">3</span>, <span class="lg-highlight-string">"first_name"</span> <!-- -->: <span class="lg-highlight-string">"Peter"</span>, <span class="lg-highlight-string">"last_name"</span> <!-- -->: <span class="lg-highlight-string">"Sumner"</span>, <span class="lg-highlight-string">"city"</span> <!-- -->: <span class="lg-highlight-string">"Toledo"</span> }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The following operation creates a new document out of the
<code class="leafygreen-ui-1l06pbn">
first_name
</code>
and
<code class="leafygreen-ui-1l06pbn">
last_name
</code>
fields.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.contacts.aggregate( [\n {\n $replaceRoot: {\n newRoot: {\n full_name: {\n $concat : [ \"$first_name\", \" \", \"$last_name\" ]\n }\n }\n }\n }\n] )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">contacts</span>.<span class="lg-highlight-title lg-highlight-function">aggregate</span>( <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">$replaceRoot</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">newRoot</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">full_name</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->$concat<!-- --> <!-- -->: <!-- -->[ <span class="lg-highlight-string">"$first_name"</span>, <span class="lg-highlight-string">" "</span>, <span class="lg-highlight-string">"$last_name"</span> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">] )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The operation returns the following results:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ \"full_name\" : \"Gary Sheffield\" }\n{ \"full_name\" : \"Nancy Walker\" }\n{ \"full_name\" : \"Peter Sumner\" }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"full_name"</span> <!-- -->: <span class="lg-highlight-string">"Gary Sheffield"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"full_name"</span> <!-- -->: <span class="lg-highlight-string">"Nancy Walker"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"full_name"</span> <!-- -->: <span class="lg-highlight-string">"Peter Sumner"</span> }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
<code class="leafygreen-ui-1l06pbn">
$replaceRoot
</code>
with a New Document Created from
<code class="leafygreen-ui-1l06pbn">
$$ROOT
</code>
and a Default Document
<a class="headerlink leafygreen-ui-1kepx47" href="#-replaceroot-with-a-new-document-created-from---root-and-a-default-document" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="-replaceroot-with-a-new-document-created-from---root-and-a-default-document">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Create a collection named
<code class="leafygreen-ui-1l06pbn">
contacts
</code>
with the following documents:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.contacts.insertMany( [\n { \"_id\" : 1, name: \"Fred\", email: \"[email protected]\" },\n { \"_id\" : 2, name: \"Frank N. Stine\", cell: \"012-345-9999\" },\n { \"_id\" : 3, name: \"Gren Dell\", home: \"987-654-3210\", email: \"[email protected]\" }\n] )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">contacts</span>.<span class="lg-highlight-title lg-highlight-function">insertMany</span>( <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">"Fred"</span>, <span class="lg-highlight-attr">email</span>: <span class="lg-highlight-string">"[email protected]"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">"Frank N. Stine"</span>, <span class="lg-highlight-attr">cell</span>: <span class="lg-highlight-string">"012-345-9999"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">3</span>, <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">"Gren Dell"</span>, <span class="lg-highlight-attr">home</span>: <span class="lg-highlight-string">"987-654-3210"</span>, <span class="lg-highlight-attr">email</span>: <span class="lg-highlight-string">"[email protected]"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">] )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The following operation uses
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-pipeline-pipe.-replaceRoot" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$replaceRoot
</code>
</span>
</a>
with
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/mergeObjects/#mongodb-expression-exp.-mergeObjects">
<code class="leafygreen-ui-1l06pbn">
$mergeObjects
</code>
</a>
to output current documents with default
values for missing fields:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.contacts.aggregate( [\n { $replaceRoot:\n { newRoot:\n { $mergeObjects:\n [\n { _id: \"\", name: \"\", email: \"\", cell: \"\", home: \"\" },\n \"$$ROOT\"\n ]\n }\n }\n }\n] )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">contacts</span>.<span class="lg-highlight-title lg-highlight-function">aggregate</span>( <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">$replaceRoot</span>:</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">newRoot</span>:</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">$mergeObjects</span>:</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-string">""</span>, <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">""</span>, <span class="lg-highlight-attr">email</span>: <span class="lg-highlight-string">""</span>, <span class="lg-highlight-attr">cell</span>: <span class="lg-highlight-string">""</span>, <span class="lg-highlight-attr">home</span>: <span class="lg-highlight-string">""</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"$$ROOT"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">] )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The aggregation returns the following documents:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n _id: 1,\n name: 'Fred',\n email: '[email protected]',\n cell: '',\n home: ''\n},\n{\n _id: 2,\n name: 'Frank N. Stine',\n email: '',\n cell: '012-345-9999',\n home: ''\n},\n{\n _id: 3,\n name: 'Gren Dell',\n email: '[email protected]',\n cell: '',\n home: '987-654-3210'\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">'Fred'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">email</span>: <span class="lg-highlight-string">'[email protected]'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">cell</span>: <span class="lg-highlight-string">''</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">home</span>: <span class="lg-highlight-string">''</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">2</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">'Frank N. Stine'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">email</span>: <span class="lg-highlight-string">''</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">cell</span>: <span class="lg-highlight-string">'012-345-9999'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">home</span>: <span class="lg-highlight-string">''</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">3</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">'Gren Dell'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">email</span>: <span class="lg-highlight-string">'[email protected]'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">cell</span>: <span class="lg-highlight-string">''</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">home</span>: <span class="lg-highlight-string">'987-654-3210'</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</section>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/command/mapReduce/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
mapReduce
<a class="headerlink leafygreen-ui-1kepx47" href="#mapreduce" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mapreduce">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#definition" target="_self">
<span>
Definition
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#compatibility" target="_self">
<span>
Compatibility
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#syntax" target="_self">
<span>
Syntax
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#command-fields" target="_self">
<span>
Command Fields
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#usage" target="_self">
<span>
Usage
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#required-access" target="_self">
<span>
Required Access
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#restrictions" target="_self">
<span>
Restrictions
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#map-reduce-examples" target="_self">
<span>
Map-Reduce Examples
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#output" target="_self">
<span>
Output
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#additional-information" target="_self">
<span>
Additional Information
</span>
</a>
</li>
</ul>
</div>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
Aggregation Pipeline as Alternative to Map-Reduce
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 5.0,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/map-reduce/#std-label-map-reduce">
map-reduce
</a>
is
deprecated:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Instead of
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/map-reduce/#std-label-map-reduce">
map-reduce
</a>
, you should use an
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/aggregation-pipeline/#std-label-aggregation-pipeline">
aggregation pipeline
</a>
. Aggregation
pipelines provide better performance and usability than map-reduce.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
You can rewrite map-reduce operations using
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation-pipeline/#std-label-aggregation-pipeline-operator-reference">
aggregation pipeline
stages
</a>
, such as
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/group/#mongodb-pipeline-pipe.-group">
<code class="leafygreen-ui-1l06pbn">
$group
</code>
</a>
,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/merge/#mongodb-pipeline-pipe.-merge">
<code class="leafygreen-ui-1l06pbn">
$merge
</code>
</a>
, and others.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For map-reduce operations that require custom functionality, you can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/accumulator/#mongodb-group-grp.-accumulator">
<code class="leafygreen-ui-1l06pbn">
$accumulator
</code>
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/function/#mongodb-expression-exp.-function">
<code class="leafygreen-ui-1l06pbn">
$function
</code>
</a>
aggregation
operators. You can use those
operators to define custom aggregation expressions in JavaScript.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
For examples of aggregation pipeline alternatives to map-reduce, see:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/map-reduce-to-aggregation-pipeline/">
Map-Reduce to Aggregation Pipeline
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/map-reduce-examples/">
Map-Reduce Examples
</a>
</p>
</li>
</ul>
</div>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Definition
<a class="headerlink leafygreen-ui-1kepx47" href="#definition" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="definition">
</div>
</a>
</h2>
<dl class="dbcommand">
<dt>
<code class="leafygreen-ui-1l06pbn">
mapReduce
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-dbcommand-dbcmd.mapReduce" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-dbcommand-dbcmd.mapReduce">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.mapReduce" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mapReduce
</code>
</span>
</a>
command allows you to run
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-map-reduce">
map-reduce
</a>
aggregation operations over a collection.
</p>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
In
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#std-program-mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
, this command can also be run through the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.mapReduce/#mongodb-method-db.collection.mapReduce">
<code class="leafygreen-ui-1l06pbn">
mapReduce()
</code>
</a>
helper method
<!-- -->
.
</p>
<p class="leafygreen-ui-1kp3ins">
Helper methods are convenient for
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#std-program-mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
users, but they may not
return the same level of information as database commands. In cases where
the convenience is not needed or the additional return fields are required,
use the database command.
</p>
</div>
</div>
</dd>
</dl>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Compatibility
<a class="headerlink leafygreen-ui-1kepx47" href="#compatibility" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="compatibility">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
This command is available in deployments hosted in the following environments:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas?tck=docs_server" target="_self">
<span>
MongoDB Atlas
</span>
</a>
: The fully
managed service for MongoDB deployments in the cloud
</p>
</li>
</ul>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
This command is not supported in M0, M2, and M5 clusters.
For more information, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/unsupported-commands/" target="_self">
<span>
Unsupported Commands
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/install-enterprise/#std-label-install-mdb-enterprise">
MongoDB Enterprise
</a>
: The
subscription-based, self-managed version of MongoDB
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/install-community/#std-label-install-mdb-community-edition">
MongoDB Community
</a>
: The
source-available, free-to-use, and self-managed version of MongoDB
</p>
</li>
</ul>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Syntax
<a class="headerlink leafygreen-ui-1kepx47" href="#syntax" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="syntax">
</div>
</a>
</h2>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
MongoDB ignores the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-cmd-mapreduce-verbose" target="_self">
<span>
verbose
</span>
</a>
option.
</p>
<p class="leafygreen-ui-1kp3ins">
Starting in version 4.2, MongoDB deprecates:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The map-reduce option to
<em>
create
</em>
a new sharded collection as well
as the use of the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-mapreduce-out-cmd" target="_self">
<span>
sharded
</span>
</a>
option for
map-reduce. To output to a sharded collection, create the sharded
collection first. MongoDB 4.2 also deprecates the replacement of
an existing sharded collection.
</p>
</li>
</ul>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The command has the following syntax:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.runCommand(\n {\n mapReduce: <string>,\n map: <string>,\n reduce: <string>,\n finalize: <string>,\n out: <output>,\n query: <document>,\n sort: <document>,\n limit: <number>,\n scope: <document>,\n jsMode: <boolean>,\n verbose: <boolean>,\n bypassDocumentValidation: <boolean>,\n collation: <document>,\n maxTimeMS: <integer>,\n writeConcern: <document>,\n comment: <any>\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">runCommand</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">mapReduce</span>: <<!-- -->string<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">map</span>: <!-- --><string or JavaScript>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> reduce: <string or JavaScript>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> finalize: <string or JavaScript>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> out: <output>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> query: <document>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> sort: <document>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> limit: <number>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> scope: <document>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> jsMode: <boolean>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> verbose: <boolean>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> bypassDocumentValidation: <boolean>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> collation: <document>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> maxTimeMS: <integer>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> writeConcern: <document>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> comment: <any></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Command Fields
<a class="headerlink leafygreen-ui-1kepx47" href="#command-fields" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="command-fields">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The command takes the following fields as arguments:
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:20%"/>
<col style="width:20%"/>
<col style="width:80%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Field
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Type
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-cmd-mapreduce-collection" target="_self">
<span>
mapReduce
</span>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
string
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-cmd-mapreduce-collection">
</span>
<p class="leafygreen-ui-1kp3ins">
The name of the collection on which you want to perform map-reduce.
This collection will be filtered using
<code class="leafygreen-ui-1l06pbn">
query
</code>
before being processed
by the
<code class="leafygreen-ui-1l06pbn">
map
</code>
function.
</p>
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/views/#std-label-views-landing-page">
Views
</a>
do not support map-reduce operations.
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-cmd-mapreduce-map" target="_self">
<span>
map
</span>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
JavaScript or String
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-cmd-mapreduce-map">
</span>
<p class="leafygreen-ui-1kp3ins">
A JavaScript function that associates or "maps" a
<code class="leafygreen-ui-1l06pbn">
value
</code>
with a
<code class="leafygreen-ui-1l06pbn">
key
</code>
and emits the
<code class="leafygreen-ui-1l06pbn">
key
</code>
and value
<code class="leafygreen-ui-1l06pbn">
pair
</code>
. You
can specify the function as
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/bson-types/#std-label-bson-types">
BSON type
</a>
Javascript (BSON Type 13) or String (BSON Type 2).
</p>
<p class="leafygreen-ui-1kp3ins">
For more information, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-mapreduce-map-cmd" target="_self">
<span>
Requirements for the map Function
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-cmd-mapreduce-reduce" target="_self">
<span>
reduce
</span>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
JavaScript or String
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-cmd-mapreduce-reduce">
</span>
<p class="leafygreen-ui-1kp3ins">
A JavaScript function that "reduces" to a single object all
the
<code class="leafygreen-ui-1l06pbn">
values
</code>
associated with a particular
<code class="leafygreen-ui-1l06pbn">
key
</code>
. You can
specify the function as BSON type JavaScript (BSON Type 13) or
String (BSON Type 2).
</p>
<p class="leafygreen-ui-1kp3ins">
For more information, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-mapreduce-reduce-cmd" target="_self">
<span>
Requirements for the reduce
Function
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-cmd-mapreduce-out" target="_self">
<span>
out
</span>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
string or document
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-cmd-mapreduce-out">
</span>
<p class="leafygreen-ui-1kp3ins">
Specifies where to output the result of the map-reduce operation. You
can either output to a collection or return the result inline. On a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-primary">
primary
</a>
member of a replica set you can output either to a collection
or inline, but on a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-secondary">
secondary
</a>
, only inline output is
possible.
</p>
<p class="leafygreen-ui-1kp3ins">
For more information, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-mapreduce-out-cmd" target="_self">
<span>
out Options
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-cmd-mapreduce-query" target="_self">
<span>
query
</span>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
document
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-cmd-mapreduce-query">
</span>
<p class="leafygreen-ui-1kp3ins">
Optional. Specifies the selection criteria using
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-projection-operators-top">
query operators
</a>
for determining the documents
input to the
<code class="leafygreen-ui-1l06pbn">
map
</code>
function.
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-cmd-mapreduce-sort" target="_self">
<span>
sort
</span>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
document
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-cmd-mapreduce-sort">
</span>
<p class="leafygreen-ui-1kp3ins">
Optional. Sorts the
<em>
input
</em>
documents. This option is useful for
optimization. For example, specify the sort key to be the same as
the emit key so that there are fewer reduce operations. The sort key
must be in an existing index for this collection.
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-cmd-mapreduce-limit" target="_self">
<span>
limit
</span>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
number
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-cmd-mapreduce-limit">
</span>
<p class="leafygreen-ui-1kp3ins">
Optional. Specifies a maximum number of documents for the input into the
<code class="leafygreen-ui-1l06pbn">
map
</code>
function.
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-cmd-mapreduce-finalize" target="_self">
<span>
finalize
</span>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
JavaScript or String
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-cmd-mapreduce-finalize">
</span>
<p class="leafygreen-ui-1kp3ins">
Optional. A JavaScript function that modifies the output after
the
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
function. You can specify the function as
BSON type JavaScript (BSON Type 13) or String (BSON Type 2).
</p>
<p class="leafygreen-ui-1kp3ins">
For more information, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-mapreduce-finalize-cmd" target="_self">
<span>
Requirements for the finalize
Function
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-cmd-mapreduce-scope" target="_self">
<span>
scope
</span>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
document
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-cmd-mapreduce-scope">
</span>
<p class="leafygreen-ui-1kp3ins">
Optional. Specifies global variables that are accessible in the
<code class="leafygreen-ui-1l06pbn">
map
</code>
,
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
and
<code class="leafygreen-ui-1l06pbn">
finalize
</code>
functions.
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-cmd-mapreduce-jsMode" target="_self">
<span>
jsMode
</span>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
boolean
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-cmd-mapreduce-jsMode">
</span>
<p class="leafygreen-ui-1kp3ins">
Optional. Specifies whether to convert intermediate data into BSON
format between the execution of the
<code class="leafygreen-ui-1l06pbn">
map
</code>
and
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
functions.
</p>
<p class="leafygreen-ui-1kp3ins">
Defaults to
<code class="leafygreen-ui-1l06pbn">
false
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
If
<code class="leafygreen-ui-1l06pbn">
false
</code>
:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Internally, MongoDB converts the JavaScript objects emitted
by the
<code class="leafygreen-ui-1l06pbn">
map
</code>
function to BSON objects. These BSON
objects are then converted back to JavaScript objects when
calling the
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
function.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The map-reduce operation places the intermediate BSON objects
in temporary, on-disk storage. This allows the map-reduce
operation to execute over arbitrarily large data sets.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
If
<code class="leafygreen-ui-1l06pbn">
true
</code>
:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Internally, the JavaScript objects emitted during
<code class="leafygreen-ui-1l06pbn">
map
</code>
function remain as JavaScript objects. There is no need to
convert the objects for the
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
function, which
can result in faster execution.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
You can only use
<code class="leafygreen-ui-1l06pbn">
jsMode
</code>
for result sets with fewer than
500,000 distinct
<code class="leafygreen-ui-1l06pbn">
key
</code>
arguments to the mapper's
<code class="leafygreen-ui-1l06pbn">
emit()
</code>
function.
</p>
</li>
</ul>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-cmd-mapreduce-verbose" target="_self">
<span>
verbose
</span>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
boolean
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-cmd-mapreduce-verbose">
</span>
<p class="leafygreen-ui-1kp3ins">
Optional. Specifies whether to include the
<code class="leafygreen-ui-1l06pbn">
timing
</code>
information in the
result information. Set
<code class="leafygreen-ui-1l06pbn">
verbose
</code>
to
<code class="leafygreen-ui-1l06pbn">
true
</code>
to include
the
<code class="leafygreen-ui-1l06pbn">
timing
</code>
information.
</p>
<p class="leafygreen-ui-1kp3ins">
Defaults to
<code class="leafygreen-ui-1l06pbn">
false
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
This option is ignored. The result
information always excludes the
<code class="leafygreen-ui-1l06pbn">
timing
</code>
information.
You can view timing information by running
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/explain/#mongodb-dbcommand-dbcmd.explain">
<code class="leafygreen-ui-1l06pbn">
explain
</code>
</a>
with the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.mapReduce" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mapReduce
</code>
</span>
</a>
command
in the
<code class="leafygreen-ui-1l06pbn">
"executionStats"
</code>
or
<code class="leafygreen-ui-1l06pbn">
"allPlansExecution"
</code>
<code class="leafygreen-ui-1l06pbn">
verbosity
</code>
modes.
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-cmd-mapreduce-bypassDocumentValidation" target="_self">
<span>
bypassDocumentValidation
</span>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
boolean
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-cmd-mapreduce-bypassDocumentValidation">
</span>
<p class="leafygreen-ui-1kp3ins">
Optional. Enables
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.mapReduce" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mapReduce
</code>
</span>
</a>
to bypass document validation
during the operation. This lets you insert documents that do not
meet the validation requirements.
</p>
<p class="leafygreen-ui-1kp3ins">
If the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-mapreduce-out-cmd" target="_self">
<span>
output option
</span>
</a>
is set to
<code class="leafygreen-ui-1l06pbn">
inline
</code>
, no
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/schema-validation/">
document validation
</a>
occurs. If the output goes to
a collection,
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.mapReduce" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mapReduce
</code>
</span>
</a>
observes any validation
rules which the collection has and does not insert any invalid
documents unless the
<code class="leafygreen-ui-1l06pbn">
bypassDocumentValidation
</code>
parameter is
set to true.
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-cmd-mapreduce-collation" target="_self">
<span>
collation
</span>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
document
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-cmd-mapreduce-collation">
</span>
<p class="leafygreen-ui-1kp3ins">
Optional.
</p>
<p class="leafygreen-ui-1kp3ins">
Specifies the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/collation/#std-label-collation">
collation
</a>
to use for the operation.
</p>
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/collation/#std-label-collation">
Collation
</a>
allows users to specify
language-specific rules for string comparison, such as rules for
lettercase and accent marks.
</p>
<p class="leafygreen-ui-1kp3ins">
The collation option has the following syntax:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"collation: {\n locale: <string>,\n caseLevel: <boolean>,\n caseFirst: <string>,\n strength: <int>,\n numericOrdering: <boolean>,\n alternate: <string>,\n maxVariable: <string>,\n backwards: <boolean>\n}"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light none leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">collation: {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> locale: <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> caseLevel: <boolean>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> caseFirst: <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> strength: <int>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> numericOrdering: <boolean>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> alternate: <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> maxVariable: <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> backwards: <boolean></td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
When specifying collation, the
<code class="leafygreen-ui-1l06pbn">
locale
</code>
field is mandatory; all
other collation fields are optional. For descriptions of the fields,
see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/collation/#std-label-collation-document-fields">
Collation Document
<!-- -->
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
If the collation is unspecified but the collection has a
default collation (see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.createCollection/#mongodb-method-db.createCollection">
<code class="leafygreen-ui-1l06pbn">
db.createCollection()
</code>
</a>
), the
operation uses the collation specified for the collection.
</p>
<p class="leafygreen-ui-1kp3ins">
If no collation is specified for the collection or for the
operations, MongoDB uses the simple binary comparison used in prior
versions for string comparisons.
</p>
<p class="leafygreen-ui-1kp3ins">
You cannot specify multiple collations for an operation. For
example, you cannot specify different collations per field, or if
performing a find with a sort, you cannot use one collation for the
find and another for the sort.
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
maxTimeMS
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
non-negative integer
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Optional.
</p>
<p class="leafygreen-ui-1kp3ins">
Specifies a time limit in milliseconds.
If you do not specify a value for
<code class="leafygreen-ui-1l06pbn">
maxTimeMS
</code>
, operations will not time out.
A value of
<code class="leafygreen-ui-1l06pbn">
0
</code>
explicitly specifies the default unbounded behavior.
</p>
<p class="leafygreen-ui-1kp3ins">
MongoDB terminates operations that exceed their allotted time limit
using the same mechanism as
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.killOp/#mongodb-method-db.killOp">
<code class="leafygreen-ui-1l06pbn">
db.killOp()
</code>
</a>
. MongoDB only
terminates an operation at one of its designated
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-interrupt-point">
interrupt
points
<!-- -->
.
</a>
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-cmd-mapreduce-writeConcern" target="_self">
<span>
writeConcern
</span>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
document
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-cmd-mapreduce-writeConcern">
</span>
<p class="leafygreen-ui-1kp3ins">
Optional. A document that expresses the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/write-concern/">
write concern
</a>
to use when outputting to a collection.
Omit to use the default write concern.
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
comment
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
any
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Optional. A user-provided comment to attach to this command. Once set, this
comment appears alongside records of this command in the following
locations:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/log-messages/#std-label-log-messages-ref">
mongod log messages
</a>
, in the
<code class="leafygreen-ui-1l06pbn">
attr.command.cursor.comment
</code>
field.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/database-profiler/#std-label-profiler">
Database profiler
</a>
output, in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/database-profiler/#mongodb-data-system.profile.command">
<code class="leafygreen-ui-1l06pbn">
command.comment
</code>
</a>
field.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/currentOp/#mongodb-dbcommand-dbcmd.currentOp">
<code class="leafygreen-ui-1l06pbn">
currentOp
</code>
</a>
output, in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/currentOp/#mongodb-data-currentOp.command">
<code class="leafygreen-ui-1l06pbn">
command.comment
</code>
</a>
field.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
A comment can be any valid
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/bson-types/#std-label-bson-types">
BSON type
</a>
(string, integer, object, array, etc).
</p>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-map-reduce-usage">
</span>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Usage
<a class="headerlink leafygreen-ui-1kepx47" href="#usage" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="usage">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The following is a prototype usage of the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.mapReduce" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mapReduce
</code>
</span>
</a>
command:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"var mapFunction = function() { ... };\nvar reduceFunction = function(key, values) { ... };\n\ndb.runCommand(\n {\n mapReduce: <input-collection>,\n map: mapFunction,\n reduce: reduceFunction,\n out: { merge: <output-collection> },\n query: <query>\n }\n )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> mapFunction <!-- -->= <span class="lg-highlight-keyword lg-highlight-function">function</span>(<!-- -->)<!-- --> <!-- -->{ <!-- -->...<!-- --> }<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> reduceFunction <!-- -->= <span class="lg-highlight-keyword lg-highlight-function">function</span>(<span class="lg-highlight-params">key, values</span>)<!-- --> <!-- -->{ <!-- -->...<!-- --> }<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">runCommand</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">mapReduce</span>: <<!-- -->input<!-- -->-<!-- -->collection<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">map</span>: <!-- -->mapFunction<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">reduce</span>: <!-- -->reduceFunction<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">out</span>: <!-- -->{ <span class="lg-highlight-attr">merge</span>: <<!-- -->output<!-- -->-<!-- -->collection<!-- -->> <!-- -->}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">query</span>: <<!-- -->query<!-- -->></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->}</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> )</td></tr></tbody></table></code></pre>
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</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
JavaScript in MongoDB
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Although
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.mapReduce" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mapReduce
</code>
</span>
</a>
uses JavaScript, most
interactions with MongoDB do not use JavaScript but use an
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/drivers/" target="_self">
<span>
idiomatic driver
</span>
</a>
in the language
of the interacting application.
</p>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-mapreduce-map-cmd">
</span>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Requirements for the
<code class="leafygreen-ui-1l06pbn">
map
</code>
Function
<a class="headerlink leafygreen-ui-1kepx47" href="#requirements-for-the-map-function" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="requirements-for-the-map-function">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
map
</code>
function is responsible for transforming each input document into
zero or more documents. It can access the variables defined in the
<code class="leafygreen-ui-1l06pbn">
scope
</code>
parameter, and has the following prototype:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"function() {\n ...\n emit(key, value);\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword lg-highlight-function">function</span>(<!-- -->)<!-- --> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-function">emit</span>(<!-- -->key<!-- -->, <!-- -->value)<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
map
</code>
function has the following requirements:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
In the
<code class="leafygreen-ui-1l06pbn">
map
</code>
function, reference the current document as
<code class="leafygreen-ui-1l06pbn">
this
</code>
within the function.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
map
</code>
function should
<em>
not
</em>
access the database for any reason.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
map
</code>
function should be pure, or have
<em>
no
</em>
impact outside of
the function (i.e. side effects.)
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
map
</code>
function may optionally call
<code class="leafygreen-ui-1l06pbn">
emit(key,value)
</code>
any number of
times to create an output document associating
<code class="leafygreen-ui-1l06pbn">
key
</code>
with
<code class="leafygreen-ui-1l06pbn">
value
</code>
.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
The following
<code class="leafygreen-ui-1l06pbn">
map
</code>
function will call
<code class="leafygreen-ui-1l06pbn">
emit(key,value)
</code>
either
0 or 1 times depending on the value of the input document's
<code class="leafygreen-ui-1l06pbn">
status
</code>
field:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"function() {\n if (this.status == 'A')\n emit(this.cust_id, 1);\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword lg-highlight-function">function</span>(<!-- -->)<!-- --> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">if</span> <!-- -->(<span class="lg-highlight-variable lg-highlight-language">this</span>.<span class="lg-highlight-property">status</span> <!-- -->== <span class="lg-highlight-string">'A'</span>)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-function">emit</span>(<span class="lg-highlight-variable lg-highlight-language">this</span>.<span class="lg-highlight-property">cust_id</span>, <span class="lg-highlight-number">1</span>)<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The following
<code class="leafygreen-ui-1l06pbn">
map
</code>
function may call
<code class="leafygreen-ui-1l06pbn">
emit(key,value)
</code>
multiple times depending on the number of elements in the input
document's
<code class="leafygreen-ui-1l06pbn">
items
</code>
field:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"function() {\n this.items.forEach(function(item){ emit(item.sku, 1); });\n}","programmingLanguage":"JavaScript"}
</script>
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<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword lg-highlight-function">function</span>(<!-- -->)<!-- --> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-variable lg-highlight-language">this</span>.<span class="lg-highlight-property">items</span>.<span class="lg-highlight-title lg-highlight-function">forEach</span>(<span class="lg-highlight-keyword lg-highlight-function">function</span>(<span class="lg-highlight-params">item</span>)<!-- -->{ <span class="lg-highlight-title lg-highlight-function">emit</span>(<!-- -->item.<span class="lg-highlight-property">sku</span>, <span class="lg-highlight-number">1</span>)<!-- -->; <!-- -->})<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</div>
</section>
<span class="leafygreen-ui-1qnjd6d" id="std-label-mapreduce-reduce-cmd">
</span>
<section>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Requirements for the
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
Function
<a class="headerlink leafygreen-ui-1kepx47" href="#requirements-for-the-reduce-function" title="Permalink to this heading">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
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<div class="css-1btu0w3 evvkmar0" id="requirements-for-the-reduce-function">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
function has the following prototype:
</p>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword lg-highlight-function">function</span>(<span class="lg-highlight-params">key, values</span>)<!-- --> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">return</span> <!-- -->result<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
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</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
function exhibits the following behaviors:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
function should
<em>
not
</em>
access the database,
even to perform read operations.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
function should
<em>
not
</em>
affect the outside
system.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
MongoDB can invoke the
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
function more than once for the
same key. In this case, the previous output from the
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
function for that key will become one of the input values to the next
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
function invocation for that key.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
function can access the variables defined
in the
<code class="leafygreen-ui-1l06pbn">
scope
</code>
parameter.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The inputs to
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
must not be larger than half of MongoDB's
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/limits/#std-label-limit-bson-document-size">
maximum BSON document size
</a>
. This
requirement may be violated when large documents are returned and then
joined together in subsequent
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
steps.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
Because it is possible to invoke the
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
function
more than once for the same key, the following
properties need to be true:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
the
<em>
type
</em>
of the return object must be
<strong>
identical
</strong>
to the type of the
<code class="leafygreen-ui-1l06pbn">
value
</code>
emitted by the
<code class="leafygreen-ui-1l06pbn">
map
</code>
function.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
the
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
function must be
<em>
associative
</em>
. The following statement must be
true:
</p>
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{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"reduce(key, [ C, reduce(key, [ A, B ]) ] ) == reduce( key, [ C, A, B ] )","programmingLanguage":"JavaScript"}
</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">reduce</span>(<!-- -->key<!-- -->, <!-- -->[ <!-- -->C<!-- -->, <span class="lg-highlight-title lg-highlight-function">reduce</span>(<!-- -->key<!-- -->, <!-- -->[ <!-- -->A<!-- -->, <!-- -->B ]) ] ) <!-- -->== <span class="lg-highlight-title lg-highlight-function">reduce</span>( <!-- -->key<!-- -->, <!-- -->[ <!-- -->C<!-- -->, <!-- -->A<!-- -->, <!-- -->B ] )</td></tr></tbody></table></code></pre>
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</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
the
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
function must be
<em>
idempotent
</em>
. Ensure
that the following statement is true:
</p>
<script class="structured_data" type="application/ld+json">
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</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">reduce</span>( <!-- -->key<!-- -->, <!-- -->[ <span class="lg-highlight-title lg-highlight-function">reduce</span>(<!-- -->key<!-- -->, <!-- -->valuesArray) ] ) <!-- -->== <span class="lg-highlight-title lg-highlight-function">reduce</span>( <!-- -->key<!-- -->, <!-- -->valuesArray )</td></tr></tbody></table></code></pre>
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</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
the
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
function should be
<em>
commutative
</em>
: that is, the order of the
elements in the
<code class="leafygreen-ui-1l06pbn">
valuesArray
</code>
should not affect the output of the
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
function, so that the following statement is true:
</p>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">reduce</span>( <!-- -->key<!-- -->, <!-- -->[ <!-- -->A<!-- -->, <!-- -->B ] ) <!-- -->== <span class="lg-highlight-title lg-highlight-function">reduce</span>( <!-- -->key<!-- -->, <!-- -->[ <!-- -->B<!-- -->, <!-- -->A ] )</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
</ul>
</section>
<span class="leafygreen-ui-1qnjd6d" id="std-label-mapreduce-finalize-cmd">
</span>
<section>
<section>
</section>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Requirements for the
<code class="leafygreen-ui-1l06pbn">
finalize
</code>
Function
<a class="headerlink leafygreen-ui-1kepx47" href="#requirements-for-the-finalize-function" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="requirements-for-the-finalize-function">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
finalize
</code>
function has the following prototype:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"function(key, reducedValue) {\n ...\n return modifiedObject;\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword lg-highlight-function">function</span>(<span class="lg-highlight-params">key, reducedValue</span>)<!-- --> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">return</span> <!-- -->modifiedObject<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
finalize
</code>
function receives as its arguments a
<code class="leafygreen-ui-1l06pbn">
key
</code>
value and the
<code class="leafygreen-ui-1l06pbn">
reducedValue
</code>
from the
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
function. Be
aware that:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
finalize
</code>
function should
<em>
not
</em>
access the database for
any reason.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
finalize
</code>
function should be pure, or have
<em>
no
</em>
impact
outside of the function (i.e. side effects.)
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
finalize
</code>
function can access the variables defined in
the
<code class="leafygreen-ui-1l06pbn">
scope
</code>
parameter.
</p>
</li>
</ul>
</section>
<span class="leafygreen-ui-1qnjd6d" id="std-label-mapreduce-out-cmd">
</span>
<section>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
<code class="leafygreen-ui-1l06pbn">
out
</code>
Options
<a class="headerlink leafygreen-ui-1kepx47" href="#out-options" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="out-options">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
You can specify the following options for the
<code class="leafygreen-ui-1l06pbn">
out
</code>
parameter:
</p>
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Output to a Collection
<a class="headerlink leafygreen-ui-1kepx47" href="#output-to-a-collection" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="output-to-a-collection">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
This option outputs to a new collection, and is not available on secondary
members of replica sets.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"out: <collectionname>","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">out</span>: <<!-- -->collectionName<!-- -->></td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</section>
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Output to a Collection with an Action
<a class="headerlink leafygreen-ui-1kepx47" href="#output-to-a-collection-with-an-action" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="output-to-a-collection-with-an-action">
</div>
</a>
</h4>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Starting in version 4.2, MongoDB deprecates:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The map-reduce option to
<em>
create
</em>
a new sharded collection as well
as the use of the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-mapreduce-out-cmd" target="_self">
<span>
sharded
</span>
</a>
option for
map-reduce. To output to a sharded collection, create the sharded
collection first. MongoDB 4.2 also deprecates the replacement of
an existing sharded collection.
</p>
</li>
</ul>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
This option is only available when passing a collection that
already exists to
<code class="leafygreen-ui-1l06pbn">
out
</code>
. It is not available
on secondary members of replica sets.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"out: { <action>: <collectionname>\n [, db: <dbname>]\n [, sharded: <boolean> ] }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">out</span>: <!-- -->{ <<!-- -->action<!-- -->><!-- -->: <<!-- -->collectionName<!-- -->></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->[<!-- -->,<!-- --> <span class="lg-highlight-attr">db</span>: <<!-- -->dbName<!-- -->><!-- -->]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->[<!-- -->,<!-- --> <span class="lg-highlight-attr">sharded</span>: <<!-- -->boolean<!-- -->> <!-- -->] }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
When you output to a collection with an action, the
<code class="leafygreen-ui-1l06pbn">
out
</code>
has the
following parameters:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
<action>
</code>
: Specify one of the following actions:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
replace
</code>
</p>
<p class="leafygreen-ui-1kp3ins">
Replace the contents of the
<code class="leafygreen-ui-1l06pbn">
<collectionName>
</code>
if the
collection with the
<code class="leafygreen-ui-1l06pbn">
<collectionName>
</code>
exists.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
merge
</code>
</p>
<p class="leafygreen-ui-1kp3ins">
Merge the new result with the existing result if the
output collection already exists. If an existing document
has the same key as the new result,
<em>
overwrite
</em>
that
existing document.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
</p>
<p class="leafygreen-ui-1kp3ins">
Merge the new result with the existing result if the
output collection already exists. If an existing document
has the same key as the new result, apply the
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
function to both the new and the existing documents and
overwrite the existing document with the result.
</p>
</li>
</ul>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
db
</code>
:
</p>
<p class="leafygreen-ui-1kp3ins">
Optional. The name of the database that you want the map-reduce
operation to write its output. By default this will be the same
database as the input collection.
</p>
</li>
</ul>
</section>
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Output Inline
<a class="headerlink leafygreen-ui-1kepx47" href="#output-inline" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="output-inline">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
Perform the map-reduce operation in memory and return the result. This
option is the only available option for
<code class="leafygreen-ui-1l06pbn">
out
</code>
on secondary members of
replica sets.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"out: { inline: 1 }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">out</span>: <!-- -->{ <span class="lg-highlight-attr">inline</span>: <span class="lg-highlight-number">1</span> }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The result must fit within the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/limits/#std-label-limit-bson-document-size">
maximum size of a BSON document
<!-- -->
.
</a>
</p>
</section>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Required Access
<a class="headerlink leafygreen-ui-1kepx47" href="#required-access" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="required-access">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
If your MongoDB deployment enforces authentication, the user executing
the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.mapReduce" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mapReduce
</code>
</span>
</a>
command must possess the following
privilege actions:
</p>
<p class="leafygreen-ui-1kp3ins">
Map-reduce with
<code class="leafygreen-ui-1l06pbn">
{out : inline}
</code>
output option:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/privilege-actions/#mongodb-authaction-find">
<code class="leafygreen-ui-1l06pbn">
find
</code>
</a>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
Map-reduce with the
<code class="leafygreen-ui-1l06pbn">
replace
</code>
action when
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.mapReduce/#std-label-mapreduce-out-mtd">
outputting to a
collection
<!-- -->
:
</a>
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/privilege-actions/#mongodb-authaction-find">
<code class="leafygreen-ui-1l06pbn">
find
</code>
,
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/privilege-actions/#mongodb-authaction-insert">
<code class="leafygreen-ui-1l06pbn">
insert
</code>
,
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/privilege-actions/#mongodb-authaction-remove">
<code class="leafygreen-ui-1l06pbn">
remove
</code>
</a>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
Map-reduce with the
<code class="leafygreen-ui-1l06pbn">
merge
</code>
or
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
actions when
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.mapReduce/#std-label-mapreduce-out-mtd">
outputting to a collection
<!-- -->
:
</a>
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/privilege-actions/#mongodb-authaction-find">
<code class="leafygreen-ui-1l06pbn">
find
</code>
,
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/privilege-actions/#mongodb-authaction-insert">
<code class="leafygreen-ui-1l06pbn">
insert
</code>
,
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/privilege-actions/#mongodb-authaction-update">
<code class="leafygreen-ui-1l06pbn">
update
</code>
</a>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/built-in-roles/#mongodb-authrole-readWrite">
<code class="leafygreen-ui-1l06pbn">
readWrite
</code>
</a>
built-in role provides the necessary
permissions to perform map-reduce aggregation.
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Restrictions
<a class="headerlink leafygreen-ui-1kepx47" href="#restrictions" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="restrictions">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.mapReduce" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mapReduce
</code>
</span>
</a>
command no longer supports
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/read-concern/#std-label-afterClusterTime">
afterClusterTime
</a>
. As such,
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.mapReduce" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mapReduce
</code>
</span>
</a>
cannot be
associated with
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/read-isolation-consistency-recency/#std-label-causal-consistency">
causally consistent sessions
<!-- -->
.
</a>
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Map-Reduce Examples
<a class="headerlink leafygreen-ui-1kepx47" href="#map-reduce-examples" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="map-reduce-examples">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
In
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
, the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.mapReduce/#mongodb-method-db.collection.mapReduce">
<code class="leafygreen-ui-1l06pbn">
db.collection.mapReduce()
</code>
</a>
method is a wrapper around the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.mapReduce" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mapReduce
</code>
</span>
</a>
command. The
following examples use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.mapReduce/#mongodb-method-db.collection.mapReduce">
<code class="leafygreen-ui-1l06pbn">
db.collection.mapReduce()
</code>
</a>
method:
</p>
<section>
<p class="leafygreen-ui-1kp3ins">
The examples in this section include aggregation pipeline alternatives
without custom aggregation expressions. For alternatives that use custom
expressions, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/map-reduce-to-aggregation-pipeline/#std-label-mr-to-agg-examples">
Map-Reduce to Aggregation Pipeline Translation
Examples
<!-- -->
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
Create a sample collection
<code class="leafygreen-ui-1l06pbn">
orders
</code>
with these documents:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.orders.insertMany([\n { _id: 1, cust_id: \"Ant O. Knee\", ord_date: new Date(\"2020-03-01\"), price: 25, items: [ { sku: \"oranges\", qty: 5, price: 2.5 }, { sku: \"apples\", qty: 5, price: 2.5 } ], status: \"A\" },\n { _id: 2, cust_id: \"Ant O. Knee\", ord_date: new Date(\"2020-03-08\"), price: 70, items: [ { sku: \"oranges\", qty: 8, price: 2.5 }, { sku: \"chocolates\", qty: 5, price: 10 } ], status: \"A\" },\n { _id: 3, cust_id: \"Busby Bee\", ord_date: new Date(\"2020-03-08\"), price: 50, items: [ { sku: \"oranges\", qty: 10, price: 2.5 }, { sku: \"pears\", qty: 10, price: 2.5 } ], status: \"A\" },\n { _id: 4, cust_id: \"Busby Bee\", ord_date: new Date(\"2020-03-18\"), price: 25, items: [ { sku: \"oranges\", qty: 10, price: 2.5 } ], status: \"A\" },\n { _id: 5, cust_id: \"Busby Bee\", ord_date: new Date(\"2020-03-19\"), price: 50, items: [ { sku: \"chocolates\", qty: 5, price: 10 } ], status: \"A\"},\n { _id: 6, cust_id: \"Cam Elot\", ord_date: new Date(\"2020-03-19\"), price: 35, items: [ { sku: \"carrots\", qty: 10, price: 1.0 }, { sku: \"apples\", qty: 10, price: 2.5 } ], status: \"A\" },\n { _id: 7, cust_id: \"Cam Elot\", ord_date: new Date(\"2020-03-20\"), price: 25, items: [ { sku: \"oranges\", qty: 10, price: 2.5 } ], status: \"A\" },\n { _id: 8, cust_id: \"Don Quis\", ord_date: new Date(\"2020-03-20\"), price: 75, items: [ { sku: \"chocolates\", qty: 5, price: 10 }, { sku: \"apples\", qty: 10, price: 2.5 } ], status: \"A\" },\n { _id: 9, cust_id: \"Don Quis\", ord_date: new Date(\"2020-03-20\"), price: 55, items: [ { sku: \"carrots\", qty: 5, price: 1.0 }, { sku: \"apples\", qty: 10, price: 2.5 }, { sku: \"oranges\", qty: 10, price: 2.5 } ], status: \"A\" },\n { _id: 10, cust_id: \"Don Quis\", ord_date: new Date(\"2020-03-23\"), price: 25, items: [ { sku: \"oranges\", qty: 10, price: 2.5 } ], status: \"A\" }\n])","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">orders</span>.<span class="lg-highlight-title lg-highlight-function">insertMany</span>(<!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-attr">cust_id</span>: <span class="lg-highlight-string">"Ant O. Knee"</span>, <span class="lg-highlight-attr">ord_date</span>: <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Date</span>(<span class="lg-highlight-string">"2020-03-01"</span>)<!-- -->, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">25</span>, <span class="lg-highlight-attr">items</span>: <!-- -->[ <!-- -->{ <span class="lg-highlight-attr">sku</span>: <span class="lg-highlight-string">"oranges"</span>, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">2.5</span> }<!-- -->, <!-- -->{ <span class="lg-highlight-attr">sku</span>: <span class="lg-highlight-string">"apples"</span>, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">2.5</span> } ]<!-- -->, <span class="lg-highlight-attr">status</span>: <span class="lg-highlight-string">"A"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-attr">cust_id</span>: <span class="lg-highlight-string">"Ant O. Knee"</span>, <span class="lg-highlight-attr">ord_date</span>: <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Date</span>(<span class="lg-highlight-string">"2020-03-08"</span>)<!-- -->, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">70</span>, <span class="lg-highlight-attr">items</span>: <!-- -->[ <!-- -->{ <span class="lg-highlight-attr">sku</span>: <span class="lg-highlight-string">"oranges"</span>, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">8</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">2.5</span> }<!-- -->, <!-- -->{ <span class="lg-highlight-attr">sku</span>: <span class="lg-highlight-string">"chocolates"</span>, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">10</span> } ]<!-- -->, <span class="lg-highlight-attr">status</span>: <span class="lg-highlight-string">"A"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">3</span>, <span class="lg-highlight-attr">cust_id</span>: <span class="lg-highlight-string">"Busby Bee"</span>, <span class="lg-highlight-attr">ord_date</span>: <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Date</span>(<span class="lg-highlight-string">"2020-03-08"</span>)<!-- -->, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">50</span>, <span class="lg-highlight-attr">items</span>: <!-- -->[ <!-- -->{ <span class="lg-highlight-attr">sku</span>: <span class="lg-highlight-string">"oranges"</span>, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">2.5</span> }<!-- -->, <!-- -->{ <span class="lg-highlight-attr">sku</span>: <span class="lg-highlight-string">"pears"</span>, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">2.5</span> } ]<!-- -->, <span class="lg-highlight-attr">status</span>: <span class="lg-highlight-string">"A"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">4</span>, <span class="lg-highlight-attr">cust_id</span>: <span class="lg-highlight-string">"Busby Bee"</span>, <span class="lg-highlight-attr">ord_date</span>: <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Date</span>(<span class="lg-highlight-string">"2020-03-18"</span>)<!-- -->, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">25</span>, <span class="lg-highlight-attr">items</span>: <!-- -->[ <!-- -->{ <span class="lg-highlight-attr">sku</span>: <span class="lg-highlight-string">"oranges"</span>, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">2.5</span> } ]<!-- -->, <span class="lg-highlight-attr">status</span>: <span class="lg-highlight-string">"A"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-attr">cust_id</span>: <span class="lg-highlight-string">"Busby Bee"</span>, <span class="lg-highlight-attr">ord_date</span>: <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Date</span>(<span class="lg-highlight-string">"2020-03-19"</span>)<!-- -->, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">50</span>, <span class="lg-highlight-attr">items</span>: <!-- -->[ <!-- -->{ <span class="lg-highlight-attr">sku</span>: <span class="lg-highlight-string">"chocolates"</span>, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">10</span> } ]<!-- -->, <span class="lg-highlight-attr">status</span>: <span class="lg-highlight-string">"A"</span>}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">6</span>, <span class="lg-highlight-attr">cust_id</span>: <span class="lg-highlight-string">"Cam Elot"</span>, <span class="lg-highlight-attr">ord_date</span>: <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Date</span>(<span class="lg-highlight-string">"2020-03-19"</span>)<!-- -->, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">35</span>, <span class="lg-highlight-attr">items</span>: <!-- -->[ <!-- -->{ <span class="lg-highlight-attr">sku</span>: <span class="lg-highlight-string">"carrots"</span>, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">1.0</span> }<!-- -->, <!-- -->{ <span class="lg-highlight-attr">sku</span>: <span class="lg-highlight-string">"apples"</span>, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">2.5</span> } ]<!-- -->, <span class="lg-highlight-attr">status</span>: <span class="lg-highlight-string">"A"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">7</span>, <span class="lg-highlight-attr">cust_id</span>: <span class="lg-highlight-string">"Cam Elot"</span>, <span class="lg-highlight-attr">ord_date</span>: <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Date</span>(<span class="lg-highlight-string">"2020-03-20"</span>)<!-- -->, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">25</span>, <span class="lg-highlight-attr">items</span>: <!-- -->[ <!-- -->{ <span class="lg-highlight-attr">sku</span>: <span class="lg-highlight-string">"oranges"</span>, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">2.5</span> } ]<!-- -->, <span class="lg-highlight-attr">status</span>: <span class="lg-highlight-string">"A"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">8</span>, <span class="lg-highlight-attr">cust_id</span>: <span class="lg-highlight-string">"Don Quis"</span>, <span class="lg-highlight-attr">ord_date</span>: <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Date</span>(<span class="lg-highlight-string">"2020-03-20"</span>)<!-- -->, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">75</span>, <span class="lg-highlight-attr">items</span>: <!-- -->[ <!-- -->{ <span class="lg-highlight-attr">sku</span>: <span class="lg-highlight-string">"chocolates"</span>, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">10</span> }<!-- -->, <!-- -->{ <span class="lg-highlight-attr">sku</span>: <span class="lg-highlight-string">"apples"</span>, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">2.5</span> } ]<!-- -->, <span class="lg-highlight-attr">status</span>: <span class="lg-highlight-string">"A"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">9</span>, <span class="lg-highlight-attr">cust_id</span>: <span class="lg-highlight-string">"Don Quis"</span>, <span class="lg-highlight-attr">ord_date</span>: <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Date</span>(<span class="lg-highlight-string">"2020-03-20"</span>)<!-- -->, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">55</span>, <span class="lg-highlight-attr">items</span>: <!-- -->[ <!-- -->{ <span class="lg-highlight-attr">sku</span>: <span class="lg-highlight-string">"carrots"</span>, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">1.0</span> }<!-- -->, <!-- -->{ <span class="lg-highlight-attr">sku</span>: <span class="lg-highlight-string">"apples"</span>, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">2.5</span> }<!-- -->, <!-- -->{ <span class="lg-highlight-attr">sku</span>: <span class="lg-highlight-string">"oranges"</span>, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">2.5</span> } ]<!-- -->, <span class="lg-highlight-attr">status</span>: <span class="lg-highlight-string">"A"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-attr">cust_id</span>: <span class="lg-highlight-string">"Don Quis"</span>, <span class="lg-highlight-attr">ord_date</span>: <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Date</span>(<span class="lg-highlight-string">"2020-03-23"</span>)<!-- -->, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">25</span>, <span class="lg-highlight-attr">items</span>: <!-- -->[ <!-- -->{ <span class="lg-highlight-attr">sku</span>: <span class="lg-highlight-string">"oranges"</span>, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">2.5</span> } ]<!-- -->, <span class="lg-highlight-attr">status</span>: <span class="lg-highlight-string">"A"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">])</td></tr></tbody></table></code></pre>
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<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Return the Total Price Per Customer
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</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
Perform the map-reduce operation on the
<code class="leafygreen-ui-1l06pbn">
orders
</code>
collection to group
by the
<code class="leafygreen-ui-1l06pbn">
cust_id
</code>
, and calculate the sum of the
<code class="leafygreen-ui-1l06pbn">
price
</code>
for each
<code class="leafygreen-ui-1l06pbn">
cust_id
</code>
:
</p>
<ol class="leafygreen-ui-rioki0" type="1">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Define the map function to process each input document:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
In the function,
<code class="leafygreen-ui-1l06pbn">
this
</code>
refers to the document that the
map-reduce operation is processing.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The function maps the
<code class="leafygreen-ui-1l06pbn">
price
</code>
to the
<code class="leafygreen-ui-1l06pbn">
cust_id
</code>
for each
document and emits the
<code class="leafygreen-ui-1l06pbn">
cust_id
</code>
and
<code class="leafygreen-ui-1l06pbn">
price
</code>
.
</p>
</li>
</ul>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"var mapFunction1 = function() {\n emit(this.cust_id, this.price);\n};","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> mapFunction1 <!-- -->= <span class="lg-highlight-keyword lg-highlight-function">function</span>(<!-- -->)<!-- --> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-function">emit</span>(<span class="lg-highlight-variable lg-highlight-language">this</span>.<span class="lg-highlight-property">cust_id</span>, <span class="lg-highlight-variable lg-highlight-language">this</span>.<span class="lg-highlight-property">price</span>)<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}<!-- -->;</td></tr></tbody></table></code></pre>
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</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Define the corresponding reduce function with two arguments
<code class="leafygreen-ui-1l06pbn">
keyCustId
</code>
and
<code class="leafygreen-ui-1l06pbn">
valuesPrices
</code>
:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
valuesPrices
</code>
is an array whose elements are the
<code class="leafygreen-ui-1l06pbn">
price
</code>
values emitted by the map function and grouped by
<code class="leafygreen-ui-1l06pbn">
keyCustId
</code>
.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The function reduces the
<code class="leafygreen-ui-1l06pbn">
valuesPrice
</code>
array to the
sum of its elements.
</p>
</li>
</ul>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"var reduceFunction1 = function(keyCustId, valuesPrices) {\n return Array.sum(valuesPrices);\n};","programmingLanguage":"JavaScript"}
</script>
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<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> reduceFunction1 <!-- -->= <span class="lg-highlight-keyword lg-highlight-function">function</span>(<span class="lg-highlight-params">keyCustId, valuesPrices</span>)<!-- --> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">return</span> <span class="lg-highlight-title lg-highlight-class">Array</span>.<span class="lg-highlight-title lg-highlight-function">sum</span>(<!-- -->valuesPrices)<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}<!-- -->;</td></tr></tbody></table></code></pre>
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Perform map-reduce on all documents in the
<code class="leafygreen-ui-1l06pbn">
orders
</code>
collection
using the
<code class="leafygreen-ui-1l06pbn">
mapFunction1
</code>
map function and the
<code class="leafygreen-ui-1l06pbn">
reduceFunction1
</code>
reduce function:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.orders.mapReduce(\n mapFunction1,\n reduceFunction1,\n { out: \"map_reduce_example\" }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">orders</span>.<span class="lg-highlight-title lg-highlight-function">mapReduce</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->mapFunction1<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->reduceFunction1<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">out</span>: <span class="lg-highlight-string">"map_reduce_example"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
This operation outputs the results to a collection named
<code class="leafygreen-ui-1l06pbn">
map_reduce_example
</code>
. If the
<code class="leafygreen-ui-1l06pbn">
map_reduce_example
</code>
collection
already exists, the operation will replace the contents with the
results of this map-reduce operation.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Query the
<code class="leafygreen-ui-1l06pbn">
map_reduce_example
</code>
collection to verify the results:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.map_reduce_example.find().sort( { _id: 1 } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">map_reduce_example</span>.<span class="lg-highlight-title lg-highlight-function">find</span>(<!-- -->).<span class="lg-highlight-title lg-highlight-function">sort</span>( <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">1</span> } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The operation returns these documents:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ \"_id\" : \"Ant O. Knee\", \"value\" : 95 }\n{ \"_id\" : \"Busby Bee\", \"value\" : 125 }\n{ \"_id\" : \"Cam Elot\", \"value\" : 60 }\n{ \"_id\" : \"Don Quis\", \"value\" : 155 }","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"Ant O. Knee"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <span class="lg-highlight-number">95</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"Busby Bee"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <span class="lg-highlight-number">125</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"Cam Elot"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <span class="lg-highlight-number">60</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"Don Quis"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <span class="lg-highlight-number">155</span> }</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</li>
</ol>
<section>
<h5 class="contains-headerlink leafygreen-ui-1vzlt5f">
Aggregation Alternative
<a class="headerlink leafygreen-ui-1kepx47" href="#aggregation-alternative" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="aggregation-alternative">
</div>
</a>
</h5>
<p class="leafygreen-ui-1kp3ins">
Using the available aggregation pipeline operators, you can rewrite
the map-reduce operation without defining custom functions:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.orders.aggregate([\n { $group: { _id: \"$cust_id\", value: { $sum: \"$price\" } } },\n { $out: \"agg_alternative_1\" }\n])","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">orders</span>.<span class="lg-highlight-title lg-highlight-function">aggregate</span>(<!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">$group</span>: <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-string">"$cust_id"</span>, <span class="lg-highlight-attr">value</span>: <!-- -->{ <span class="lg-highlight-attr">$sum</span>: <span class="lg-highlight-string">"$price"</span> } } }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">$out</span>: <span class="lg-highlight-string">"agg_alternative_1"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">])</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<ol class="leafygreen-ui-rioki0" type="1">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/group/#mongodb-pipeline-pipe.-group">
<code class="leafygreen-ui-1l06pbn">
$group
</code>
</a>
stage groups by the
<code class="leafygreen-ui-1l06pbn">
cust_id
</code>
and
calculates the
<code class="leafygreen-ui-1l06pbn">
value
</code>
field (See also
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/sum/#mongodb-group-grp.-sum">
<code class="leafygreen-ui-1l06pbn">
$sum
</code>
</a>
). The
<code class="leafygreen-ui-1l06pbn">
value
</code>
field contains the total
<code class="leafygreen-ui-1l06pbn">
price
</code>
for each
<code class="leafygreen-ui-1l06pbn">
cust_id
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
The stage output the following documents to the next stage:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ \"_id\" : \"Don Quis\", \"value\" : 155 }\n{ \"_id\" : \"Ant O. Knee\", \"value\" : 95 }\n{ \"_id\" : \"Cam Elot\", \"value\" : 60 }\n{ \"_id\" : \"Busby Bee\", \"value\" : 125 }","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"Don Quis"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <span class="lg-highlight-number">155</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"Ant O. Knee"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <span class="lg-highlight-number">95</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"Cam Elot"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <span class="lg-highlight-number">60</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"Busby Bee"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <span class="lg-highlight-number">125</span> }</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Then, the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/out/#mongodb-pipeline-pipe.-out">
<code class="leafygreen-ui-1l06pbn">
$out
</code>
</a>
writes the output to the collection
<code class="leafygreen-ui-1l06pbn">
agg_alternative_1
</code>
. Alternatively, you could use
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/merge/#mongodb-pipeline-pipe.-merge">
<code class="leafygreen-ui-1l06pbn">
$merge
</code>
</a>
instead of
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/out/#mongodb-pipeline-pipe.-out">
<code class="leafygreen-ui-1l06pbn">
$out
</code>
.
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Query the
<code class="leafygreen-ui-1l06pbn">
agg_alternative_1
</code>
collection to verify the results:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.agg_alternative_1.find().sort( { _id: 1 } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">agg_alternative_1</span>.<span class="lg-highlight-title lg-highlight-function">find</span>(<!-- -->).<span class="lg-highlight-title lg-highlight-function">sort</span>( <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">1</span> } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The operation returns the following documents:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ \"_id\" : \"Ant O. Knee\", \"value\" : 95 }\n{ \"_id\" : \"Busby Bee\", \"value\" : 125 }\n{ \"_id\" : \"Cam Elot\", \"value\" : 60 }\n{ \"_id\" : \"Don Quis\", \"value\" : 155 }","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"Ant O. Knee"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <span class="lg-highlight-number">95</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"Busby Bee"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <span class="lg-highlight-number">125</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"Cam Elot"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <span class="lg-highlight-number">60</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"Don Quis"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <span class="lg-highlight-number">155</span> }</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</li>
</ol>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
For an alternative that uses custom aggregation expressions, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/map-reduce-to-aggregation-pipeline/#std-label-mr-to-agg-examples1">
Map-Reduce to Aggregation Pipeline Translation Examples
<!-- -->
.
</a>
</p>
</div>
</div>
</section>
</section>
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Calculate Order and Total Quantity with Average Quantity Per Item
<a class="headerlink leafygreen-ui-1kepx47" href="#calculate-order-and-total-quantity-with-average-quantity-per-item" title="Permalink to this heading">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
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</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
In the following example, you will see a map-reduce operation on the
<code class="leafygreen-ui-1l06pbn">
orders
</code>
collection for all documents that have an
<code class="leafygreen-ui-1l06pbn">
ord_date
</code>
value
greater than or equal to
<code class="leafygreen-ui-1l06pbn">
2020-03-01
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
The operation in the example:
</p>
<ol class="leafygreen-ui-rioki0" type="1">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Groups by the
<code class="leafygreen-ui-1l06pbn">
item.sku
</code>
field, and calculates the number of orders
and the total quantity ordered for each
<code class="leafygreen-ui-1l06pbn">
sku
</code>
.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Calculates the average quantity per order for each
<code class="leafygreen-ui-1l06pbn">
sku
</code>
value and
merges the results into the output collection.
</p>
</li>
</ol>
<p class="leafygreen-ui-1kp3ins">
When merging results, if an existing document has the same key as the
new result, the operation overwrites the existing document. If there is
no existing document with the same key, the operation inserts the
document.
</p>
<p class="leafygreen-ui-1kp3ins">
Example steps:
</p>
<ol class="leafygreen-ui-rioki0" type="1">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Define the map function to process each input document:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
In the function,
<code class="leafygreen-ui-1l06pbn">
this
</code>
refers to the document that the
map-reduce operation is processing.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For each item, the function associates the
<code class="leafygreen-ui-1l06pbn">
sku
</code>
with a new
object
<code class="leafygreen-ui-1l06pbn">
value
</code>
that contains the
<code class="leafygreen-ui-1l06pbn">
count
</code>
of
<code class="leafygreen-ui-1l06pbn">
1
</code>
and the item
<code class="leafygreen-ui-1l06pbn">
qty
</code>
for the order and emits the
<code class="leafygreen-ui-1l06pbn">
sku
</code>
(stored in the
<code class="leafygreen-ui-1l06pbn">
key
</code>
)
and the
<code class="leafygreen-ui-1l06pbn">
value
</code>
.
</p>
</li>
</ul>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":" var mapFunction2 = function() {\n for (var idx = 0; idx < this.items.length; idx++) {\n var key = this.items[idx].sku;\n var value = { count: 1, qty: this.items[idx].qty };\n\n emit(key, value);\n }\n};","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">var</span> mapFunction2 <!-- -->= <span class="lg-highlight-keyword lg-highlight-function">function</span>(<!-- -->)<!-- --> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">for</span> <!-- -->(<span class="lg-highlight-keyword">var</span> idx <!-- -->= <span class="lg-highlight-number">0</span>; <!-- -->idx <!-- -->< <span class="lg-highlight-variable lg-highlight-language">this</span>.<span class="lg-highlight-property">items</span>.<span class="lg-highlight-property">length</span>; <!-- -->idx<!-- -->+<!-- -->+<!-- -->) <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">var</span> key <!-- -->= <span class="lg-highlight-variable lg-highlight-language">this</span>.<span class="lg-highlight-property">items</span>[<!-- -->idx].<span class="lg-highlight-property">sku</span>;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">var</span> value <!-- -->= <!-- -->{ <span class="lg-highlight-attr">count</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-variable lg-highlight-language">this</span>.<span class="lg-highlight-property">items</span>[<!-- -->idx].<span class="lg-highlight-property">qty</span> }<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-function">emit</span>(<!-- -->key<!-- -->, <!-- -->value)<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->}</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}<!-- -->;</td></tr></tbody></table></code></pre>
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</div>
</div>
</div>
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</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Define the corresponding reduce function with two arguments
<code class="leafygreen-ui-1l06pbn">
keySKU
</code>
and
<code class="leafygreen-ui-1l06pbn">
countObjVals
</code>
:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
countObjVals
</code>
is an array whose elements are the objects
mapped to the grouped
<code class="leafygreen-ui-1l06pbn">
keySKU
</code>
values passed by map
function to the reducer function.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The function reduces the
<code class="leafygreen-ui-1l06pbn">
countObjVals
</code>
array to a single
object
<code class="leafygreen-ui-1l06pbn">
reducedValue
</code>
that contains the
<code class="leafygreen-ui-1l06pbn">
count
</code>
and the
<code class="leafygreen-ui-1l06pbn">
qty
</code>
fields.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
In
<code class="leafygreen-ui-1l06pbn">
reducedVal
</code>
, the
<code class="leafygreen-ui-1l06pbn">
count
</code>
field contains the sum of the
<code class="leafygreen-ui-1l06pbn">
count
</code>
fields from the individual array elements, and the
<code class="leafygreen-ui-1l06pbn">
qty
</code>
field contains the sum of the
<code class="leafygreen-ui-1l06pbn">
qty
</code>
fields from the
individual array elements.
</p>
</li>
</ul>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"var reduceFunction2 = function(keySKU, countObjVals) {\n reducedVal = { count: 0, qty: 0 };\n\n for (var idx = 0; idx < countObjVals.length; idx++) {\n reducedVal.count += countObjVals[idx].count;\n reducedVal.qty += countObjVals[idx].qty;\n }\n\n return reducedVal;\n};","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> reduceFunction2 <!-- -->= <span class="lg-highlight-keyword lg-highlight-function">function</span>(<span class="lg-highlight-params">keySKU, countObjVals</span>)<!-- --> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->reducedVal <!-- -->= <!-- -->{ <span class="lg-highlight-attr">count</span>: <span class="lg-highlight-number">0</span>, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">0</span> }<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">for</span> <!-- -->(<span class="lg-highlight-keyword">var</span> idx <!-- -->= <span class="lg-highlight-number">0</span>; <!-- -->idx <!-- -->< <!-- -->countObjVals.<span class="lg-highlight-property">length</span>; <!-- -->idx<!-- -->+<!-- -->+<!-- -->) <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->reducedVal.<span class="lg-highlight-property">count</span> <!-- -->+<!-- -->= <!-- -->countObjVals<!-- -->[<!-- -->idx].<span class="lg-highlight-property">count</span>;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->reducedVal.<span class="lg-highlight-property">qty</span> <!-- -->+<!-- -->= <!-- -->countObjVals<!-- -->[<!-- -->idx].<span class="lg-highlight-property">qty</span>;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->}</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">return</span> <!-- -->reducedVal<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}<!-- -->;</td></tr></tbody></table></code></pre>
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</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Define a finalize function with two arguments
<code class="leafygreen-ui-1l06pbn">
key
</code>
and
<code class="leafygreen-ui-1l06pbn">
reducedVal
</code>
. The function modifies the
<code class="leafygreen-ui-1l06pbn">
reducedVal
</code>
object
to add a computed field named
<code class="leafygreen-ui-1l06pbn">
avg
</code>
and returns the modified
object:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"var finalizeFunction2 = function (key, reducedVal) {\n reducedVal.avg = reducedVal.qty/reducedVal.count;\n return reducedVal;\n};","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> finalizeFunction2 <!-- -->= <span class="lg-highlight-keyword lg-highlight-function">function</span> <!-- -->(<span class="lg-highlight-params">key, reducedVal</span>)<!-- --> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->reducedVal.<span class="lg-highlight-property">avg</span> <!-- -->= <!-- -->reducedVal.<span class="lg-highlight-property">qty</span>/<!-- -->reducedVal.<span class="lg-highlight-property">count</span>;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">return</span> <!-- -->reducedVal<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}<!-- -->;</td></tr></tbody></table></code></pre>
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</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Perform the map-reduce operation on the
<code class="leafygreen-ui-1l06pbn">
orders
</code>
collection using
the
<code class="leafygreen-ui-1l06pbn">
mapFunction2
</code>
,
<code class="leafygreen-ui-1l06pbn">
reduceFunction2
</code>
, and
<code class="leafygreen-ui-1l06pbn">
finalizeFunction2
</code>
functions:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.orders.mapReduce(\n mapFunction2,\n reduceFunction2,\n {\n out: { merge: \"map_reduce_example2\" },\n query: { ord_date: { $gte: new Date(\"2020-03-01\") } },\n finalize: finalizeFunction2\n }\n );","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">orders</span>.<span class="lg-highlight-title lg-highlight-function">mapReduce</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->mapFunction2<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->reduceFunction2<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">out</span>: <!-- -->{ <span class="lg-highlight-attr">merge</span>: <span class="lg-highlight-string">"map_reduce_example2"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">query</span>: <!-- -->{ <span class="lg-highlight-attr">ord_date</span>: <!-- -->{ <span class="lg-highlight-attr">$gte</span>: <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Date</span>(<span class="lg-highlight-string">"2020-03-01"</span>) } }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">finalize</span>: <!-- -->finalizeFunction2</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> )<!-- -->;</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
This operation uses the
<code class="leafygreen-ui-1l06pbn">
query
</code>
field to select only those
documents with
<code class="leafygreen-ui-1l06pbn">
ord_date
</code>
greater than or equal to
<code class="leafygreen-ui-1l06pbn">
new
Date("2020-03-01")
</code>
. Then it outputs the results to a collection
<code class="leafygreen-ui-1l06pbn">
map_reduce_example2
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
If the
<code class="leafygreen-ui-1l06pbn">
map_reduce_example2
</code>
collection already exists, the
operation will merge the existing contents with the results of this
map-reduce operation. That is, if an existing document has the same
key as the new result, the operation overwrites the existing
document. If there is no existing document with the same key, the
operation inserts the document.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Query the
<code class="leafygreen-ui-1l06pbn">
map_reduce_example2
</code>
collection to verify the results:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.map_reduce_example2.find().sort( { _id: 1 } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">map_reduce_example2</span>.<span class="lg-highlight-title lg-highlight-function">find</span>(<!-- -->).<span class="lg-highlight-title lg-highlight-function">sort</span>( <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">1</span> } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The operation returns these documents:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ \"_id\" : \"apples\", \"value\" : { \"count\" : 4, \"qty\" : 35, \"avg\" : 8.75 } }\n{ \"_id\" : \"carrots\", \"value\" : { \"count\" : 2, \"qty\" : 15, \"avg\" : 7.5 } }\n{ \"_id\" : \"chocolates\", \"value\" : { \"count\" : 3, \"qty\" : 15, \"avg\" : 5 } }\n{ \"_id\" : \"oranges\", \"value\" : { \"count\" : 7, \"qty\" : 63, \"avg\" : 9 } }\n{ \"_id\" : \"pears\", \"value\" : { \"count\" : 1, \"qty\" : 10, \"avg\" : 10 } }","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"apples"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"count"</span> <!-- -->: <span class="lg-highlight-number">4</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">35</span>, <span class="lg-highlight-string">"avg"</span> <!-- -->: <span class="lg-highlight-number">8.75</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"carrots"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"count"</span> <!-- -->: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">15</span>, <span class="lg-highlight-string">"avg"</span> <!-- -->: <span class="lg-highlight-number">7.5</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"chocolates"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"count"</span> <!-- -->: <span class="lg-highlight-number">3</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">15</span>, <span class="lg-highlight-string">"avg"</span> <!-- -->: <span class="lg-highlight-number">5</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"oranges"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"count"</span> <!-- -->: <span class="lg-highlight-number">7</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">63</span>, <span class="lg-highlight-string">"avg"</span> <!-- -->: <span class="lg-highlight-number">9</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"pears"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"count"</span> <!-- -->: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-string">"avg"</span> <!-- -->: <span class="lg-highlight-number">10</span> } }</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</li>
</ol>
<section>
<h5 class="contains-headerlink leafygreen-ui-1vzlt5f">
Aggregation Alternative
<a class="headerlink leafygreen-ui-1kepx47" href="#aggregation-alternative-1" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="aggregation-alternative-1">
</div>
</a>
</h5>
<p class="leafygreen-ui-1kp3ins">
Using the available aggregation pipeline operators, you can rewrite
the map-reduce operation without defining custom functions:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.orders.aggregate( [\n { $match: { ord_date: { $gte: new Date(\"2020-03-01\") } } },\n { $unwind: \"$items\" },\n { $group: { _id: \"$items.sku\", qty: { $sum: \"$items.qty\" }, orders_ids: { $addToSet: \"$_id\" } } },\n { $project: { value: { count: { $size: \"$orders_ids\" }, qty: \"$qty\", avg: { $divide: [ \"$qty\", { $size: \"$orders_ids\" } ] } } } },\n { $merge: { into: \"agg_alternative_3\", on: \"_id\", whenMatched: \"replace\", whenNotMatched: \"insert\" } }\n] )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">orders</span>.<span class="lg-highlight-title lg-highlight-function">aggregate</span>( <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">$match</span>: <!-- -->{ <span class="lg-highlight-attr">ord_date</span>: <!-- -->{ <span class="lg-highlight-attr">$gte</span>: <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Date</span>(<span class="lg-highlight-string">"2020-03-01"</span>) } } }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">$unwind</span>: <span class="lg-highlight-string">"$items"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">$group</span>: <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-string">"$items.sku"</span>, <span class="lg-highlight-attr">qty</span>: <!-- -->{ <span class="lg-highlight-attr">$sum</span>: <span class="lg-highlight-string">"$items.qty"</span> }<!-- -->, <span class="lg-highlight-attr">orders_ids</span>: <!-- -->{ <span class="lg-highlight-attr">$addToSet</span>: <span class="lg-highlight-string">"$_id"</span> } } }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">$project</span>: <!-- -->{ <span class="lg-highlight-attr">value</span>: <!-- -->{ <span class="lg-highlight-attr">count</span>: <!-- -->{ <span class="lg-highlight-attr">$size</span>: <span class="lg-highlight-string">"$orders_ids"</span> }<!-- -->, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-string">"$qty"</span>, <span class="lg-highlight-attr">avg</span>: <!-- -->{ <span class="lg-highlight-attr">$divide</span>: <!-- -->[ <span class="lg-highlight-string">"$qty"</span>, <!-- -->{ <span class="lg-highlight-attr">$size</span>: <span class="lg-highlight-string">"$orders_ids"</span> } ] } } } }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">$merge</span>: <!-- -->{ <span class="lg-highlight-attr">into</span>: <span class="lg-highlight-string">"agg_alternative_3"</span>, <span class="lg-highlight-attr">on</span>: <span class="lg-highlight-string">"_id"</span>, <span class="lg-highlight-attr">whenMatched</span>: <span class="lg-highlight-string">"replace"</span>, <span class="lg-highlight-attr">whenNotMatched</span>: <span class="lg-highlight-string">"insert"</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">] )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<ol class="leafygreen-ui-rioki0" type="1">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/match/#mongodb-pipeline-pipe.-match">
<code class="leafygreen-ui-1l06pbn">
$match
</code>
</a>
stage selects only those
documents with
<code class="leafygreen-ui-1l06pbn">
ord_date
</code>
greater than or equal to
<code class="leafygreen-ui-1l06pbn">
new
Date("2020-03-01")
</code>
.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/unwind/#mongodb-pipeline-pipe.-unwind">
<code class="leafygreen-ui-1l06pbn">
$unwind
</code>
</a>
stage breaks down the document by
the
<code class="leafygreen-ui-1l06pbn">
items
</code>
array field to output a document for each array
element. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ \"_id\" : 1, \"cust_id\" : \"Ant O. Knee\", \"ord_date\" : ISODate(\"2020-03-01T00:00:00Z\"), \"price\" : 25, \"items\" : { \"sku\" : \"oranges\", \"qty\" : 5, \"price\" : 2.5 }, \"status\" : \"A\" }\n{ \"_id\" : 1, \"cust_id\" : \"Ant O. Knee\", \"ord_date\" : ISODate(\"2020-03-01T00:00:00Z\"), \"price\" : 25, \"items\" : { \"sku\" : \"apples\", \"qty\" : 5, \"price\" : 2.5 }, \"status\" : \"A\" }\n{ \"_id\" : 2, \"cust_id\" : \"Ant O. Knee\", \"ord_date\" : ISODate(\"2020-03-08T00:00:00Z\"), \"price\" : 70, \"items\" : { \"sku\" : \"oranges\", \"qty\" : 8, \"price\" : 2.5 }, \"status\" : \"A\" }\n{ \"_id\" : 2, \"cust_id\" : \"Ant O. Knee\", \"ord_date\" : ISODate(\"2020-03-08T00:00:00Z\"), \"price\" : 70, \"items\" : { \"sku\" : \"chocolates\", \"qty\" : 5, \"price\" : 10 }, \"status\" : \"A\" }\n{ \"_id\" : 3, \"cust_id\" : \"Busby Bee\", \"ord_date\" : ISODate(\"2020-03-08T00:00:00Z\"), \"price\" : 50, \"items\" : { \"sku\" : \"oranges\", \"qty\" : 10, \"price\" : 2.5 }, \"status\" : \"A\" }\n{ \"_id\" : 3, \"cust_id\" : \"Busby Bee\", \"ord_date\" : ISODate(\"2020-03-08T00:00:00Z\"), \"price\" : 50, \"items\" : { \"sku\" : \"pears\", \"qty\" : 10, \"price\" : 2.5 }, \"status\" : \"A\" }\n{ \"_id\" : 4, \"cust_id\" : \"Busby Bee\", \"ord_date\" : ISODate(\"2020-03-18T00:00:00Z\"), \"price\" : 25, \"items\" : { \"sku\" : \"oranges\", \"qty\" : 10, \"price\" : 2.5 }, \"status\" : \"A\" }\n{ \"_id\" : 5, \"cust_id\" : \"Busby Bee\", \"ord_date\" : ISODate(\"2020-03-19T00:00:00Z\"), \"price\" : 50, \"items\" : { \"sku\" : \"chocolates\", \"qty\" : 5, \"price\" : 10 }, \"status\" : \"A\" }\n...","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-string">"cust_id"</span> <!-- -->: <span class="lg-highlight-string">"Ant O. Knee"</span>, <span class="lg-highlight-string">"ord_date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-03-01T00:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">25</span>, <span class="lg-highlight-string">"items"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"sku"</span> <!-- -->: <span class="lg-highlight-string">"oranges"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">2.5</span> }<!-- -->, <span class="lg-highlight-string">"status"</span> <!-- -->: <span class="lg-highlight-string">"A"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-string">"cust_id"</span> <!-- -->: <span class="lg-highlight-string">"Ant O. Knee"</span>, <span class="lg-highlight-string">"ord_date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-03-01T00:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">25</span>, <span class="lg-highlight-string">"items"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"sku"</span> <!-- -->: <span class="lg-highlight-string">"apples"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">2.5</span> }<!-- -->, <span class="lg-highlight-string">"status"</span> <!-- -->: <span class="lg-highlight-string">"A"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-string">"cust_id"</span> <!-- -->: <span class="lg-highlight-string">"Ant O. Knee"</span>, <span class="lg-highlight-string">"ord_date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-03-08T00:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">70</span>, <span class="lg-highlight-string">"items"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"sku"</span> <!-- -->: <span class="lg-highlight-string">"oranges"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">8</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">2.5</span> }<!-- -->, <span class="lg-highlight-string">"status"</span> <!-- -->: <span class="lg-highlight-string">"A"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-string">"cust_id"</span> <!-- -->: <span class="lg-highlight-string">"Ant O. Knee"</span>, <span class="lg-highlight-string">"ord_date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-03-08T00:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">70</span>, <span class="lg-highlight-string">"items"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"sku"</span> <!-- -->: <span class="lg-highlight-string">"chocolates"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">10</span> }<!-- -->, <span class="lg-highlight-string">"status"</span> <!-- -->: <span class="lg-highlight-string">"A"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">3</span>, <span class="lg-highlight-string">"cust_id"</span> <!-- -->: <span class="lg-highlight-string">"Busby Bee"</span>, <span class="lg-highlight-string">"ord_date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-03-08T00:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">50</span>, <span class="lg-highlight-string">"items"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"sku"</span> <!-- -->: <span class="lg-highlight-string">"oranges"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">2.5</span> }<!-- -->, <span class="lg-highlight-string">"status"</span> <!-- -->: <span class="lg-highlight-string">"A"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">3</span>, <span class="lg-highlight-string">"cust_id"</span> <!-- -->: <span class="lg-highlight-string">"Busby Bee"</span>, <span class="lg-highlight-string">"ord_date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-03-08T00:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">50</span>, <span class="lg-highlight-string">"items"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"sku"</span> <!-- -->: <span class="lg-highlight-string">"pears"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">2.5</span> }<!-- -->, <span class="lg-highlight-string">"status"</span> <!-- -->: <span class="lg-highlight-string">"A"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">4</span>, <span class="lg-highlight-string">"cust_id"</span> <!-- -->: <span class="lg-highlight-string">"Busby Bee"</span>, <span class="lg-highlight-string">"ord_date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-03-18T00:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">25</span>, <span class="lg-highlight-string">"items"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"sku"</span> <!-- -->: <span class="lg-highlight-string">"oranges"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">2.5</span> }<!-- -->, <span class="lg-highlight-string">"status"</span> <!-- -->: <span class="lg-highlight-string">"A"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-string">"cust_id"</span> <!-- -->: <span class="lg-highlight-string">"Busby Bee"</span>, <span class="lg-highlight-string">"ord_date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-03-19T00:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">50</span>, <span class="lg-highlight-string">"items"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"sku"</span> <!-- -->: <span class="lg-highlight-string">"chocolates"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">10</span> }<!-- -->, <span class="lg-highlight-string">"status"</span> <!-- -->: <span class="lg-highlight-string">"A"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">...</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/group/#mongodb-pipeline-pipe.-group">
<code class="leafygreen-ui-1l06pbn">
$group
</code>
</a>
stage groups by the
<code class="leafygreen-ui-1l06pbn">
items.sku
</code>
, calculating for each sku:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<dl>
<dt>
The
<code class="leafygreen-ui-1l06pbn">
qty
</code>
field. The
<code class="leafygreen-ui-1l06pbn">
qty
</code>
field contains the
</dt>
<dd class="css-1ufxuu7">
total
<code class="leafygreen-ui-1l06pbn">
qty
</code>
ordered per each
<code class="leafygreen-ui-1l06pbn">
items.sku
</code>
(See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/sum/#mongodb-group-grp.-sum">
<code class="leafygreen-ui-1l06pbn">
$sum
</code>
</a>
).
</dd>
</dl>
</li>
<li class="leafygreen-ui-d7p7b6">
<dl>
<dt>
The
<code class="leafygreen-ui-1l06pbn">
orders_ids
</code>
array. The
<code class="leafygreen-ui-1l06pbn">
orders_ids
</code>
field contains an
</dt>
<dd class="css-1ufxuu7">
array of distinct order
<code class="leafygreen-ui-1l06pbn">
_id
</code>
's for the
<code class="leafygreen-ui-1l06pbn">
items.sku
</code>
(See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/addToSet/#mongodb-group-grp.-addToSet">
<code class="leafygreen-ui-1l06pbn">
$addToSet
</code>
</a>
).
</dd>
</dl>
</li>
</ul>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ \"_id\" : \"chocolates\", \"qty\" : 15, \"orders_ids\" : [ 2, 5, 8 ] }\n{ \"_id\" : \"oranges\", \"qty\" : 63, \"orders_ids\" : [ 4, 7, 3, 2, 9, 1, 10 ] }\n{ \"_id\" : \"carrots\", \"qty\" : 15, \"orders_ids\" : [ 6, 9 ] }\n{ \"_id\" : \"apples\", \"qty\" : 35, \"orders_ids\" : [ 9, 8, 1, 6 ] }\n{ \"_id\" : \"pears\", \"qty\" : 10, \"orders_ids\" : [ 3 ] }","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"chocolates"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">15</span>, <span class="lg-highlight-string">"orders_ids"</span> <!-- -->: <!-- -->[ <span class="lg-highlight-number">2</span>, <span class="lg-highlight-number">5</span>, <span class="lg-highlight-number">8</span> ] }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"oranges"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">63</span>, <span class="lg-highlight-string">"orders_ids"</span> <!-- -->: <!-- -->[ <span class="lg-highlight-number">4</span>, <span class="lg-highlight-number">7</span>, <span class="lg-highlight-number">3</span>, <span class="lg-highlight-number">2</span>, <span class="lg-highlight-number">9</span>, <span class="lg-highlight-number">1</span>, <span class="lg-highlight-number">10</span> ] }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"carrots"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">15</span>, <span class="lg-highlight-string">"orders_ids"</span> <!-- -->: <!-- -->[ <span class="lg-highlight-number">6</span>, <span class="lg-highlight-number">9</span> ] }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"apples"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">35</span>, <span class="lg-highlight-string">"orders_ids"</span> <!-- -->: <!-- -->[ <span class="lg-highlight-number">9</span>, <span class="lg-highlight-number">8</span>, <span class="lg-highlight-number">1</span>, <span class="lg-highlight-number">6</span> ] }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"pears"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-string">"orders_ids"</span> <!-- -->: <!-- -->[ <span class="lg-highlight-number">3</span> ] }</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/project/#mongodb-pipeline-pipe.-project">
<code class="leafygreen-ui-1l06pbn">
$project
</code>
</a>
stage reshapes the output document to
mirror the map-reduce's output to have two fields
<code class="leafygreen-ui-1l06pbn">
_id
</code>
and
<code class="leafygreen-ui-1l06pbn">
value
</code>
. The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/project/#mongodb-pipeline-pipe.-project">
<code class="leafygreen-ui-1l06pbn">
$project
</code>
</a>
sets:
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/unwind/#mongodb-pipeline-pipe.-unwind">
<code class="leafygreen-ui-1l06pbn">
$unwind
</code>
</a>
stage breaks down the document by
the
<code class="leafygreen-ui-1l06pbn">
items
</code>
array field to output a document for each array
element. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ \"_id\" : 1, \"cust_id\" : \"Ant O. Knee\", \"ord_date\" : ISODate(\"2020-03-01T00:00:00Z\"), \"price\" : 25, \"items\" : { \"sku\" : \"oranges\", \"qty\" : 5, \"price\" : 2.5 }, \"status\" : \"A\" }\n{ \"_id\" : 1, \"cust_id\" : \"Ant O. Knee\", \"ord_date\" : ISODate(\"2020-03-01T00:00:00Z\"), \"price\" : 25, \"items\" : { \"sku\" : \"apples\", \"qty\" : 5, \"price\" : 2.5 }, \"status\" : \"A\" }\n{ \"_id\" : 2, \"cust_id\" : \"Ant O. Knee\", \"ord_date\" : ISODate(\"2020-03-08T00:00:00Z\"), \"price\" : 70, \"items\" : { \"sku\" : \"oranges\", \"qty\" : 8, \"price\" : 2.5 }, \"status\" : \"A\" }\n{ \"_id\" : 2, \"cust_id\" : \"Ant O. Knee\", \"ord_date\" : ISODate(\"2020-03-08T00:00:00Z\"), \"price\" : 70, \"items\" : { \"sku\" : \"chocolates\", \"qty\" : 5, \"price\" : 10 }, \"status\" : \"A\" }\n{ \"_id\" : 3, \"cust_id\" : \"Busby Bee\", \"ord_date\" : ISODate(\"2020-03-08T00:00:00Z\"), \"price\" : 50, \"items\" : { \"sku\" : \"oranges\", \"qty\" : 10, \"price\" : 2.5 }, \"status\" : \"A\" }\n{ \"_id\" : 3, \"cust_id\" : \"Busby Bee\", \"ord_date\" : ISODate(\"2020-03-08T00:00:00Z\"), \"price\" : 50, \"items\" : { \"sku\" : \"pears\", \"qty\" : 10, \"price\" : 2.5 }, \"status\" : \"A\" }\n{ \"_id\" : 4, \"cust_id\" : \"Busby Bee\", \"ord_date\" : ISODate(\"2020-03-18T00:00:00Z\"), \"price\" : 25, \"items\" : { \"sku\" : \"oranges\", \"qty\" : 10, \"price\" : 2.5 }, \"status\" : \"A\" }\n{ \"_id\" : 5, \"cust_id\" : \"Busby Bee\", \"ord_date\" : ISODate(\"2020-03-19T00:00:00Z\"), \"price\" : 50, \"items\" : { \"sku\" : \"chocolates\", \"qty\" : 5, \"price\" : 10 }, \"status\" : \"A\" }\n...","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-string">"cust_id"</span> <!-- -->: <span class="lg-highlight-string">"Ant O. Knee"</span>, <span class="lg-highlight-string">"ord_date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-03-01T00:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">25</span>, <span class="lg-highlight-string">"items"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"sku"</span> <!-- -->: <span class="lg-highlight-string">"oranges"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">2.5</span> }<!-- -->, <span class="lg-highlight-string">"status"</span> <!-- -->: <span class="lg-highlight-string">"A"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-string">"cust_id"</span> <!-- -->: <span class="lg-highlight-string">"Ant O. Knee"</span>, <span class="lg-highlight-string">"ord_date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-03-01T00:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">25</span>, <span class="lg-highlight-string">"items"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"sku"</span> <!-- -->: <span class="lg-highlight-string">"apples"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">2.5</span> }<!-- -->, <span class="lg-highlight-string">"status"</span> <!-- -->: <span class="lg-highlight-string">"A"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-string">"cust_id"</span> <!-- -->: <span class="lg-highlight-string">"Ant O. Knee"</span>, <span class="lg-highlight-string">"ord_date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-03-08T00:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">70</span>, <span class="lg-highlight-string">"items"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"sku"</span> <!-- -->: <span class="lg-highlight-string">"oranges"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">8</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">2.5</span> }<!-- -->, <span class="lg-highlight-string">"status"</span> <!-- -->: <span class="lg-highlight-string">"A"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-string">"cust_id"</span> <!-- -->: <span class="lg-highlight-string">"Ant O. Knee"</span>, <span class="lg-highlight-string">"ord_date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-03-08T00:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">70</span>, <span class="lg-highlight-string">"items"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"sku"</span> <!-- -->: <span class="lg-highlight-string">"chocolates"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">10</span> }<!-- -->, <span class="lg-highlight-string">"status"</span> <!-- -->: <span class="lg-highlight-string">"A"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">3</span>, <span class="lg-highlight-string">"cust_id"</span> <!-- -->: <span class="lg-highlight-string">"Busby Bee"</span>, <span class="lg-highlight-string">"ord_date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-03-08T00:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">50</span>, <span class="lg-highlight-string">"items"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"sku"</span> <!-- -->: <span class="lg-highlight-string">"oranges"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">2.5</span> }<!-- -->, <span class="lg-highlight-string">"status"</span> <!-- -->: <span class="lg-highlight-string">"A"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">3</span>, <span class="lg-highlight-string">"cust_id"</span> <!-- -->: <span class="lg-highlight-string">"Busby Bee"</span>, <span class="lg-highlight-string">"ord_date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-03-08T00:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">50</span>, <span class="lg-highlight-string">"items"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"sku"</span> <!-- -->: <span class="lg-highlight-string">"pears"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">2.5</span> }<!-- -->, <span class="lg-highlight-string">"status"</span> <!-- -->: <span class="lg-highlight-string">"A"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">4</span>, <span class="lg-highlight-string">"cust_id"</span> <!-- -->: <span class="lg-highlight-string">"Busby Bee"</span>, <span class="lg-highlight-string">"ord_date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-03-18T00:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">25</span>, <span class="lg-highlight-string">"items"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"sku"</span> <!-- -->: <span class="lg-highlight-string">"oranges"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">2.5</span> }<!-- -->, <span class="lg-highlight-string">"status"</span> <!-- -->: <span class="lg-highlight-string">"A"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-string">"cust_id"</span> <!-- -->: <span class="lg-highlight-string">"Busby Bee"</span>, <span class="lg-highlight-string">"ord_date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-03-19T00:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">50</span>, <span class="lg-highlight-string">"items"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"sku"</span> <!-- -->: <span class="lg-highlight-string">"chocolates"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">10</span> }<!-- -->, <span class="lg-highlight-string">"status"</span> <!-- -->: <span class="lg-highlight-string">"A"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">...</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/group/#mongodb-pipeline-pipe.-group">
<code class="leafygreen-ui-1l06pbn">
$group
</code>
</a>
stage groups by the
<code class="leafygreen-ui-1l06pbn">
items.sku
</code>
, calculating for each sku:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
qty
</code>
field. The
<code class="leafygreen-ui-1l06pbn">
qty
</code>
field contains the
total
<code class="leafygreen-ui-1l06pbn">
qty
</code>
ordered per each
<code class="leafygreen-ui-1l06pbn">
items.sku
</code>
using
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/sum/#mongodb-group-grp.-sum">
<code class="leafygreen-ui-1l06pbn">
$sum
</code>
.
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
orders_ids
</code>
array. The
<code class="leafygreen-ui-1l06pbn">
orders_ids
</code>
field contains an
array of distinct order
<code class="leafygreen-ui-1l06pbn">
_id
</code>
's for the
<code class="leafygreen-ui-1l06pbn">
items.sku
</code>
using
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/addToSet/#mongodb-group-grp.-addToSet">
<code class="leafygreen-ui-1l06pbn">
$addToSet
</code>
.
</a>
</p>
</li>
</ul>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ \"_id\" : \"chocolates\", \"qty\" : 15, \"orders_ids\" : [ 2, 5, 8 ] }\n{ \"_id\" : \"oranges\", \"qty\" : 63, \"orders_ids\" : [ 4, 7, 3, 2, 9, 1, 10 ] }\n{ \"_id\" : \"carrots\", \"qty\" : 15, \"orders_ids\" : [ 6, 9 ] }\n{ \"_id\" : \"apples\", \"qty\" : 35, \"orders_ids\" : [ 9, 8, 1, 6 ] }\n{ \"_id\" : \"pears\", \"qty\" : 10, \"orders_ids\" : [ 3 ] }","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"chocolates"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">15</span>, <span class="lg-highlight-string">"orders_ids"</span> <!-- -->: <!-- -->[ <span class="lg-highlight-number">2</span>, <span class="lg-highlight-number">5</span>, <span class="lg-highlight-number">8</span> ] }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"oranges"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">63</span>, <span class="lg-highlight-string">"orders_ids"</span> <!-- -->: <!-- -->[ <span class="lg-highlight-number">4</span>, <span class="lg-highlight-number">7</span>, <span class="lg-highlight-number">3</span>, <span class="lg-highlight-number">2</span>, <span class="lg-highlight-number">9</span>, <span class="lg-highlight-number">1</span>, <span class="lg-highlight-number">10</span> ] }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"carrots"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">15</span>, <span class="lg-highlight-string">"orders_ids"</span> <!-- -->: <!-- -->[ <span class="lg-highlight-number">6</span>, <span class="lg-highlight-number">9</span> ] }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"apples"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">35</span>, <span class="lg-highlight-string">"orders_ids"</span> <!-- -->: <!-- -->[ <span class="lg-highlight-number">9</span>, <span class="lg-highlight-number">8</span>, <span class="lg-highlight-number">1</span>, <span class="lg-highlight-number">6</span> ] }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"pears"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-string">"orders_ids"</span> <!-- -->: <!-- -->[ <span class="lg-highlight-number">3</span> ] }</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/project/#mongodb-pipeline-pipe.-project">
<code class="leafygreen-ui-1l06pbn">
$project
</code>
</a>
stage reshapes the output document to
mirror the map-reduce's output to have two fields
<code class="leafygreen-ui-1l06pbn">
_id
</code>
and
<code class="leafygreen-ui-1l06pbn">
value
</code>
. The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/project/#mongodb-pipeline-pipe.-project">
<code class="leafygreen-ui-1l06pbn">
$project
</code>
</a>
sets:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
the
<code class="leafygreen-ui-1l06pbn">
value.count
</code>
to the size of the
<code class="leafygreen-ui-1l06pbn">
orders_ids
</code>
array
using
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/size/#mongodb-expression-exp.-size">
<code class="leafygreen-ui-1l06pbn">
$size
</code>
.
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
the
<code class="leafygreen-ui-1l06pbn">
value.qty
</code>
to the
<code class="leafygreen-ui-1l06pbn">
qty
</code>
field of input document.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
the
<code class="leafygreen-ui-1l06pbn">
value.avg
</code>
to the average number of qty per order
using
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/divide/#mongodb-expression-exp.-divide">
<code class="leafygreen-ui-1l06pbn">
$divide
</code>
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/size/#mongodb-expression-exp.-size">
<code class="leafygreen-ui-1l06pbn">
$size
</code>
.
</a>
</p>
</li>
</ul>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ \"_id\" : \"apples\", \"value\" : { \"count\" : 4, \"qty\" : 35, \"avg\" : 8.75 } }\n{ \"_id\" : \"pears\", \"value\" : { \"count\" : 1, \"qty\" : 10, \"avg\" : 10 } }\n{ \"_id\" : \"chocolates\", \"value\" : { \"count\" : 3, \"qty\" : 15, \"avg\" : 5 } }\n{ \"_id\" : \"oranges\", \"value\" : { \"count\" : 7, \"qty\" : 63, \"avg\" : 9 } }\n{ \"_id\" : \"carrots\", \"value\" : { \"count\" : 2, \"qty\" : 15, \"avg\" : 7.5 } }","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"apples"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"count"</span> <!-- -->: <span class="lg-highlight-number">4</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">35</span>, <span class="lg-highlight-string">"avg"</span> <!-- -->: <span class="lg-highlight-number">8.75</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"pears"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"count"</span> <!-- -->: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-string">"avg"</span> <!-- -->: <span class="lg-highlight-number">10</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"chocolates"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"count"</span> <!-- -->: <span class="lg-highlight-number">3</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">15</span>, <span class="lg-highlight-string">"avg"</span> <!-- -->: <span class="lg-highlight-number">5</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"oranges"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"count"</span> <!-- -->: <span class="lg-highlight-number">7</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">63</span>, <span class="lg-highlight-string">"avg"</span> <!-- -->: <span class="lg-highlight-number">9</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"carrots"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"count"</span> <!-- -->: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">15</span>, <span class="lg-highlight-string">"avg"</span> <!-- -->: <span class="lg-highlight-number">7.5</span> } }</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Finally, the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/merge/#mongodb-pipeline-pipe.-merge">
<code class="leafygreen-ui-1l06pbn">
$merge
</code>
</a>
writes the output to the
collection
<code class="leafygreen-ui-1l06pbn">
agg_alternative_3
</code>
. If an existing document has the same
key
<code class="leafygreen-ui-1l06pbn">
_id
</code>
as the new result, the operation overwrites the existing
document. If there is no existing document with the same key, the
operation inserts the document.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Query the
<code class="leafygreen-ui-1l06pbn">
agg_alternative_3
</code>
collection to verify the results:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.agg_alternative_3.find().sort( { _id: 1 } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">agg_alternative_3</span>.<span class="lg-highlight-title lg-highlight-function">find</span>(<!-- -->).<span class="lg-highlight-title lg-highlight-function">sort</span>( <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">1</span> } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The operation returns the following documents:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ \"_id\" : \"apples\", \"value\" : { \"count\" : 4, \"qty\" : 35, \"avg\" : 8.75 } }\n{ \"_id\" : \"carrots\", \"value\" : { \"count\" : 2, \"qty\" : 15, \"avg\" : 7.5 } }\n{ \"_id\" : \"chocolates\", \"value\" : { \"count\" : 3, \"qty\" : 15, \"avg\" : 5 } }\n{ \"_id\" : \"oranges\", \"value\" : { \"count\" : 7, \"qty\" : 63, \"avg\" : 9 } }\n{ \"_id\" : \"pears\", \"value\" : { \"count\" : 1, \"qty\" : 10, \"avg\" : 10 } }","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"apples"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"count"</span> <!-- -->: <span class="lg-highlight-number">4</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">35</span>, <span class="lg-highlight-string">"avg"</span> <!-- -->: <span class="lg-highlight-number">8.75</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"carrots"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"count"</span> <!-- -->: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">15</span>, <span class="lg-highlight-string">"avg"</span> <!-- -->: <span class="lg-highlight-number">7.5</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"chocolates"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"count"</span> <!-- -->: <span class="lg-highlight-number">3</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">15</span>, <span class="lg-highlight-string">"avg"</span> <!-- -->: <span class="lg-highlight-number">5</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"oranges"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"count"</span> <!-- -->: <span class="lg-highlight-number">7</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">63</span>, <span class="lg-highlight-string">"avg"</span> <!-- -->: <span class="lg-highlight-number">9</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"pears"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"count"</span> <!-- -->: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-string">"avg"</span> <!-- -->: <span class="lg-highlight-number">10</span> } }</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</li>
</ol>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
For an alternative that uses custom aggregation expressions, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/map-reduce-to-aggregation-pipeline/#std-label-mr-to-agg-examples2">
Map-Reduce to Aggregation Pipeline Translation Examples
<!-- -->
.
</a>
</p>
</div>
</div>
</section>
</section>
</section>
<p class="leafygreen-ui-1kp3ins">
For more information and examples, see the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/map-reduce/#std-label-map-reduce">
Map-Reduce
</a>
page and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/perform-incremental-map-reduce/#std-label-incremental-map-reduce">
Perform Incremental Map-Reduce
</a>
</p>
<span class="leafygreen-ui-1qnjd6d" id="std-label-mapreduce-output">
</span>
<span class="leafygreen-ui-1qnjd6d" id="std-label-mapReduce-output">
</span>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Output
<a class="headerlink leafygreen-ui-1kepx47" href="#output" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="output">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
If you set the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-mapreduce-out-cmd" target="_self">
<span>
out
</span>
</a>
parameter to write the
results to a collection, the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.mapReduce" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mapReduce
</code>
</span>
</a>
command returns a
document in the following form:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ \"result\" : \"map_reduce_example\", \"ok\" : 1 }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"result"</span> <!-- -->: <span class="lg-highlight-string">"map_reduce_example"</span>, <span class="lg-highlight-string">"ok"</span> <!-- -->: <span class="lg-highlight-number">1</span> }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
If you set the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-mapreduce-out-cmd" target="_self">
<span>
out
</span>
</a>
parameter to output the
results inline, the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.mapReduce" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mapReduce
</code>
</span>
</a>
command returns a document
in the following form:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n \"results\" : [\n {\n \"_id\" : <key>,\n \"value\" :<reduced>\n },\n ...\n ],\n \"ok\" : <int>\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"results"</span> <!-- -->: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"_id"</span> <!-- -->: <<!-- -->key<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"value"</span> <!-- -->:<!-- --><reduced or finalizedValue for key></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ],</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "ok" : <int></td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
mapReduce.result
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-mapReduce.result" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-mapReduce.result">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
For output sent to a collection, this value is either:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
a string for the collection name if
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-mapreduce-out-cmd" target="_self">
<span>
out
</span>
</a>
did not specify the database name, or
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
a document with both
<code class="leafygreen-ui-1l06pbn">
db
</code>
and
<code class="leafygreen-ui-1l06pbn">
collection
</code>
fields if
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-mapreduce-out-cmd" target="_self">
<span>
out
</span>
</a>
specified both a database and collection name.
</p>
</li>
</ul>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
mapReduce.results
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-mapReduce.results" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-mapReduce.results">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
For output written inline, an array of resulting documents. Each
resulting document contains two fields:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
_id
</code>
field contains the
<code class="leafygreen-ui-1l06pbn">
key
</code>
value,
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
value
</code>
field contains the reduced or finalized value for the
associated
<code class="leafygreen-ui-1l06pbn">
key
</code>
.
</p>
</li>
</ul>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
mapReduce.ok
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-mapReduce.ok" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-mapReduce.ok">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
A value of
<code class="leafygreen-ui-1l06pbn">
1
</code>
indicates the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.mapReduce" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mapReduce
</code>
</span>
</a>
command ran
successfully. A value of
<code class="leafygreen-ui-1l06pbn">
0
</code>
indicates an error.
</p>
</dd>
</dl>
<p class="leafygreen-ui-1kp3ins">
In addition to the aforementioned command specific return fields, the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.runCommand/#mongodb-method-db.runCommand">
<code class="leafygreen-ui-1l06pbn">
db.runCommand()
</code>
</a>
includes additional information:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
for replica sets:
<code class="leafygreen-ui-1l06pbn">
$clusterTime
</code>
, and
<code class="leafygreen-ui-1l06pbn">
operationTime
</code>
.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
for sharded clusters:
<code class="leafygreen-ui-1l06pbn">
operationTime
</code>
and
<code class="leafygreen-ui-1l06pbn">
$clusterTime
</code>
.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.runCommand/#std-label-command-response">
db.runCommand Response
</a>
for details on
these fields.
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Additional Information
<a class="headerlink leafygreen-ui-1kepx47" href="#additional-information" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="additional-information">
</div>
</a>
</h2>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/troubleshoot-map-function/">
Troubleshoot the Map Function
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/troubleshoot-reduce-function/">
Troubleshoot the Reduce Function
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.mapReduce/#mongodb-method-db.collection.mapReduce">
<code class="leafygreen-ui-1l06pbn">
db.collection.mapReduce()
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/aggregation/#std-label-aggregation">
Aggregation Operations
</a>
</p>
</li>
</ul>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/operator/aggregation/dateToString/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
$dateToString (aggregation)
<a class="headerlink leafygreen-ui-1kepx47" href="#-datetostring--aggregation-" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="-datetostring--aggregation-">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#definition" target="_self">
<span>
Definition
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#format-specifiers" target="_self">
<span>
Format Specifiers
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#example" target="_self">
<span>
Example
</span>
</a>
</li>
</ul>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Definition
<a class="headerlink leafygreen-ui-1kepx47" href="#definition" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="definition">
</div>
</a>
</h2>
<dl class="expression">
<dt>
<code class="leafygreen-ui-1l06pbn">
$dateToString
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-expression-exp.-dateToString" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-expression-exp.-dateToString">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Converts a date object to a string according to a user-specified
format.
</p>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
$dateToString
</code>
expression has the following
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/#std-label-aggregation-expressions">
operator expression syntax
<!-- -->
:
</a>
</p>
</dd>
</dl>
<p class="leafygreen-ui-1kp3ins">
You can use
<code class="leafygreen-ui-1l06pbn">
$dateToString
</code>
for deployments hosted in the following
environments:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas?tck=docs_server" target="_self">
<span>
MongoDB Atlas
</span>
</a>
: The fully
managed service for MongoDB deployments in the cloud
</p>
</li>
</ul>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/install-enterprise/#std-label-install-mdb-enterprise">
MongoDB Enterprise
</a>
: The
subscription-based, self-managed version of MongoDB
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/install-community/#std-label-install-mdb-community-edition">
MongoDB Community
</a>
: The
source-available, free-to-use, and self-managed version of MongoDB
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-expression-exp.-dateToString" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$dateToString
</code>
</span>
</a>
expression has the following
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/#std-label-aggregation-expressions">
operator expression syntax
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ $dateToString: {\n date: <dateexpression>,\n format: <formatstring>,\n timezone: <tzexpression>,\n onNull: <expression>\n} }\n\n - The date to convert to string. ``<dateexpression>`` must be a\n valid :ref:`expression <aggregation-expressions>` that\n resolves to a :ref:`Date <document-bson-type-date>`, a\n :ref:`Timestamp <document-bson-type-timestamp>`, or an\n :ref:`ObjectID <document-bson-type-object-id>`.\n\n* - Field\n - Description\n\n - Optional. The date format specification. ``<formatstring>``\n can be any string literal, containing 0 or more format\n specifiers. For a list of specifiers available, see\n :ref:`format-specifiers`.\n\n If unspecified and the ``timezone`` is specified and set to a\n non UTC timezone, then ``$dateToString`` uses\n ``\"%Y-%m-%dT%H:%M:%S.%L\"`` as the default format.\n\n If unspecified and the ``timezone`` is unspecified or\n explicitly specified as UTC, then ``$dateToString`` uses\n ``\"%Y-%m-%dT%H:%M:%S.%LZ\"`` as the default format.\n\n The date to convert to string. ``<dateexpression>`` must be a\n valid :ref:`expression <aggregation-expressions>` that\n resolves to a :ref:`Date <document-bson-type-date>`, a\n :ref:`Timestamp <document-bson-type-timestamp>`, or an\n :ref:`ObjectID <document-bson-type-object-id>`.\n\n* - ``format``\n\n - Optional. The date format specification. ``<formatstring>`` can be any\n string literal, containing 0 or more format specifiers. For a\n list of specifiers available, see :ref:`format-specifiers`.\n\n If unspecified, :expression:`$dateToString` uses\n ``\"%Y-%m-%dT%H:%M:%S.%LZ\"`` as the default format.\n\n If unspecified, ``$dateToString`` returns null if the\n ``date`` is null or missing.","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-attr">$dateToString</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">date</span>: <<!-- -->dateExpression<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">format</span>: <<!-- -->formatString<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">timezone</span>: <<!-- -->tzExpression<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">onNull</span>: <<!-- -->expression<!-- -->></td></tr><tr class=""><td class="leafygreen-ui-7razhx">} }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->- <span class="lg-highlight-title lg-highlight-class">The</span> date to convert to string. <span class="lg-highlight-string">``</span><<!-- -->dateExpression<!-- -->><span class="lg-highlight-string">``</span> must be a</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> valid <!-- -->:<span class="lg-highlight-attr">ref</span>:<span class="lg-highlight-string">`expression <aggregation-expressions>`</span> that</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> resolves to a <!-- -->:<span class="lg-highlight-attr">ref</span>:<span class="lg-highlight-string">`Date <document-bson-type-date>`</span>, <!-- -->a</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->:<span class="lg-highlight-attr">ref</span>:<span class="lg-highlight-string">`Timestamp <document-bson-type-timestamp>`</span>, <!-- -->or an</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->:<span class="lg-highlight-attr">ref</span>:<span class="lg-highlight-string">`ObjectID <document-bson-type-object-id>`</span>.</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">* <!-- -->- <span class="lg-highlight-title lg-highlight-class">Field</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->- <span class="lg-highlight-title lg-highlight-class">Description</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->- <span class="lg-highlight-title lg-highlight-class">Optional</span>. <span class="lg-highlight-title lg-highlight-class">The</span> date format specification. <span class="lg-highlight-string">``</span><<!-- -->formatString<!-- -->><span class="lg-highlight-string">``</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> can be any string literal<!-- -->, <!-- -->containing <span class="lg-highlight-number">0</span> or more format</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> specifiers. <span class="lg-highlight-title lg-highlight-class">For</span> a list <span class="lg-highlight-keyword">of</span> specifiers available<!-- -->, <!-- -->see</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->:<span class="lg-highlight-attr">ref</span>:<span class="lg-highlight-string">`format-specifiers`</span>.</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-class">If</span> unspecified and the <span class="lg-highlight-string">``</span>timezone<span class="lg-highlight-string">``</span> is specified and set to a</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> non <span class="lg-highlight-variable lg-highlight-constant">UTC</span> timezone<!-- -->, <!-- -->then <span class="lg-highlight-string">``</span>$dateToString<span class="lg-highlight-string">``</span> uses</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">``</span><span class="lg-highlight-string">"%Y-%m-%dT%H:%M:%S.%L"</span><span class="lg-highlight-string">``</span> <span class="lg-highlight-keyword">as</span> the <span class="lg-highlight-keyword">default</span> format.</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-class">If</span> unspecified and the <span class="lg-highlight-string">``</span>timezone<span class="lg-highlight-string">``</span> is unspecified or</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> explicitly specified <span class="lg-highlight-keyword">as</span> <span class="lg-highlight-variable lg-highlight-constant">UTC</span>, <!-- -->then <span class="lg-highlight-string">``</span>$dateToString<span class="lg-highlight-string">``</span> uses</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">``</span><span class="lg-highlight-string">"%Y-%m-%dT%H:%M:%S.%LZ"</span><span class="lg-highlight-string">``</span> <span class="lg-highlight-keyword">as</span> the <span class="lg-highlight-keyword">default</span> format.</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-class">The</span> date to convert to string. <span class="lg-highlight-string">``</span><<!-- -->dateExpression<!-- -->><span class="lg-highlight-string">``</span> must be a</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> valid <!-- -->:<span class="lg-highlight-attr">ref</span>:<span class="lg-highlight-string">`expression <aggregation-expressions>`</span> that</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> resolves to a <!-- -->:<span class="lg-highlight-attr">ref</span>:<span class="lg-highlight-string">`Date <document-bson-type-date>`</span>, <!-- -->a</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->:<span class="lg-highlight-attr">ref</span>:<span class="lg-highlight-string">`Timestamp <document-bson-type-timestamp>`</span>, <!-- -->or an</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->:<span class="lg-highlight-attr">ref</span>:<span class="lg-highlight-string">`ObjectID <document-bson-type-object-id>`</span>.</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">* <!-- -->- <span class="lg-highlight-string">``</span>format<span class="lg-highlight-string">``</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->- <span class="lg-highlight-title lg-highlight-class">Optional</span>. <span class="lg-highlight-title lg-highlight-class">The</span> date format specification. <span class="lg-highlight-string">``</span><<!-- -->formatString<!-- -->><span class="lg-highlight-string">``</span> can be any</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> string literal<!-- -->, <!-- -->containing <span class="lg-highlight-number">0</span> or more format specifiers. <span class="lg-highlight-title lg-highlight-class">For</span> a</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> list <span class="lg-highlight-keyword">of</span> specifiers available<!-- -->, <!-- -->see <!-- -->:<span class="lg-highlight-attr">ref</span>:<span class="lg-highlight-string">`format-specifiers`</span>.</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-class">If</span> unspecified<!-- -->, <!-- -->:<span class="lg-highlight-attr">expression</span>:<span class="lg-highlight-string">`$dateToString`</span> uses</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">``</span><span class="lg-highlight-string">"%Y-%m-%dT%H:%M:%S.%LZ"</span><span class="lg-highlight-string">``</span> <span class="lg-highlight-keyword">as</span> the <span class="lg-highlight-keyword">default</span> format.</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-class">If</span> unspecified<!-- -->, <span class="lg-highlight-string">``</span>$dateToString<span class="lg-highlight-string">``</span> returns <span class="lg-highlight-literal">null</span> <span class="lg-highlight-keyword">if</span> the</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">``</span>date<span class="lg-highlight-string">``</span> is <span class="lg-highlight-literal">null</span> or missing.</td></tr></tbody></table></code></pre>
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<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
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<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/toString/#mongodb-expression-exp.-toString">
<code class="leafygreen-ui-1l06pbn">
$toString
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/convert/#mongodb-expression-exp.-convert">
<code class="leafygreen-ui-1l06pbn">
$convert
</code>
</a>
</p>
</li>
</ul>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-format-specifiers">
</span>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Format Specifiers
<a class="headerlink leafygreen-ui-1kepx47" href="#format-specifiers" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="format-specifiers">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The following format specifiers are available for use in the
<code class="leafygreen-ui-1l06pbn">
<formatString>
</code>
:
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:20%"/>
<col style="width:60%"/>
<col style="width:20%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Specifiers
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Possible Values
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
%b
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Abbreviated month name (3 letters)
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
7.0
</em>
.
</p>
</div>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
jan
</code>
-
<code class="leafygreen-ui-1l06pbn">
dec
</code>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
%B
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Full month name
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
7.0
</em>
.
</p>
</div>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
january
</code>
-
<code class="leafygreen-ui-1l06pbn">
december
</code>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
%d
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Day of month (2 digits, zero padded)
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
01
</code>
-
<code class="leafygreen-ui-1l06pbn">
31
</code>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
%G
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Year in ISO 8601 format
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
0000
</code>
-
<code class="leafygreen-ui-1l06pbn">
9999
</code>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
%H
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Hour (2 digits, zero padded, 24-hour clock)
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
00
</code>
-
<code class="leafygreen-ui-1l06pbn">
23
</code>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
%j
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Day of year (3 digits, zero padded)
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
001
</code>
-
<code class="leafygreen-ui-1l06pbn">
366
</code>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
%L
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Millisecond (3 digits, zero padded)
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
000
</code>
-
<code class="leafygreen-ui-1l06pbn">
999
</code>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
%m
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Month (2 digits, zero padded)
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
01
</code>
-
<code class="leafygreen-ui-1l06pbn">
12
</code>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
%M
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Minute (2 digits, zero padded)
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
00
</code>
-
<code class="leafygreen-ui-1l06pbn">
59
</code>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
%S
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Second (2 digits, zero padded)
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
00
</code>
-
<code class="leafygreen-ui-1l06pbn">
60
</code>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
%u
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Day of week number in ISO 8601 format (1-Monday, 7-Sunday)
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
1
</code>
-
<code class="leafygreen-ui-1l06pbn">
7
</code>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
%U
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Week of year (2 digits, zero padded)
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
00
</code>
-
<code class="leafygreen-ui-1l06pbn">
53
</code>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
%V
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Week of Year in ISO 8601 format
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
01
</code>
-
<code class="leafygreen-ui-1l06pbn">
53
</code>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
%w
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Day of week (1-Sunday, 7-Saturday)
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
1
</code>
-
<code class="leafygreen-ui-1l06pbn">
7
</code>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
%Y
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Year (4 digits, zero padded)
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
0000
</code>
-
<code class="leafygreen-ui-1l06pbn">
9999
</code>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
%z
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
The timezone offset from UTC.
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
+/-[hh][mm]
</code>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
%Z
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
The minutes offset from UTC as a number. For example, if the
timezone offset (
<code class="leafygreen-ui-1l06pbn">
+/-[hhmm]
</code>
) was
<code class="leafygreen-ui-1l06pbn">
+0445
</code>
, the minutes
offset is
<code class="leafygreen-ui-1l06pbn">
+285
</code>
.
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
+/-mmm
</code>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
%%
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Percent Character as a Literal
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
%
</code>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Example
<a class="headerlink leafygreen-ui-1kepx47" href="#example" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="example">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
Consider a
<code class="leafygreen-ui-1l06pbn">
sales
</code>
collection with the following document:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n \"_id\" : 1,\n \"item\" : \"abc\",\n \"price\" : 10,\n \"quantity\" : 2,\n \"date\" : ISODate(\"2014-01-01T08:15:39.736Z\")\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"item"</span> <!-- -->: <span class="lg-highlight-string">"abc"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">10</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"quantity"</span> <!-- -->: <span class="lg-highlight-number">2</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2014-01-01T08:15:39.736Z"</span>)</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The following aggregation uses
<code class="leafygreen-ui-1l06pbn">
$dateToString
</code>
to
return the
<code class="leafygreen-ui-1l06pbn">
date
</code>
field as formatted strings:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.sales.aggregate(\n [\n {\n $project: {\n yearMonthDayUTC: { $dateToString: { format: \"%Y-%m-%d\", date: \"$date\" } },\n timewithOffsetNY: { $dateToString: { format: \"%H:%M:%S:%L%z\", date: \"$date\", timezone: \"America/New_York\"} },\n timewithOffset430: { $dateToString: { format: \"%H:%M:%S:%L%z\", date: \"$date\", timezone: \"+04:30\" } },\n minutesOffsetNY: { $dateToString: { format: \"%Z\", date: \"$date\", timezone: \"America/New_York\" } },\n minutesOffset430: { $dateToString: { format: \"%Z\", date: \"$date\", timezone: \"+04:30\" } },\n abbreviated_month: { $dateToString: {format: \"%b\", date: \"$date\", timezone: \"+04:30\" } },\n full_month: { $dateToString: { format: \"%B\", date: \"$date\", timezone: \"+04:30\" } }\n }\n }\n ]\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">sales</span>.<span class="lg-highlight-title lg-highlight-function">aggregate</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">$project</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">yearMonthDayUTC</span>: <!-- -->{ <span class="lg-highlight-attr">$dateToString</span>: <!-- -->{ <span class="lg-highlight-attr">format</span>: <span class="lg-highlight-string">"%Y-%m-%d"</span>, <span class="lg-highlight-attr">date</span>: <span class="lg-highlight-string">"$date"</span> } }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">timewithOffsetNY</span>: <!-- -->{ <span class="lg-highlight-attr">$dateToString</span>: <!-- -->{ <span class="lg-highlight-attr">format</span>: <span class="lg-highlight-string">"%H:%M:%S:%L%z"</span>, <span class="lg-highlight-attr">date</span>: <span class="lg-highlight-string">"$date"</span>, <span class="lg-highlight-attr">timezone</span>: <span class="lg-highlight-string">"America/New_York"</span>} }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">timewithOffset430</span>: <!-- -->{ <span class="lg-highlight-attr">$dateToString</span>: <!-- -->{ <span class="lg-highlight-attr">format</span>: <span class="lg-highlight-string">"%H:%M:%S:%L%z"</span>, <span class="lg-highlight-attr">date</span>: <span class="lg-highlight-string">"$date"</span>, <span class="lg-highlight-attr">timezone</span>: <span class="lg-highlight-string">"+04:30"</span> } }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">minutesOffsetNY</span>: <!-- -->{ <span class="lg-highlight-attr">$dateToString</span>: <!-- -->{ <span class="lg-highlight-attr">format</span>: <span class="lg-highlight-string">"%Z"</span>, <span class="lg-highlight-attr">date</span>: <span class="lg-highlight-string">"$date"</span>, <span class="lg-highlight-attr">timezone</span>: <span class="lg-highlight-string">"America/New_York"</span> } }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">minutesOffset430</span>: <!-- -->{ <span class="lg-highlight-attr">$dateToString</span>: <!-- -->{ <span class="lg-highlight-attr">format</span>: <span class="lg-highlight-string">"%Z"</span>, <span class="lg-highlight-attr">date</span>: <span class="lg-highlight-string">"$date"</span>, <span class="lg-highlight-attr">timezone</span>: <span class="lg-highlight-string">"+04:30"</span> } }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">abbreviated_month</span>: <!-- -->{ <span class="lg-highlight-attr">$dateToString</span>: <!-- -->{<span class="lg-highlight-attr">format</span>: <span class="lg-highlight-string">"%b"</span>, <span class="lg-highlight-attr">date</span>: <span class="lg-highlight-string">"$date"</span>, <span class="lg-highlight-attr">timezone</span>: <span class="lg-highlight-string">"+04:30"</span> } }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">full_month</span>: <!-- -->{ <span class="lg-highlight-attr">$dateToString</span>: <!-- -->{ <span class="lg-highlight-attr">format</span>: <span class="lg-highlight-string">"%B"</span>, <span class="lg-highlight-attr">date</span>: <span class="lg-highlight-string">"$date"</span>, <span class="lg-highlight-attr">timezone</span>: <span class="lg-highlight-string">"+04:30"</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The operation returns the following result:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n \"_id\" : 1,\n \"yearMonthDayUTC\" : \"2014-01-01\",\n \"timewithOffsetNY\" : \"03:15:39:736-0500\",\n \"timewithOffset430\" : \"12:45:39:736+0430\",\n \"minutesOffsetNY\" : \"-300\",\n \"minutesOffset430\" : \"270\",\n \"abbreviated_month\": \"Jan\",\n \"full_month\": \"January\"\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"yearMonthDayUTC"</span> <!-- -->: <span class="lg-highlight-string">"2014-01-01"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"timewithOffsetNY"</span> <!-- -->: <span class="lg-highlight-string">"03:15:39:736-0500"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"timewithOffset430"</span> <!-- -->: <span class="lg-highlight-string">"12:45:39:736+0430"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"minutesOffsetNY"</span> <!-- -->: <span class="lg-highlight-string">"-300"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"minutesOffset430"</span> <!-- -->: <span class="lg-highlight-string">"270"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"abbreviated_month"</span>: <span class="lg-highlight-string">"Jan"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"full_month"</span>: <span class="lg-highlight-string">"January"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</div>
</section>
</section>
|
https://www.mongodb.com/docs/manual/core/write-operations-atomicity/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Atomicity and Transactions
<a class="headerlink leafygreen-ui-1kepx47" href="#atomicity-and-transactions" title="Permalink to this heading">
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<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="atomicity-and-transactions">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#atomicity" target="_self">
<span>
Atomicity
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#multi-document-transactions" target="_self">
<span>
Multi-Document Transactions
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#concurrency-control" target="_self">
<span>
Concurrency Control
</span>
</a>
</li>
</ul>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Atomicity
<a class="headerlink leafygreen-ui-1kepx47" href="#atomicity" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="atomicity">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
In MongoDB, a write operation is
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-atomic-operation">
atomic
</a>
on
the level of a single document, even if the operation modifies multiple
embedded documents
<em>
within
</em>
a single document.
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Multi-Document Transactions
<a class="headerlink leafygreen-ui-1kepx47" href="#multi-document-transactions" title="Permalink to this heading">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="multi-document-transactions">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
When a single write operation (e.g.
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.updateMany/#mongodb-method-db.collection.updateMany">
<code class="leafygreen-ui-1l06pbn">
db.collection.updateMany()
</code>
</a>
) modifies multiple documents,
the modification of each document is atomic, but the operation as a
whole is not atomic.
</p>
<p class="leafygreen-ui-1kp3ins">
When performing multi-document write operations, whether through a
single write operation or multiple write operations, other
operations may interleave.
</p>
<p class="leafygreen-ui-1kp3ins">
For situations that require atomicity of reads and writes to multiple
documents (in a single or multiple collections), MongoDB supports
distributed transactions, including transactions on replica sets and
sharded clusters.
</p>
<p class="leafygreen-ui-1kp3ins">
For more information, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/transactions/#std-label-transactions">
transactions
</a>
</p>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
In most cases, a distributed transaction incurs a greater
performance cost over single document writes, and the
availability of distributed transactions should not be a
replacement for effective schema design. For many scenarios, the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/data-modeling/concepts/embedding-vs-references/#std-label-data-modeling-embedding">
denormalized data model (embedded documents and arrays)
</a>
will continue to be optimal for your
data and use cases. That is, for many scenarios, modeling your data
appropriately will minimize the need for distributed
transactions.
</p>
<p class="leafygreen-ui-1kp3ins">
For additional transactions usage considerations
(such as runtime limit and oplog size limit), see also
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/transactions-production-consideration/#std-label-production-considerations">
Production Considerations
<!-- -->
.
</a>
</p>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-concurrency-control">
</span>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Concurrency Control
<a class="headerlink leafygreen-ui-1kepx47" href="#concurrency-control" title="Permalink to this heading">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="concurrency-control">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
Concurrency control allows multiple applications to run concurrently
without causing data inconsistency or conflicts.
</p>
<p class="leafygreen-ui-1kp3ins">
A
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/findAndModify/#mongodb-dbcommand-dbcmd.findAndModify">
<code class="leafygreen-ui-1l06pbn">
findAndModify
</code>
</a>
operation on a document is
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-atomic-operation">
atomic
</a>
: if the find condition matches a document, the
update is performed on that document. Concurrent queries and additional
updates on that document are not affected until the current update is
complete.
</p>
<p class="leafygreen-ui-1kp3ins">
Consider the following example:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
A collection with two documents:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.myCollection.insertMany( [\n { _id: 0, a: 1, b: 1 },\n { _id: 1, a: 1, b: 1 }\n] )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">myCollection</span>.<span class="lg-highlight-title lg-highlight-function">insertMany</span>( <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">0</span>, <span class="lg-highlight-attr">a</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-attr">b</span>: <span class="lg-highlight-number">1</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-attr">a</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-attr">b</span>: <span class="lg-highlight-number">1</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">] )</td></tr></tbody></table></code></pre>
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<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Two of the following
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/findAndModify/#mongodb-dbcommand-dbcmd.findAndModify">
<code class="leafygreen-ui-1l06pbn">
findAndModify
</code>
</a>
operations run
concurrently:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.myCollection.findAndModify( {\n query: { a: 1 },\n update: { $inc: { b: 1 }, $set: { a: 2 } }\n} )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">myCollection</span>.<span class="lg-highlight-title lg-highlight-function">findAndModify</span>( <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">query</span>: <!-- -->{ <span class="lg-highlight-attr">a</span>: <span class="lg-highlight-number">1</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">update</span>: <!-- -->{ <span class="lg-highlight-attr">$inc</span>: <!-- -->{ <span class="lg-highlight-attr">b</span>: <span class="lg-highlight-number">1</span> }<!-- -->, <span class="lg-highlight-attr">$set</span>: <!-- -->{ <span class="lg-highlight-attr">a</span>: <span class="lg-highlight-number">2</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">} )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
After the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/findAndModify/#mongodb-dbcommand-dbcmd.findAndModify">
<code class="leafygreen-ui-1l06pbn">
findAndModify
</code>
</a>
operations are complete, it is
guaranteed that
<code class="leafygreen-ui-1l06pbn">
a
</code>
and
<code class="leafygreen-ui-1l06pbn">
b
</code>
in both documents are set to
<code class="leafygreen-ui-1l06pbn">
2
</code>
.
</p>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.findAndModify/#std-label-findAndModify-upsert-example">
findAndModify() Upsert Example
</a>
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
You can also create a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/index-unique/#std-label-index-type-unique">
unique index
</a>
on a field
so that it can only have unique values. This prevents inserts and
updates from creating duplicate data. You can create a unique index
on multiple fields to ensure the combination of field values is unique.
For an example, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.findAndModify/#std-label-upsert-and-unique-index">
findAndModify() Upsert with Unique Index
<!-- -->
.
</a>
</p>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/read-isolation-consistency-recency/">
Read Isolation, Consistency, and Recency
</a>
</p>
</div>
</div>
</section>
</section>
|
https://www.mongodb.com/docs/manual/tutorial/configure-ssl-clients/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
TLS/SSL Configuration for Clients
<a class="headerlink leafygreen-ui-1kepx47" href="#tls-ssl-configuration-for-clients" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="tls-ssl-configuration-for-clients">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#mongodb-shell" target="_self">
<span>
MongoDB Shell
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#atlas--mms-and-mongodb-ops-manager" target="_self">
<span>
MongoDB Atlas
<!-- -->
,
<!-- -->
MongoDB Cloud Manager
<!-- -->
and MongoDB Ops Manager
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#mongodb-drivers" target="_self">
<span>
MongoDB Drivers
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#mongodb-tools" target="_self">
<span>
MongoDB Tools
</span>
</a>
</li>
</ul>
</div>
<p class="leafygreen-ui-1kp3ins">
Clients must have support for TLS/SSL to connect to a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
or a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instance that require
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/configure-ssl/#std-label-configure-mongod-mongos-for-tls-ssl">
TLS/SSL connections
<!-- -->
.
</a>
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<em>
Linux 64-bit legacy x64
</em>
binaries of MongoDB do
<strong>
not
</strong>
include
support for TLS/SSL.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
MongoDB
<!-- -->
disables support for TLS 1.0
encryption on systems where TLS 1.1+ is available.
</p>
</li>
</ul>
</div>
</div>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
A full description of TLS/SSL, PKI (Public Key Infrastructure) certificates, and Certificate Authority is beyond the scope of this document.
This page assumes prior knowledge of TLS/SSL as well as access to valid certificates.
</p>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-mongo-shell-tls-connect">
</span>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
MongoDB Shell
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-shell" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-shell">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
provides various TLS/SSL settings,
including:
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:30%"/>
<col style="width:70%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
TLS Option
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Notes
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/options/#std-option-mongosh.--tls" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
--tls
</code>
</span>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Enables TLS/SSL connection.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/options/#std-option-mongosh.--tlsCertificateKeyFile" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
--tlsCertificateKeyFile
</code>
</span>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Specifies the
<code class="file docutils literal">
<span class="pre">
.pem
</span>
</code>
file that contains
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
's certificate and key to present to
the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instance.
This option is mutually exclusive with
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/options/#std-option-mongosh.--tlsCertificateSelector" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
--tlsCertificateSelector
</code>
</span>
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
/
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
logs a warning on
connection if the presented x.509 certificate expires within
<code class="leafygreen-ui-1l06pbn">
30
</code>
days of the
<code class="leafygreen-ui-1l06pbn">
mongod/mongos
</code>
host system time.
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/options/#std-option-mongosh.--tlsCertificateKeyFilePassword" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
--tlsCertificateKeyFilePassword
</code>
</span>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
If
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
's certificate key file is encrypted.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/options/#std-option-mongosh.--tlsCAFile" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
--tlsCAFile
</code>
</span>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Specifies the Certificate Authority (CA)
<code class="file docutils literal">
<span class="pre">
.pem
</span>
</code>
file for
verification of the certificate presented by the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
or the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instance.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/options/#std-option-mongosh.--tlsCertificateSelector" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
--tlsCertificateSelector
</code>
</span>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
If running on Windows or macOS, use a certificate from the
system certificate store.
</p>
<p class="leafygreen-ui-1kp3ins">
This option is mutually exclusive with
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/options/#std-option-mongosh.--tlsCertificateKeyFile" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
--tlsCertificateKeyFile
</code>
.
</span>
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
/
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
logs a warning on
connection if the presented x.509 certificate expires within
<code class="leafygreen-ui-1l06pbn">
30
</code>
days of the
<code class="leafygreen-ui-1l06pbn">
mongod/mongos
</code>
host system time.
</p>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<p class="leafygreen-ui-1kp3ins">
For a complete list of
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
's
<code class="leafygreen-ui-1l06pbn">
tls
</code>
options, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/options/#tls-options" target="_self">
<span>
TLS options
<!-- -->
.
</span>
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
For TLS/SSL connections,
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
validates the
certificate presented by the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instance:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
verifies that the certificate is from
the specified Certificate Authority (
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/options/#std-option-mongosh.--tlsCAFile" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
--tlsCAFile
</code>
</span>
</a>
. If the certificate is not from the specified CA,
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
will fail to connect.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
verifies that the hostname (specified
in
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/options/#std-option-mongosh.--host" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
--host
</code>
</span>
</a>
option or the connection string)
matches the
<code class="leafygreen-ui-1l06pbn">
SAN
</code>
(or, if
<code class="leafygreen-ui-1l06pbn">
SAN
</code>
is not present, the
<code class="leafygreen-ui-1l06pbn">
CN
</code>
) in
the certificate presented by the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
. If
<code class="leafygreen-ui-1l06pbn">
SAN
</code>
is present,
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
does not match against the
<code class="leafygreen-ui-1l06pbn">
CN
</code>
. If the hostname does not match
the
<code class="leafygreen-ui-1l06pbn">
SAN
</code>
(or
<code class="leafygreen-ui-1l06pbn">
CN
</code>
),
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
will fail to
connect.
</p>
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 4.2, when performing comparison of SAN, MongoDB
supports comparison of DNS names or IP addresses. In previous versions,
MongoDB only supports comparisons of DNS names.
</p>
<p class="leafygreen-ui-1kp3ins">
To connect
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
to a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
that requires TLS/SSL, specify the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/options/#std-option-mongosh.--host" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
--host
</code>
</span>
</a>
option or use a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/connection-string/">
connection
string
</a>
to specify the hostname. All
other
<code class="leafygreen-ui-1l06pbn">
TLS/SSL
</code>
options must be specified using the command-line
options.
</p>
</li>
</ul>
<span class="leafygreen-ui-1qnjd6d" id="std-label-tls-client-connection-only">
</span>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Connect to MongoDB Instances Using Encryption
<a class="headerlink leafygreen-ui-1kepx47" href="#connect-to-mongodb-instances-using-encryption" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="connect-to-mongodb-instances-using-encryption">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
To connect to a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instance
that requires
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/configure-ssl/#std-label-ssl-mongod-ssl-cert-key">
encrypted communication
</a>
,
start
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
with:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/options/#std-option-mongosh.--tls" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
--tls
</code>
</span>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/options/#std-option-mongosh.--host" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
--host
</code>
</span>
</a>
and
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/options/#std-option-mongosh.--tlsCAFile" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
--tlsCAFile
</code>
</span>
</a>
to validate the server certificate.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
For example, consider a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
instance running on
<code class="leafygreen-ui-1l06pbn">
hostname.example.com
</code>
with the following options:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"mongod --tlsMode requireTLS --tlsCertificateKeyFile <pem>","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">mongod --tlsMode requireTLS --tlsCertificateKeyFile <pem></td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To connect to the instance, start
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
with
the following options:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"mongosh --tls --host hostname.example.com --tlsCAFile /etc/ssl/caToValidateServerCertificates.pem","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">mongosh --tls --host hostname.example.com --tlsCAFile <!-- -->/etc/ssl/ca<!-- -->ToValidateServerCertificates.pem</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
verifies the certificate presented by
the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
instance against the specified hostname and
the CA file.
</p>
<span class="leafygreen-ui-1qnjd6d" id="std-label-mongo-connect-require-client-certificates-tls">
</span>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Connect to MongoDB Instances that Require Client Certificates
<a class="headerlink leafygreen-ui-1kepx47" href="#connect-to-mongodb-instances-that-require-client-certificates" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="connect-to-mongodb-instances-that-require-client-certificates">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
To connect to a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
that
requires
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/configure-ssl/#std-label-ssl-mongod-ca-signed-ssl-cert-key">
CA-signed client certificates
</a>
, start
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
with:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/options/#std-option-mongosh.--tls" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
--tls
</code>
</span>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/options/#std-option-mongosh.--host" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
--host
</code>
</span>
</a>
and the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/options/#std-option-mongosh.--tlsCAFile" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
--tlsCAFile
</code>
</span>
</a>
to validate the server certificate,
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/options/#std-option-mongosh.--tlsCertificateKeyFile" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
--tlsCertificateKeyFile
</code>
</span>
</a>
option to specify
the client certificate to present to the server.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
For example, consider a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
instance running on
<code class="leafygreen-ui-1l06pbn">
hostname.example.com
</code>
with the following options:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"mongod --tlsMode requireTLS --tlsCertificateKeyFile /etc/ssl/mongodb.pem --tlsCAFile /etc/ssl/caToValidateClientCertificates.pem","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">mongod --tlsMode requireTLS --tlsCertificateKeyFile <!-- -->/etc/ssl/mongodb.pem<!-- --> --tlsCAFile <!-- -->/etc/ssl/ca<!-- -->ToValidateClientCertificates.pem</td></tr></tbody></table></code></pre>
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</div>
<p class="leafygreen-ui-1kp3ins">
To connect to the instance, start
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
with the
following options:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"mongosh --tls --host hostname.example.com --tlsCertificateKeyFile /etc/ssl/client.pem --tlsCAFile /etc/ssl/caToValidateServerCertificates.pem","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">mongosh --tls --host hostname.example.com --tlsCertificateKeyFile <!-- -->/etc/ssl/client.pem<!-- --> --tlsCAFile <!-- -->/etc/ssl/ca<!-- -->ToValidateServerCertificates.pem</td></tr></tbody></table></code></pre>
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</div>
</div>
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Windows and macOS
<a class="headerlink leafygreen-ui-1kepx47" href="#windows-and-macos" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="windows-and-macos">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
To specify a client certificate from the system certificate store, use
the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/options/#std-option-mongosh.--tlsCertificateSelector" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
--tlsCertificateSelector
</code>
</span>
</a>
option instead of
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/options/#std-option-mongosh.--tlsCertificateKeyFile" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
--tlsCertificateKeyFile
</code>
.
</span>
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
If the CA file is also in the system certificate store, you can omit the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/options/#std-option-mongosh.--tlsCAFile" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
--tlsCAFile
</code>
</span>
</a>
option.
</p>
<p class="leafygreen-ui-1kp3ins">
For example, if a certificate with the
<code class="leafygreen-ui-1l06pbn">
CN
</code>
(Common Name) of
<code class="leafygreen-ui-1l06pbn">
myclient.example.net
</code>
and the accompanying CA file are both in the
macOS system certificate store, you can connect like this:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"mongosh --tls --host hostname.example.com --tlsCertificateSelector subject=\"myclient.example.net\"","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">mongosh --tls --host hostname.example.com --tlsCertificateSelector subject=<span class="lg-highlight-string">"myclient.example.net"</span></td></tr></tbody></table></code></pre>
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</div>
<p class="leafygreen-ui-1kp3ins">
There are available in
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
, but you should use the
<code class="leafygreen-ui-1l06pbn">
tls
</code>
alternatives instead.
</p>
</section>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Avoid Use of
<code class="leafygreen-ui-1l06pbn">
--tlsAllowInvalidCertificates
</code>
Option
<a class="headerlink leafygreen-ui-1kepx47" href="#avoid-use-of---tlsallowinvalidcertificates-option" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="avoid-use-of---tlsallowinvalidcertificates-option">
</div>
</a>
</h3>
<div class="leafygreen-ui-1sjx7ru" role="note">
<h2 class="leafygreen-ui-29m78u">
Warning
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Although available, avoid using the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/options/#std-option-mongosh.--tlsAllowInvalidCertificates" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
--tlsAllowInvalidCertificates
</code>
</span>
</a>
option if possible. If the use of
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/options/#std-option-mongosh.--tlsAllowInvalidCertificates" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
--tlsAllowInvalidCertificates
</code>
</span>
</a>
is necessary, only use the option on
systems where intrusion is not possible.
</p>
<p class="leafygreen-ui-1kp3ins">
If
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
runs with the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/options/#std-option-mongosh.--tlsAllowInvalidCertificates" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
--tlsAllowInvalidCertificates
</code>
</span>
</a>
option,
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
will not attempt to validate the server certificates. This
creates a vulnerability to expired
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
certificates as well as to foreign processes
posing as valid
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instances. If you only need to disable the validation of the
hostname in the TLS/SSL certificates, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/options/#std-option-mongosh.--tlsAllowInvalidHostnames" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
--tlsAllowInvalidHostnames
</code>
.
</span>
</a>
</p>
</div>
</div>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
MongoDB Atlas
<!-- -->
,
<!-- -->
MongoDB Cloud Manager
<!-- -->
and MongoDB Ops Manager
<a class="headerlink leafygreen-ui-1kepx47" href="#atlas--mms-and-mongodb-ops-manager" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="atlas--mms-and-mongodb-ops-manager">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
MongoDB Atlas
<!-- -->
uses TLS/SSL to encrypt the connections to your databases.
</p>
<p class="leafygreen-ui-1kp3ins">
The
<!-- -->
MongoDB Cloud Manager
<!-- -->
and Ops Manager Monitoring agents use encrypted communication
to gather its statistics. Because the agents already encrypt
communications to the
<!-- -->
MongoDB Cloud Manager
<!-- -->
/Ops Manager servers, this is just a matter
of enabling TLS/SSL support in
<!-- -->
MongoDB Cloud Manager
<!-- -->
/Ops Manager on a per host basis.
</p>
<p class="leafygreen-ui-1kp3ins">
For more information, see:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://docs.atlas.mongodb.com/setup-cluster-security/" target="_self">
<span>
MongoDB Atlas documentation
</span>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/cloud-manager/" target="_self">
<span>
MongoDB Cloud Manager documentation
</span>
</a>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/ops-manager/current/" target="_self">
<span>
MongoDB Ops Manager documentation
<!-- -->
.
</span>
</a>
</p>
</li>
</ul>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
MongoDB Drivers
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-drivers" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-drivers">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The MongoDB Drivers support encrypted communication. For details, see:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/languages/c/c-driver/current/libmongoc/guides/configuring_tls/" target="_self">
<span>
C Driver
</span>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/languages/cpp/cpp-driver/current/configuration/#configuring-tls-ssl" target="_self">
<span>
C++ Driver
</span>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/drivers/csharp/current/fundamentals/connection/tls/" target="_self">
<span>
C# Driver
</span>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/drivers/java/sync/current/fundamentals/connection/tls/" target="_self">
<span>
Java Driver
</span>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/drivers/node/current/fundamentals/connection/tls/" target="_self">
<span>
Node.js Driver
</span>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://php.net/manual/en/mongodb-driver-manager.construct.php" rel="noopener noreferrer">
<span>
PHP Driver
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/languages/python/pymongo-driver/current/connect/tls/" target="_self">
<span>
Python Driver
</span>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/ruby-driver/current/reference/authentication/#client-certificate--x.509-" target="_self">
<span>
Ruby Driver
</span>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/languages/scala/scala-driver/current/tutorials/connect/tls/" target="_self">
<span>
Scala Driver
</span>
</a>
</p>
</li>
</ul>
<span class="leafygreen-ui-1qnjd6d" id="std-label-mongodb-tools-support-ssl">
</span>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
MongoDB Tools
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-tools" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-tools">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
Various MongoDB utility programs support encrypted communication. These
tools include:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/database-tools/mongodump/#mongodb-binary-bin.mongodump" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongodump
</code>
</span>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/database-tools/mongoexport/#mongodb-binary-bin.mongoexport" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongoexport
</code>
</span>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/database-tools/mongofiles/#mongodb-binary-bin.mongofiles" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongofiles
</code>
</span>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/database-tools/mongoimport/#mongodb-binary-bin.mongoimport" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongoimport
</code>
</span>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/database-tools/mongorestore/#mongodb-binary-bin.mongorestore" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongorestore
</code>
</span>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/database-tools/mongostat/#mongodb-binary-bin.mongostat" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongostat
</code>
</span>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/database-tools/mongotop/#mongodb-binary-bin.mongotop" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongotop
</code>
</span>
</a>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
To use encrypted communication with these tools, use the same
<code class="leafygreen-ui-1l06pbn">
tls
</code>
options as
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
. See
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-mongo-shell-tls-connect" target="_self">
<span>
MongoDB Shell
<!-- -->
.
</span>
</a>
</p>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/configure-ssl/#std-label-configure-mongod-mongos-for-tls-ssl">
Configure
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
and
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
for TLS/SSL
</a>
</p>
</div>
</div>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/system-collections/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
System Collections
<a class="headerlink leafygreen-ui-1kepx47" href="#system-collections" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="system-collections">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#synopsis" target="_self">
<span>
Synopsis
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#collections" target="_self">
<span>
Collections
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#database-specific-collections" target="_self">
<span>
Database-Specific Collections
</span>
</a>
</li>
</ul>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Synopsis
<a class="headerlink leafygreen-ui-1kepx47" href="#synopsis" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="synopsis">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
MongoDB stores system information in collections that use the
<code class="leafygreen-ui-1l06pbn">
<database>.system.*
</code>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-namespace">
namespace
</a>
, which MongoDB reserves for
internal use. Do not create collections that begin with
<code class="leafygreen-ui-1l06pbn">
system
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
MongoDB also stores some additional instance-local metadata in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/local-database/#std-label-replica-set-local-database">
local database
</a>
<code class="leafygreen-ui-1l06pbn">
local.replset.*
</code>
namespace, specifically for replication purposes and in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/config-database/#std-label-config-database">
config
database
</a>
for
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/read-isolation-consistency-recency/#std-label-sessions">
sessions information
<!-- -->
.
</a>
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Collections
<a class="headerlink leafygreen-ui-1kepx47" href="#collections" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="collections">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
System collections include these collections stored in the
<code class="leafygreen-ui-1l06pbn">
admin
</code>
database:
</p>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
admin.system.roles
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-admin.system.roles" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-admin.system.roles">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-admin.system.roles" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
admin.system.roles
</code>
</span>
</a>
collection stores custom roles that
administrators create and assign to users to provide access to
specific resources.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
admin.system.users
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-admin.system.users" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-admin.system.users">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-admin.system.users" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
admin.system.users
</code>
</span>
</a>
collection stores the user's
authentication credentials as well as any roles assigned to the user.
Users may define authorization roles in the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-admin.system.roles" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
admin.system.roles
</code>
</span>
</a>
collection.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
admin.system.version
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-admin.system.version" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-admin.system.version">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-admin.system.version" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
admin.system.version
</code>
</span>
</a>
collection stores metadata to
support internal operations. Do not modify this collection unless
specifically instructed to in this documentation or by a MongoDB
support engineer.
</p>
</dd>
</dl>
<p class="leafygreen-ui-1kp3ins">
System collections include these collections stored in the
<code class="leafygreen-ui-1l06pbn">
config
</code>
database:
</p>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
config.system.indexBuilds
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-config.system.indexBuilds" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-config.system.indexBuilds">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-config.system.indexBuilds" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
indexBuilds
</code>
</span>
</a>
collection stores
information related to in-progress index builds.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
config.system.preimages
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-config.system.preimages" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-config.system.preimages">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Stores previous versions of modified documents from collections with
the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.createCollection/#std-label-db.createCollection.changeStreamPreAndPostImages">
changeStreamPreAndPostImages
</a>
option enabled.
The
<code class="leafygreen-ui-1l06pbn">
config.system.preimages
</code>
collection is automatically
purged when the pre-images expire. For details, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/cluster-parameters/changeStreamOptions/#mongodb-parameter-param.changeStreamOptions.preAndPostImages.expireAfterSeconds">
<code class="leafygreen-ui-1l06pbn">
changeStreamOptions.preAndPostImages.expireAfterSeconds
</code>
.
</a>
</p>
</dd>
</dl>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Database-Specific Collections
<a class="headerlink leafygreen-ui-1kepx47" href="#database-specific-collections" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="database-specific-collections">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
System collections also include these collections stored directly in
each database:
</p>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
<database>.system.buckets
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data--database-.system.buckets" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data--database-.system.buckets">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Stores the underlying data associated to a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/timeseries-collections/#std-label-manual-timeseries-collection">
time series
collection
</a>
. The
<code class="leafygreen-ui-1l06pbn">
system.buckets
</code>
collection stores data in an optimized format and schema for an
efficient representation of the persisted time series data.
</p>
<p class="leafygreen-ui-1kp3ins">
Do not modify this collection.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
<database>.system.profile
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data--database-.system.profile" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data--database-.system.profile">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data--database-.system.profile" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
<database>.system.profile
</code>
</span>
</a>
collection stores database
profiling information. For information on profiling, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/manage-the-database-profiler/#std-label-database-profiling">
Database Profiler
<!-- -->
.
</a>
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
<database>.system.js
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data--database-.system.js" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data--database-.system.js">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data--database-.system.js" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
<database>.system.js
</code>
</span>
</a>
collection stores special JavaScript
code for use in
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/server-side-javascript/#std-label-server-side-javascript">
server side JavaScript
</a>
. See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/store-javascript-function-on-server/">
Store a JavaScript Function on the Server
</a>
for more
information.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
<database>.system.views
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data--database-.system.views" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data--database-.system.views">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data--database-.system.views" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
<database>.system.views
</code>
</span>
</a>
collection contains
information about each
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/views/#std-label-views-landing-page">
view
</a>
in the database.
</p>
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 5.0, for
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/setFeatureCompatibilityVersion/#std-label-view-fcv">
featureCompatibilityVersion
</a>
set to
<code class="leafygreen-ui-1l06pbn">
"5.0"
</code>
or greater, users can no longer write
directly to the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data--database-.system.views" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
<database>.system.views
</code>
</span>
</a>
collection.
</p>
</dd>
</dl>
</section>
</section>
</section>
|
https://www.mongodb.com/docs/manual/tutorial/store-javascript-function-on-server/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Store a JavaScript Function on the Server
<a class="headerlink leafygreen-ui-1kepx47" href="#store-a-javascript-function-on-the-server" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="store-a-javascript-function-on-the-server">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#before-you-begin" target="_self">
<span>
Before you Begin
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#about-this-task" target="_self">
<span>
About this Task
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#steps" target="_self">
<span>
Steps
</span>
</a>
</li>
</ul>
</div>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 8.0, server side JavaScript is deprecated.
<code class="leafygreen-ui-1l06pbn">
system.js
</code>
functionality may not work with all features.
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
There is a special system collection named
<code class="leafygreen-ui-1l06pbn">
system.js
</code>
that can
store JavaScript functions for reuse.
</p>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Before you Begin
<a class="headerlink leafygreen-ui-1kepx47" href="#before-you-begin" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="before-you-begin">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
This task uses the legacy
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/mongo/#mongodb-binary-bin.mongo">
<code class="leafygreen-ui-1l06pbn">
mongo
</code>
</a>
shell to load server side
functions from the
<code class="leafygreen-ui-1l06pbn">
system.js
</code>
collection. This version of the shell
is no longer supported. For an alternative solution in the MongoDB
Shell, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/write-scripts/#std-label-mdb-shell-write-scripts" target="_self">
<span>
Write Scripts
<!-- -->
.
</span>
</a>
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
About this Task
<a class="headerlink leafygreen-ui-1kepx47" href="#about-this-task" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="about-this-task">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
Consider the follow recommendations when using
<code class="leafygreen-ui-1l06pbn">
system.js
</code>
:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Do not store application logic in the database.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
There are performance limitations to running JavaScript inside of
MongoDB.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Application code is most effective when it shares version
control with the application.
</p>
</li>
</ul>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Steps
<a class="headerlink leafygreen-ui-1kepx47" href="#steps" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
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</path>
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</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="steps">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
To store a function, insert the function into the
<code class="leafygreen-ui-1l06pbn">
system.js
</code>
collection, as in these examples:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"HowTo","steps":[{"@type":"HowToStep","text":"Create a test collection"},{"@type":"HowToStep","text":"To store JavaScript functions in the database, insert a document\nwith these fields:The _id field holds the name of the function and is unique\nper database.The value field holds the function definition.The following example creates an echo\nfunction in the system.js collection:The following example creates an isEven function\nin the system.js collection:These functions, saved as BSON type, are available\nfor use from any JavaScript context, such as mapReduce and\n$where.Functions saved as the deprecated BSON type JavaScript (with\nscope), cannot be used by\nmapReduce and $where.","name":"Store JavaScript functions in the database"},{"@type":"HowToStep","text":"Load the stored JavaScript functions into the shell"},{"@type":"HowToStep","text":"The following code example runs the echo function\nstored in system.js:The following code example runs the isEven\nfunction stored in system.js in the $where\noperator on the test_numbers collection:","name":"Run the stored JavaScript functions"}],"name":"Steps","image":"https://webimages.mongodb.com/_com_assets/cms/kuyj2focmkbxv7gh3-stacked_default_slate_blue.svg?auto=format%252Ccompress"}
</script>
<div class="css-qum8nr eccljxs0">
<div class="css-vq8pj5 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-18jxsvu e1ckbxcu2">
1
</div>
</div>
<div class="css-clrhqf">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Create a test collection
<a class="headerlink leafygreen-ui-1kepx47" href="#create-a-test-collection" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="create-a-test-collection">
</div>
</a>
</h3>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.test_numbers.insertMany([\n { value: 1 },\n { value: 2 },\n { value: 3 },\n { value: 4 },\n { value: 5 },\n { value: 6 }\n])","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">test_numbers</span>.<span class="lg-highlight-title lg-highlight-function">insertMany</span>(<!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">value</span>: <span class="lg-highlight-number">1</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">value</span>: <span class="lg-highlight-number">2</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">value</span>: <span class="lg-highlight-number">3</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">value</span>: <span class="lg-highlight-number">4</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">value</span>: <span class="lg-highlight-number">5</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">value</span>: <span class="lg-highlight-number">6</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">])</td></tr></tbody></table></code></pre>
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</div>
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<div class="css-18fui5z e1ckbxcu0">
<div class="css-18jxsvu e1ckbxcu2">
2
</div>
</div>
<div class="css-clrhqf">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Store JavaScript functions in the database
<a class="headerlink leafygreen-ui-1kepx47" href="#store-javascript-functions-in-the-database" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="store-javascript-functions-in-the-database">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
To store JavaScript functions in the database, insert a document
with these fields:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
_id
</code>
field holds the name of the function and is unique
per database.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
value
</code>
field holds the function definition.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
The following example creates an
<code class="leafygreen-ui-1l06pbn">
echo
</code>
function in the
<code class="leafygreen-ui-1l06pbn">
system.js
</code>
collection:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.system.js.insertOne(\n {\n _id: \"echo\",\n value : function(x) { return x; }\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">system</span>.<span class="lg-highlight-property">js</span>.<span class="lg-highlight-title lg-highlight-function">insertOne</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-string">"echo"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->value <!-- -->: <span class="lg-highlight-keyword lg-highlight-function">function</span>(<span class="lg-highlight-params">x</span>)<!-- --> <!-- -->{ <span class="lg-highlight-keyword">return</span> <!-- -->x<!-- -->; <!-- -->}</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</div>
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</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The following example creates an
<code class="leafygreen-ui-1l06pbn">
isEven
</code>
function
in the
<code class="leafygreen-ui-1l06pbn">
system.js
</code>
collection:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.system.js.insertOne(\n {\n _id: \"isEven\",\n value: function (num) {\n return num % 2 === 0;\n }\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">system</span>.<span class="lg-highlight-property">js</span>.<span class="lg-highlight-title lg-highlight-function">insertOne</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-string">"isEven"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">value</span>: <span class="lg-highlight-keyword lg-highlight-function">function</span> <!-- -->(<span class="lg-highlight-params">num</span>)<!-- --> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">return</span> <!-- -->num <!-- -->% <span class="lg-highlight-number">2</span> <!-- -->=== <span class="lg-highlight-number">0</span>;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->}</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
These functions, saved as
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/bson-types/#std-label-bson-types">
BSON type
</a>
, are available
for use from any JavaScript context, such as
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/mapReduce/#mongodb-dbcommand-dbcmd.mapReduce">
<code class="leafygreen-ui-1l06pbn">
mapReduce
</code>
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/where/#mongodb-query-op.-where">
<code class="leafygreen-ui-1l06pbn">
$where
</code>
.
</a>
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Functions saved as the deprecated BSON type
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/bson-types/#std-label-bson-types">
JavaScript (with
scope)
</a>
, cannot be used by
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/mapReduce/#mongodb-dbcommand-dbcmd.mapReduce">
<code class="leafygreen-ui-1l06pbn">
mapReduce
</code>
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/where/#mongodb-query-op.-where">
<code class="leafygreen-ui-1l06pbn">
$where
</code>
.
</a>
</p>
</div>
</div>
</section>
</div>
</div>
<div class="css-vq8pj5 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-18jxsvu e1ckbxcu2">
3
</div>
</div>
<div class="css-clrhqf">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Load the stored JavaScript functions into the shell
<a class="headerlink leafygreen-ui-1kepx47" href="#load-the-stored-javascript-functions-into-the-shell" title="Permalink to this heading">
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<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">loadServerScripts</span>(<!-- -->)</td></tr></tbody></table></code></pre>
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4
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<div class="css-clrhqf">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Run the stored JavaScript functions
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</h3>
<ol class="leafygreen-ui-rioki0" type="a">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The following code example runs the
<code class="leafygreen-ui-1l06pbn">
echo
</code>
function
stored in
<code class="leafygreen-ui-1l06pbn">
system.js
</code>
:
</p>
<div class="css-1j0r1ai">
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"echo(\"test\")","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">echo</span>(<span class="lg-highlight-string">"test"</span>)</td></tr></tbody></table></code></pre>
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</div>
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<path clip-rule="evenodd" d="M1.636 5.364a1 1 0 0 0 0 1.414l4.95 4.95.707.707a1 1 0 0 0 1.414 0l.707-.707 4.95-4.95a1 1 0 0 0 0-1.414l-.707-.707a1 1 0 0 0-1.414 0L8 8.899 3.757 4.657a1 1 0 0 0-1.414 0l-.707.707Z" fill="currentColor" fill-rule="evenodd">
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VIEW OUTPUT
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{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"test","programmingLanguage":"JavaScript"}
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<pre class="leafygreen-ui-1qhgg7e" tabindex="-1"><code class="lg-highlight-hljs-dark javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">test</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The following code example runs the
<code class="leafygreen-ui-1l06pbn">
isEven
</code>
function stored in
<code class="leafygreen-ui-1l06pbn">
system.js
</code>
in the
<code class="leafygreen-ui-1l06pbn">
$where
</code>
operator on the
<code class="leafygreen-ui-1l06pbn">
test_numbers
</code>
collection:
</p>
<div class="css-1j0r1ai">
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.test_numbers.find({\n $where: function () {\n return isEven(this.value);\n }\n})","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">test_numbers</span>.<span class="lg-highlight-title lg-highlight-function">find</span>(<!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">$where</span>: <span class="lg-highlight-keyword lg-highlight-function">function</span> <!-- -->(<!-- -->)<!-- --> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">return</span> <span class="lg-highlight-title lg-highlight-function">isEven</span>(<span class="lg-highlight-variable lg-highlight-language">this</span>.<span class="lg-highlight-property">value</span>)<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->}</td></tr><tr class=""><td class="leafygreen-ui-7razhx">})</td></tr></tbody></table></code></pre>
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<path clip-rule="evenodd" d="M1.636 5.364a1 1 0 0 0 0 1.414l4.95 4.95.707.707a1 1 0 0 0 1.414 0l.707-.707 4.95-4.95a1 1 0 0 0 0-1.414l-.707-.707a1 1 0 0 0-1.414 0L8 8.899 3.757 4.657a1 1 0 0 0-1.414 0l-.707.707Z" fill="currentColor" fill-rule="evenodd">
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<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ \"_id\" : ObjectId(\"668d7be41b55bec1bf191499\"), \"value\" : 2 }\n{ \"_id\" : ObjectId(\"668d7be41b55bec1bf19149b\"), \"value\" : 4 }\n{ \"_id\" : ObjectId(\"668d7be41b55bec1bf19149d\"), \"value\" : 6 }","programmingLanguage":"JavaScript"}
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<pre class="leafygreen-ui-12cejcz" tabindex="-1"><code class="lg-highlight-hljs-dark javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"668d7be41b55bec1bf191499"</span>)<!-- -->, <span class="lg-highlight-string">"value"</span> <!-- -->: <span class="lg-highlight-number">2</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"668d7be41b55bec1bf19149b"</span>)<!-- -->, <span class="lg-highlight-string">"value"</span> <!-- -->: <span class="lg-highlight-number">4</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"668d7be41b55bec1bf19149d"</span>)<!-- -->, <span class="lg-highlight-string">"value"</span> <!-- -->: <span class="lg-highlight-number">6</span> }</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</div>
</div>
</li>
</ol>
</section>
</div>
</div>
</div>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/command/filemd5/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
filemd5
<a class="headerlink leafygreen-ui-1kepx47" href="#filemd5" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="filemd5">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#definition" target="_self">
<span>
Definition
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#compatibility" target="_self">
<span>
Compatibility
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#syntax" target="_self">
<span>
Syntax
</span>
</a>
</li>
</ul>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Definition
<a class="headerlink leafygreen-ui-1kepx47" href="#definition" title="Permalink to this heading">
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<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="definition">
</div>
</a>
</h2>
<dl class="dbcommand">
<dt>
<code class="leafygreen-ui-1l06pbn">
filemd5
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-dbcommand-dbcmd.filemd5" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-dbcommand-dbcmd.filemd5">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.filemd5" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
filemd5
</code>
</span>
</a>
command returns the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-md5">
md5
</a>
hash for a single
file stored using the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-GridFS">
GridFS
</a>
specification. Client libraries
use this command to verify that files are correctly written to MongoDB.
The command takes the
<code class="leafygreen-ui-1l06pbn">
files_id
</code>
of the file in question and the
name of the GridFS root collection as arguments.
</p>
</dd>
</dl>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Compatibility
<a class="headerlink leafygreen-ui-1kepx47" href="#compatibility" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="compatibility">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
This command is available in deployments hosted in the following environments:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas?tck=docs_server" target="_self">
<span>
MongoDB Atlas
</span>
</a>
: The fully
managed service for MongoDB deployments in the cloud
</p>
</li>
</ul>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
This command is supported in all MongoDB Atlas clusters.
For information on Atlas support for all commands, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/unsupported-commands/" target="_self">
<span>
Unsupported Commands
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/install-enterprise/#std-label-install-mdb-enterprise">
MongoDB Enterprise
</a>
: The
subscription-based, self-managed version of MongoDB
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/install-community/#std-label-install-mdb-community-edition">
MongoDB Community
</a>
: The
source-available, free-to-use, and self-managed version of MongoDB
</p>
</li>
</ul>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Syntax
<a class="headerlink leafygreen-ui-1kepx47" href="#syntax" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="syntax">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The command has the following syntax:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.runCommand(\n {\n filemd5: ObjectId(\"4f1f10e37671b50e4ecd2776\"),\n root: \"fs\"\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">runCommand</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">filemd5</span>: <span class="lg-highlight-title lg-highlight-class">ObjectId</span>(<span class="lg-highlight-string">"4f1f10e37671b50e4ecd2776"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">root</span>: <span class="lg-highlight-string">"fs"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
MongoDB computes the
<code class="leafygreen-ui-1l06pbn">
filemd5
</code>
using all data in the GridFS file object
pulled sequentially from each chunk in the
<code class="leafygreen-ui-1l06pbn">
chunks
</code>
collection.
</p>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/method/db.collection.mapReduce/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
db.collection.mapReduce()
<a class="headerlink leafygreen-ui-1kepx47" href="#db.collection.mapreduce--" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="db.collection.mapreduce--">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#compatibility" target="_self">
<span>
Compatibility
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#syntax" target="_self">
<span>
Syntax
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#output" target="_self">
<span>
Output
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#restrictions" target="_self">
<span>
Restrictions
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#additional-information" target="_self">
<span>
Additional Information
</span>
</a>
</li>
</ul>
</div>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
Aggregation Pipeline as Alternative to Map-Reduce
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 5.0,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/map-reduce/#std-label-map-reduce">
map-reduce
</a>
is
deprecated:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Instead of
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/map-reduce/#std-label-map-reduce">
map-reduce
</a>
, you should use an
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/aggregation-pipeline/#std-label-aggregation-pipeline">
aggregation pipeline
</a>
. Aggregation
pipelines provide better performance and usability than map-reduce.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
You can rewrite map-reduce operations using
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation-pipeline/#std-label-aggregation-pipeline-operator-reference">
aggregation pipeline
stages
</a>
, such as
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/group/#mongodb-pipeline-pipe.-group">
<code class="leafygreen-ui-1l06pbn">
$group
</code>
</a>
,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/merge/#mongodb-pipeline-pipe.-merge">
<code class="leafygreen-ui-1l06pbn">
$merge
</code>
</a>
, and others.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For map-reduce operations that require custom functionality, you can
use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/accumulator/#mongodb-group-grp.-accumulator">
<code class="leafygreen-ui-1l06pbn">
$accumulator
</code>
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/function/#mongodb-expression-exp.-function">
<code class="leafygreen-ui-1l06pbn">
$function
</code>
</a>
aggregation
operators. You can use those
operators to define custom aggregation expressions in JavaScript.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
For examples of aggregation pipeline alternatives to map-reduce, see:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/map-reduce-to-aggregation-pipeline/">
Map-Reduce to Aggregation Pipeline
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/map-reduce-examples/">
Map-Reduce Examples
</a>
</p>
</li>
</ul>
</div>
</div>
<dl class="method">
<dt>
<code class="leafygreen-ui-1l06pbn">
db.collection.mapReduce(map,reduce, { <options> })
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-method-db.collection.mapReduce" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-method-db.collection.mapReduce">
</div>
</a>
</dt>
<dd>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
mongosh Method
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
This page documents a
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
method. This is
<em>
not
</em>
the documentation for database commands or language-specific drivers,
such as Node.js.
</p>
<p class="leafygreen-ui-1kp3ins">
For the database command, see the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/mapReduce/#mongodb-dbcommand-dbcmd.mapReduce">
<code class="leafygreen-ui-1l06pbn">
mapReduce
</code>
</a>
command
<!-- -->
.
</p>
<p class="leafygreen-ui-1kp3ins">
For MongoDB API drivers, refer to the language-specific
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/drivers/" target="_self">
<span>
MongoDB driver documentation
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/views/#std-label-views-landing-page">
Views
</a>
do not support map-reduce operations.
</p>
</div>
</div>
</dd>
</dl>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Compatibility
<a class="headerlink leafygreen-ui-1kepx47" href="#compatibility" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="compatibility">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
This method is available in deployments hosted in the following environments:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas?tck=docs_server" target="_self">
<span>
MongoDB Atlas
</span>
</a>
: The fully
managed service for MongoDB deployments in the cloud
</p>
</li>
</ul>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
This command is not supported in M0, M2, and M5 clusters.
For more information, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/unsupported-commands/" target="_self">
<span>
Unsupported Commands
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/install-enterprise/#std-label-install-mdb-enterprise">
MongoDB Enterprise
</a>
: The
subscription-based, self-managed version of MongoDB
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/install-community/#std-label-install-mdb-community-edition">
MongoDB Community
</a>
: The
source-available, free-to-use, and self-managed version of MongoDB
</p>
</li>
</ul>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Syntax
<a class="headerlink leafygreen-ui-1kepx47" href="#syntax" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="syntax">
</div>
</a>
</h2>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
MongoDB ignores the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/mapReduce/#std-label-cmd-mapreduce-verbose">
verbose
</a>
option.
</p>
<p class="leafygreen-ui-1kp3ins">
Starting in version 4.2, MongoDB deprecates:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The map-reduce option to
<em>
create
</em>
a new sharded collection as well
as the use of the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/mapReduce/#std-label-mapreduce-out-cmd">
sharded
</a>
option for
map-reduce. To output to a sharded collection, create the sharded
collection first. MongoDB 4.2 also deprecates the replacement of
an existing sharded collection.
</p>
</li>
</ul>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-db.collection.mapReduce" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
db.collection.mapReduce()
</code>
</span>
</a>
has the following syntax:
</p>
<script class="structured_data" type="application/ld+json">
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</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">collection</span>.<span class="lg-highlight-title lg-highlight-function">mapReduce</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <<!-- -->map<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- --><<!-- -->reduce<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">out</span>: <<!-- -->collection<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">query</span>: <<span class="lg-highlight-variable lg-highlight-language">document</span>><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">sort</span>: <<span class="lg-highlight-variable lg-highlight-language">document</span>><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">limit</span>: <<!-- -->number<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">finalize</span>: <<span class="lg-highlight-keyword lg-highlight-function">function</span>><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">scope</span>: <<span class="lg-highlight-variable lg-highlight-language">document</span>><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">jsMode</span>: <<!-- -->boolean<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">verbose</span>: <<!-- -->boolean<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">bypassDocumentValidation</span>: <<!-- -->boolean<!-- -->></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->}</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-db.collection.mapReduce" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
db.collection.mapReduce()
</code>
</span>
</a>
takes the following parameters:
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:20%"/>
<col style="width:20%"/>
<col style="width:80%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Parameter
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Type
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
map
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
JavaScript or String
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
A JavaScript function that associates or "maps" a
<code class="leafygreen-ui-1l06pbn">
value
</code>
with
a
<code class="leafygreen-ui-1l06pbn">
key
</code>
and emits the
<code class="leafygreen-ui-1l06pbn">
key
</code>
and value
<code class="leafygreen-ui-1l06pbn">
pair
</code>
. You can
specify the function as
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/bson-types/#std-label-bson-types">
BSON type
</a>
JavaScript
(BSON Type 13) or String (BSON Type 2).
</p>
<p class="leafygreen-ui-1kp3ins">
See
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-mapreduce-map-mtd" target="_self">
<span>
Requirements for the map Function
</span>
</a>
for more information.
</p>
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
JavaScript or String
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
A JavaScript function that "reduces" to a single object all the
<code class="leafygreen-ui-1l06pbn">
values
</code>
associated with a particular
<code class="leafygreen-ui-1l06pbn">
key
</code>
. You can specify
the function as BSON type JavaScript (BSON Type 13) or String
(BSON Type 2).
</p>
<p class="leafygreen-ui-1kp3ins">
See
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-mapreduce-reduce-mtd" target="_self">
<span>
Requirements for the reduce Function
</span>
</a>
for more information.
</p>
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
options
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
document
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
A document that specifies additional parameters to
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-db.collection.mapReduce" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
db.collection.mapReduce()
</code>
.
</span>
</a>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<p class="leafygreen-ui-1kp3ins">
The following table describes additional arguments that
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-db.collection.mapReduce" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
db.collection.mapReduce()
</code>
</span>
</a>
can accept.
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:20%"/>
<col style="width:20%"/>
<col style="width:80%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Field
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Type
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
out
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
string or document
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Specifies the location of the result of the map-reduce operation.
You can output to a collection, output to a collection with an
action, or output inline. You may output to a collection when
performing map-reduce operations on the primary members of the set;
on
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-secondary">
secondary
</a>
members you may only use the
<code class="leafygreen-ui-1l06pbn">
inline
</code>
output.
</p>
<p class="leafygreen-ui-1kp3ins">
See
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-mapreduce-out-mtd" target="_self">
<span>
out Options
</span>
</a>
for more information.
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
query
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
document
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Specifies the selection criteria using
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
for determining the documents input to the
<code class="leafygreen-ui-1l06pbn">
map
</code>
function.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
sort
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
document
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Sorts the
<em>
input
</em>
documents. This option is useful for
optimization. For example, specify the sort key to be the same as
the emit key so that there are fewer reduce operations. The sort key
must be in an existing index for this collection.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
limit
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
number
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Specifies a maximum number of documents for the input into the
<code class="leafygreen-ui-1l06pbn">
map
</code>
function.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
finalize
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Javascript or String
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Optional. A JavaScript function that modifies the output after
the
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
function. You can specify the function as BSON type
JavaScript (BSON Type 13) or String (BSON Type 2).
</p>
<p class="leafygreen-ui-1kp3ins">
See
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-mapreduce-finalize-mtd" target="_self">
<span>
Requirements for the finalize Function
</span>
</a>
for more information.
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
scope
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
document
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Specifies global variables that are accessible in the
<code class="leafygreen-ui-1l06pbn">
map
</code>
,
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
and
<code class="leafygreen-ui-1l06pbn">
finalize
</code>
functions.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
jsMode
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
boolean
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Specifies whether to convert intermediate data into BSON
format between the execution of the
<code class="leafygreen-ui-1l06pbn">
map
</code>
and
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
functions.
</p>
<p class="leafygreen-ui-1kp3ins">
Defaults to
<code class="leafygreen-ui-1l06pbn">
false
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
If
<code class="leafygreen-ui-1l06pbn">
false
</code>
:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Internally, MongoDB converts the JavaScript objects emitted
by the
<code class="leafygreen-ui-1l06pbn">
map
</code>
function to BSON objects. These BSON
objects are then converted back to JavaScript objects when
calling the
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
function.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The map-reduce operation places the intermediate BSON objects
in temporary, on-disk storage. This allows the map-reduce
operation to execute over arbitrarily large data sets.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
If
<code class="leafygreen-ui-1l06pbn">
true
</code>
:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Internally, the JavaScript objects emitted during
<code class="leafygreen-ui-1l06pbn">
map
</code>
function remain as JavaScript objects. There is no need to
convert the objects for the
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
function, which
can result in faster execution.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
You can only use
<code class="leafygreen-ui-1l06pbn">
jsMode
</code>
for result sets with fewer than
500,000 distinct
<code class="leafygreen-ui-1l06pbn">
key
</code>
arguments to the mapper's
<code class="leafygreen-ui-1l06pbn">
emit()
</code>
function.
</p>
</li>
</ul>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
verbose
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
boolean
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Specifies whether to include the
<code class="leafygreen-ui-1l06pbn">
timing
</code>
information in the
result information. Set
<code class="leafygreen-ui-1l06pbn">
verbose
</code>
to
<code class="leafygreen-ui-1l06pbn">
true
</code>
to include
the
<code class="leafygreen-ui-1l06pbn">
timing
</code>
information.
</p>
<p class="leafygreen-ui-1kp3ins">
Defaults to
<code class="leafygreen-ui-1l06pbn">
false
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
This option is ignored. The result
information always excludes the
<code class="leafygreen-ui-1l06pbn">
timing
</code>
information.
You can view timing information by running
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.explain/#mongodb-method-db.collection.explain">
<code class="leafygreen-ui-1l06pbn">
db.collection.explain()
</code>
</a>
with
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-db.collection.mapReduce" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
db.collection.mapReduce()
</code>
</span>
</a>
in the
<code class="leafygreen-ui-1l06pbn">
"executionStats"
</code>
or
<code class="leafygreen-ui-1l06pbn">
"allPlansExecution"
</code>
<code class="leafygreen-ui-1l06pbn">
verbosity
</code>
modes.
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
collation
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
document
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Optional.
</p>
<p class="leafygreen-ui-1kp3ins">
Specifies the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/collation/#std-label-collation">
collation
</a>
to use for the operation.
</p>
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/collation/#std-label-collation">
Collation
</a>
allows users to specify
language-specific rules for string comparison, such as rules for
lettercase and accent marks.
</p>
<p class="leafygreen-ui-1kp3ins">
The collation option has the following syntax:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"collation: {\n locale: <string>,\n caseLevel: <boolean>,\n caseFirst: <string>,\n strength: <int>,\n numericOrdering: <boolean>,\n alternate: <string>,\n maxVariable: <string>,\n backwards: <boolean>\n}"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light none leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">collation: {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> locale: <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> caseLevel: <boolean>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> caseFirst: <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> strength: <int>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> numericOrdering: <boolean>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> alternate: <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> maxVariable: <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> backwards: <boolean></td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
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</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
When specifying collation, the
<code class="leafygreen-ui-1l06pbn">
locale
</code>
field is mandatory; all
other collation fields are optional. For descriptions of the fields,
see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/collation/#std-label-collation-document-fields">
Collation Document
<!-- -->
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
If the collation is unspecified but the collection has a
default collation (see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.createCollection/#mongodb-method-db.createCollection">
<code class="leafygreen-ui-1l06pbn">
db.createCollection()
</code>
</a>
), the
operation uses the collation specified for the collection.
</p>
<p class="leafygreen-ui-1kp3ins">
If no collation is specified for the collection or for the
operations, MongoDB uses the simple binary comparison used in prior
versions for string comparisons.
</p>
<p class="leafygreen-ui-1kp3ins">
You cannot specify multiple collations for an operation. For
example, you cannot specify different collations per field, or if
performing a find with a sort, you cannot use one collation for the
find and another for the sort.
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
bypassDocumentValidation
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
boolean
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Optional. Enables
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/mapReduce/#mongodb-dbcommand-dbcmd.mapReduce">
<code class="leafygreen-ui-1l06pbn">
mapReduce
</code>
</a>
to bypass document validation
during the operation. This lets you insert documents that do not
meet the validation requirements.
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/mapReduce/#mongodb-dbcommand-dbcmd.mapReduce">
<code class="leafygreen-ui-1l06pbn">
map-reduce operations
</code>
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/where/#mongodb-query-op.-where">
<code class="leafygreen-ui-1l06pbn">
$where
</code>
</a>
operator expressions
<strong>
cannot
</strong>
access certain global functions or
properties, such as
<code class="leafygreen-ui-1l06pbn">
db
</code>
, that are available in
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
.
</span>
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
The following JavaScript functions and properties
<strong>
are available
</strong>
to
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/mapReduce/#mongodb-dbcommand-dbcmd.mapReduce">
<code class="leafygreen-ui-1l06pbn">
map-reduce operations
</code>
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/where/#mongodb-query-op.-where">
<code class="leafygreen-ui-1l06pbn">
$where
</code>
</a>
operator expressions:
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Available Properties
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Available Functions
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<div class="line-block">
<div class="line">
<code class="leafygreen-ui-1l06pbn">
args
</code>
</div>
<div class="line">
<code class="leafygreen-ui-1l06pbn">
MaxKey
</code>
</div>
<div class="line">
<code class="leafygreen-ui-1l06pbn">
MinKey
</code>
</div>
</div>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<div class="line-block">
<div class="line">
<code class="leafygreen-ui-1l06pbn">
assert()
</code>
</div>
<div class="line">
<code class="leafygreen-ui-1l06pbn">
BinData()
</code>
</div>
<div class="line">
<code class="leafygreen-ui-1l06pbn">
DBPointer()
</code>
</div>
<div class="line">
<code class="leafygreen-ui-1l06pbn">
DBRef()
</code>
</div>
<div class="line">
<code class="leafygreen-ui-1l06pbn">
doassert()
</code>
</div>
<div class="line">
<code class="leafygreen-ui-1l06pbn">
emit()
</code>
</div>
<div class="line">
<code class="leafygreen-ui-1l06pbn">
gc()
</code>
</div>
<div class="line">
<code class="leafygreen-ui-1l06pbn">
HexData()
</code>
</div>
<div class="line">
<code class="leafygreen-ui-1l06pbn">
hex_md5()
</code>
</div>
<div class="line">
<code class="leafygreen-ui-1l06pbn">
isNumber()
</code>
</div>
<div class="line">
<code class="leafygreen-ui-1l06pbn">
isObject()
</code>
</div>
<div class="line">
<code class="leafygreen-ui-1l06pbn">
ISODate()
</code>
</div>
<div class="line">
<code class="leafygreen-ui-1l06pbn">
isString()
</code>
</div>
</div>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<div class="line-block">
<div class="line">
<code class="leafygreen-ui-1l06pbn">
Map()
</code>
</div>
<div class="line">
<code class="leafygreen-ui-1l06pbn">
MD5()
</code>
</div>
<div class="line">
<code class="leafygreen-ui-1l06pbn">
NumberInt()
</code>
</div>
<div class="line">
<code class="leafygreen-ui-1l06pbn">
NumberLong()
</code>
</div>
<div class="line">
<code class="leafygreen-ui-1l06pbn">
ObjectId()
</code>
</div>
<div class="line">
<code class="leafygreen-ui-1l06pbn">
print()
</code>
</div>
<div class="line">
<code class="leafygreen-ui-1l06pbn">
printjson()
</code>
</div>
<div class="line">
<code class="leafygreen-ui-1l06pbn">
printjsononeline()
</code>
</div>
<div class="line">
<code class="leafygreen-ui-1l06pbn">
sleep()
</code>
</div>
<div class="line">
<code class="leafygreen-ui-1l06pbn">
Timestamp()
</code>
</div>
<div class="line">
<code class="leafygreen-ui-1l06pbn">
tojson()
</code>
</div>
<div class="line">
<code class="leafygreen-ui-1l06pbn">
tojsononeline()
</code>
</div>
<div class="line">
<code class="leafygreen-ui-1l06pbn">
tojsonObject()
</code>
</div>
<div class="line">
<code class="leafygreen-ui-1l06pbn">
UUID()
</code>
</div>
<div class="line">
<code class="leafygreen-ui-1l06pbn">
version()
</code>
</div>
</div>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-mapreduce-map-mtd">
</span>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Requirements for the
<code class="leafygreen-ui-1l06pbn">
map
</code>
Function
<a class="headerlink leafygreen-ui-1kepx47" href="#requirements-for-the-map-function" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="requirements-for-the-map-function">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
map
</code>
function is responsible for transforming each input document into
zero or more documents. It can access the variables defined in the
<code class="leafygreen-ui-1l06pbn">
scope
</code>
parameter, and has the following prototype:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"function() {\n ...\n emit(key, value);\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword lg-highlight-function">function</span>(<!-- -->)<!-- --> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-function">emit</span>(<!-- -->key<!-- -->, <!-- -->value)<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
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<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
map
</code>
function has the following requirements:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
In the
<code class="leafygreen-ui-1l06pbn">
map
</code>
function, reference the current document as
<code class="leafygreen-ui-1l06pbn">
this
</code>
within the function.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
map
</code>
function should
<em>
not
</em>
access the database for any reason.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
map
</code>
function should be pure, or have
<em>
no
</em>
impact outside of
the function (i.e. side effects.)
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
map
</code>
function may optionally call
<code class="leafygreen-ui-1l06pbn">
emit(key,value)
</code>
any number of
times to create an output document associating
<code class="leafygreen-ui-1l06pbn">
key
</code>
with
<code class="leafygreen-ui-1l06pbn">
value
</code>
.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
The following
<code class="leafygreen-ui-1l06pbn">
map
</code>
function will call
<code class="leafygreen-ui-1l06pbn">
emit(key,value)
</code>
either
0 or 1 times depending on the value of the input document's
<code class="leafygreen-ui-1l06pbn">
status
</code>
field:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"function() {\n if (this.status == 'A')\n emit(this.cust_id, 1);\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword lg-highlight-function">function</span>(<!-- -->)<!-- --> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">if</span> <!-- -->(<span class="lg-highlight-variable lg-highlight-language">this</span>.<span class="lg-highlight-property">status</span> <!-- -->== <span class="lg-highlight-string">'A'</span>)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-function">emit</span>(<span class="lg-highlight-variable lg-highlight-language">this</span>.<span class="lg-highlight-property">cust_id</span>, <span class="lg-highlight-number">1</span>)<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
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</div>
<p class="leafygreen-ui-1kp3ins">
The following
<code class="leafygreen-ui-1l06pbn">
map
</code>
function may call
<code class="leafygreen-ui-1l06pbn">
emit(key,value)
</code>
multiple times depending on the number of elements in the input
document's
<code class="leafygreen-ui-1l06pbn">
items
</code>
field:
</p>
<script class="structured_data" type="application/ld+json">
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</script>
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<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword lg-highlight-function">function</span>(<!-- -->)<!-- --> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-variable lg-highlight-language">this</span>.<span class="lg-highlight-property">items</span>.<span class="lg-highlight-title lg-highlight-function">forEach</span>(<span class="lg-highlight-keyword lg-highlight-function">function</span>(<span class="lg-highlight-params">item</span>)<!-- -->{ <span class="lg-highlight-title lg-highlight-function">emit</span>(<!-- -->item.<span class="lg-highlight-property">sku</span>, <span class="lg-highlight-number">1</span>)<!-- -->; <!-- -->})<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</section>
<span class="leafygreen-ui-1qnjd6d" id="std-label-mapreduce-reduce-mtd">
</span>
<section>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Requirements for the
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
Function
<a class="headerlink leafygreen-ui-1kepx47" href="#requirements-for-the-reduce-function" title="Permalink to this heading">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
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</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
function has the following prototype:
</p>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword lg-highlight-function">function</span>(<span class="lg-highlight-params">key, values</span>)<!-- --> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">return</span> <!-- -->result<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
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</div>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
function exhibits the following behaviors:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
function should
<em>
not
</em>
access the database,
even to perform read operations.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
function should
<em>
not
</em>
affect the outside
system.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
MongoDB can invoke the
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
function more than once for the
same key. In this case, the previous output from the
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
function for that key will become one of the input values to the next
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
function invocation for that key.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
function can access the variables defined
in the
<code class="leafygreen-ui-1l06pbn">
scope
</code>
parameter.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The inputs to
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
must not be larger than half of MongoDB's
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/limits/#std-label-limit-bson-document-size">
maximum BSON document size
</a>
. This
requirement may be violated when large documents are returned and then
joined together in subsequent
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
steps.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
Because it is possible to invoke the
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
function
more than once for the same key, the following
properties need to be true:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
the
<em>
type
</em>
of the return object must be
<strong>
identical
</strong>
to the type of the
<code class="leafygreen-ui-1l06pbn">
value
</code>
emitted by the
<code class="leafygreen-ui-1l06pbn">
map
</code>
function.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
the
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
function must be
<em>
associative
</em>
. The following statement must be
true:
</p>
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{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"reduce(key, [ C, reduce(key, [ A, B ]) ] ) == reduce( key, [ C, A, B ] )","programmingLanguage":"JavaScript"}
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<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">reduce</span>(<!-- -->key<!-- -->, <!-- -->[ <!-- -->C<!-- -->, <span class="lg-highlight-title lg-highlight-function">reduce</span>(<!-- -->key<!-- -->, <!-- -->[ <!-- -->A<!-- -->, <!-- -->B ]) ] ) <!-- -->== <span class="lg-highlight-title lg-highlight-function">reduce</span>( <!-- -->key<!-- -->, <!-- -->[ <!-- -->C<!-- -->, <!-- -->A<!-- -->, <!-- -->B ] )</td></tr></tbody></table></code></pre>
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<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
the
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
function must be
<em>
idempotent
</em>
. Ensure
that the following statement is true:
</p>
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<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">reduce</span>( <!-- -->key<!-- -->, <!-- -->[ <span class="lg-highlight-title lg-highlight-function">reduce</span>(<!-- -->key<!-- -->, <!-- -->valuesArray) ] ) <!-- -->== <span class="lg-highlight-title lg-highlight-function">reduce</span>( <!-- -->key<!-- -->, <!-- -->valuesArray )</td></tr></tbody></table></code></pre>
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<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
the
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
function should be
<em>
commutative
</em>
: that is, the order of the
elements in the
<code class="leafygreen-ui-1l06pbn">
valuesArray
</code>
should not affect the output of the
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
function, so that the following statement is true:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"reduce( key, [ A, B ] ) == reduce( key, [ B, A ] )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">reduce</span>( <!-- -->key<!-- -->, <!-- -->[ <!-- -->A<!-- -->, <!-- -->B ] ) <!-- -->== <span class="lg-highlight-title lg-highlight-function">reduce</span>( <!-- -->key<!-- -->, <!-- -->[ <!-- -->B<!-- -->, <!-- -->A ] )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
</ul>
</section>
<span class="leafygreen-ui-1qnjd6d" id="std-label-mapreduce-out-mtd">
</span>
<section>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
<code class="leafygreen-ui-1l06pbn">
out
</code>
Options
<a class="headerlink leafygreen-ui-1kepx47" href="#out-options" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="out-options">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
You can specify the following options for the
<code class="leafygreen-ui-1l06pbn">
out
</code>
parameter:
</p>
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Output to a Collection
<a class="headerlink leafygreen-ui-1kepx47" href="#output-to-a-collection" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="output-to-a-collection">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
This option outputs to a new collection, and is not available on secondary
members of replica sets.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"out: <collectionname>","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">out</span>: <<!-- -->collectionName<!-- -->></td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</div>
</button>
</div>
</div>
</div>
</div>
</section>
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Output to a Collection with an Action
<a class="headerlink leafygreen-ui-1kepx47" href="#output-to-a-collection-with-an-action" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="output-to-a-collection-with-an-action">
</div>
</a>
</h4>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Starting in version 4.2, MongoDB deprecates:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The map-reduce option to
<em>
create
</em>
a new sharded collection as well
as the use of the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/mapReduce/#std-label-mapreduce-out-cmd">
sharded
</a>
option for
map-reduce. To output to a sharded collection, create the sharded
collection first. MongoDB 4.2 also deprecates the replacement of
an existing sharded collection.
</p>
</li>
</ul>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
This option is only available when passing a collection that
already exists to
<code class="leafygreen-ui-1l06pbn">
out
</code>
. It is not available
on secondary members of replica sets.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"out: { <action>: <collectionname>\n [, db: <dbname>]\n [, sharded: <boolean> ] }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">out</span>: <!-- -->{ <<!-- -->action<!-- -->><!-- -->: <<!-- -->collectionName<!-- -->></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->[<!-- -->,<!-- --> <span class="lg-highlight-attr">db</span>: <<!-- -->dbName<!-- -->><!-- -->]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->[<!-- -->,<!-- --> <span class="lg-highlight-attr">sharded</span>: <<!-- -->boolean<!-- -->> <!-- -->] }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
When you output to a collection with an action, the
<code class="leafygreen-ui-1l06pbn">
out
</code>
has the
following parameters:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
<action>
</code>
: Specify one of the following actions:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
replace
</code>
</p>
<p class="leafygreen-ui-1kp3ins">
Replace the contents of the
<code class="leafygreen-ui-1l06pbn">
<collectionName>
</code>
if the
collection with the
<code class="leafygreen-ui-1l06pbn">
<collectionName>
</code>
exists.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
merge
</code>
</p>
<p class="leafygreen-ui-1kp3ins">
Merge the new result with the existing result if the
output collection already exists. If an existing document
has the same key as the new result,
<em>
overwrite
</em>
that
existing document.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
</p>
<p class="leafygreen-ui-1kp3ins">
Merge the new result with the existing result if the
output collection already exists. If an existing document
has the same key as the new result, apply the
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
function to both the new and the existing documents and
overwrite the existing document with the result.
</p>
</li>
</ul>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
db
</code>
:
</p>
<p class="leafygreen-ui-1kp3ins">
Optional. The name of the database that you want the map-reduce
operation to write its output. By default this will be the same
database as the input collection.
</p>
</li>
</ul>
</section>
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Output Inline
<a class="headerlink leafygreen-ui-1kepx47" href="#output-inline" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="output-inline">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
Perform the map-reduce operation in memory and return the result. This
option is the only available option for
<code class="leafygreen-ui-1l06pbn">
out
</code>
on secondary members of
replica sets.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"out: { inline: 1 }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">out</span>: <!-- -->{ <span class="lg-highlight-attr">inline</span>: <span class="lg-highlight-number">1</span> }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The result must fit within the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/limits/#std-label-limit-bson-document-size">
maximum size of a BSON document
<!-- -->
.
</a>
</p>
</section>
</section>
<span class="leafygreen-ui-1qnjd6d" id="std-label-mapreduce-finalize-mtd">
</span>
<section>
<section>
</section>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Requirements for the
<code class="leafygreen-ui-1l06pbn">
finalize
</code>
Function
<a class="headerlink leafygreen-ui-1kepx47" href="#requirements-for-the-finalize-function" title="Permalink to this heading">
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</h3>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
finalize
</code>
function has the following prototype:
</p>
<script class="structured_data" type="application/ld+json">
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</script>
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<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword lg-highlight-function">function</span>(<span class="lg-highlight-params">key, reducedValue</span>)<!-- --> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">return</span> <!-- -->modifiedObject<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
finalize
</code>
function receives as its arguments a
<code class="leafygreen-ui-1l06pbn">
key
</code>
value and the
<code class="leafygreen-ui-1l06pbn">
reducedValue
</code>
from the
<code class="leafygreen-ui-1l06pbn">
reduce
</code>
function. Be
aware that:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
finalize
</code>
function should
<em>
not
</em>
access the database for
any reason.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
finalize
</code>
function should be pure, or have
<em>
no
</em>
impact
outside of the function (i.e. side effects.)
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
finalize
</code>
function can access the variables defined in
the
<code class="leafygreen-ui-1l06pbn">
scope
</code>
parameter.
</p>
</li>
</ul>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Map-Reduce Examples
<a class="headerlink leafygreen-ui-1kepx47" href="#map-reduce-examples" title="Permalink to this heading">
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<div class="css-1btu0w3 evvkmar0" id="map-reduce-examples">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The examples in this section include aggregation pipeline alternatives
without custom aggregation expressions. For alternatives that use custom
expressions, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/map-reduce-to-aggregation-pipeline/#std-label-mr-to-agg-examples">
Map-Reduce to Aggregation Pipeline Translation
Examples
<!-- -->
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
Create a sample collection
<code class="leafygreen-ui-1l06pbn">
orders
</code>
with these documents:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.orders.insertMany([\n { _id: 1, cust_id: \"Ant O. Knee\", ord_date: new Date(\"2020-03-01\"), price: 25, items: [ { sku: \"oranges\", qty: 5, price: 2.5 }, { sku: \"apples\", qty: 5, price: 2.5 } ], status: \"A\" },\n { _id: 2, cust_id: \"Ant O. Knee\", ord_date: new Date(\"2020-03-08\"), price: 70, items: [ { sku: \"oranges\", qty: 8, price: 2.5 }, { sku: \"chocolates\", qty: 5, price: 10 } ], status: \"A\" },\n { _id: 3, cust_id: \"Busby Bee\", ord_date: new Date(\"2020-03-08\"), price: 50, items: [ { sku: \"oranges\", qty: 10, price: 2.5 }, { sku: \"pears\", qty: 10, price: 2.5 } ], status: \"A\" },\n { _id: 4, cust_id: \"Busby Bee\", ord_date: new Date(\"2020-03-18\"), price: 25, items: [ { sku: \"oranges\", qty: 10, price: 2.5 } ], status: \"A\" },\n { _id: 5, cust_id: \"Busby Bee\", ord_date: new Date(\"2020-03-19\"), price: 50, items: [ { sku: \"chocolates\", qty: 5, price: 10 } ], status: \"A\"},\n { _id: 6, cust_id: \"Cam Elot\", ord_date: new Date(\"2020-03-19\"), price: 35, items: [ { sku: \"carrots\", qty: 10, price: 1.0 }, { sku: \"apples\", qty: 10, price: 2.5 } ], status: \"A\" },\n { _id: 7, cust_id: \"Cam Elot\", ord_date: new Date(\"2020-03-20\"), price: 25, items: [ { sku: \"oranges\", qty: 10, price: 2.5 } ], status: \"A\" },\n { _id: 8, cust_id: \"Don Quis\", ord_date: new Date(\"2020-03-20\"), price: 75, items: [ { sku: \"chocolates\", qty: 5, price: 10 }, { sku: \"apples\", qty: 10, price: 2.5 } ], status: \"A\" },\n { _id: 9, cust_id: \"Don Quis\", ord_date: new Date(\"2020-03-20\"), price: 55, items: [ { sku: \"carrots\", qty: 5, price: 1.0 }, { sku: \"apples\", qty: 10, price: 2.5 }, { sku: \"oranges\", qty: 10, price: 2.5 } ], status: \"A\" },\n { _id: 10, cust_id: \"Don Quis\", ord_date: new Date(\"2020-03-23\"), price: 25, items: [ { sku: \"oranges\", qty: 10, price: 2.5 } ], status: \"A\" }\n])","programmingLanguage":"JavaScript"}
</script>
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<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">orders</span>.<span class="lg-highlight-title lg-highlight-function">insertMany</span>(<!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-attr">cust_id</span>: <span class="lg-highlight-string">"Ant O. Knee"</span>, <span class="lg-highlight-attr">ord_date</span>: <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Date</span>(<span class="lg-highlight-string">"2020-03-01"</span>)<!-- -->, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">25</span>, <span class="lg-highlight-attr">items</span>: <!-- -->[ <!-- -->{ <span class="lg-highlight-attr">sku</span>: <span class="lg-highlight-string">"oranges"</span>, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">2.5</span> }<!-- -->, <!-- -->{ <span class="lg-highlight-attr">sku</span>: <span class="lg-highlight-string">"apples"</span>, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">2.5</span> } ]<!-- -->, <span class="lg-highlight-attr">status</span>: <span class="lg-highlight-string">"A"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-attr">cust_id</span>: <span class="lg-highlight-string">"Ant O. Knee"</span>, <span class="lg-highlight-attr">ord_date</span>: <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Date</span>(<span class="lg-highlight-string">"2020-03-08"</span>)<!-- -->, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">70</span>, <span class="lg-highlight-attr">items</span>: <!-- -->[ <!-- -->{ <span class="lg-highlight-attr">sku</span>: <span class="lg-highlight-string">"oranges"</span>, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">8</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">2.5</span> }<!-- -->, <!-- -->{ <span class="lg-highlight-attr">sku</span>: <span class="lg-highlight-string">"chocolates"</span>, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">10</span> } ]<!-- -->, <span class="lg-highlight-attr">status</span>: <span class="lg-highlight-string">"A"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">3</span>, <span class="lg-highlight-attr">cust_id</span>: <span class="lg-highlight-string">"Busby Bee"</span>, <span class="lg-highlight-attr">ord_date</span>: <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Date</span>(<span class="lg-highlight-string">"2020-03-08"</span>)<!-- -->, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">50</span>, <span class="lg-highlight-attr">items</span>: <!-- -->[ <!-- -->{ <span class="lg-highlight-attr">sku</span>: <span class="lg-highlight-string">"oranges"</span>, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">2.5</span> }<!-- -->, <!-- -->{ <span class="lg-highlight-attr">sku</span>: <span class="lg-highlight-string">"pears"</span>, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">2.5</span> } ]<!-- -->, <span class="lg-highlight-attr">status</span>: <span class="lg-highlight-string">"A"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">4</span>, <span class="lg-highlight-attr">cust_id</span>: <span class="lg-highlight-string">"Busby Bee"</span>, <span class="lg-highlight-attr">ord_date</span>: <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Date</span>(<span class="lg-highlight-string">"2020-03-18"</span>)<!-- -->, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">25</span>, <span class="lg-highlight-attr">items</span>: <!-- -->[ <!-- -->{ <span class="lg-highlight-attr">sku</span>: <span class="lg-highlight-string">"oranges"</span>, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">2.5</span> } ]<!-- -->, <span class="lg-highlight-attr">status</span>: <span class="lg-highlight-string">"A"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-attr">cust_id</span>: <span class="lg-highlight-string">"Busby Bee"</span>, <span class="lg-highlight-attr">ord_date</span>: <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Date</span>(<span class="lg-highlight-string">"2020-03-19"</span>)<!-- -->, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">50</span>, <span class="lg-highlight-attr">items</span>: <!-- -->[ <!-- -->{ <span class="lg-highlight-attr">sku</span>: <span class="lg-highlight-string">"chocolates"</span>, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">10</span> } ]<!-- -->, <span class="lg-highlight-attr">status</span>: <span class="lg-highlight-string">"A"</span>}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">6</span>, <span class="lg-highlight-attr">cust_id</span>: <span class="lg-highlight-string">"Cam Elot"</span>, <span class="lg-highlight-attr">ord_date</span>: <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Date</span>(<span class="lg-highlight-string">"2020-03-19"</span>)<!-- -->, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">35</span>, <span class="lg-highlight-attr">items</span>: <!-- -->[ <!-- -->{ <span class="lg-highlight-attr">sku</span>: <span class="lg-highlight-string">"carrots"</span>, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">1.0</span> }<!-- -->, <!-- -->{ <span class="lg-highlight-attr">sku</span>: <span class="lg-highlight-string">"apples"</span>, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">2.5</span> } ]<!-- -->, <span class="lg-highlight-attr">status</span>: <span class="lg-highlight-string">"A"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">7</span>, <span class="lg-highlight-attr">cust_id</span>: <span class="lg-highlight-string">"Cam Elot"</span>, <span class="lg-highlight-attr">ord_date</span>: <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Date</span>(<span class="lg-highlight-string">"2020-03-20"</span>)<!-- -->, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">25</span>, <span class="lg-highlight-attr">items</span>: <!-- -->[ <!-- -->{ <span class="lg-highlight-attr">sku</span>: <span class="lg-highlight-string">"oranges"</span>, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">2.5</span> } ]<!-- -->, <span class="lg-highlight-attr">status</span>: <span class="lg-highlight-string">"A"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">8</span>, <span class="lg-highlight-attr">cust_id</span>: <span class="lg-highlight-string">"Don Quis"</span>, <span class="lg-highlight-attr">ord_date</span>: <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Date</span>(<span class="lg-highlight-string">"2020-03-20"</span>)<!-- -->, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">75</span>, <span class="lg-highlight-attr">items</span>: <!-- -->[ <!-- -->{ <span class="lg-highlight-attr">sku</span>: <span class="lg-highlight-string">"chocolates"</span>, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">10</span> }<!-- -->, <!-- -->{ <span class="lg-highlight-attr">sku</span>: <span class="lg-highlight-string">"apples"</span>, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">2.5</span> } ]<!-- -->, <span class="lg-highlight-attr">status</span>: <span class="lg-highlight-string">"A"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">9</span>, <span class="lg-highlight-attr">cust_id</span>: <span class="lg-highlight-string">"Don Quis"</span>, <span class="lg-highlight-attr">ord_date</span>: <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Date</span>(<span class="lg-highlight-string">"2020-03-20"</span>)<!-- -->, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">55</span>, <span class="lg-highlight-attr">items</span>: <!-- -->[ <!-- -->{ <span class="lg-highlight-attr">sku</span>: <span class="lg-highlight-string">"carrots"</span>, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">1.0</span> }<!-- -->, <!-- -->{ <span class="lg-highlight-attr">sku</span>: <span class="lg-highlight-string">"apples"</span>, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">2.5</span> }<!-- -->, <!-- -->{ <span class="lg-highlight-attr">sku</span>: <span class="lg-highlight-string">"oranges"</span>, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">2.5</span> } ]<!-- -->, <span class="lg-highlight-attr">status</span>: <span class="lg-highlight-string">"A"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-attr">cust_id</span>: <span class="lg-highlight-string">"Don Quis"</span>, <span class="lg-highlight-attr">ord_date</span>: <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Date</span>(<span class="lg-highlight-string">"2020-03-23"</span>)<!-- -->, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">25</span>, <span class="lg-highlight-attr">items</span>: <!-- -->[ <!-- -->{ <span class="lg-highlight-attr">sku</span>: <span class="lg-highlight-string">"oranges"</span>, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-attr">price</span>: <span class="lg-highlight-number">2.5</span> } ]<!-- -->, <span class="lg-highlight-attr">status</span>: <span class="lg-highlight-string">"A"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">])</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Return the Total Price Per Customer
<a class="headerlink leafygreen-ui-1kepx47" href="#return-the-total-price-per-customer" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="return-the-total-price-per-customer">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
Perform the map-reduce operation on the
<code class="leafygreen-ui-1l06pbn">
orders
</code>
collection to group
by the
<code class="leafygreen-ui-1l06pbn">
cust_id
</code>
, and calculate the sum of the
<code class="leafygreen-ui-1l06pbn">
price
</code>
for each
<code class="leafygreen-ui-1l06pbn">
cust_id
</code>
:
</p>
<ol class="leafygreen-ui-rioki0" type="1">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Define the map function to process each input document:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
In the function,
<code class="leafygreen-ui-1l06pbn">
this
</code>
refers to the document that the
map-reduce operation is processing.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The function maps the
<code class="leafygreen-ui-1l06pbn">
price
</code>
to the
<code class="leafygreen-ui-1l06pbn">
cust_id
</code>
for each
document and emits the
<code class="leafygreen-ui-1l06pbn">
cust_id
</code>
and
<code class="leafygreen-ui-1l06pbn">
price
</code>
.
</p>
</li>
</ul>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"var mapFunction1 = function() {\n emit(this.cust_id, this.price);\n};","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> mapFunction1 <!-- -->= <span class="lg-highlight-keyword lg-highlight-function">function</span>(<!-- -->)<!-- --> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-function">emit</span>(<span class="lg-highlight-variable lg-highlight-language">this</span>.<span class="lg-highlight-property">cust_id</span>, <span class="lg-highlight-variable lg-highlight-language">this</span>.<span class="lg-highlight-property">price</span>)<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}<!-- -->;</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Define the corresponding reduce function with two arguments
<code class="leafygreen-ui-1l06pbn">
keyCustId
</code>
and
<code class="leafygreen-ui-1l06pbn">
valuesPrices
</code>
:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
valuesPrices
</code>
is an array whose elements are the
<code class="leafygreen-ui-1l06pbn">
price
</code>
values emitted by the map function and grouped by
<code class="leafygreen-ui-1l06pbn">
keyCustId
</code>
.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The function reduces the
<code class="leafygreen-ui-1l06pbn">
valuesPrice
</code>
array to the
sum of its elements.
</p>
</li>
</ul>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"var reduceFunction1 = function(keyCustId, valuesPrices) {\n return Array.sum(valuesPrices);\n};","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> reduceFunction1 <!-- -->= <span class="lg-highlight-keyword lg-highlight-function">function</span>(<span class="lg-highlight-params">keyCustId, valuesPrices</span>)<!-- --> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">return</span> <span class="lg-highlight-title lg-highlight-class">Array</span>.<span class="lg-highlight-title lg-highlight-function">sum</span>(<!-- -->valuesPrices)<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}<!-- -->;</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Perform map-reduce on all documents in the
<code class="leafygreen-ui-1l06pbn">
orders
</code>
collection
using the
<code class="leafygreen-ui-1l06pbn">
mapFunction1
</code>
map function and the
<code class="leafygreen-ui-1l06pbn">
reduceFunction1
</code>
reduce function:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.orders.mapReduce(\n mapFunction1,\n reduceFunction1,\n { out: \"map_reduce_example\" }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">orders</span>.<span class="lg-highlight-title lg-highlight-function">mapReduce</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->mapFunction1<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->reduceFunction1<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">out</span>: <span class="lg-highlight-string">"map_reduce_example"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
This operation outputs the results to a collection named
<code class="leafygreen-ui-1l06pbn">
map_reduce_example
</code>
. If the
<code class="leafygreen-ui-1l06pbn">
map_reduce_example
</code>
collection
already exists, the operation will replace the contents with the
results of this map-reduce operation.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Query the
<code class="leafygreen-ui-1l06pbn">
map_reduce_example
</code>
collection to verify the results:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.map_reduce_example.find().sort( { _id: 1 } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">map_reduce_example</span>.<span class="lg-highlight-title lg-highlight-function">find</span>(<!-- -->).<span class="lg-highlight-title lg-highlight-function">sort</span>( <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">1</span> } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The operation returns these documents:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ \"_id\" : \"Ant O. Knee\", \"value\" : 95 }\n{ \"_id\" : \"Busby Bee\", \"value\" : 125 }\n{ \"_id\" : \"Cam Elot\", \"value\" : 60 }\n{ \"_id\" : \"Don Quis\", \"value\" : 155 }","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"Ant O. Knee"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <span class="lg-highlight-number">95</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"Busby Bee"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <span class="lg-highlight-number">125</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"Cam Elot"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <span class="lg-highlight-number">60</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"Don Quis"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <span class="lg-highlight-number">155</span> }</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</li>
</ol>
<section>
<h5 class="contains-headerlink leafygreen-ui-1vzlt5f">
Aggregation Alternative
<a class="headerlink leafygreen-ui-1kepx47" href="#aggregation-alternative" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="aggregation-alternative">
</div>
</a>
</h5>
<p class="leafygreen-ui-1kp3ins">
Using the available aggregation pipeline operators, you can rewrite
the map-reduce operation without defining custom functions:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.orders.aggregate([\n { $group: { _id: \"$cust_id\", value: { $sum: \"$price\" } } },\n { $out: \"agg_alternative_1\" }\n])","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">orders</span>.<span class="lg-highlight-title lg-highlight-function">aggregate</span>(<!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">$group</span>: <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-string">"$cust_id"</span>, <span class="lg-highlight-attr">value</span>: <!-- -->{ <span class="lg-highlight-attr">$sum</span>: <span class="lg-highlight-string">"$price"</span> } } }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">$out</span>: <span class="lg-highlight-string">"agg_alternative_1"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">])</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<ol class="leafygreen-ui-rioki0" type="1">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/group/#mongodb-pipeline-pipe.-group">
<code class="leafygreen-ui-1l06pbn">
$group
</code>
</a>
stage groups by the
<code class="leafygreen-ui-1l06pbn">
cust_id
</code>
and
calculates the
<code class="leafygreen-ui-1l06pbn">
value
</code>
field (See also
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/sum/#mongodb-group-grp.-sum">
<code class="leafygreen-ui-1l06pbn">
$sum
</code>
</a>
). The
<code class="leafygreen-ui-1l06pbn">
value
</code>
field contains the total
<code class="leafygreen-ui-1l06pbn">
price
</code>
for each
<code class="leafygreen-ui-1l06pbn">
cust_id
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
The stage output the following documents to the next stage:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ \"_id\" : \"Don Quis\", \"value\" : 155 }\n{ \"_id\" : \"Ant O. Knee\", \"value\" : 95 }\n{ \"_id\" : \"Cam Elot\", \"value\" : 60 }\n{ \"_id\" : \"Busby Bee\", \"value\" : 125 }","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"Don Quis"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <span class="lg-highlight-number">155</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"Ant O. Knee"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <span class="lg-highlight-number">95</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"Cam Elot"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <span class="lg-highlight-number">60</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"Busby Bee"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <span class="lg-highlight-number">125</span> }</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Then, the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/out/#mongodb-pipeline-pipe.-out">
<code class="leafygreen-ui-1l06pbn">
$out
</code>
</a>
writes the output to the collection
<code class="leafygreen-ui-1l06pbn">
agg_alternative_1
</code>
. Alternatively, you could use
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/merge/#mongodb-pipeline-pipe.-merge">
<code class="leafygreen-ui-1l06pbn">
$merge
</code>
</a>
instead of
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/out/#mongodb-pipeline-pipe.-out">
<code class="leafygreen-ui-1l06pbn">
$out
</code>
.
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Query the
<code class="leafygreen-ui-1l06pbn">
agg_alternative_1
</code>
collection to verify the results:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.agg_alternative_1.find().sort( { _id: 1 } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">agg_alternative_1</span>.<span class="lg-highlight-title lg-highlight-function">find</span>(<!-- -->).<span class="lg-highlight-title lg-highlight-function">sort</span>( <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">1</span> } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The operation returns the following documents:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ \"_id\" : \"Ant O. Knee\", \"value\" : 95 }\n{ \"_id\" : \"Busby Bee\", \"value\" : 125 }\n{ \"_id\" : \"Cam Elot\", \"value\" : 60 }\n{ \"_id\" : \"Don Quis\", \"value\" : 155 }","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"Ant O. Knee"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <span class="lg-highlight-number">95</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"Busby Bee"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <span class="lg-highlight-number">125</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"Cam Elot"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <span class="lg-highlight-number">60</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"Don Quis"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <span class="lg-highlight-number">155</span> }</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</li>
</ol>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
For an alternative that uses custom aggregation expressions, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/map-reduce-to-aggregation-pipeline/#std-label-mr-to-agg-examples1">
Map-Reduce to Aggregation Pipeline Translation Examples
<!-- -->
.
</a>
</p>
</div>
</div>
</section>
</section>
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Calculate Order and Total Quantity with Average Quantity Per Item
<a class="headerlink leafygreen-ui-1kepx47" href="#calculate-order-and-total-quantity-with-average-quantity-per-item" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="calculate-order-and-total-quantity-with-average-quantity-per-item">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
In the following example, you will see a map-reduce operation on the
<code class="leafygreen-ui-1l06pbn">
orders
</code>
collection for all documents that have an
<code class="leafygreen-ui-1l06pbn">
ord_date
</code>
value
greater than or equal to
<code class="leafygreen-ui-1l06pbn">
2020-03-01
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
The operation in the example:
</p>
<ol class="leafygreen-ui-rioki0" type="1">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Groups by the
<code class="leafygreen-ui-1l06pbn">
item.sku
</code>
field, and calculates the number of orders
and the total quantity ordered for each
<code class="leafygreen-ui-1l06pbn">
sku
</code>
.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Calculates the average quantity per order for each
<code class="leafygreen-ui-1l06pbn">
sku
</code>
value and
merges the results into the output collection.
</p>
</li>
</ol>
<p class="leafygreen-ui-1kp3ins">
When merging results, if an existing document has the same key as the
new result, the operation overwrites the existing document. If there is
no existing document with the same key, the operation inserts the
document.
</p>
<p class="leafygreen-ui-1kp3ins">
Example steps:
</p>
<ol class="leafygreen-ui-rioki0" type="1">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Define the map function to process each input document:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
In the function,
<code class="leafygreen-ui-1l06pbn">
this
</code>
refers to the document that the
map-reduce operation is processing.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For each item, the function associates the
<code class="leafygreen-ui-1l06pbn">
sku
</code>
with a new
object
<code class="leafygreen-ui-1l06pbn">
value
</code>
that contains the
<code class="leafygreen-ui-1l06pbn">
count
</code>
of
<code class="leafygreen-ui-1l06pbn">
1
</code>
and the item
<code class="leafygreen-ui-1l06pbn">
qty
</code>
for the order and emits the
<code class="leafygreen-ui-1l06pbn">
sku
</code>
(stored in the
<code class="leafygreen-ui-1l06pbn">
key
</code>
)
and the
<code class="leafygreen-ui-1l06pbn">
value
</code>
.
</p>
</li>
</ul>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":" var mapFunction2 = function() {\n for (var idx = 0; idx < this.items.length; idx++) {\n var key = this.items[idx].sku;\n var value = { count: 1, qty: this.items[idx].qty };\n\n emit(key, value);\n }\n};","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">var</span> mapFunction2 <!-- -->= <span class="lg-highlight-keyword lg-highlight-function">function</span>(<!-- -->)<!-- --> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">for</span> <!-- -->(<span class="lg-highlight-keyword">var</span> idx <!-- -->= <span class="lg-highlight-number">0</span>; <!-- -->idx <!-- -->< <span class="lg-highlight-variable lg-highlight-language">this</span>.<span class="lg-highlight-property">items</span>.<span class="lg-highlight-property">length</span>; <!-- -->idx<!-- -->+<!-- -->+<!-- -->) <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">var</span> key <!-- -->= <span class="lg-highlight-variable lg-highlight-language">this</span>.<span class="lg-highlight-property">items</span>[<!-- -->idx].<span class="lg-highlight-property">sku</span>;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">var</span> value <!-- -->= <!-- -->{ <span class="lg-highlight-attr">count</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-variable lg-highlight-language">this</span>.<span class="lg-highlight-property">items</span>[<!-- -->idx].<span class="lg-highlight-property">qty</span> }<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-function">emit</span>(<!-- -->key<!-- -->, <!-- -->value)<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->}</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}<!-- -->;</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Define the corresponding reduce function with two arguments
<code class="leafygreen-ui-1l06pbn">
keySKU
</code>
and
<code class="leafygreen-ui-1l06pbn">
countObjVals
</code>
:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
countObjVals
</code>
is an array whose elements are the objects
mapped to the grouped
<code class="leafygreen-ui-1l06pbn">
keySKU
</code>
values passed by map
function to the reducer function.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The function reduces the
<code class="leafygreen-ui-1l06pbn">
countObjVals
</code>
array to a single
object
<code class="leafygreen-ui-1l06pbn">
reducedValue
</code>
that contains the
<code class="leafygreen-ui-1l06pbn">
count
</code>
and the
<code class="leafygreen-ui-1l06pbn">
qty
</code>
fields.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
In
<code class="leafygreen-ui-1l06pbn">
reducedVal
</code>
, the
<code class="leafygreen-ui-1l06pbn">
count
</code>
field contains the sum of the
<code class="leafygreen-ui-1l06pbn">
count
</code>
fields from the individual array elements, and the
<code class="leafygreen-ui-1l06pbn">
qty
</code>
field contains the sum of the
<code class="leafygreen-ui-1l06pbn">
qty
</code>
fields from the
individual array elements.
</p>
</li>
</ul>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"var reduceFunction2 = function(keySKU, countObjVals) {\n reducedVal = { count: 0, qty: 0 };\n\n for (var idx = 0; idx < countObjVals.length; idx++) {\n reducedVal.count += countObjVals[idx].count;\n reducedVal.qty += countObjVals[idx].qty;\n }\n\n return reducedVal;\n};","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> reduceFunction2 <!-- -->= <span class="lg-highlight-keyword lg-highlight-function">function</span>(<span class="lg-highlight-params">keySKU, countObjVals</span>)<!-- --> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->reducedVal <!-- -->= <!-- -->{ <span class="lg-highlight-attr">count</span>: <span class="lg-highlight-number">0</span>, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-number">0</span> }<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">for</span> <!-- -->(<span class="lg-highlight-keyword">var</span> idx <!-- -->= <span class="lg-highlight-number">0</span>; <!-- -->idx <!-- -->< <!-- -->countObjVals.<span class="lg-highlight-property">length</span>; <!-- -->idx<!-- -->+<!-- -->+<!-- -->) <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->reducedVal.<span class="lg-highlight-property">count</span> <!-- -->+<!-- -->= <!-- -->countObjVals<!-- -->[<!-- -->idx].<span class="lg-highlight-property">count</span>;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->reducedVal.<span class="lg-highlight-property">qty</span> <!-- -->+<!-- -->= <!-- -->countObjVals<!-- -->[<!-- -->idx].<span class="lg-highlight-property">qty</span>;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->}</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">return</span> <!-- -->reducedVal<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}<!-- -->;</td></tr></tbody></table></code></pre>
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<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Define a finalize function with two arguments
<code class="leafygreen-ui-1l06pbn">
key
</code>
and
<code class="leafygreen-ui-1l06pbn">
reducedVal
</code>
. The function modifies the
<code class="leafygreen-ui-1l06pbn">
reducedVal
</code>
object
to add a computed field named
<code class="leafygreen-ui-1l06pbn">
avg
</code>
and returns the modified
object:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"var finalizeFunction2 = function (key, reducedVal) {\n reducedVal.avg = reducedVal.qty/reducedVal.count;\n return reducedVal;\n};","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> finalizeFunction2 <!-- -->= <span class="lg-highlight-keyword lg-highlight-function">function</span> <!-- -->(<span class="lg-highlight-params">key, reducedVal</span>)<!-- --> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->reducedVal.<span class="lg-highlight-property">avg</span> <!-- -->= <!-- -->reducedVal.<span class="lg-highlight-property">qty</span>/<!-- -->reducedVal.<span class="lg-highlight-property">count</span>;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">return</span> <!-- -->reducedVal<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}<!-- -->;</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Perform the map-reduce operation on the
<code class="leafygreen-ui-1l06pbn">
orders
</code>
collection using
the
<code class="leafygreen-ui-1l06pbn">
mapFunction2
</code>
,
<code class="leafygreen-ui-1l06pbn">
reduceFunction2
</code>
, and
<code class="leafygreen-ui-1l06pbn">
finalizeFunction2
</code>
functions:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.orders.mapReduce(\n mapFunction2,\n reduceFunction2,\n {\n out: { merge: \"map_reduce_example2\" },\n query: { ord_date: { $gte: new Date(\"2020-03-01\") } },\n finalize: finalizeFunction2\n }\n );","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">orders</span>.<span class="lg-highlight-title lg-highlight-function">mapReduce</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->mapFunction2<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->reduceFunction2<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">out</span>: <!-- -->{ <span class="lg-highlight-attr">merge</span>: <span class="lg-highlight-string">"map_reduce_example2"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">query</span>: <!-- -->{ <span class="lg-highlight-attr">ord_date</span>: <!-- -->{ <span class="lg-highlight-attr">$gte</span>: <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Date</span>(<span class="lg-highlight-string">"2020-03-01"</span>) } }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">finalize</span>: <!-- -->finalizeFunction2</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> )<!-- -->;</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
This operation uses the
<code class="leafygreen-ui-1l06pbn">
query
</code>
field to select only those
documents with
<code class="leafygreen-ui-1l06pbn">
ord_date
</code>
greater than or equal to
<code class="leafygreen-ui-1l06pbn">
new
Date("2020-03-01")
</code>
. Then it outputs the results to a collection
<code class="leafygreen-ui-1l06pbn">
map_reduce_example2
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
If the
<code class="leafygreen-ui-1l06pbn">
map_reduce_example2
</code>
collection already exists, the
operation will merge the existing contents with the results of this
map-reduce operation. That is, if an existing document has the same
key as the new result, the operation overwrites the existing
document. If there is no existing document with the same key, the
operation inserts the document.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Query the
<code class="leafygreen-ui-1l06pbn">
map_reduce_example2
</code>
collection to verify the results:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.map_reduce_example2.find().sort( { _id: 1 } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">map_reduce_example2</span>.<span class="lg-highlight-title lg-highlight-function">find</span>(<!-- -->).<span class="lg-highlight-title lg-highlight-function">sort</span>( <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">1</span> } )</td></tr></tbody></table></code></pre>
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<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The operation returns these documents:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ \"_id\" : \"apples\", \"value\" : { \"count\" : 4, \"qty\" : 35, \"avg\" : 8.75 } }\n{ \"_id\" : \"carrots\", \"value\" : { \"count\" : 2, \"qty\" : 15, \"avg\" : 7.5 } }\n{ \"_id\" : \"chocolates\", \"value\" : { \"count\" : 3, \"qty\" : 15, \"avg\" : 5 } }\n{ \"_id\" : \"oranges\", \"value\" : { \"count\" : 7, \"qty\" : 63, \"avg\" : 9 } }\n{ \"_id\" : \"pears\", \"value\" : { \"count\" : 1, \"qty\" : 10, \"avg\" : 10 } }","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"apples"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"count"</span> <!-- -->: <span class="lg-highlight-number">4</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">35</span>, <span class="lg-highlight-string">"avg"</span> <!-- -->: <span class="lg-highlight-number">8.75</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"carrots"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"count"</span> <!-- -->: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">15</span>, <span class="lg-highlight-string">"avg"</span> <!-- -->: <span class="lg-highlight-number">7.5</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"chocolates"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"count"</span> <!-- -->: <span class="lg-highlight-number">3</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">15</span>, <span class="lg-highlight-string">"avg"</span> <!-- -->: <span class="lg-highlight-number">5</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"oranges"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"count"</span> <!-- -->: <span class="lg-highlight-number">7</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">63</span>, <span class="lg-highlight-string">"avg"</span> <!-- -->: <span class="lg-highlight-number">9</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"pears"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"count"</span> <!-- -->: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-string">"avg"</span> <!-- -->: <span class="lg-highlight-number">10</span> } }</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</li>
</ol>
<section>
<h5 class="contains-headerlink leafygreen-ui-1vzlt5f">
Aggregation Alternative
<a class="headerlink leafygreen-ui-1kepx47" href="#aggregation-alternative-1" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="aggregation-alternative-1">
</div>
</a>
</h5>
<p class="leafygreen-ui-1kp3ins">
Using the available aggregation pipeline operators, you can rewrite
the map-reduce operation without defining custom functions:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.orders.aggregate( [\n { $match: { ord_date: { $gte: new Date(\"2020-03-01\") } } },\n { $unwind: \"$items\" },\n { $group: { _id: \"$items.sku\", qty: { $sum: \"$items.qty\" }, orders_ids: { $addToSet: \"$_id\" } } },\n { $project: { value: { count: { $size: \"$orders_ids\" }, qty: \"$qty\", avg: { $divide: [ \"$qty\", { $size: \"$orders_ids\" } ] } } } },\n { $merge: { into: \"agg_alternative_3\", on: \"_id\", whenMatched: \"replace\", whenNotMatched: \"insert\" } }\n] )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">orders</span>.<span class="lg-highlight-title lg-highlight-function">aggregate</span>( <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">$match</span>: <!-- -->{ <span class="lg-highlight-attr">ord_date</span>: <!-- -->{ <span class="lg-highlight-attr">$gte</span>: <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Date</span>(<span class="lg-highlight-string">"2020-03-01"</span>) } } }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">$unwind</span>: <span class="lg-highlight-string">"$items"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">$group</span>: <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-string">"$items.sku"</span>, <span class="lg-highlight-attr">qty</span>: <!-- -->{ <span class="lg-highlight-attr">$sum</span>: <span class="lg-highlight-string">"$items.qty"</span> }<!-- -->, <span class="lg-highlight-attr">orders_ids</span>: <!-- -->{ <span class="lg-highlight-attr">$addToSet</span>: <span class="lg-highlight-string">"$_id"</span> } } }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">$project</span>: <!-- -->{ <span class="lg-highlight-attr">value</span>: <!-- -->{ <span class="lg-highlight-attr">count</span>: <!-- -->{ <span class="lg-highlight-attr">$size</span>: <span class="lg-highlight-string">"$orders_ids"</span> }<!-- -->, <span class="lg-highlight-attr">qty</span>: <span class="lg-highlight-string">"$qty"</span>, <span class="lg-highlight-attr">avg</span>: <!-- -->{ <span class="lg-highlight-attr">$divide</span>: <!-- -->[ <span class="lg-highlight-string">"$qty"</span>, <!-- -->{ <span class="lg-highlight-attr">$size</span>: <span class="lg-highlight-string">"$orders_ids"</span> } ] } } } }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">$merge</span>: <!-- -->{ <span class="lg-highlight-attr">into</span>: <span class="lg-highlight-string">"agg_alternative_3"</span>, <span class="lg-highlight-attr">on</span>: <span class="lg-highlight-string">"_id"</span>, <span class="lg-highlight-attr">whenMatched</span>: <span class="lg-highlight-string">"replace"</span>, <span class="lg-highlight-attr">whenNotMatched</span>: <span class="lg-highlight-string">"insert"</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">] )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<ol class="leafygreen-ui-rioki0" type="1">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/match/#mongodb-pipeline-pipe.-match">
<code class="leafygreen-ui-1l06pbn">
$match
</code>
</a>
stage selects only those
documents with
<code class="leafygreen-ui-1l06pbn">
ord_date
</code>
greater than or equal to
<code class="leafygreen-ui-1l06pbn">
new
Date("2020-03-01")
</code>
.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/unwind/#mongodb-pipeline-pipe.-unwind">
<code class="leafygreen-ui-1l06pbn">
$unwind
</code>
</a>
stage breaks down the document by
the
<code class="leafygreen-ui-1l06pbn">
items
</code>
array field to output a document for each array
element. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ \"_id\" : 1, \"cust_id\" : \"Ant O. Knee\", \"ord_date\" : ISODate(\"2020-03-01T00:00:00Z\"), \"price\" : 25, \"items\" : { \"sku\" : \"oranges\", \"qty\" : 5, \"price\" : 2.5 }, \"status\" : \"A\" }\n{ \"_id\" : 1, \"cust_id\" : \"Ant O. Knee\", \"ord_date\" : ISODate(\"2020-03-01T00:00:00Z\"), \"price\" : 25, \"items\" : { \"sku\" : \"apples\", \"qty\" : 5, \"price\" : 2.5 }, \"status\" : \"A\" }\n{ \"_id\" : 2, \"cust_id\" : \"Ant O. Knee\", \"ord_date\" : ISODate(\"2020-03-08T00:00:00Z\"), \"price\" : 70, \"items\" : { \"sku\" : \"oranges\", \"qty\" : 8, \"price\" : 2.5 }, \"status\" : \"A\" }\n{ \"_id\" : 2, \"cust_id\" : \"Ant O. Knee\", \"ord_date\" : ISODate(\"2020-03-08T00:00:00Z\"), \"price\" : 70, \"items\" : { \"sku\" : \"chocolates\", \"qty\" : 5, \"price\" : 10 }, \"status\" : \"A\" }\n{ \"_id\" : 3, \"cust_id\" : \"Busby Bee\", \"ord_date\" : ISODate(\"2020-03-08T00:00:00Z\"), \"price\" : 50, \"items\" : { \"sku\" : \"oranges\", \"qty\" : 10, \"price\" : 2.5 }, \"status\" : \"A\" }\n{ \"_id\" : 3, \"cust_id\" : \"Busby Bee\", \"ord_date\" : ISODate(\"2020-03-08T00:00:00Z\"), \"price\" : 50, \"items\" : { \"sku\" : \"pears\", \"qty\" : 10, \"price\" : 2.5 }, \"status\" : \"A\" }\n{ \"_id\" : 4, \"cust_id\" : \"Busby Bee\", \"ord_date\" : ISODate(\"2020-03-18T00:00:00Z\"), \"price\" : 25, \"items\" : { \"sku\" : \"oranges\", \"qty\" : 10, \"price\" : 2.5 }, \"status\" : \"A\" }\n{ \"_id\" : 5, \"cust_id\" : \"Busby Bee\", \"ord_date\" : ISODate(\"2020-03-19T00:00:00Z\"), \"price\" : 50, \"items\" : { \"sku\" : \"chocolates\", \"qty\" : 5, \"price\" : 10 }, \"status\" : \"A\" }\n...","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-string">"cust_id"</span> <!-- -->: <span class="lg-highlight-string">"Ant O. Knee"</span>, <span class="lg-highlight-string">"ord_date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-03-01T00:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">25</span>, <span class="lg-highlight-string">"items"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"sku"</span> <!-- -->: <span class="lg-highlight-string">"oranges"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">2.5</span> }<!-- -->, <span class="lg-highlight-string">"status"</span> <!-- -->: <span class="lg-highlight-string">"A"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-string">"cust_id"</span> <!-- -->: <span class="lg-highlight-string">"Ant O. Knee"</span>, <span class="lg-highlight-string">"ord_date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-03-01T00:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">25</span>, <span class="lg-highlight-string">"items"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"sku"</span> <!-- -->: <span class="lg-highlight-string">"apples"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">2.5</span> }<!-- -->, <span class="lg-highlight-string">"status"</span> <!-- -->: <span class="lg-highlight-string">"A"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-string">"cust_id"</span> <!-- -->: <span class="lg-highlight-string">"Ant O. Knee"</span>, <span class="lg-highlight-string">"ord_date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-03-08T00:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">70</span>, <span class="lg-highlight-string">"items"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"sku"</span> <!-- -->: <span class="lg-highlight-string">"oranges"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">8</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">2.5</span> }<!-- -->, <span class="lg-highlight-string">"status"</span> <!-- -->: <span class="lg-highlight-string">"A"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-string">"cust_id"</span> <!-- -->: <span class="lg-highlight-string">"Ant O. Knee"</span>, <span class="lg-highlight-string">"ord_date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-03-08T00:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">70</span>, <span class="lg-highlight-string">"items"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"sku"</span> <!-- -->: <span class="lg-highlight-string">"chocolates"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">10</span> }<!-- -->, <span class="lg-highlight-string">"status"</span> <!-- -->: <span class="lg-highlight-string">"A"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">3</span>, <span class="lg-highlight-string">"cust_id"</span> <!-- -->: <span class="lg-highlight-string">"Busby Bee"</span>, <span class="lg-highlight-string">"ord_date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-03-08T00:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">50</span>, <span class="lg-highlight-string">"items"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"sku"</span> <!-- -->: <span class="lg-highlight-string">"oranges"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">2.5</span> }<!-- -->, <span class="lg-highlight-string">"status"</span> <!-- -->: <span class="lg-highlight-string">"A"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">3</span>, <span class="lg-highlight-string">"cust_id"</span> <!-- -->: <span class="lg-highlight-string">"Busby Bee"</span>, <span class="lg-highlight-string">"ord_date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-03-08T00:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">50</span>, <span class="lg-highlight-string">"items"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"sku"</span> <!-- -->: <span class="lg-highlight-string">"pears"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">2.5</span> }<!-- -->, <span class="lg-highlight-string">"status"</span> <!-- -->: <span class="lg-highlight-string">"A"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">4</span>, <span class="lg-highlight-string">"cust_id"</span> <!-- -->: <span class="lg-highlight-string">"Busby Bee"</span>, <span class="lg-highlight-string">"ord_date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-03-18T00:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">25</span>, <span class="lg-highlight-string">"items"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"sku"</span> <!-- -->: <span class="lg-highlight-string">"oranges"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">2.5</span> }<!-- -->, <span class="lg-highlight-string">"status"</span> <!-- -->: <span class="lg-highlight-string">"A"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-string">"cust_id"</span> <!-- -->: <span class="lg-highlight-string">"Busby Bee"</span>, <span class="lg-highlight-string">"ord_date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-03-19T00:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">50</span>, <span class="lg-highlight-string">"items"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"sku"</span> <!-- -->: <span class="lg-highlight-string">"chocolates"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">10</span> }<!-- -->, <span class="lg-highlight-string">"status"</span> <!-- -->: <span class="lg-highlight-string">"A"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">...</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/group/#mongodb-pipeline-pipe.-group">
<code class="leafygreen-ui-1l06pbn">
$group
</code>
</a>
stage groups by the
<code class="leafygreen-ui-1l06pbn">
items.sku
</code>
, calculating for each sku:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<dl>
<dt>
The
<code class="leafygreen-ui-1l06pbn">
qty
</code>
field. The
<code class="leafygreen-ui-1l06pbn">
qty
</code>
field contains the
</dt>
<dd class="css-1ufxuu7">
total
<code class="leafygreen-ui-1l06pbn">
qty
</code>
ordered per each
<code class="leafygreen-ui-1l06pbn">
items.sku
</code>
(See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/sum/#mongodb-group-grp.-sum">
<code class="leafygreen-ui-1l06pbn">
$sum
</code>
</a>
).
</dd>
</dl>
</li>
<li class="leafygreen-ui-d7p7b6">
<dl>
<dt>
The
<code class="leafygreen-ui-1l06pbn">
orders_ids
</code>
array. The
<code class="leafygreen-ui-1l06pbn">
orders_ids
</code>
field contains an
</dt>
<dd class="css-1ufxuu7">
array of distinct order
<code class="leafygreen-ui-1l06pbn">
_id
</code>
's for the
<code class="leafygreen-ui-1l06pbn">
items.sku
</code>
(See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/addToSet/#mongodb-group-grp.-addToSet">
<code class="leafygreen-ui-1l06pbn">
$addToSet
</code>
</a>
).
</dd>
</dl>
</li>
</ul>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ \"_id\" : \"chocolates\", \"qty\" : 15, \"orders_ids\" : [ 2, 5, 8 ] }\n{ \"_id\" : \"oranges\", \"qty\" : 63, \"orders_ids\" : [ 4, 7, 3, 2, 9, 1, 10 ] }\n{ \"_id\" : \"carrots\", \"qty\" : 15, \"orders_ids\" : [ 6, 9 ] }\n{ \"_id\" : \"apples\", \"qty\" : 35, \"orders_ids\" : [ 9, 8, 1, 6 ] }\n{ \"_id\" : \"pears\", \"qty\" : 10, \"orders_ids\" : [ 3 ] }","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"chocolates"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">15</span>, <span class="lg-highlight-string">"orders_ids"</span> <!-- -->: <!-- -->[ <span class="lg-highlight-number">2</span>, <span class="lg-highlight-number">5</span>, <span class="lg-highlight-number">8</span> ] }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"oranges"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">63</span>, <span class="lg-highlight-string">"orders_ids"</span> <!-- -->: <!-- -->[ <span class="lg-highlight-number">4</span>, <span class="lg-highlight-number">7</span>, <span class="lg-highlight-number">3</span>, <span class="lg-highlight-number">2</span>, <span class="lg-highlight-number">9</span>, <span class="lg-highlight-number">1</span>, <span class="lg-highlight-number">10</span> ] }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"carrots"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">15</span>, <span class="lg-highlight-string">"orders_ids"</span> <!-- -->: <!-- -->[ <span class="lg-highlight-number">6</span>, <span class="lg-highlight-number">9</span> ] }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"apples"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">35</span>, <span class="lg-highlight-string">"orders_ids"</span> <!-- -->: <!-- -->[ <span class="lg-highlight-number">9</span>, <span class="lg-highlight-number">8</span>, <span class="lg-highlight-number">1</span>, <span class="lg-highlight-number">6</span> ] }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"pears"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-string">"orders_ids"</span> <!-- -->: <!-- -->[ <span class="lg-highlight-number">3</span> ] }</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/project/#mongodb-pipeline-pipe.-project">
<code class="leafygreen-ui-1l06pbn">
$project
</code>
</a>
stage reshapes the output document to
mirror the map-reduce's output to have two fields
<code class="leafygreen-ui-1l06pbn">
_id
</code>
and
<code class="leafygreen-ui-1l06pbn">
value
</code>
. The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/project/#mongodb-pipeline-pipe.-project">
<code class="leafygreen-ui-1l06pbn">
$project
</code>
</a>
sets:
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/unwind/#mongodb-pipeline-pipe.-unwind">
<code class="leafygreen-ui-1l06pbn">
$unwind
</code>
</a>
stage breaks down the document by
the
<code class="leafygreen-ui-1l06pbn">
items
</code>
array field to output a document for each array
element. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ \"_id\" : 1, \"cust_id\" : \"Ant O. Knee\", \"ord_date\" : ISODate(\"2020-03-01T00:00:00Z\"), \"price\" : 25, \"items\" : { \"sku\" : \"oranges\", \"qty\" : 5, \"price\" : 2.5 }, \"status\" : \"A\" }\n{ \"_id\" : 1, \"cust_id\" : \"Ant O. Knee\", \"ord_date\" : ISODate(\"2020-03-01T00:00:00Z\"), \"price\" : 25, \"items\" : { \"sku\" : \"apples\", \"qty\" : 5, \"price\" : 2.5 }, \"status\" : \"A\" }\n{ \"_id\" : 2, \"cust_id\" : \"Ant O. Knee\", \"ord_date\" : ISODate(\"2020-03-08T00:00:00Z\"), \"price\" : 70, \"items\" : { \"sku\" : \"oranges\", \"qty\" : 8, \"price\" : 2.5 }, \"status\" : \"A\" }\n{ \"_id\" : 2, \"cust_id\" : \"Ant O. Knee\", \"ord_date\" : ISODate(\"2020-03-08T00:00:00Z\"), \"price\" : 70, \"items\" : { \"sku\" : \"chocolates\", \"qty\" : 5, \"price\" : 10 }, \"status\" : \"A\" }\n{ \"_id\" : 3, \"cust_id\" : \"Busby Bee\", \"ord_date\" : ISODate(\"2020-03-08T00:00:00Z\"), \"price\" : 50, \"items\" : { \"sku\" : \"oranges\", \"qty\" : 10, \"price\" : 2.5 }, \"status\" : \"A\" }\n{ \"_id\" : 3, \"cust_id\" : \"Busby Bee\", \"ord_date\" : ISODate(\"2020-03-08T00:00:00Z\"), \"price\" : 50, \"items\" : { \"sku\" : \"pears\", \"qty\" : 10, \"price\" : 2.5 }, \"status\" : \"A\" }\n{ \"_id\" : 4, \"cust_id\" : \"Busby Bee\", \"ord_date\" : ISODate(\"2020-03-18T00:00:00Z\"), \"price\" : 25, \"items\" : { \"sku\" : \"oranges\", \"qty\" : 10, \"price\" : 2.5 }, \"status\" : \"A\" }\n{ \"_id\" : 5, \"cust_id\" : \"Busby Bee\", \"ord_date\" : ISODate(\"2020-03-19T00:00:00Z\"), \"price\" : 50, \"items\" : { \"sku\" : \"chocolates\", \"qty\" : 5, \"price\" : 10 }, \"status\" : \"A\" }\n...","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-string">"cust_id"</span> <!-- -->: <span class="lg-highlight-string">"Ant O. Knee"</span>, <span class="lg-highlight-string">"ord_date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-03-01T00:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">25</span>, <span class="lg-highlight-string">"items"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"sku"</span> <!-- -->: <span class="lg-highlight-string">"oranges"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">2.5</span> }<!-- -->, <span class="lg-highlight-string">"status"</span> <!-- -->: <span class="lg-highlight-string">"A"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-string">"cust_id"</span> <!-- -->: <span class="lg-highlight-string">"Ant O. Knee"</span>, <span class="lg-highlight-string">"ord_date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-03-01T00:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">25</span>, <span class="lg-highlight-string">"items"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"sku"</span> <!-- -->: <span class="lg-highlight-string">"apples"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">2.5</span> }<!-- -->, <span class="lg-highlight-string">"status"</span> <!-- -->: <span class="lg-highlight-string">"A"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-string">"cust_id"</span> <!-- -->: <span class="lg-highlight-string">"Ant O. Knee"</span>, <span class="lg-highlight-string">"ord_date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-03-08T00:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">70</span>, <span class="lg-highlight-string">"items"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"sku"</span> <!-- -->: <span class="lg-highlight-string">"oranges"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">8</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">2.5</span> }<!-- -->, <span class="lg-highlight-string">"status"</span> <!-- -->: <span class="lg-highlight-string">"A"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-string">"cust_id"</span> <!-- -->: <span class="lg-highlight-string">"Ant O. Knee"</span>, <span class="lg-highlight-string">"ord_date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-03-08T00:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">70</span>, <span class="lg-highlight-string">"items"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"sku"</span> <!-- -->: <span class="lg-highlight-string">"chocolates"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">10</span> }<!-- -->, <span class="lg-highlight-string">"status"</span> <!-- -->: <span class="lg-highlight-string">"A"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">3</span>, <span class="lg-highlight-string">"cust_id"</span> <!-- -->: <span class="lg-highlight-string">"Busby Bee"</span>, <span class="lg-highlight-string">"ord_date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-03-08T00:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">50</span>, <span class="lg-highlight-string">"items"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"sku"</span> <!-- -->: <span class="lg-highlight-string">"oranges"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">2.5</span> }<!-- -->, <span class="lg-highlight-string">"status"</span> <!-- -->: <span class="lg-highlight-string">"A"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">3</span>, <span class="lg-highlight-string">"cust_id"</span> <!-- -->: <span class="lg-highlight-string">"Busby Bee"</span>, <span class="lg-highlight-string">"ord_date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-03-08T00:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">50</span>, <span class="lg-highlight-string">"items"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"sku"</span> <!-- -->: <span class="lg-highlight-string">"pears"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">2.5</span> }<!-- -->, <span class="lg-highlight-string">"status"</span> <!-- -->: <span class="lg-highlight-string">"A"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">4</span>, <span class="lg-highlight-string">"cust_id"</span> <!-- -->: <span class="lg-highlight-string">"Busby Bee"</span>, <span class="lg-highlight-string">"ord_date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-03-18T00:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">25</span>, <span class="lg-highlight-string">"items"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"sku"</span> <!-- -->: <span class="lg-highlight-string">"oranges"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">2.5</span> }<!-- -->, <span class="lg-highlight-string">"status"</span> <!-- -->: <span class="lg-highlight-string">"A"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-string">"cust_id"</span> <!-- -->: <span class="lg-highlight-string">"Busby Bee"</span>, <span class="lg-highlight-string">"ord_date"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"2020-03-19T00:00:00Z"</span>)<!-- -->, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">50</span>, <span class="lg-highlight-string">"items"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"sku"</span> <!-- -->: <span class="lg-highlight-string">"chocolates"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-string">"price"</span> <!-- -->: <span class="lg-highlight-number">10</span> }<!-- -->, <span class="lg-highlight-string">"status"</span> <!-- -->: <span class="lg-highlight-string">"A"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">...</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/group/#mongodb-pipeline-pipe.-group">
<code class="leafygreen-ui-1l06pbn">
$group
</code>
</a>
stage groups by the
<code class="leafygreen-ui-1l06pbn">
items.sku
</code>
, calculating for each sku:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
qty
</code>
field. The
<code class="leafygreen-ui-1l06pbn">
qty
</code>
field contains the
total
<code class="leafygreen-ui-1l06pbn">
qty
</code>
ordered per each
<code class="leafygreen-ui-1l06pbn">
items.sku
</code>
using
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/sum/#mongodb-group-grp.-sum">
<code class="leafygreen-ui-1l06pbn">
$sum
</code>
.
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
orders_ids
</code>
array. The
<code class="leafygreen-ui-1l06pbn">
orders_ids
</code>
field contains an
array of distinct order
<code class="leafygreen-ui-1l06pbn">
_id
</code>
's for the
<code class="leafygreen-ui-1l06pbn">
items.sku
</code>
using
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/addToSet/#mongodb-group-grp.-addToSet">
<code class="leafygreen-ui-1l06pbn">
$addToSet
</code>
.
</a>
</p>
</li>
</ul>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ \"_id\" : \"chocolates\", \"qty\" : 15, \"orders_ids\" : [ 2, 5, 8 ] }\n{ \"_id\" : \"oranges\", \"qty\" : 63, \"orders_ids\" : [ 4, 7, 3, 2, 9, 1, 10 ] }\n{ \"_id\" : \"carrots\", \"qty\" : 15, \"orders_ids\" : [ 6, 9 ] }\n{ \"_id\" : \"apples\", \"qty\" : 35, \"orders_ids\" : [ 9, 8, 1, 6 ] }\n{ \"_id\" : \"pears\", \"qty\" : 10, \"orders_ids\" : [ 3 ] }","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"chocolates"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">15</span>, <span class="lg-highlight-string">"orders_ids"</span> <!-- -->: <!-- -->[ <span class="lg-highlight-number">2</span>, <span class="lg-highlight-number">5</span>, <span class="lg-highlight-number">8</span> ] }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"oranges"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">63</span>, <span class="lg-highlight-string">"orders_ids"</span> <!-- -->: <!-- -->[ <span class="lg-highlight-number">4</span>, <span class="lg-highlight-number">7</span>, <span class="lg-highlight-number">3</span>, <span class="lg-highlight-number">2</span>, <span class="lg-highlight-number">9</span>, <span class="lg-highlight-number">1</span>, <span class="lg-highlight-number">10</span> ] }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"carrots"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">15</span>, <span class="lg-highlight-string">"orders_ids"</span> <!-- -->: <!-- -->[ <span class="lg-highlight-number">6</span>, <span class="lg-highlight-number">9</span> ] }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"apples"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">35</span>, <span class="lg-highlight-string">"orders_ids"</span> <!-- -->: <!-- -->[ <span class="lg-highlight-number">9</span>, <span class="lg-highlight-number">8</span>, <span class="lg-highlight-number">1</span>, <span class="lg-highlight-number">6</span> ] }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"pears"</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-string">"orders_ids"</span> <!-- -->: <!-- -->[ <span class="lg-highlight-number">3</span> ] }</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/project/#mongodb-pipeline-pipe.-project">
<code class="leafygreen-ui-1l06pbn">
$project
</code>
</a>
stage reshapes the output document to
mirror the map-reduce's output to have two fields
<code class="leafygreen-ui-1l06pbn">
_id
</code>
and
<code class="leafygreen-ui-1l06pbn">
value
</code>
. The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/project/#mongodb-pipeline-pipe.-project">
<code class="leafygreen-ui-1l06pbn">
$project
</code>
</a>
sets:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
the
<code class="leafygreen-ui-1l06pbn">
value.count
</code>
to the size of the
<code class="leafygreen-ui-1l06pbn">
orders_ids
</code>
array
using
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/size/#mongodb-expression-exp.-size">
<code class="leafygreen-ui-1l06pbn">
$size
</code>
.
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
the
<code class="leafygreen-ui-1l06pbn">
value.qty
</code>
to the
<code class="leafygreen-ui-1l06pbn">
qty
</code>
field of input document.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
the
<code class="leafygreen-ui-1l06pbn">
value.avg
</code>
to the average number of qty per order
using
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/divide/#mongodb-expression-exp.-divide">
<code class="leafygreen-ui-1l06pbn">
$divide
</code>
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/size/#mongodb-expression-exp.-size">
<code class="leafygreen-ui-1l06pbn">
$size
</code>
.
</a>
</p>
</li>
</ul>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ \"_id\" : \"apples\", \"value\" : { \"count\" : 4, \"qty\" : 35, \"avg\" : 8.75 } }\n{ \"_id\" : \"pears\", \"value\" : { \"count\" : 1, \"qty\" : 10, \"avg\" : 10 } }\n{ \"_id\" : \"chocolates\", \"value\" : { \"count\" : 3, \"qty\" : 15, \"avg\" : 5 } }\n{ \"_id\" : \"oranges\", \"value\" : { \"count\" : 7, \"qty\" : 63, \"avg\" : 9 } }\n{ \"_id\" : \"carrots\", \"value\" : { \"count\" : 2, \"qty\" : 15, \"avg\" : 7.5 } }","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"apples"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"count"</span> <!-- -->: <span class="lg-highlight-number">4</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">35</span>, <span class="lg-highlight-string">"avg"</span> <!-- -->: <span class="lg-highlight-number">8.75</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"pears"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"count"</span> <!-- -->: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-string">"avg"</span> <!-- -->: <span class="lg-highlight-number">10</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"chocolates"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"count"</span> <!-- -->: <span class="lg-highlight-number">3</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">15</span>, <span class="lg-highlight-string">"avg"</span> <!-- -->: <span class="lg-highlight-number">5</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"oranges"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"count"</span> <!-- -->: <span class="lg-highlight-number">7</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">63</span>, <span class="lg-highlight-string">"avg"</span> <!-- -->: <span class="lg-highlight-number">9</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"carrots"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"count"</span> <!-- -->: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">15</span>, <span class="lg-highlight-string">"avg"</span> <!-- -->: <span class="lg-highlight-number">7.5</span> } }</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Finally, the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/merge/#mongodb-pipeline-pipe.-merge">
<code class="leafygreen-ui-1l06pbn">
$merge
</code>
</a>
writes the output to the
collection
<code class="leafygreen-ui-1l06pbn">
agg_alternative_3
</code>
. If an existing document has the same
key
<code class="leafygreen-ui-1l06pbn">
_id
</code>
as the new result, the operation overwrites the existing
document. If there is no existing document with the same key, the
operation inserts the document.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Query the
<code class="leafygreen-ui-1l06pbn">
agg_alternative_3
</code>
collection to verify the results:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.agg_alternative_3.find().sort( { _id: 1 } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">agg_alternative_3</span>.<span class="lg-highlight-title lg-highlight-function">find</span>(<!-- -->).<span class="lg-highlight-title lg-highlight-function">sort</span>( <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">1</span> } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The operation returns the following documents:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ \"_id\" : \"apples\", \"value\" : { \"count\" : 4, \"qty\" : 35, \"avg\" : 8.75 } }\n{ \"_id\" : \"carrots\", \"value\" : { \"count\" : 2, \"qty\" : 15, \"avg\" : 7.5 } }\n{ \"_id\" : \"chocolates\", \"value\" : { \"count\" : 3, \"qty\" : 15, \"avg\" : 5 } }\n{ \"_id\" : \"oranges\", \"value\" : { \"count\" : 7, \"qty\" : 63, \"avg\" : 9 } }\n{ \"_id\" : \"pears\", \"value\" : { \"count\" : 1, \"qty\" : 10, \"avg\" : 10 } }","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"apples"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"count"</span> <!-- -->: <span class="lg-highlight-number">4</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">35</span>, <span class="lg-highlight-string">"avg"</span> <!-- -->: <span class="lg-highlight-number">8.75</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"carrots"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"count"</span> <!-- -->: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">15</span>, <span class="lg-highlight-string">"avg"</span> <!-- -->: <span class="lg-highlight-number">7.5</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"chocolates"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"count"</span> <!-- -->: <span class="lg-highlight-number">3</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">15</span>, <span class="lg-highlight-string">"avg"</span> <!-- -->: <span class="lg-highlight-number">5</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"oranges"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"count"</span> <!-- -->: <span class="lg-highlight-number">7</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">63</span>, <span class="lg-highlight-string">"avg"</span> <!-- -->: <span class="lg-highlight-number">9</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"pears"</span>, <span class="lg-highlight-string">"value"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"count"</span> <!-- -->: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-string">"qty"</span> <!-- -->: <span class="lg-highlight-number">10</span>, <span class="lg-highlight-string">"avg"</span> <!-- -->: <span class="lg-highlight-number">10</span> } }</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</li>
</ol>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
For an alternative that uses custom aggregation expressions, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/map-reduce-to-aggregation-pipeline/#std-label-mr-to-agg-examples2">
Map-Reduce to Aggregation Pipeline Translation Examples
<!-- -->
.
</a>
</p>
</div>
</div>
</section>
</section>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Output
<a class="headerlink leafygreen-ui-1kepx47" href="#output" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="output">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The output of the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-db.collection.mapReduce" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
db.collection.mapReduce()
</code>
</span>
</a>
method is
identical to that of the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/mapReduce/#mongodb-dbcommand-dbcmd.mapReduce">
<code class="leafygreen-ui-1l06pbn">
mapReduce
</code>
</a>
command. See the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/mapReduce/#std-label-mapReduce-output">
Output
</a>
section of the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/mapReduce/#mongodb-dbcommand-dbcmd.mapReduce">
<code class="leafygreen-ui-1l06pbn">
mapReduce
</code>
</a>
command for information on the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-db.collection.mapReduce" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
db.collection.mapReduce()
</code>
</span>
</a>
output.
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Restrictions
<a class="headerlink leafygreen-ui-1kepx47" href="#restrictions" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="restrictions">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-db.collection.mapReduce" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
db.collection.mapReduce()
</code>
</span>
</a>
no longer supports
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/read-concern/#std-label-afterClusterTime">
afterClusterTime
</a>
. As such,
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-db.collection.mapReduce" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
db.collection.mapReduce()
</code>
</span>
</a>
cannot be associatd with
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/read-isolation-consistency-recency/#std-label-causal-consistency">
causally consistent sessions
<!-- -->
.
</a>
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Additional Information
<a class="headerlink leafygreen-ui-1kepx47" href="#additional-information" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="additional-information">
</div>
</a>
</h2>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/troubleshoot-map-function/#std-label-troubleshoot-map-function">
Troubleshoot the Map Function
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/troubleshoot-reduce-function/#std-label-troubleshoot-reduce-function">
Troubleshoot the Reduce Function
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/mapReduce/#mongodb-dbcommand-dbcmd.mapReduce">
<code class="leafygreen-ui-1l06pbn">
mapReduce
</code>
</a>
command
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/aggregation/#std-label-aggregation">
Aggregation Operations
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/map-reduce/#std-label-map-reduce">
Map-Reduce
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/perform-incremental-map-reduce/#std-label-incremental-map-reduce">
Perform Incremental Map-Reduce
</a>
</p>
</li>
</ul>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/command/revokeRolesFromRole/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
revokeRolesFromRole
<a class="headerlink leafygreen-ui-1kepx47" href="#revokerolesfromrole" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="revokerolesfromrole">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#definition" target="_self">
<span>
Definition
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#compatibility" target="_self">
<span>
Compatibility
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#syntax" target="_self">
<span>
Syntax
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#command-fields" target="_self">
<span>
Command Fields
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#required-access" target="_self">
<span>
Required Access
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#example" target="_self">
<span>
Example
</span>
</a>
</li>
</ul>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Definition
<a class="headerlink leafygreen-ui-1kepx47" href="#definition" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="definition">
</div>
</a>
</h2>
<dl class="dbcommand">
<dt>
<code class="leafygreen-ui-1l06pbn">
revokeRolesFromRole
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-dbcommand-dbcmd.revokeRolesFromRole" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-dbcommand-dbcmd.revokeRolesFromRole">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Removes the specified inherited roles from a role.
</p>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
In
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#std-program-mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
, this command can also be run through the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.revokeRolesFromRole/#mongodb-method-db.revokeRolesFromRole">
<code class="leafygreen-ui-1l06pbn">
db.revokeRolesFromRole()
</code>
</a>
helper method
<!-- -->
.
</p>
<p class="leafygreen-ui-1kp3ins">
Helper methods are convenient for
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#std-program-mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
users, but they may not
return the same level of information as database commands. In cases where
the convenience is not needed or the additional return fields are required,
use the database command.
</p>
</div>
</div>
</dd>
</dl>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Compatibility
<a class="headerlink leafygreen-ui-1kepx47" href="#compatibility" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="compatibility">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
This command is available in deployments hosted in the following environments:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas?tck=docs_server" target="_self">
<span>
MongoDB Atlas
</span>
</a>
: The fully
managed service for MongoDB deployments in the cloud
</p>
</li>
</ul>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
This command is not supported in M0, M2, and M5 clusters.
For more information, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/unsupported-commands/" target="_self">
<span>
Unsupported Commands
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/install-enterprise/#std-label-install-mdb-enterprise">
MongoDB Enterprise
</a>
: The
subscription-based, self-managed version of MongoDB
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/install-community/#std-label-install-mdb-community-edition">
MongoDB Community
</a>
: The
source-available, free-to-use, and self-managed version of MongoDB
</p>
</li>
</ul>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Syntax
<a class="headerlink leafygreen-ui-1kepx47" href="#syntax" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="syntax">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The command has the following syntax:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.runCommand(\n {\n revokeRolesFromRole: \"<role>\",\n roles: [\n { role: \"<role>\", db: \"<database>\" } | \"<role>\",\n ...\n ],\n writeConcern: { <write> },\n comment: <any>\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">runCommand</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">revokeRolesFromRole</span>: <span class="lg-highlight-string">"<role>"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">roles</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">role</span>: <span class="lg-highlight-string">"<role>"</span>, <span class="lg-highlight-attr">db</span>: <span class="lg-highlight-string">"<database>"</span> } <!-- -->| <span class="lg-highlight-string">"<role>"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">writeConcern</span>: <!-- -->{ <!-- --><write concern> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> comment: <any></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Command Fields
<a class="headerlink leafygreen-ui-1kepx47" href="#command-fields" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="command-fields">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The command has the following fields:
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:20%"/>
<col style="width:20%"/>
<col style="width:80%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Field
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Type
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
revokeRolesFromRole
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
string
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
The role from which to remove inherited roles.
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
roles
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
array
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
The inherited roles to remove.
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
writeConcern
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
document
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Optional. The level of
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/write-concern/#std-label-write-concern">
write concern
</a>
for the
operation. See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/write-concern/#std-label-wc-specs">
Write Concern Specification
<!-- -->
.
</a>
</p>
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
comment
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
any
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Optional. A user-provided comment to attach to this command. Once set, this
comment appears alongside records of this command in the following
locations:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/log-messages/#std-label-log-messages-ref">
mongod log messages
</a>
, in the
<code class="leafygreen-ui-1l06pbn">
attr.command.cursor.comment
</code>
field.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/database-profiler/#std-label-profiler">
Database profiler
</a>
output, in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/database-profiler/#mongodb-data-system.profile.command">
<code class="leafygreen-ui-1l06pbn">
command.comment
</code>
</a>
field.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/currentOp/#mongodb-dbcommand-dbcmd.currentOp">
<code class="leafygreen-ui-1l06pbn">
currentOp
</code>
</a>
output, in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/currentOp/#mongodb-data-currentOp.command">
<code class="leafygreen-ui-1l06pbn">
command.comment
</code>
</a>
field.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
A comment can be any valid
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/bson-types/#std-label-bson-types">
BSON type
</a>
(string, integer, object, array, etc).
</p>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<p class="leafygreen-ui-1kp3ins">
In the
<code class="leafygreen-ui-1l06pbn">
roles
</code>
field, you can specify both
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/built-in-roles/#std-label-built-in-roles">
built-in roles
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/security-user-defined-roles/#std-label-user-defined-roles">
user-defined
roles
<!-- -->
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
To specify a role that exists in the same database where
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.revokeRolesFromRole" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
revokeRolesFromRole
</code>
</span>
</a>
runs, you can either specify the role with the name of
the role:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"\"readWrite\"","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string">"readWrite"</span></td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Or you can specify the role with a document, as in:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ role: \"<role>\", db: \"<database>\" }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-attr">role</span>: <span class="lg-highlight-string">"<role>"</span>, <span class="lg-highlight-attr">db</span>: <span class="lg-highlight-string">"<database>"</span> }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To specify a role that exists in a different database, specify the role
with a document.
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Required Access
<a class="headerlink leafygreen-ui-1kepx47" href="#required-access" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="required-access">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
You must have the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/privilege-actions/#mongodb-authaction-revokeRole">
<code class="leafygreen-ui-1l06pbn">
revokeRole
</code>
</a>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/privilege-actions/#std-label-security-user-actions">
action
</a>
on a database to revoke a role on that database.
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Example
<a class="headerlink leafygreen-ui-1kepx47" href="#example" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="example">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
purchaseAgents
</code>
role in the
<code class="leafygreen-ui-1l06pbn">
emea
</code>
database inherits privileges
from several other roles, as listed in the
<code class="leafygreen-ui-1l06pbn">
roles
</code>
array:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n \"_id\" : \"emea.purchaseAgents\",\n \"role\" : \"purchaseAgents\",\n \"db\" : \"emea\",\n \"privileges\" : [],\n \"roles\" : [\n {\n \"role\" : \"readOrdersCollection\",\n \"db\" : \"emea\"\n },\n {\n \"role\" : \"readAccountsCollection\",\n \"db\" : \"emea\"\n },\n {\n \"role\" : \"writeOrdersCollection\",\n \"db\" : \"emea\"\n }\n ]\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"emea.purchaseAgents"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"role"</span> <!-- -->: <span class="lg-highlight-string">"purchaseAgents"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"db"</span> <!-- -->: <span class="lg-highlight-string">"emea"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"privileges"</span> <!-- -->: <!-- -->[<!-- -->]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"roles"</span> <!-- -->: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"role"</span> <!-- -->: <span class="lg-highlight-string">"readOrdersCollection"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"db"</span> <!-- -->: <span class="lg-highlight-string">"emea"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"role"</span> <!-- -->: <span class="lg-highlight-string">"readAccountsCollection"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"db"</span> <!-- -->: <span class="lg-highlight-string">"emea"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"role"</span> <!-- -->: <span class="lg-highlight-string">"writeOrdersCollection"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"db"</span> <!-- -->: <span class="lg-highlight-string">"emea"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The following
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.revokeRolesFromRole" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
revokeRolesFromRole
</code>
</span>
</a>
operation on the
<code class="leafygreen-ui-1l06pbn">
emea
</code>
database removes two roles from the
<code class="leafygreen-ui-1l06pbn">
purchaseAgents
</code>
role:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"use emea\ndb.runCommand( { revokeRolesFromRole: \"purchaseAgents\",\n roles: [\n \"writeOrdersCollection\",\n \"readOrdersCollection\"\n ],\n writeConcern: { w: \"majority\" , wtimeout: 5000 }\n } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">use emea</td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">runCommand</span>( <!-- -->{ <span class="lg-highlight-attr">revokeRolesFromRole</span>: <span class="lg-highlight-string">"purchaseAgents"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">roles</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"writeOrdersCollection"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"readOrdersCollection"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">writeConcern</span>: <!-- -->{ <span class="lg-highlight-attr">w</span>: <span class="lg-highlight-string">"majority"</span> <!-- -->, <span class="lg-highlight-attr">wtimeout</span>: <span class="lg-highlight-number">5000</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
purchaseAgents
</code>
role now contains just one role:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n \"_id\" : \"emea.purchaseAgents\",\n \"role\" : \"purchaseAgents\",\n \"db\" : \"emea\",\n \"privileges\" : [],\n \"roles\" : [\n {\n \"role\" : \"readAccountsCollection\",\n \"db\" : \"emea\"\n }\n ]\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"emea.purchaseAgents"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"role"</span> <!-- -->: <span class="lg-highlight-string">"purchaseAgents"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"db"</span> <!-- -->: <span class="lg-highlight-string">"emea"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"privileges"</span> <!-- -->: <!-- -->[<!-- -->]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"roles"</span> <!-- -->: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"role"</span> <!-- -->: <span class="lg-highlight-string">"readAccountsCollection"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"db"</span> <!-- -->: <span class="lg-highlight-string">"emea"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</section>
</section>
|
https://www.mongodb.com/docs/manual/core/schema-validation/specify-validation-level/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Specify Validation Level for Existing Documents
<a class="headerlink leafygreen-ui-1kepx47" href="#specify-validation-level-for-existing-documents" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="specify-validation-level-for-existing-documents">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#context" target="_self">
<span>
Context
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#prerequisite" target="_self">
<span>
Prerequisite
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#steps--use-strict-validation" target="_self">
<span>
Steps: Use
<code class="css-1kekw28 e1wawog0">
strict
</code>
Validation
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#steps--use-moderate-validation" target="_self">
<span>
Steps: Use
<code class="css-1kekw28 e1wawog0">
moderate
</code>
Validation
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#learn-more" target="_self">
<span>
Learn More
</span>
</a>
</li>
</ul>
</div>
<p class="leafygreen-ui-1kp3ins">
For documents that already exist in your collection prior to adding
validation, you can specify how MongoDB applies validation rules to
these documents.
</p>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Context
<a class="headerlink leafygreen-ui-1kepx47" href="#context" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="context">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
Your schema's
<code class="leafygreen-ui-1l06pbn">
validationLevel
</code>
determines the documents for which
MongoDB applies validation rules:
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:10%"/>
<col style="width:20%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Validation Level
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Behavior
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-xejatx" role="rowheader">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
strict
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
(
<em>
Default
</em>
) MongoDB applies the same validation rules to all
document inserts and updates.
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-xejatx" role="rowheader">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
moderate
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
MongoDB applies the same validation rules to document inserts
and updates to existing valid documents that match the
validation rules. Updates to existing documents in the
collection that don't match the validation rules aren't required
to pass validation.
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Prerequisite
<a class="headerlink leafygreen-ui-1kepx47" href="#prerequisite" title="Permalink to this heading">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="prerequisite">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The examples on this page use a
<code class="leafygreen-ui-1l06pbn">
contacts
</code>
collection with these
documents:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.contacts.insertMany([\n { \"_id\": 1, \"name\": \"Anne\", \"phone\": \"+1 555 123 456\", \"city\": \"London\", \"status\": \"Complete\" },\n { \"_id\": 2, \"name\": \"Ivan\", \"city\": \"Vancouver\" }\n])","programmingLanguage":"JSON"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light json leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.contacts.insertMany(<span class="lg-highlight-punctuation">[</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-punctuation">{</span> <span class="lg-highlight-attr">"_id"</span><span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-number">1</span><span class="lg-highlight-punctuation">,</span> <span class="lg-highlight-attr">"name"</span><span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"Anne"</span><span class="lg-highlight-punctuation">,</span> <span class="lg-highlight-attr">"phone"</span><span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"+1 555 123 456"</span><span class="lg-highlight-punctuation">,</span> <span class="lg-highlight-attr">"city"</span><span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"London"</span><span class="lg-highlight-punctuation">,</span> <span class="lg-highlight-attr">"status"</span><span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"Complete"</span> <span class="lg-highlight-punctuation">}</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-punctuation">{</span> <span class="lg-highlight-attr">"_id"</span><span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-number">2</span><span class="lg-highlight-punctuation">,</span> <span class="lg-highlight-attr">"name"</span><span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"Ivan"</span><span class="lg-highlight-punctuation">,</span> <span class="lg-highlight-attr">"city"</span><span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"Vancouver"</span> <span class="lg-highlight-punctuation">}</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-punctuation">]</span>)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
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</div>
</div>
</div>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Steps: Use
<code class="leafygreen-ui-1l06pbn">
strict
</code>
Validation
<a class="headerlink leafygreen-ui-1kepx47" href="#steps--use-strict-validation" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="steps--use-strict-validation">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The following example adds a
<code class="leafygreen-ui-1l06pbn">
strict
</code>
validation to the
<code class="leafygreen-ui-1l06pbn">
contacts
</code>
collection and shows the results when attempting to update invalid
documents.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"HowTo","steps":[{"@type":"HowToStep","text":"Add a validator to the contacts collection with strict\nvalidationLevel:Because the validationLevel is strict, when any document\nis updated, MongoDB checks that document for validation.","name":"Specify validation rules with strict validation level."},{"@type":"HowToStep","text":"The following update commands modify both documents in the contacts\ncollection such that neither of the documents are consistent with the\nvalidation rule which requires name to be a string:","name":"Test the validation."},{"@type":"HowToStep","text":"Both update operations fail. MongoDB returns the following output\nfor each operation:","name":"Observe results."}],"name":"Steps: Use strict Validation","image":"https://webimages.mongodb.com/_com_assets/cms/kuyj2focmkbxv7gh3-stacked_default_slate_blue.svg?auto=format%252Ccompress"}
</script>
<div class="css-qum8nr eccljxs0">
<div class="css-vq8pj5 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-18jxsvu e1ckbxcu2">
1
</div>
</div>
<div class="css-clrhqf">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Specify validation rules with
<code class="leafygreen-ui-1l06pbn">
strict
</code>
validation level.
<a class="headerlink leafygreen-ui-1kepx47" href="#specify-validation-rules-with-strict-validation-level." title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="specify-validation-rules-with-strict-validation-level.">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Add a validator to the
<code class="leafygreen-ui-1l06pbn">
contacts
</code>
collection with
<code class="leafygreen-ui-1l06pbn">
strict
</code>
<code class="leafygreen-ui-1l06pbn">
validationLevel
</code>
:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.runCommand( {\n collMod: \"contacts\",\n validator: { $jsonSchema: {\n bsonType: \"object\",\n required: [ \"phone\", \"name\" ],\n properties: {\n phone: {\n bsonType: \"string\",\n description: \"phone must be a string and is required\"\n },\n name: {\n bsonType: \"string\",\n description: \"name must be a string and is required\"\n }\n }\n } },\n validationLevel: \"strict\"\n} )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">runCommand</span>( <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">collMod</span>: <span class="lg-highlight-string">"contacts"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">validator</span>: <!-- -->{ <span class="lg-highlight-attr">$jsonSchema</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">bsonType</span>: <span class="lg-highlight-string">"object"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">required</span>: <!-- -->[ <span class="lg-highlight-string">"phone"</span>, <span class="lg-highlight-string">"name"</span> ]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">properties</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">phone</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">bsonType</span>: <span class="lg-highlight-string">"string"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">description</span>: <span class="lg-highlight-string">"phone must be a string and is required"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">name</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">bsonType</span>: <span class="lg-highlight-string">"string"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">description</span>: <span class="lg-highlight-string">"name must be a string and is required"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> } }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">validationLevel</span>: <span class="lg-highlight-string">"strict"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">} )</td></tr></tbody></table></code></pre>
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</svg>
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</div>
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<p class="leafygreen-ui-1kp3ins">
Because the
<code class="leafygreen-ui-1l06pbn">
validationLevel
</code>
is
<code class="leafygreen-ui-1l06pbn">
strict
</code>
, when any document
is updated, MongoDB checks that document for validation.
</p>
</section>
</div>
</div>
<div class="css-vq8pj5 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-18jxsvu e1ckbxcu2">
2
</div>
</div>
<div class="css-clrhqf">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Test the validation.
<a class="headerlink leafygreen-ui-1kepx47" href="#test-the-validation." title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="test-the-validation.">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The following update commands modify both documents in the
<code class="leafygreen-ui-1l06pbn">
contacts
</code>
collection such that neither of the documents are consistent with the
validation rule which requires
<code class="leafygreen-ui-1l06pbn">
name
</code>
to be a string:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.contacts.updateOne(\n { _id: 1 },\n { $set: { name: 10 } }\n)\n\ndb.contacts.updateOne(\n { _id: 2 },\n { $set: { name: 20 } }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">contacts</span>.<span class="lg-highlight-title lg-highlight-function">updateOne</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">1</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">$set</span>: <!-- -->{ <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-number">10</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">contacts</span>.<span class="lg-highlight-title lg-highlight-function">updateOne</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">2</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">$set</span>: <!-- -->{ <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-number">20</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
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<div class="css-18fui5z e1ckbxcu0">
<div class="css-18jxsvu e1ckbxcu2">
3
</div>
</div>
<div class="css-clrhqf">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Observe results.
<a class="headerlink leafygreen-ui-1kepx47" href="#observe-results." title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
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<div class="css-1btu0w3 evvkmar0" id="observe-results.">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Both update operations fail. MongoDB returns the following output
for each operation:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":" MongoServerError: Document failed validation\n Additional information: {\n failingDocumentId: <id>,\n details: {\n operatorName: '$jsonSchema',\n schemaRulesNotSatisfied: [\n {\n operatorName: 'properties',\n propertiesNotSatisfied: [\n {\n propertyName: 'name',\n description: 'name must be a string and is required',\n details: [\n {\n operatorName: 'bsonType',\n specifiedAs: { bsonType: 'string' },\n reason: 'type did not match',\n consideredValue: <value>,\n consideredType: 'int'\n }\n ]\n }\n ]\n },\n {\n operatorName: 'required',\n specifiedAs: { required: [ 'phone', 'name' ] },\n missingProperties: [ 'phone' ]\n }\n ]\n }\n }","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-class">MongoServerError</span>: <span class="lg-highlight-title lg-highlight-class">Document</span> failed validation</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-class">Additional</span> <span class="lg-highlight-attr">information</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">failingDocumentId</span>: <<!-- -->id<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">details</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">operatorName</span>: <span class="lg-highlight-string">'$jsonSchema'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">schemaRulesNotSatisfied</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">operatorName</span>: <span class="lg-highlight-string">'properties'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">propertiesNotSatisfied</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">propertyName</span>: <span class="lg-highlight-string">'name'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">description</span>: <span class="lg-highlight-string">'name must be a string and is required'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">details</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">operatorName</span>: <span class="lg-highlight-string">'bsonType'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">specifiedAs</span>: <!-- -->{ <span class="lg-highlight-attr">bsonType</span>: <span class="lg-highlight-string">'string'</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">reason</span>: <span class="lg-highlight-string">'type did not match'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">consideredValue</span>: <<!-- -->value<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">consideredType</span>: <span class="lg-highlight-string">'int'</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">operatorName</span>: <span class="lg-highlight-string">'required'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">specifiedAs</span>: <!-- -->{ <span class="lg-highlight-attr">required</span>: <!-- -->[ <span class="lg-highlight-string">'phone'</span>, <span class="lg-highlight-string">'name'</span> ] }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">missingProperties</span>: <!-- -->[ <span class="lg-highlight-string">'phone'</span> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</section>
</div>
</div>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Steps: Use
<code class="leafygreen-ui-1l06pbn">
moderate
</code>
Validation
<a class="headerlink leafygreen-ui-1kepx47" href="#steps--use-moderate-validation" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
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</svg>
<div class="css-1btu0w3 evvkmar0" id="steps--use-moderate-validation">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The following example adds a
<code class="leafygreen-ui-1l06pbn">
moderate
</code>
validation to the
<code class="leafygreen-ui-1l06pbn">
contacts
</code>
collection and shows the results when attempting to update invalid
documents.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"HowTo","steps":[{"@type":"HowToStep","text":"Add a validator to the contacts collection with moderate\nvalidationLevel:Because the validationLevel is moderate:If you update the document with _id: 1, MongoDB applies the\nnew validation rules because the existing document meets the\nvalidation requirements.If you update the document with _id: 2, MongoDB does not apply the\nnew validation rules because the existing document does not meet the\nvalidation requirements.","name":"Specify validation rules with moderate validation level."},{"@type":"HowToStep","text":"The following update commands modify both documents in the contacts\ncollection such that neither of the documents are consistent with the\nvalidation rule which requires name to be a string:","name":"Test the validation."},{"@type":"HowToStep","text":"MongoDB returns the following output for each operation:The output shows:The update fails for the document with _id: 1. This document\nmet the initial validation requirements, and MongoDB applies\nvalidation rules to this document.The update succeeds for the document with _id: 2. This\ndocument did not meet the initial validation requirements, and\nMongoDB does not apply validation rules to this document.","name":"Observe results."}],"name":"Steps: Use moderate Validation","image":"https://webimages.mongodb.com/_com_assets/cms/kuyj2focmkbxv7gh3-stacked_default_slate_blue.svg?auto=format%252Ccompress"}
</script>
<div class="css-qum8nr eccljxs0">
<div class="css-vq8pj5 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-18jxsvu e1ckbxcu2">
1
</div>
</div>
<div class="css-clrhqf">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Specify validation rules with
<code class="leafygreen-ui-1l06pbn">
moderate
</code>
validation level.
<a class="headerlink leafygreen-ui-1kepx47" href="#specify-validation-rules-with-moderate-validation-level." title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="specify-validation-rules-with-moderate-validation-level.">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Add a validator to the
<code class="leafygreen-ui-1l06pbn">
contacts
</code>
collection with
<code class="leafygreen-ui-1l06pbn">
moderate
</code>
<code class="leafygreen-ui-1l06pbn">
validationLevel
</code>
:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.runCommand( {\n collMod: \"contacts\",\n validator: { $jsonSchema: {\n bsonType: \"object\",\n required: [ \"phone\", \"name\" ],\n properties: {\n phone: {\n bsonType: \"string\",\n description: \"phone must be a string and is required\"\n },\n name: {\n bsonType: \"string\",\n description: \"name must be a string and is required\"\n }\n }\n } },\n validationLevel: \"moderate\"\n} )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">runCommand</span>( <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">collMod</span>: <span class="lg-highlight-string">"contacts"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">validator</span>: <!-- -->{ <span class="lg-highlight-attr">$jsonSchema</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">bsonType</span>: <span class="lg-highlight-string">"object"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">required</span>: <!-- -->[ <span class="lg-highlight-string">"phone"</span>, <span class="lg-highlight-string">"name"</span> ]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">properties</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">phone</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">bsonType</span>: <span class="lg-highlight-string">"string"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">description</span>: <span class="lg-highlight-string">"phone must be a string and is required"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">name</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">bsonType</span>: <span class="lg-highlight-string">"string"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">description</span>: <span class="lg-highlight-string">"name must be a string and is required"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> } }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">validationLevel</span>: <span class="lg-highlight-string">"moderate"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">} )</td></tr></tbody></table></code></pre>
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</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Because the
<code class="leafygreen-ui-1l06pbn">
validationLevel
</code>
is
<code class="leafygreen-ui-1l06pbn">
moderate
</code>
:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
If you update the document with
<code class="leafygreen-ui-1l06pbn">
_id: 1
</code>
, MongoDB applies the
new validation rules because the existing document meets the
validation requirements.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
If you update the document with
<code class="leafygreen-ui-1l06pbn">
_id: 2
</code>
, MongoDB does not apply the
new validation rules because the existing document does not meet the
validation requirements.
</p>
</li>
</ul>
</section>
</div>
</div>
<div class="css-vq8pj5 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-18jxsvu e1ckbxcu2">
2
</div>
</div>
<div class="css-clrhqf">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Test the validation.
<a class="headerlink leafygreen-ui-1kepx47" href="#test-the-validation.-1" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="test-the-validation.-1">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The following update commands modify both documents in the
<code class="leafygreen-ui-1l06pbn">
contacts
</code>
collection such that neither of the documents are consistent with the
validation rule which requires
<code class="leafygreen-ui-1l06pbn">
name
</code>
to be a string:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.contacts.updateOne(\n { _id: 1 },\n { $set: { name: 10 } }\n)\n\ndb.contacts.updateOne(\n { _id: 2 },\n { $set: { name: 20 } }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">contacts</span>.<span class="lg-highlight-title lg-highlight-function">updateOne</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">1</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">$set</span>: <!-- -->{ <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-number">10</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">contacts</span>.<span class="lg-highlight-title lg-highlight-function">updateOne</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">2</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">$set</span>: <!-- -->{ <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-number">20</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</button>
</div>
</div>
</div>
</div>
</section>
</div>
</div>
<div class="css-vq8pj5 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-18jxsvu e1ckbxcu2">
3
</div>
</div>
<div class="css-clrhqf">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Observe results.
<a class="headerlink leafygreen-ui-1kepx47" href="#observe-results.-1" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="observe-results.-1">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
MongoDB returns the following output for each operation:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"// _id: 1\n\nMongoServerError: Document failed validation\nAdditional information: {\n failingDocumentId: 1,\n details: {\n operatorName: '$jsonSchema',\n schemaRulesNotSatisfied: [\n {\n operatorName: 'properties',\n propertiesNotSatisfied: [\n {\n propertyName: 'name',\n description: 'name must be a string and is required',\n details: [\n {\n operatorName: 'bsonType',\n specifiedAs: { bsonType: 'string' },\n reason: 'type did not match',\n consideredValue: 10,\n consideredType: 'int'\n }\n ]\n }\n ]\n }\n ]\n }\n}\n\n// _id: 2\n\n{\n acknowledged: true,\n insertedId: null,\n matchedCount: 1,\n modifiedCount: 0,\n upsertedCount: 0\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-comment">// _id: 1</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">MongoServerError</span>: <span class="lg-highlight-title lg-highlight-class">Document</span> failed validation</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">Additional</span> <span class="lg-highlight-attr">information</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">failingDocumentId</span>: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">details</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">operatorName</span>: <span class="lg-highlight-string">'$jsonSchema'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">schemaRulesNotSatisfied</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">operatorName</span>: <span class="lg-highlight-string">'properties'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">propertiesNotSatisfied</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">propertyName</span>: <span class="lg-highlight-string">'name'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">description</span>: <span class="lg-highlight-string">'name must be a string and is required'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">details</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">operatorName</span>: <span class="lg-highlight-string">'bsonType'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">specifiedAs</span>: <!-- -->{ <span class="lg-highlight-attr">bsonType</span>: <span class="lg-highlight-string">'string'</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">reason</span>: <span class="lg-highlight-string">'type did not match'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">consideredValue</span>: <span class="lg-highlight-number">10</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">consideredType</span>: <span class="lg-highlight-string">'int'</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-comment">// _id: 2</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">acknowledged</span>: <span class="lg-highlight-literal">true</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">insertedId</span>: <span class="lg-highlight-literal">null</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">matchedCount</span>: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">modifiedCount</span>: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">upsertedCount</span>: <span class="lg-highlight-number">0</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The output shows:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The update fails for the document with
<code class="leafygreen-ui-1l06pbn">
_id: 1
</code>
. This document
met the initial validation requirements, and MongoDB applies
validation rules to this document.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The update succeeds for the document with
<code class="leafygreen-ui-1l06pbn">
_id: 2
</code>
. This
document did not meet the initial validation requirements, and
MongoDB does not apply validation rules to this document.
</p>
</li>
</ul>
</section>
</div>
</div>
</div>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
The error output is intended for human consumption. It may change in
the future and should not be relied upon in scripts.
</p>
</div>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Learn More
<a class="headerlink leafygreen-ui-1kepx47" href="#learn-more" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="learn-more">
</div>
</a>
</h2>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/schema-validation/handle-invalid-documents/#std-label-schema-validation-handle-invalid-docs">
Choose How to Handle Invalid Documents
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/schema-validation/update-schema-validation/#std-label-schema-update-validation">
Modify Schema Validation
</a>
</p>
</li>
</ul>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/command/rolesInfo/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
rolesInfo
<a class="headerlink leafygreen-ui-1kepx47" href="#rolesinfo" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="rolesinfo">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#definition" target="_self">
<span>
Definition
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#compatibility" target="_self">
<span>
Compatibility
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#syntax" target="_self">
<span>
Syntax
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#command-fields" target="_self">
<span>
Command Fields
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#behavior" target="_self">
<span>
Behavior
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#return-information-for-a-single-role" target="_self">
<span>
Return Information for a Single Role
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#return-information-for-multiple-roles" target="_self">
<span>
Return Information for Multiple Roles
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#return-information-for-all-roles-in-the-database" target="_self">
<span>
Return Information for All Roles in the Database
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#required-access" target="_self">
<span>
Required Access
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#output" target="_self">
<span>
Output
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#examples" target="_self">
<span>
Examples
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#view-information-for-a-single-role" target="_self">
<span>
View Information for a Single Role
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#view-information-for-multiple-roles" target="_self">
<span>
View Information for Multiple Roles
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#view-all-user-defined-roles-for-a-database" target="_self">
<span>
View All User-Defined Roles for a Database
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#view-all-user-defined-and-built-in-roles-for-a-database" target="_self">
<span>
View All User-Defined and Built-In Roles for a Database
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#view-authentication-restrictions-for-roles" target="_self">
<span>
View Authentication Restrictions for Roles
</span>
</a>
</li>
</ul>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Definition
<a class="headerlink leafygreen-ui-1kepx47" href="#definition" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="definition">
</div>
</a>
</h2>
<dl class="dbcommand">
<dt>
<code class="leafygreen-ui-1l06pbn">
rolesInfo
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-dbcommand-dbcmd.rolesInfo" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-dbcommand-dbcmd.rolesInfo">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Returns inheritance and privilege information for specified roles,
including both
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/security-user-defined-roles/#std-label-user-defined-roles">
user-defined roles
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/built-in-roles/#std-label-built-in-roles">
built-in roles
<!-- -->
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.rolesInfo" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
rolesInfo
</code>
</span>
</a>
command can also retrieve all roles
scoped to a database.
</p>
</dd>
</dl>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Compatibility
<a class="headerlink leafygreen-ui-1kepx47" href="#compatibility" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="compatibility">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
This command is available in deployments hosted in the following environments:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas?tck=docs_server" target="_self">
<span>
MongoDB Atlas
</span>
</a>
: The fully
managed service for MongoDB deployments in the cloud
</p>
</li>
</ul>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
This command is supported in all MongoDB Atlas clusters.
For information on Atlas support for all commands, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/unsupported-commands/" target="_self">
<span>
Unsupported Commands
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/install-enterprise/#std-label-install-mdb-enterprise">
MongoDB Enterprise
</a>
: The
subscription-based, self-managed version of MongoDB
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/install-community/#std-label-install-mdb-community-edition">
MongoDB Community
</a>
: The
source-available, free-to-use, and self-managed version of MongoDB
</p>
</li>
</ul>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Syntax
<a class="headerlink leafygreen-ui-1kepx47" href="#syntax" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="syntax">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The command has the following syntax:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.runCommand(\n {\n rolesInfo: { role: <name>, db: <db> },\n showAuthenticationRestrictions: <boolean>,\n showBuiltinRoles: <boolean>,\n showPrivileges: <boolean>,\n comment: <any>\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">runCommand</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">rolesInfo</span>: <!-- -->{ <span class="lg-highlight-attr">role</span>: <<!-- -->name<!-- -->><!-- -->,<!-- --> <span class="lg-highlight-attr">db</span>: <<!-- -->db<!-- -->> <!-- -->}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">showAuthenticationRestrictions</span>: <<span class="lg-highlight-title lg-highlight-class">Boolean</span>><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">showBuiltinRoles</span>: <<span class="lg-highlight-title lg-highlight-class">Boolean</span>><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">showPrivileges</span>: <<span class="lg-highlight-title lg-highlight-class">Boolean</span>><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">comment</span>: <<!-- -->any<!-- -->></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->}</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Command Fields
<a class="headerlink leafygreen-ui-1kepx47" href="#command-fields" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="command-fields">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The command takes the following fields:
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:20%"/>
<col style="width:20%"/>
<col style="width:80%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Field
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Type
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
rolesInfo
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
string, document, array, or integer
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
The role(s) to return information about. For the syntax for specifying
roles, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-rolesinfo-behavior" target="_self">
<span>
Behavior
<!-- -->
.
</span>
</a>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
showAuthenticationRestrictions
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
boolean
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Optional. Set this field to
<code class="leafygreen-ui-1l06pbn">
true
</code>
to include
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/createRole/#std-label-create-role-auth-restrictions">
authentication
restrictions
</a>
in the output.
Authentication restrictions indicate the IP addresses that users with
this role can connect to and from.
</p>
<p class="leafygreen-ui-1kp3ins">
By default, this field is
<code class="leafygreen-ui-1l06pbn">
false
</code>
, meaning that the
<code class="leafygreen-ui-1l06pbn">
rolesInfo
</code>
output does not include authentication restrictions.
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
showBuiltinRoles
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
boolean
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Optional. When the
<code class="leafygreen-ui-1l06pbn">
rolesInfo
</code>
field is set to
<code class="leafygreen-ui-1l06pbn">
1
</code>
, set
<code class="leafygreen-ui-1l06pbn">
showBuiltinRoles
</code>
to
<code class="leafygreen-ui-1l06pbn">
true
</code>
to include
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/built-in-roles/#std-label-built-in-roles">
built-in roles
</a>
in the output. By default, this field is set to
<code class="leafygreen-ui-1l06pbn">
false
</code>
, and the output for
<code class="leafygreen-ui-1l06pbn">
rolesInfo: 1
</code>
displays only
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/security-user-defined-roles/#std-label-user-defined-roles">
user-defined roles
<!-- -->
.
</a>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
showPrivileges
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
boolean
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Optional. Set the field to
<code class="leafygreen-ui-1l06pbn">
true
</code>
to show role privileges,
including both privileges inherited from other roles and
privileges defined directly. By default, the command returns only
the roles from which this role inherits privileges and does not
return specific privileges.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
comment
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
any
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Optional. A user-provided comment to attach to this command. Once set, this
comment appears alongside records of this command in the following
locations:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/log-messages/#std-label-log-messages-ref">
mongod log messages
</a>
, in the
<code class="leafygreen-ui-1l06pbn">
attr.command.cursor.comment
</code>
field.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/database-profiler/#std-label-profiler">
Database profiler
</a>
output, in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/database-profiler/#mongodb-data-system.profile.command">
<code class="leafygreen-ui-1l06pbn">
command.comment
</code>
</a>
field.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/currentOp/#mongodb-dbcommand-dbcmd.currentOp">
<code class="leafygreen-ui-1l06pbn">
currentOp
</code>
</a>
output, in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/currentOp/#mongodb-data-currentOp.command">
<code class="leafygreen-ui-1l06pbn">
command.comment
</code>
</a>
field.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
A comment can be any valid
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/bson-types/#std-label-bson-types">
BSON type
</a>
(string, integer, object, array, etc).
</p>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-rolesinfo-behavior">
</span>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Behavior
<a class="headerlink leafygreen-ui-1kepx47" href="#behavior" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="behavior">
</div>
</a>
</h2>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Return Information for a Single Role
<a class="headerlink leafygreen-ui-1kepx47" href="#return-information-for-a-single-role" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="return-information-for-a-single-role">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
To specify a role from the current database, specify the role by its name:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ rolesInfo: \"<rolename>\" }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-attr">rolesInfo</span>: <span class="lg-highlight-string">"<rolename>"</span> }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To specify a role from another database, specify the role by a document that
specifies the role and database:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ rolesInfo: { role: \"<rolename>\", db: \"<database>\" } }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-attr">rolesInfo</span>: <!-- -->{ <span class="lg-highlight-attr">role</span>: <span class="lg-highlight-string">"<rolename>"</span>, <span class="lg-highlight-attr">db</span>: <span class="lg-highlight-string">"<database>"</span> } }</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</button>
</div>
</div>
</div>
</div>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Return Information for Multiple Roles
<a class="headerlink leafygreen-ui-1kepx47" href="#return-information-for-multiple-roles" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="return-information-for-multiple-roles">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
To specify multiple roles, use an array. Specify each role in the array as a
document or string. Use a string only if the role exists on the database on
which the command runs:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n rolesInfo: [\n \"<rolename>\",\n { role: \"<rolename>\", db: \"<database>\" },\n ...\n ]\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">rolesInfo</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"<rolename>"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">role</span>: <span class="lg-highlight-string">"<rolename>"</span>, <span class="lg-highlight-attr">db</span>: <span class="lg-highlight-string">"<database>"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Return Information for All Roles in the Database
<a class="headerlink leafygreen-ui-1kepx47" href="#return-information-for-all-roles-in-the-database" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="return-information-for-all-roles-in-the-database">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
To specify all roles in the database on which the command runs, specify
<code class="leafygreen-ui-1l06pbn">
rolesInfo: 1
</code>
. By default MongoDB displays all the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/security-user-defined-roles/#std-label-user-defined-roles">
user-defined roles
</a>
in the database. To include
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/built-in-roles/#std-label-built-in-roles">
built-in roles
</a>
as well, include the parameter-value pair
<code class="leafygreen-ui-1l06pbn">
showBuiltinRoles: true
</code>
:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ rolesInfo: 1, showBuiltinRoles: true }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-attr">rolesInfo</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-attr">showBuiltinRoles</span>: <span class="lg-highlight-literal">true</span> }</td></tr></tbody></table></code></pre>
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Required Access
<a class="headerlink leafygreen-ui-1kepx47" href="#required-access" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="required-access">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
To view a role's information, you must be either explicitly granted the
role or must have the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/privilege-actions/#mongodb-authaction-viewRole">
<code class="leafygreen-ui-1l06pbn">
viewRole
</code>
</a>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/privilege-actions/#std-label-security-user-actions">
action
</a>
on the role's database.
</p>
<span class="leafygreen-ui-1qnjd6d" id="std-label-rolesinfo-output">
</span>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Output
<a class="headerlink leafygreen-ui-1kepx47" href="#output" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="output">
</div>
</a>
</h2>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
rolesInfo.role
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-rolesInfo.role" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-rolesInfo.role">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The name of the role.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
rolesInfo.db
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-rolesInfo.db" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-rolesInfo.db">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The database on which the role is defined. Every database has
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/built-in-roles/#std-label-built-in-roles">
built-in
roles
</a>
. A database might also have
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/security-user-defined-roles/#std-label-user-defined-roles">
user-defined
roles
<!-- -->
.
</a>
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
rolesInfo.isBuiltin
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-rolesInfo.isBuiltin" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-rolesInfo.isBuiltin">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
A value of
<code class="leafygreen-ui-1l06pbn">
true
</code>
indicates the role is a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/built-in-roles/#std-label-built-in-roles">
built-in role
</a>
. A value of
<code class="leafygreen-ui-1l06pbn">
false
</code>
indicates the role is a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/security-user-defined-roles/#std-label-user-defined-roles">
user-defined role
<!-- -->
.
</a>
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
rolesInfo.roles
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-rolesInfo.roles" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-rolesInfo.roles">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The roles that directly provide privileges to this role and the databases
on which the roles are defined.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
rolesInfo.inheritedRoles
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-rolesInfo.inheritedRoles" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-rolesInfo.inheritedRoles">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
All roles from which this role inherits privileges. This includes the roles
in the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-rolesInfo.roles" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
rolesInfo.roles
</code>
</span>
</a>
array as well as the roles from which the
roles in the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-rolesInfo.roles" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
rolesInfo.roles
</code>
</span>
</a>
array inherit privileges. All
privileges apply to the current role. The documents in this field list the
roles and the databases on which they are defined.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
rolesInfo.privileges
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-rolesInfo.privileges" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-rolesInfo.privileges">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The privileges directly specified by this role; i.e. the array
excludes privileges inherited from other roles. By default the
output does not include the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-rolesInfo.privileges" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
privileges
</code>
</span>
</a>
field. To
include the field, specify
<code class="leafygreen-ui-1l06pbn">
showPrivileges: true
</code>
when running the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.rolesInfo" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
rolesInfo
</code>
</span>
</a>
command.
</p>
<p class="leafygreen-ui-1kp3ins">
Each privilege document specifies the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/resource-document/#std-label-resource-document">
resources
</a>
and the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/privilege-actions/">
actions
</a>
allowed on the resources.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
rolesInfo.inheritedPrivileges
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-rolesInfo.inheritedPrivileges" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-rolesInfo.inheritedPrivileges">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
All privileges granted by this role, including those inherited from
other roles. By default the output does not include the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-rolesInfo.inheritedPrivileges" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
inheritedPrivileges
</code>
</span>
</a>
field. To include the field,
specify
<code class="leafygreen-ui-1l06pbn">
showPrivileges: true
</code>
when running the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.rolesInfo" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
rolesInfo
</code>
</span>
</a>
command.
</p>
<p class="leafygreen-ui-1kp3ins">
Each privilege document specifies the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/resource-document/#std-label-resource-document">
resources
</a>
and the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/privilege-actions/">
actions
</a>
allowed on the resources.
</p>
</dd>
</dl>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Examples
<a class="headerlink leafygreen-ui-1kepx47" href="#examples" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="examples">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The examples in this section show how to use the
<code class="leafygreen-ui-1l06pbn">
rolesInfo
</code>
command
to:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-rolesInfo-example-single-role" target="_self">
<span>
View Information for a Single Role
</span>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-rolesInfo-example-multiple-roles" target="_self">
<span>
View Information for Multiple Roles
</span>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-rolesInfo-example-user-defined-roles" target="_self">
<span>
View All User-Defined Roles for a Database
</span>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-rolesInfo-example-user-defined-and-built-in-roles" target="_self">
<span>
View All User-Defined and Built-In Roles for a Database
</span>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-rolesInfo-example-auth-restrictions" target="_self">
<span>
View Authentication Restrictions for Roles
</span>
</a>
</p>
</li>
</ul>
<span class="leafygreen-ui-1qnjd6d" id="std-label-rolesInfo-example-single-role">
</span>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
View Information for a Single Role
<a class="headerlink leafygreen-ui-1kepx47" href="#view-information-for-a-single-role" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="view-information-for-a-single-role">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The following command returns the role inheritance information for the
role
<code class="leafygreen-ui-1l06pbn">
associate
</code>
defined in the
<code class="leafygreen-ui-1l06pbn">
products
</code>
database:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.runCommand(\n {\n rolesInfo: { role: \"associate\", db: \"products\" }\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">runCommand</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">rolesInfo</span>: <!-- -->{ <span class="lg-highlight-attr">role</span>: <span class="lg-highlight-string">"associate"</span>, <span class="lg-highlight-attr">db</span>: <span class="lg-highlight-string">"products"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The following command returns the role inheritance information for the role
<code class="leafygreen-ui-1l06pbn">
siteManager
</code>
on the database on which the command runs:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.runCommand(\n {\n rolesInfo: \"siteManager\"\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">runCommand</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">rolesInfo</span>: <span class="lg-highlight-string">"siteManager"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The following command returns
<em>
both
</em>
the role inheritance and the privileges
for the role
<code class="leafygreen-ui-1l06pbn">
associate
</code>
defined on the
<code class="leafygreen-ui-1l06pbn">
products
</code>
database:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.runCommand(\n {\n rolesInfo: { role: \"associate\", db: \"products\" },\n showPrivileges: true\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">runCommand</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">rolesInfo</span>: <!-- -->{ <span class="lg-highlight-attr">role</span>: <span class="lg-highlight-string">"associate"</span>, <span class="lg-highlight-attr">db</span>: <span class="lg-highlight-string">"products"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">showPrivileges</span>: <span class="lg-highlight-literal">true</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-rolesInfo-example-multiple-roles">
</span>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
View Information for Multiple Roles
<a class="headerlink leafygreen-ui-1kepx47" href="#view-information-for-multiple-roles" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="view-information-for-multiple-roles">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The following command returns information for two roles on two different
databases:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.runCommand(\n {\n rolesInfo: [\n { role: \"associate\", db: \"products\" },\n { role: \"manager\", db: \"resources\" }\n ]\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">runCommand</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">rolesInfo</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">role</span>: <span class="lg-highlight-string">"associate"</span>, <span class="lg-highlight-attr">db</span>: <span class="lg-highlight-string">"products"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">role</span>: <span class="lg-highlight-string">"manager"</span>, <span class="lg-highlight-attr">db</span>: <span class="lg-highlight-string">"resources"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The following returns
<em>
both
</em>
the role inheritance and the privileges:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.runCommand(\n {\n rolesInfo: [\n { role: \"associate\", db: \"products\" },\n { role: \"manager\", db: \"resources\" }\n ],\n showPrivileges: true\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">runCommand</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">rolesInfo</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">role</span>: <span class="lg-highlight-string">"associate"</span>, <span class="lg-highlight-attr">db</span>: <span class="lg-highlight-string">"products"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">role</span>: <span class="lg-highlight-string">"manager"</span>, <span class="lg-highlight-attr">db</span>: <span class="lg-highlight-string">"resources"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">showPrivileges</span>: <span class="lg-highlight-literal">true</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-rolesInfo-example-user-defined-roles">
</span>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
View All User-Defined Roles for a Database
<a class="headerlink leafygreen-ui-1kepx47" href="#view-all-user-defined-roles-for-a-database" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="view-all-user-defined-roles-for-a-database">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The following operation returns all
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/security-user-defined-roles/#std-label-user-defined-roles">
user-defined roles
</a>
on the database on which the command runs and includes
privileges:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.runCommand(\n {\n rolesInfo: 1,\n showPrivileges: true\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">runCommand</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">rolesInfo</span>: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">showPrivileges</span>: <span class="lg-highlight-literal">true</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Example output (shortened for readability):
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n roles: [\n {\n _id: 'products.associate',\n role: 'associate',\n db: 'products',\n privileges: [\n {\n resource: { db: 'products', collection: '' },\n actions: [ 'bypassDocumentValidation' ]\n }\n ],\n roles: [ { role: 'readWrite', db: 'products' } ],\n isBuiltin: false,\n inheritedRoles: [ { role: 'readWrite', db: 'products' } ],\n inheritedPrivileges: [\n {\n resource: { db: 'products', collection: '' },\n actions: [ 'bypassDocumentValidation' ]\n },\n {\n resource: { db: 'products', collection: '' },\n actions: [\n 'changeStream',\n 'collStats',\n 'compactStructuredEncryptionData',\n ...\n ]\n },\n ...\n ]\n }\n ],\n ok: 1\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">roles</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-string">'products.associate'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">role</span>: <span class="lg-highlight-string">'associate'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">db</span>: <span class="lg-highlight-string">'products'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">privileges</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">resource</span>: <!-- -->{ <span class="lg-highlight-attr">db</span>: <span class="lg-highlight-string">'products'</span>, <span class="lg-highlight-attr">collection</span>: <span class="lg-highlight-string">''</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">actions</span>: <!-- -->[ <span class="lg-highlight-string">'bypassDocumentValidation'</span> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">roles</span>: <!-- -->[ <!-- -->{ <span class="lg-highlight-attr">role</span>: <span class="lg-highlight-string">'readWrite'</span>, <span class="lg-highlight-attr">db</span>: <span class="lg-highlight-string">'products'</span> } ]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">isBuiltin</span>: <span class="lg-highlight-literal">false</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">inheritedRoles</span>: <!-- -->[ <!-- -->{ <span class="lg-highlight-attr">role</span>: <span class="lg-highlight-string">'readWrite'</span>, <span class="lg-highlight-attr">db</span>: <span class="lg-highlight-string">'products'</span> } ]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">inheritedPrivileges</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">resource</span>: <!-- -->{ <span class="lg-highlight-attr">db</span>: <span class="lg-highlight-string">'products'</span>, <span class="lg-highlight-attr">collection</span>: <span class="lg-highlight-string">''</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">actions</span>: <!-- -->[ <span class="lg-highlight-string">'bypassDocumentValidation'</span> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">resource</span>: <!-- -->{ <span class="lg-highlight-attr">db</span>: <span class="lg-highlight-string">'products'</span>, <span class="lg-highlight-attr">collection</span>: <span class="lg-highlight-string">''</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">actions</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">'changeStream'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">'collStats'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">'compactStructuredEncryptionData'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">ok</span>: <span class="lg-highlight-number">1</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-rolesInfo-example-user-defined-and-built-in-roles">
</span>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
View All User-Defined and Built-In Roles for a Database
<a class="headerlink leafygreen-ui-1kepx47" href="#view-all-user-defined-and-built-in-roles-for-a-database" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="view-all-user-defined-and-built-in-roles-for-a-database">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The following operation returns all roles on the database on which the command
runs, including both built-in and user-defined roles:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.runCommand(\n {\n rolesInfo: 1,\n showBuiltinRoles: true\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">runCommand</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">rolesInfo</span>: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">showBuiltinRoles</span>: <span class="lg-highlight-literal">true</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Example output (shortened for readability):
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n roles: [\n {\n role: 'enableSharding',\n db: 'products',\n isBuiltin: true,\n roles: [],\n inheritedRoles: []\n },\n {\n role: 'userAdmin',\n db: 'products',\n isBuiltin: true,\n roles: [],\n inheritedRoles: []\n },\n {\n role: 'read',\n db: 'products',\n isBuiltin: true,\n roles: [],\n inheritedRoles: []\n },\n ...\n ],\n ok: 1\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">roles</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">role</span>: <span class="lg-highlight-string">'enableSharding'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">db</span>: <span class="lg-highlight-string">'products'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">isBuiltin</span>: <span class="lg-highlight-literal">true</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">roles</span>: <!-- -->[<!-- -->]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">inheritedRoles</span>: <!-- -->[<!-- -->]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">role</span>: <span class="lg-highlight-string">'userAdmin'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">db</span>: <span class="lg-highlight-string">'products'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">isBuiltin</span>: <span class="lg-highlight-literal">true</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">roles</span>: <!-- -->[<!-- -->]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">inheritedRoles</span>: <!-- -->[<!-- -->]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">role</span>: <span class="lg-highlight-string">'read'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">db</span>: <span class="lg-highlight-string">'products'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">isBuiltin</span>: <span class="lg-highlight-literal">true</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">roles</span>: <!-- -->[<!-- -->]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">inheritedRoles</span>: <!-- -->[<!-- -->]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">ok</span>: <span class="lg-highlight-number">1</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-rolesInfo-example-auth-restrictions">
</span>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
View Authentication Restrictions for Roles
<a class="headerlink leafygreen-ui-1kepx47" href="#view-authentication-restrictions-for-roles" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="view-authentication-restrictions-for-roles">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The following operation returns all user-defined roles on the
<code class="leafygreen-ui-1l06pbn">
products
</code>
database and includes authentication restrictions:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.runCommand(\n {\n rolesInfo: 1,\n showAuthenticationRestrictions: true\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">runCommand</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">rolesInfo</span>: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">showAuthenticationRestrictions</span>: <span class="lg-highlight-literal">true</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Example output:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n roles: [\n {\n _id: 'products.associate',\n role: 'associate',\n db: 'products',\n roles: [ { role: 'readWrite', db: 'products' } ],\n authenticationRestrictions: [\n [ { clientSource: [ '198.51.100.0' ] } ]\n ],\n isBuiltin: false,\n inheritedRoles: [ { role: 'readWrite', db: 'products' } ],\n inheritedAuthenticationRestrictions: [\n [ { clientSource: [ '198.51.100.0' ] } ]\n ]\n }\n ],\n ok: 1\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">roles</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-string">'products.associate'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">role</span>: <span class="lg-highlight-string">'associate'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">db</span>: <span class="lg-highlight-string">'products'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">roles</span>: <!-- -->[ <!-- -->{ <span class="lg-highlight-attr">role</span>: <span class="lg-highlight-string">'readWrite'</span>, <span class="lg-highlight-attr">db</span>: <span class="lg-highlight-string">'products'</span> } ]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">authenticationRestrictions</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->[ <!-- -->{ <span class="lg-highlight-attr">clientSource</span>: <!-- -->[ <span class="lg-highlight-string">'198.51.100.0'</span> ] } ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">isBuiltin</span>: <span class="lg-highlight-literal">false</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">inheritedRoles</span>: <!-- -->[ <!-- -->{ <span class="lg-highlight-attr">role</span>: <span class="lg-highlight-string">'readWrite'</span>, <span class="lg-highlight-attr">db</span>: <span class="lg-highlight-string">'products'</span> } ]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">inheritedAuthenticationRestrictions</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->[ <!-- -->{ <span class="lg-highlight-attr">clientSource</span>: <!-- -->[ <span class="lg-highlight-string">'198.51.100.0'</span> ] } ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">ok</span>: <span class="lg-highlight-number">1</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</section>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/operator/aggregation/strLenCP/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
$strLenCP (aggregation)
<a class="headerlink leafygreen-ui-1kepx47" href="#-strlencp--aggregation-" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="-strlencp--aggregation-">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#definition" target="_self">
<span>
Definition
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#behavior" target="_self">
<span>
Behavior
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#example" target="_self">
<span>
Example
</span>
</a>
</li>
</ul>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Definition
<a class="headerlink leafygreen-ui-1kepx47" href="#definition" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="definition">
</div>
</a>
</h2>
<dl class="expression">
<dt>
<code class="leafygreen-ui-1l06pbn">
$strLenCP
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-expression-exp.-strLenCP" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-expression-exp.-strLenCP">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Returns the number of UTF-8
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://www.unicode.org/glossary/#code_point" rel="noopener noreferrer">
<span>
code points
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
in the specified string.
</p>
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-expression-exp.-strLenCP" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$strLenCP
</code>
</span>
</a>
has the following
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/#std-label-agg-quick-ref-operator-expressions">
operator expression
syntax
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ $strLenCP: <string> }","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1agdxuk" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-attr">$strLenCP</span>: <span class="lg-highlight-tag lg-highlight-xml"><</span><span class="lg-highlight-name lg-highlight-tag lg-highlight-xml">string</span><span class="lg-highlight-tag lg-highlight-xml"> </span><span class="lg-highlight-attr lg-highlight-tag lg-highlight-xml">expression</span><span class="lg-highlight-tag lg-highlight-xml">></span><span class="lg-highlight-xml"> }</span></td></tr></tbody></table></code></pre>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The argument can be any valid
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/#std-label-aggregation-expressions">
expression
</a>
that resolves to a string.
</p>
<p class="leafygreen-ui-1kp3ins">
If the argument resolves to a value of
<code class="leafygreen-ui-1l06pbn">
null
</code>
or refers to a
missing field,
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-expression-exp.-strLenCP" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$strLenCP
</code>
</span>
</a>
returns an error.
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:95%"/>
<col style="width:5%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Example
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Results
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
{ $strLenCP: "abcde" }
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
5
</code>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
{ $strLenCP: "Hello World!" }
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
12
</code>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
{ $strLenCP: "cafeteria" }
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
9
</code>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
{ $strLenCP: "cafétéria" }
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
9
</code>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
{ $strLenCP: "" }
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
0
</code>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
{ $strLenCP: "$€λA" }
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
4
</code>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
{ $strLenCP: "寿司" }
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
2
</code>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</dd>
</dl>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Behavior
<a class="headerlink leafygreen-ui-1kepx47" href="#behavior" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="behavior">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-expression-exp.-strLenCP" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$strLenCP
</code>
</span>
</a>
operator counts the number of code points
in the specified string. This behavior differs from the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/strLenBytes/#mongodb-expression-exp.-strLenBytes">
<code class="leafygreen-ui-1l06pbn">
$strLenBytes
</code>
</a>
operator that counts the number of bytes in
the string, where each character uses between one and four bytes.
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Example
<a class="headerlink leafygreen-ui-1kepx47" href="#example" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="example">
</div>
</a>
</h2>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Single-Byte and Multibyte Character Set
<a class="headerlink leafygreen-ui-1kepx47" href="#single-byte-and-multibyte-character-set" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="single-byte-and-multibyte-character-set">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Create a
<code class="leafygreen-ui-1l06pbn">
food
</code>
collection:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.food.insertMany( [\n { _id: 1, name: \"apple\" },\n { _id: 2, name: \"banana\" },\n { _id: 3, name: \"éclair\" },\n { _id: 4, name: \"hamburger\" },\n { _id: 5, name: \"jalapeño\" },\n { _id: 6, name: \"pizza\" },\n { _id: 7, name: \"tacos\" },\n { _id: 8, name: \"寿司\" }\n] )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">food</span>.<span class="lg-highlight-title lg-highlight-function">insertMany</span>( <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">"apple"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">"banana"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">3</span>, <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">"éclair"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">4</span>, <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">"hamburger"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">"jalapeño"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">6</span>, <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">"pizza"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">7</span>, <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">"tacos"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">8</span>, <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">"寿司"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">] )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The following example uses the
<code class="leafygreen-ui-1l06pbn">
$strLenCP
</code>
operator to calculate
the
<code class="leafygreen-ui-1l06pbn">
length
</code>
of each
<code class="leafygreen-ui-1l06pbn">
name
</code>
value:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.food.aggregate( [\n {\n $project: {\n name: 1,\n length: { $strLenCP: \"$name\" }\n }\n }\n] )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">food</span>.<span class="lg-highlight-title lg-highlight-function">aggregate</span>( <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">$project</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">length</span>: <!-- -->{ <span class="lg-highlight-attr">$strLenCP</span>: <span class="lg-highlight-string">"$name"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">] )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Example output:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"[\n { _id: 1, name: 'apple', length: 5 },\n { _id: 2, name: 'banana', length: 6 },\n { _id: 3, name: 'éclair', length: 6 },\n { _id: 4, name: 'hamburger', length: 9 },\n { _id: 5, name: 'jalapeño', length: 8 },\n { _id: 6, name: 'pizza', length: 5 },\n { _id: 7, name: 'tacos', length: 5 },\n { _id: 8, name: '寿司', length: 2 }\n]","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">'apple'</span>, <span class="lg-highlight-attr">length</span>: <span class="lg-highlight-number">5</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">'banana'</span>, <span class="lg-highlight-attr">length</span>: <span class="lg-highlight-number">6</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">3</span>, <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">'éclair'</span>, <span class="lg-highlight-attr">length</span>: <span class="lg-highlight-number">6</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">4</span>, <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">'hamburger'</span>, <span class="lg-highlight-attr">length</span>: <span class="lg-highlight-number">9</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">5</span>, <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">'jalapeño'</span>, <span class="lg-highlight-attr">length</span>: <span class="lg-highlight-number">8</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">6</span>, <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">'pizza'</span>, <span class="lg-highlight-attr">length</span>: <span class="lg-highlight-number">5</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">7</span>, <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">'tacos'</span>, <span class="lg-highlight-attr">length</span>: <span class="lg-highlight-number">5</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">8</span>, <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">'寿司'</span>, <span class="lg-highlight-attr">length</span>: <span class="lg-highlight-number">2</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">]</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/strLenBytes/#mongodb-expression-exp.-strLenBytes">
<code class="leafygreen-ui-1l06pbn">
$strLenBytes
</code>
</a>
</p>
</div>
</div>
</section>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/inconsistency-type/ShardMissingCollectionRoutingInfo/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
ShardMissingCollectionRoutingInfo
<a class="headerlink leafygreen-ui-1kepx47" href="#shardmissingcollectionroutinginfo" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="shardmissingcollectionroutinginfo">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#description" target="_self">
<span>
Description
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#format" target="_self">
<span>
Format
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#example" target="_self">
<span>
Example
</span>
</a>
</li>
</ul>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Description
<a class="headerlink leafygreen-ui-1kepx47" href="#description" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="description">
</div>
</a>
</h2>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
ShardMissingCollectionRoutingInfo
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-ShardMissingCollectionRoutingInfo" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-ShardMissingCollectionRoutingInfo">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
A shard is missing routing information for a collection.
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
8.0
</em>
.
</p>
</div>
</dd>
</dl>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Format
<a class="headerlink leafygreen-ui-1kepx47" href="#format" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="format">
</div>
</a>
</h2>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n type: \"ShardMissingCollectionRoutingInfo\",\n description: \"<string>\",\n details: {\n namespace: \"<string>\",\n collectionUUID: UUID(\"<uuid>\"),\n shard: \"<string>\"\n }\n}","programmingLanguage":"JSON"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light json leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-punctuation">{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> type<span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"ShardMissingCollectionRoutingInfo"</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> description<span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"<string>"</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> details<span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-punctuation">{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> namespace<span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"<string>"</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> collectionUUID<span class="lg-highlight-punctuation">:</span> UUID(<span class="lg-highlight-string">"<uuid>"</span>)<span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> shard<span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"<string>"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-punctuation">}</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-punctuation">}</span></td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
ShardMissingCollectionRoutingInfo
</code>
inconsistency documents contain these fields:
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:30%"/>
<col style="width:25%"/>
<col style="width:45%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Field
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Type
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
type
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
string
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Type of inconsistency document. Returns a value of
<code class="leafygreen-ui-1l06pbn">
ShardMissingCollectionRoutingInfo
</code>
for this
inconsistency type.
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
description
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
string
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Describes the inconsistency found in the metadata.
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
details
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
document
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Document with additional information on where the inconsistency exists in the
database and sharded cluster.
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
details.namespace
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
string
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Indicates the database and collection where the inconsistency exists.
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
details.collectionUUID
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
UUID
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
UUID of the collection.
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
details.shard
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
string
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
The shard where the inconsistency exists.
</p>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Example
<a class="headerlink leafygreen-ui-1kepx47" href="#example" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="example">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
Use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.adminCommand/#mongodb-method-db.adminCommand">
<code class="leafygreen-ui-1l06pbn">
db.adminCommand()
</code>
</a>
method to call the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/checkMetadataConsistency/#mongodb-dbcommand-dbcmd.checkMetadataConsistency">
<code class="leafygreen-ui-1l06pbn">
checkMetadataConsistency
</code>
</a>
command:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand( { checkMetadataConsistency: 1 } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>( <!-- -->{ <span class="lg-highlight-attr">checkMetadataConsistency</span>: <span class="lg-highlight-number">1</span> } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The method returns a cursor with a batch of documents showing the inconsistencies
found in the sharding metadata. The example below shows a cursor with
a
<code class="leafygreen-ui-1l06pbn">
ShardMissingCollectionRoutingInfo
</code>
inconsistency document:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n cursor: {\n id: Long(\"0\"),\n ns: \"test.$cmd.aggregate\",\n firstBatch: [\n {\n type: \"ShardMissingCollectionRoutingInfo\",\n description: \"Shard is missing routing information for the collection\",\n details: {\n namespace: \"test.authors\",\n collectionUUID: new UUID(\"62ebdb7e-a7bb-4151-a620-49d44cef097f\"),\n shard: \"shard02\"\n }\n }\n ],\n },\n ok: 1\n}","programmingLanguage":"JSON"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light json leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-punctuation">{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> cursor<span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-punctuation">{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> id<span class="lg-highlight-punctuation">:</span> Long(<span class="lg-highlight-string">"0"</span>)<span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ns<span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"test.$cmd.aggregate"</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> firstBatch<span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-punctuation">[</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-punctuation">{</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> type<span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"ShardMissingCollectionRoutingInfo"</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> description<span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"Shard is missing routing information for the collection"</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> details<span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-punctuation">{</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> namespace<span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"test.authors"</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> collectionUUID<span class="lg-highlight-punctuation">:</span> new UUID(<span class="lg-highlight-string">"62ebdb7e-a7bb-4151-a620-49d44cef097f"</span>)<span class="lg-highlight-punctuation">,</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> shard<span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"shard02"</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-punctuation">}</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-punctuation">}</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-punctuation">]</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-punctuation">}</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ok<span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-number">1</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-punctuation">}</span></td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/command/setFeatureCompatibilityVersion/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
setFeatureCompatibilityVersion
<a class="headerlink leafygreen-ui-1kepx47" href="#setfeaturecompatibilityversion" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="setfeaturecompatibilityversion">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#definition" target="_self">
<span>
Definition
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#compatibility" target="_self">
<span>
Compatibility
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#syntax" target="_self">
<span>
Syntax
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#command-fields" target="_self">
<span>
Command Fields
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#setfeaturecompatibilityversion-1" target="_self">
<span>
setFeatureCompatibilityVersion
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#confirm" target="_self">
<span>
confirm
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#writeconcern" target="_self">
<span>
writeConcern
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#behavior" target="_self">
<span>
Behavior
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#downgrade-with-backward-incompatible-data" target="_self">
<span>
Downgrade with Backward-Incompatible Data
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#downgrade-policy-changes-in-mongodb-7.0" target="_self">
<span>
Downgrade Policy Changes in MongoDB 7.0
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#conflicts-with-background-operations" target="_self">
<span>
Conflicts with Background Operations
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#sync-failures" target="_self">
<span>
Sync Failures
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#default-values" target="_self">
<span>
Default Values
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#idempotency" target="_self">
<span>
Idempotency
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#cluster-to-cluster-sync-and-user-write-blocking" target="_self">
<span>
Cluster-to-Cluster Sync and User Write Blocking
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#feature-compatibility-in-arbiters" target="_self">
<span>
Feature Compatibility in Arbiters
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#examples" target="_self">
<span>
Examples
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#get-featurecompatibilityversion" target="_self">
<span>
Get FeatureCompatibilityVersion
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#set-feature-compatibility-version-on-mongodb-7.0-deployments" target="_self">
<span>
Set Feature Compatibility Version on MongoDB 7.0 Deployments
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#set-feature-compatibility-version-on-mongodb-6.0-deployments" target="_self">
<span>
Set Feature Compatibility Version on MongoDB 6.0 Deployments
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#set-feature-compatibility-version-on-mongodb-5.0-deployments" target="_self">
<span>
Set Feature Compatibility Version on MongoDB 5.0 Deployments
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#set-write-concern-timeout" target="_self">
<span>
Set Write Concern Timeout
</span>
</a>
</li>
</ul>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Definition
<a class="headerlink leafygreen-ui-1kepx47" href="#definition" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="definition">
</div>
</a>
</h2>
<dl class="dbcommand">
<dt>
<code class="leafygreen-ui-1l06pbn">
setFeatureCompatibilityVersion
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-dbcommand-dbcmd.setFeatureCompatibilityVersion" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-dbcommand-dbcmd.setFeatureCompatibilityVersion">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Enables or disables the features that persist data incompatible with
earlier versions of MongoDB. You can only issue the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.setFeatureCompatibilityVersion" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
setFeatureCompatibilityVersion
</code>
</span>
</a>
against the
<code class="leafygreen-ui-1l06pbn">
admin
</code>
database.
</p>
</dd>
</dl>
<div class="leafygreen-ui-1sjx7ru" role="note">
<h2 class="leafygreen-ui-29m78u">
Warning
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Enabling backwards-incompatible features can complicate the
downgrade process since you must remove any persisted
backwards-incompatible features before you downgrade.
</p>
<p class="leafygreen-ui-1kp3ins">
It is recommended that after upgrading, you allow your deployment to
run without enabling backwards-incompatible features for a burn-in period
to ensure the likelihood of downgrade is minimal. When you are confident
that the likelihood of downgrade is minimal, enable these features.
</p>
</div>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Compatibility
<a class="headerlink leafygreen-ui-1kepx47" href="#compatibility" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="compatibility">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
This command is available in deployments hosted in the following environments:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas?tck=docs_server" target="_self">
<span>
MongoDB Atlas
</span>
</a>
: The fully
managed service for MongoDB deployments in the cloud
</p>
</li>
</ul>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
This command is not supported in M0, M2, M5, and M10+ clusters.
For more information, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/unsupported-commands/" target="_self">
<span>
Unsupported Commands
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/install-enterprise/#std-label-install-mdb-enterprise">
MongoDB Enterprise
</a>
: The
subscription-based, self-managed version of MongoDB
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/install-community/#std-label-install-mdb-community-edition">
MongoDB Community
</a>
: The
source-available, free-to-use, and self-managed version of MongoDB
</p>
</li>
</ul>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Syntax
<a class="headerlink leafygreen-ui-1kepx47" href="#syntax" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="syntax">
</div>
</a>
</h2>
<div>
<p>
<em>
Changed
<!-- -->
in version
<!-- -->
7.0
</em>
.
</p>
</div>
<p class="leafygreen-ui-1kp3ins">
The command has the following syntax:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand(\n {\n setFeatureCompatibilityVersion: <version>,\n confirm: true,\n writeConcern: { wtimeout: <timeout> }\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">setFeatureCompatibilityVersion</span>: <<!-- -->version<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">confirm</span>: <span class="lg-highlight-literal">true</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">writeConcern</span>: <!-- -->{ <span class="lg-highlight-attr">wtimeout</span>: <<!-- -->timeout<!-- -->> <!-- -->}</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Command Fields
<a class="headerlink leafygreen-ui-1kepx47" href="#command-fields" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="command-fields">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
setFeatureCompatibilityVersion
</code>
command takes the following
fields:
</p>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
setFeatureCompatibilityVersion
<a class="headerlink leafygreen-ui-1kepx47" href="#setfeaturecompatibilityversion-1" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="setfeaturecompatibilityversion-1">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
<em>
Required
</em>
</p>
<p class="leafygreen-ui-1kp3ins">
The possible values for
<code class="leafygreen-ui-1l06pbn">
version
</code>
are:
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:15%"/>
<col style="width:85%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Version
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
"7.0"
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
<em>
Available on MongoDB 7.0 Deployments
</em>
</p>
<p class="leafygreen-ui-1kp3ins">
Enables the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/release-notes/7.0/#std-label-7.0-downgrade-considerations">
7.0 features that persist data incompatible
with MongoDB 6.0
<!-- -->
.
</a>
</p>
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
"6.0"
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
<em>
Available on MongoDB 6.0 and 7.0 Deployments
</em>
</p>
<p class="leafygreen-ui-1kp3ins">
Enables the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/release-notes/6.0-compatibility/#std-label-6.0-downgrade-considerations">
6.0 features that persist data incompatible
with MongoDB 5.0
<!-- -->
.
</a>
</p>
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
"5.0"
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
<em>
Available on MongoDB 5.0 and 6.0 Deployments
</em>
</p>
<p class="leafygreen-ui-1kp3ins">
Enables the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/release-notes/5.0-compatibility/#std-label-5.0-compatibility-enabled">
5.0 features that persist data incompatible
with MongoDB 4.4
<!-- -->
.
</a>
</p>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
confirm
<a class="headerlink leafygreen-ui-1kepx47" href="#confirm" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="confirm">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
<em>
Required
</em>
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
7.0
</em>
.
</p>
</div>
<p class="leafygreen-ui-1kp3ins">
Set to
<code class="leafygreen-ui-1l06pbn">
true
</code>
to confirm the feature compatibility change and allow
the operation to proceed.
</p>
<p class="leafygreen-ui-1kp3ins">
If you omit the
<code class="leafygreen-ui-1l06pbn">
confirm
</code>
parameter or set
<code class="leafygreen-ui-1l06pbn">
confirm
</code>
to a value
other than
<code class="leafygreen-ui-1l06pbn">
true
</code>
, the command fails and returns a warning about
modifying the feature compatibility version. The warning states that
after you upgrade or downgrade your cluster's
<span class="leafygreen-ui-vm4wms" tabindex="0">
fCV
</span>
, you cannot
downgrade the binary version without support assistance.
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
writeConcern
<a class="headerlink leafygreen-ui-1kepx47" href="#writeconcern" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="writeconcern">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
<em>
Optional
</em>
</p>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
writeConcern
</code>
specifies the write concern
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/write-concern/#std-label-wc-wtimeout">
<code class="leafygreen-ui-1l06pbn">
wtimeout
</code>
</a>
value in milliseconds:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The time period that the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-primary">
primary
</a>
waits for
acknowledgment from the majority of the replica set members. If the
acknowledgment is not received in the time period, the operation
fails.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Default is
<code class="leafygreen-ui-1l06pbn">
60000
</code>
milliseconds. Use a longer time period if the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-secondary">
secondary
</a>
members of the replica set have a delay that exceeds
the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/write-concern/#std-label-wc-wtimeout">
<code class="leafygreen-ui-1l06pbn">
wtimeout
</code>
</a>
default.
</p>
</li>
</ul>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For a standalone, run the command on the standalone
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
instance.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For a replica set, run the command on the primary. A majority of the
data-bearing members must be available.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For a sharded cluster, run the command on a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instance.
</p>
</li>
</ul>
</div>
</div>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Behavior
<a class="headerlink leafygreen-ui-1kepx47" href="#behavior" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="behavior">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
If you must downgrade the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-view-fcv" target="_self">
<span>
feature compatibility version
</span>
</a>
below 8.0, you must first run the
<code class="leafygreen-ui-1l06pbn">
transitionToDedicatedConfigServer
</code>
command. For downgrade details,
see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/sharded-cluster-config-servers/#std-label-sharded-cluster-config-server-config-shards-downgrade">
Downgrade Feature Compatibility Version
<!-- -->
.
</a>
</p>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Downgrade with Backward-Incompatible Data
<a class="headerlink leafygreen-ui-1kepx47" href="#downgrade-with-backward-incompatible-data" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="downgrade-with-backward-incompatible-data">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
If you try to downgrade the
<span class="leafygreen-ui-vm4wms" tabindex="0">
fCV
</span>
of a cluster that contains
incompatible data in the downloaded version, you receive a
<code class="leafygreen-ui-1l06pbn">
CannotDowngrade
</code>
error. When this error occurs, the cluster remains
in the transitionary
<code class="leafygreen-ui-1l06pbn">
downgrading
</code>
state.
</p>
<p class="leafygreen-ui-1kp3ins">
To move the cluster out of the
<code class="leafygreen-ui-1l06pbn">
downgrading
</code>
state, either:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Modify your cluster data to remove backwards-incompatible features,
then re-run the
<code class="leafygreen-ui-1l06pbn">
setFeatureCompatibilityVersion
</code>
command with the
downgraded version to set the
<span class="leafygreen-ui-vm4wms" tabindex="0">
fCV
</span>
to the downgraded version.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Run the
<code class="leafygreen-ui-1l06pbn">
setFeatureCompatibilityVersion
</code>
command with the original
upgraded version to set the
<span class="leafygreen-ui-vm4wms" tabindex="0">
fCV
</span>
back to the original version.
</p>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Setting the
<span class="leafygreen-ui-vm4wms" tabindex="0">
fCV
</span>
to the original version stops the downgrade
procedure and changes the
<span class="leafygreen-ui-vm4wms" tabindex="0">
fCV
</span>
back to the upgraded version.
This procedure does not reset the cluster back to the state before
the
<span class="leafygreen-ui-vm4wms" tabindex="0">
fCV
</span>
downgrade began.
</p>
<p class="leafygreen-ui-1kp3ins">
If a failed
<span class="leafygreen-ui-vm4wms" tabindex="0">
fCV
</span>
downgrade's internal metadata is not
cleaned up, any subsequent fCV upgrade attempt fails with an
error message. You must complete the
<span class="leafygreen-ui-vm4wms" tabindex="0">
fCV
</span>
downgrade before
trying to upgrade the
<span class="leafygreen-ui-vm4wms" tabindex="0">
fCV
</span>
.
</p>
</div>
</div>
</li>
</ul>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Downgrade Policy Changes in MongoDB 7.0
<a class="headerlink leafygreen-ui-1kepx47" href="#downgrade-policy-changes-in-mongodb-7.0" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="downgrade-policy-changes-in-mongodb-7.0">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 7.0, you cannot downgrade your deployment's
<span class="leafygreen-ui-vm4wms" tabindex="0">
fCV
</span>
to or from a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/versioning/#std-label-rapid-releases">
rapid release
</a>
version of MongoDB.
</p>
<p class="leafygreen-ui-1kp3ins">
If you upgrade or downgrade your deployment's
<span class="leafygreen-ui-vm4wms" tabindex="0">
fCV
</span>
, you cannot
downgrade your deployment's binary version without assistance from
support.
</p>
<p class="leafygreen-ui-1kp3ins">
To learn more, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/release-notes/7.0-downgrade/#std-label-7.0-downgrade">
Downgrade
<!-- -->
7.0
<!-- -->
to
<!-- -->
6.0
<!-- -->
.
</a>
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Conflicts with Background Operations
<a class="headerlink leafygreen-ui-1kepx47" href="#conflicts-with-background-operations" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="conflicts-with-background-operations">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Certain background operations may prevent
execution of
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.setFeatureCompatibilityVersion" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
setFeatureCompatibilityVersion
</code>
</span>
</a>
. Use
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/currentOp/#mongodb-dbcommand-dbcmd.currentOp">
<code class="leafygreen-ui-1l06pbn">
currentOp
</code>
</a>
to identify any ongoing operations.
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Sync Failures
<a class="headerlink leafygreen-ui-1kepx47" href="#sync-failures" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="sync-failures">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
If you trigger a
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.setFeatureCompatibilityVersion" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
setFeatureCompatibilityVersion
</code>
</span>
</a>
change during an
initial sync, the sync may fail with an
<code class="leafygreen-ui-1l06pbn">
OplogOperationUnsupported
</code>
error
message when replaying entries on the
<code class="leafygreen-ui-1l06pbn">
oplog
</code>
application phase. The sync
following this attempt succeeds because the operation phase no longer replays
the operation.
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Default Values
<a class="headerlink leafygreen-ui-1kepx47" href="#default-values" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="default-values">
</div>
</a>
</h3>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:38%"/>
<col style="width:72%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Deployments
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
<code class="leafygreen-ui-1l06pbn">
featureCompatibilityVersion
</code>
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
For new 7.0 deployments
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
"7.0"
</code>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
For 7.0 deployments
<a class="leafygreen-ui-tqgtui" href="/docs/manual/release-notes/7.0/#std-label-7.0-upgrade">
upgraded from 6.0
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
"6.0"
</code>
until you
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.setFeatureCompatibilityVersion" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
setFeatureCompatibilityVersion
</code>
</span>
</a>
to
<code class="leafygreen-ui-1l06pbn">
"7.0"
</code>
.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
For new 6.0 deployments
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
"6.0"
</code>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
For 6.0 deployments
<a class="leafygreen-ui-tqgtui" href="/docs/manual/release-notes/6.0/#std-label-6.0-upgrade">
upgraded from 5.0
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
"5.0"
</code>
until you
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.setFeatureCompatibilityVersion" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
setFeatureCompatibilityVersion
</code>
</span>
</a>
to
<code class="leafygreen-ui-1l06pbn">
"6.0"
</code>
.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
For new 5.0 deployments
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
"5.0"
</code>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
For 5.0 deployments
<a class="leafygreen-ui-tqgtui" href="/docs/manual/release-notes/5.0/#std-label-5.0-upgrade">
upgraded from 4.4
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
"4.4"
</code>
until you
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.setFeatureCompatibilityVersion" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
setFeatureCompatibilityVersion
</code>
</span>
</a>
to
<code class="leafygreen-ui-1l06pbn">
"5.0"
</code>
.
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Idempotency
<a class="headerlink leafygreen-ui-1kepx47" href="#idempotency" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="idempotency">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
This command must perform writes to an internal system collection. If
for any reason the command does not complete successfully, you can
safely retry the command as the operation is idempotent.
</p>
<span class="leafygreen-ui-1qnjd6d" id="std-label-setFeatureCompatibilityVersion-user-write-blocking">
</span>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Cluster-to-Cluster Sync and User Write Blocking
<a class="headerlink leafygreen-ui-1kepx47" href="#cluster-to-cluster-sync-and-user-write-blocking" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="cluster-to-cluster-sync-and-user-write-blocking">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 6.0, if you need to downgrade the feature
compatibility version, ensure you disable cluster-to-cluster replication
and user write blocking.
</p>
<ol class="leafygreen-ui-rioki0" type="1">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
If you enabled cluster-to-cluster replication, disable it.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
If you enabled user write blocking, disable it:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.runCommand( { setUserWriteBlockMode: 1, global: false } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">runCommand</span>( <!-- -->{ <span class="lg-highlight-attr">setUserWriteBlockMode</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-attr">global</span>: <span class="lg-highlight-literal">false</span> } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Wait for the previous command to complete.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Downgrade the feature compatibility version using
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.setFeatureCompatibilityVersion" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
setFeatureCompatibilityVersion
</code>
.
</span>
</a>
</p>
</li>
</ol>
<p class="leafygreen-ui-1kp3ins">
For more information on MongoDB Cluster-to-Cluster Sync, see the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/cluster-to-cluster-sync/current" target="_self">
<span>
documentation
<!-- -->
.
</span>
</a>
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Feature Compatibility in Arbiters
<a class="headerlink leafygreen-ui-1kepx47" href="#feature-compatibility-in-arbiters" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="feature-compatibility-in-arbiters">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Arbiters do not replicate the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/system-collections/#mongodb-data-admin.system.version">
<code class="leafygreen-ui-1l06pbn">
admin.system.version
</code>
</a>
collection.
Because of this, arbiters always have a feature compatibility version equal
to the downgrade version of the binary, regardless of the fCV value of the
replica set.
</p>
<p class="leafygreen-ui-1kp3ins">
For example, an arbiter in a MongoDB 5.0 cluster, has an fCV
value of 4.4.
</p>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Examples
<a class="headerlink leafygreen-ui-1kepx47" href="#examples" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="examples">
</div>
</a>
</h2>
<span class="leafygreen-ui-1qnjd6d" id="std-label-view-fcv">
</span>
<span class="leafygreen-ui-1qnjd6d" id="std-label-get-feature-compat-version">
</span>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Get FeatureCompatibilityVersion
<a class="headerlink leafygreen-ui-1kepx47" href="#get-featurecompatibilityversion" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="get-featurecompatibilityversion">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
To view the
<code class="leafygreen-ui-1l06pbn">
featureCompatibilityVersion
</code>
for a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
instance, run the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/getParameter/#mongodb-dbcommand-dbcmd.getParameter">
<code class="leafygreen-ui-1l06pbn">
getParameter
</code>
</a>
command on a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
instance:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand(\n {\n getParameter: 1,\n featureCompatibilityVersion: 1\n }\n )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">getParameter</span>: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">featureCompatibilityVersion</span>: <span class="lg-highlight-number">1</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> )</td></tr></tbody></table></code></pre>
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<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The output resembles:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n featureCompatibilityVersion: { version: '5.0' },\n ok: 1,\n '$clusterTime': {\n clusterTime: Timestamp({ t: 1660318752, i: 5 }),\n signature: {\n hash: Binary(Buffer.from(\"ce0cff3621e9b089fa6d8e9a1e1efc1a1ff15dab\", \"hex\"), 0),\n keyId: Long(\"7129893797260951557\")\n }\n },\n operationTime: Timestamp({ t: 1660318752, i: 5 })\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">featureCompatibilityVersion</span>: <!-- -->{ <span class="lg-highlight-attr">version</span>: <span class="lg-highlight-string">'5.0'</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">ok</span>: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">'$clusterTime'</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">clusterTime</span>: <span class="lg-highlight-title lg-highlight-class">Timestamp</span>(<!-- -->{ <span class="lg-highlight-attr">t</span>: <span class="lg-highlight-number">1660318752</span>, <span class="lg-highlight-attr">i</span>: <span class="lg-highlight-number">5</span> })<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">signature</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">hash</span>: <span class="lg-highlight-title lg-highlight-class">Binary</span>(<span class="lg-highlight-title lg-highlight-class">Buffer</span>.<span class="lg-highlight-title lg-highlight-function">from</span>(<span class="lg-highlight-string">"ce0cff3621e9b089fa6d8e9a1e1efc1a1ff15dab"</span>, <span class="lg-highlight-string">"hex"</span>)<!-- -->, <span class="lg-highlight-number">0</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">keyId</span>: <span class="lg-highlight-title lg-highlight-class">Long</span>(<span class="lg-highlight-string">"7129893797260951557"</span>)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">operationTime</span>: <span class="lg-highlight-title lg-highlight-class">Timestamp</span>(<!-- -->{ <span class="lg-highlight-attr">t</span>: <span class="lg-highlight-number">1660318752</span>, <span class="lg-highlight-attr">i</span>: <span class="lg-highlight-number">5</span> })</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
The operation is undefined on the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instances.
</p>
<p class="leafygreen-ui-1kp3ins">
On a sharded cluster that has access control enabled, you must
connect to the shard as a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/security-users/#std-label-shard-local-users">
shard local user
</a>
to run the command.
</p>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-set-fcv">
</span>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Set Feature Compatibility Version on MongoDB 7.0 Deployments
<a class="headerlink leafygreen-ui-1kepx47" href="#set-feature-compatibility-version-on-mongodb-7.0-deployments" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="set-feature-compatibility-version-on-mongodb-7.0-deployments">
</div>
</a>
</h3>
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Enable 7.0 Backwards Incompatible Features
<a class="headerlink leafygreen-ui-1kepx47" href="#enable-7.0-backwards-incompatible-features" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="enable-7.0-backwards-incompatible-features">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
To enable the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/release-notes/7.0-compatibility/#std-label-7.0-downgrade-incompatible">
7.0 features that persist data incompatible with
MongoDB 6.0
</a>
, set the feature compatibility
to
<code class="leafygreen-ui-1l06pbn">
"7.0"
</code>
on the MongoDB 7.0 deployment:
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Run the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.setFeatureCompatibilityVersion" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
setFeatureCompatibilityVersion
</code>
</span>
</a>
command against
the
<code class="leafygreen-ui-1l06pbn">
admin
</code>
database.
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For a standalone, run the command on the standalone
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
instance.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For a replica set, run the command on the primary. A majority of the
data-bearing members must be available.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For a sharded cluster, run the command on a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instance.
</p>
</li>
</ul>
</div>
</div>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand(\n {\n setFeatureCompatibilityVersion: \"7.0\",\n confirm: true\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">setFeatureCompatibilityVersion</span>: <span class="lg-highlight-string">"7.0"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">confirm</span>: <span class="lg-highlight-literal">true</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</section>
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Disable 7.0 Backwards Incompatible Features
<a class="headerlink leafygreen-ui-1kepx47" href="#disable-7.0-backwards-incompatible-features" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="disable-7.0-backwards-incompatible-features">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
To disable the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/release-notes/7.0-compatibility/#std-label-7.0-downgrade-incompatible">
7.0 features that persist data incompatible with
MongoDB 6.0
</a>
, set the feature compatibility
to
<code class="leafygreen-ui-1l06pbn">
"6.0"
</code>
on the MongoDB 7.0 deployment:
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Run the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.setFeatureCompatibilityVersion" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
setFeatureCompatibilityVersion
</code>
</span>
</a>
command against
the
<code class="leafygreen-ui-1l06pbn">
admin
</code>
database.
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For a standalone, run the command on the standalone
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
instance.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For a replica set, run the command on the primary. A majority of the
data-bearing members must be available.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For a sharded cluster, run the command on a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instance.
</p>
</li>
</ul>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
"6.0"
</code>
featureCompatibilityVersion is supported on MongoDB
6.0 and MongoDB 7.0 deployments only.
</p>
</li>
</ul>
</div>
</div>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand(\n {\n setFeatureCompatibilityVersion: \"6.0\",\n confirm: true\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">setFeatureCompatibilityVersion</span>: <span class="lg-highlight-string">"6.0"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">confirm</span>: <span class="lg-highlight-literal">true</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
If run as part of the downgrade process from MongoDB 7.0 to MongoDB
6.0, you must also remove all persisted features that are
<a class="leafygreen-ui-tqgtui" href="/docs/manual/release-notes/7.0-compatibility/#std-label-7.0-downgrade-incompatible">
incompatible
</a>
with 6.0. See the
appropriate downgrade procedures.
</p>
</section>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Set Feature Compatibility Version on MongoDB 6.0 Deployments
<a class="headerlink leafygreen-ui-1kepx47" href="#set-feature-compatibility-version-on-mongodb-6.0-deployments" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="set-feature-compatibility-version-on-mongodb-6.0-deployments">
</div>
</a>
</h3>
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Enable 6.0 Backwards Incompatible Features
<a class="headerlink leafygreen-ui-1kepx47" href="#enable-6.0-backwards-incompatible-features" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="enable-6.0-backwards-incompatible-features">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
To enable the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/release-notes/6.0-compatibility/#std-label-6.0-downgrade-considerations">
6.0 features that persist data incompatible with
MongoDB 5.0
</a>
, set the feature compatibility
to
<code class="leafygreen-ui-1l06pbn">
"6.0"
</code>
on the MongoDB 6.0 deployment:
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Run the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.setFeatureCompatibilityVersion" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
setFeatureCompatibilityVersion
</code>
</span>
</a>
command against
the
<code class="leafygreen-ui-1l06pbn">
admin
</code>
database.
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For a standalone, run the command on the standalone
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
instance.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For a replica set, run the command on the primary. A majority of the
data-bearing members must be available.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For a sharded cluster, run the command on a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instance.
</p>
</li>
</ul>
</div>
</div>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand( { setFeatureCompatibilityVersion: \"6.0\" } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>( <!-- -->{ <span class="lg-highlight-attr">setFeatureCompatibilityVersion</span>: <span class="lg-highlight-string">"6.0"</span> } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</section>
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Disable 6.0 Backwards Incompatible Features
<a class="headerlink leafygreen-ui-1kepx47" href="#disable-6.0-backwards-incompatible-features" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="disable-6.0-backwards-incompatible-features">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
To disable the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/release-notes/6.0-compatibility/#std-label-6.0-downgrade-considerations">
6.0 features that persist data incompatible with
MongoDB 5.0
</a>
, set the feature compatibility
to
<code class="leafygreen-ui-1l06pbn">
"5.0"
</code>
on the MongoDB 6.0 deployment:
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Run the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.setFeatureCompatibilityVersion" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
setFeatureCompatibilityVersion
</code>
</span>
</a>
command against
the
<code class="leafygreen-ui-1l06pbn">
admin
</code>
database.
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For a standalone, run the command on the standalone
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
instance.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For a replica set, run the command on the primary. A majority of the
data-bearing members must be available.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For a sharded cluster, run the command on a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instance.
</p>
</li>
</ul>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
"5.0"
</code>
featureCompatibilityVersion is supported on MongoDB
5.0 and MongoDB 6.0 deployments only.
</p>
</li>
</ul>
</div>
</div>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand( { setFeatureCompatibilityVersion: \"5.0\" } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>( <!-- -->{ <span class="lg-highlight-attr">setFeatureCompatibilityVersion</span>: <span class="lg-highlight-string">"5.0"</span> } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
If run as part of the downgrade process from MongoDB 6.0 to MongoDB
5.0, you must also remove all persisted features that are
<a class="leafygreen-ui-tqgtui" href="/docs/manual/release-notes/6.0-compatibility/#std-label-6.0-downgrade-considerations">
incompatible
</a>
with 5.0. See the
appropriate downgrade procedures.
</p>
</section>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Set Feature Compatibility Version on MongoDB 5.0 Deployments
<a class="headerlink leafygreen-ui-1kepx47" href="#set-feature-compatibility-version-on-mongodb-5.0-deployments" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="set-feature-compatibility-version-on-mongodb-5.0-deployments">
</div>
</a>
</h3>
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Enable 5.0 Backwards Incompatible Features
<a class="headerlink leafygreen-ui-1kepx47" href="#enable-5.0-backwards-incompatible-features" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="enable-5.0-backwards-incompatible-features">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
To enable the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/release-notes/5.0-compatibility/#std-label-5.0-compatibility-enabled">
5.0 features that persist data incompatible with
MongoDB 4.4
</a>
, set the feature compatibility
to
<code class="leafygreen-ui-1l06pbn">
"5.0"
</code>
on the MongoDB 5.0 deployment:
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Run the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.setFeatureCompatibilityVersion" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
setFeatureCompatibilityVersion
</code>
</span>
</a>
command against
the
<code class="leafygreen-ui-1l06pbn">
admin
</code>
database.
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For a standalone, run the command on the standalone
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
instance.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For a replica set, run the command on the primary. A majority of the
data-bearing members must be available.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For a sharded cluster, run the command on a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instance.
</p>
</li>
</ul>
</div>
</div>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand( { setFeatureCompatibilityVersion: \"5.0\" } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>( <!-- -->{ <span class="lg-highlight-attr">setFeatureCompatibilityVersion</span>: <span class="lg-highlight-string">"5.0"</span> } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
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<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
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</div>
</section>
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Disable 5.0 Backwards Incompatible Features
<a class="headerlink leafygreen-ui-1kepx47" href="#disable-5.0-backwards-incompatible-features" title="Permalink to this heading">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="disable-5.0-backwards-incompatible-features">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
To disable the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/release-notes/5.0-compatibility/#std-label-5.0-compatibility-enabled">
5.0 features that persist data incompatible with
MongoDB 4.4
</a>
, set the feature compatibility
to
<code class="leafygreen-ui-1l06pbn">
"4.4"
</code>
on the MongoDB 5.0 deployment:
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Run the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.setFeatureCompatibilityVersion" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
setFeatureCompatibilityVersion
</code>
</span>
</a>
command against
the
<code class="leafygreen-ui-1l06pbn">
admin
</code>
database.
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For a standalone, run the command on the standalone
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
instance.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For a replica set, run the command on the primary. A majority of the
data-bearing members must be available.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For a sharded cluster, run the command on a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instance.
</p>
</li>
</ul>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
"4.4"
</code>
featureCompatibilityVersion is supported on MongoDB
4.4 and MongoDB 5.0 deployments only.
</p>
</li>
</ul>
</div>
</div>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand( { setFeatureCompatibilityVersion: \"4.4\" } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>( <!-- -->{ <span class="lg-highlight-attr">setFeatureCompatibilityVersion</span>: <span class="lg-highlight-string">"4.4"</span> } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
If run as part of the downgrade process from MongoDB 5.0 to MongoDB
4.4, you must also remove all persisted features that are
<a class="leafygreen-ui-tqgtui" href="/docs/manual/release-notes/5.0-compatibility/#std-label-5.0-compatibility-enabled">
incompatible
</a>
with 4.4. See the
appropriate downgrade procedures.
</p>
</section>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Set Write Concern Timeout
<a class="headerlink leafygreen-ui-1kepx47" href="#set-write-concern-timeout" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="set-write-concern-timeout">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The following example sets the optional write concern
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/write-concern/#std-label-wc-wtimeout">
<code class="leafygreen-ui-1l06pbn">
wtimeout
</code>
</a>
field to 5000 (5 seconds).
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Run the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.setFeatureCompatibilityVersion" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
setFeatureCompatibilityVersion
</code>
</span>
</a>
command against
the
<code class="leafygreen-ui-1l06pbn">
admin
</code>
database.
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For a standalone, run the command on the standalone
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
instance.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For a replica set, run the command on the primary. A majority of the
data-bearing members must be available.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For a sharded cluster, run the command on a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instance.
</p>
</li>
</ul>
</div>
</div>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand( {\n setFeatureCompatibilityVersion: \"5.0\",\n writeConcern: { wtimeout: 5000 }\n} )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>( <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">setFeatureCompatibilityVersion</span>: <span class="lg-highlight-string">"5.0"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">writeConcern</span>: <!-- -->{ <span class="lg-highlight-attr">wtimeout</span>: <span class="lg-highlight-number">5000</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">} )</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</section>
</section>
</section>
|
https://www.mongodb.com/docs/manual/core/authentication/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Authentication on Self-Managed Deployments
<a class="headerlink leafygreen-ui-1kepx47" href="#authentication-on-self-managed-deployments" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="authentication-on-self-managed-deployments">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#getting-started" target="_self">
<span>
Getting Started
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#authentication-mechanisms" target="_self">
<span>
Authentication Mechanisms
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#scram-authentication" target="_self">
<span>
SCRAM Authentication
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#x.509-certificate-authentication" target="_self">
<span>
x.509 Certificate Authentication
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#kerberos-authentication" target="_self">
<span>
Kerberos Authentication
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#ldap-proxy-authentication" target="_self">
<span>
LDAP Proxy Authentication
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#openid-connect-authentication" target="_self">
<span>
OpenID Connect Authentication
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#internal---membership-authentication" target="_self">
<span>
Internal / Membership Authentication
</span>
</a>
</li>
</ul>
</div>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 8.0, LDAP authentication and authorization is
deprecated. LDAP is available and will continue to operate without
changes throughout the lifetime of MongoDB 8. LDAP will be removed in a
future major release.
</p>
<p class="leafygreen-ui-1kp3ins">
For details, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/LDAP-deprecation/#std-label-ldap-deprecation">
LDAP Deprecation.
</a>
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Authentication is the process of verifying the identity of a client.
When access control (
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/authorization/#std-label-authorization">
authorization
</a>
) is
enabled, MongoDB requires all clients to authenticate themselves in
order to determine their access.
</p>
<p class="leafygreen-ui-1kp3ins">
Although authentication and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/authorization/#std-label-authorization">
authorization
</a>
are closely connected, authentication is distinct from authorization:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<strong>
Authentication
</strong>
verifies the identity of a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/security-users/#std-label-users">
user.
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<strong>
Authorization
</strong>
determines the verified user's access to resources
and operations.
</p>
</li>
</ul>
<a class="css-53dzkk" href="https://www.mongodb.com/docs/atlas/atlas-ui-authentication/">
<div class="css-z0l49d">
<div class="css-fw7ipj">
<svg aria-label="Cloud Icon" class="leafygreen-ui-1t2jgtk" fill="none" height="16" role="img" viewbox="0 0 16 16" width="16" xmlns="http://www.w3.org/2000/svg">
<path d="M12.571 8.143c0 1.775-.899 3.34-2.267 4.264l-.014.01a5.12 5.12 0 0 1-2.861.869H2.857a2.857 2.857 0 0 1-.545-5.663 5.144 5.144 0 0 1 10.26.52ZM13.821 8.143a6.38 6.38 0 0 1-2.358 4.96 3.429 3.429 0 1 0 2.17-6.506c.123.494.188 1.013.188 1.546Z" fill="currentColor">
</path>
</svg>
</div>
<p class="leafygreen-ui-1kp3ins">
You can
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/atlas-ui-authentication/" target="_self">
<span>
configure authentication through the UI
</span>
</a>
for deployments hosted in
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas?tck=docs_server" target="_self">
<span>
MongoDB Atlas.
</span>
</a>
</p>
</div>
</a>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Getting Started
<a class="headerlink leafygreen-ui-1kepx47" href="#getting-started" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="getting-started">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
To get started using access control, follow these tutorials:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/enable-authentication/#std-label-enable-access-control">
Enable Access Control on Self-Managed Deployments
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/create-users/#std-label-create-users">
Create a User on Self-Managed Deployments
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/authenticate-a-user/#std-label-authentication-auth-as-user">
Authenticate a User with Self-Managed Deployments
</a>
</p>
</li>
</ul>
<span class="leafygreen-ui-1qnjd6d" id="std-label-available-authentication-mechanisms">
</span>
<span class="leafygreen-ui-1qnjd6d" id="std-label-security-authentication-mechanisms">
</span>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Authentication Mechanisms
<a class="headerlink leafygreen-ui-1kepx47" href="#authentication-mechanisms" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="authentication-mechanisms">
</div>
</a>
</h2>
<span class="leafygreen-ui-1qnjd6d" id="std-label-authentication-mechanism-default">
</span>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
SCRAM Authentication
<a class="headerlink leafygreen-ui-1kepx47" href="#scram-authentication" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="scram-authentication">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/security-scram/">
Salted Challenge Response Authentication Mechanism (SCRAM)
</a>
is the default authentication mechanism for
MongoDB.
</p>
<p class="leafygreen-ui-1kp3ins">
For more information on SCRAM and MongoDB, see:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/security-scram/#std-label-authentication-scram">
SCRAM Authentication
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/configure-scram-client-authentication/#std-label-scram-client-authentication">
Use SCRAM to Authenticate Clients on Self-Managed Deployments
</a>
</p>
</li>
</ul>
<span class="leafygreen-ui-1qnjd6d" id="std-label-authentication-mechanism-x509">
</span>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
x.509 Certificate Authentication
<a class="headerlink leafygreen-ui-1kepx47" href="#x.509-certificate-authentication" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="x.509-certificate-authentication">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
MongoDB supports
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/security-x.509/">
x.509 certificate authentication
</a>
for client authentication and internal
authentication of the members of replica sets and sharded clusters.
x.509 certificate authentication requires a secure
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/configure-ssl/">
TLS/SSL
connection.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
To use MongoDB with x.509, you must use valid certificates generated and
signed by a certificate authority. The client x.509 certificates
must meet the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/security-x.509/#std-label-client-x509-certificates-requirements">
client certificate requirements.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
For more information on x.509 and MongoDB, see:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/security-x.509/#std-label-security-auth-x509">
x.509 Certificate Authentication
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/configure-x509-client-authentication/#std-label-x509-client-authentication">
Use x.509 Certificates to Authenticate Clients on Self-Managed Deployments
</a>
</p>
</li>
</ul>
<span class="leafygreen-ui-1qnjd6d" id="std-label-security-auth-kerberos">
</span>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Kerberos Authentication
<a class="headerlink leafygreen-ui-1kepx47" href="#kerberos-authentication" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="kerberos-authentication">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://www.mongodb.com/products/mongodb-enterprise-advanced?tck=docs_server" target="_self">
<span>
MongoDB Enterprise
</span>
</a>
supports
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/kerberos/#std-label-security-kerberos">
Kerberos Authentication
</a>
. Kerberos is
an industry standard authentication protocol for large client/server
systems that provides authentication using short-lived tokens that are
called tickets.
</p>
<p class="leafygreen-ui-1kp3ins">
To use MongoDB with Kerberos, you must have a properly configured
Kerberos deployment, configured
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/kerberos/#std-label-kerberos-service-principal">
Kerberos service principals
</a>
for MongoDB, and a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/kerberos/#std-label-kerberos-user-principal">
Kerberos user
principal
</a>
added to MongoDB.
</p>
<p class="leafygreen-ui-1kp3ins">
For more information on Kerberos and MongoDB, see:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/kerberos/#std-label-security-kerberos">
Kerberos Authentication
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/control-access-to-mongodb-with-kerberos-authentication/">
Configure Self-Managed MongoDB with Kerberos Authentication on Linux
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/control-access-to-mongodb-windows-with-kerberos-authentication/">
Configure Self-Managed MongoDB with Kerberos Authentication on Windows
</a>
</p>
</li>
</ul>
<span class="leafygreen-ui-1qnjd6d" id="std-label-security-auth-ldap">
</span>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
LDAP Proxy Authentication
<a class="headerlink leafygreen-ui-1kepx47" href="#ldap-proxy-authentication" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="ldap-proxy-authentication">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://www.mongodb.com/products/mongodb-enterprise-advanced?tck=docs_server" target="_self">
<span>
MongoDB Enterprise
</span>
</a>
and
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/atlas/database?tck=docs_server" target="_self">
<span>
MongoDB Atlas
</span>
</a>
support
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/security-ldap/#std-label-security-ldap">
LDAP Proxy Authentication
</a>
proxy
authentication through a Lightweight Directory Access Protocol (LDAP)
service.
</p>
<p class="leafygreen-ui-1kp3ins">
For more information on Kerberos and MongoDB, see:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/security-ldap/#std-label-security-ldap">
LDAP Proxy Authentication
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/configure-ldap-sasl-activedirectory/">
Authenticate Using Self-Managed SASL and LDAP with ActiveDirectory
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/configure-ldap-sasl-openldap/">
Authenticate Using Self-Managed SASL and LDAP with OpenLDAP
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/authenticate-nativeldap-activedirectory/">
Authenticate and Authorize Users Using Self-Managed Active Directory with Native LDAP
</a>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
These mechanisms allow MongoDB to integrate into your
existing authentication system.
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
OpenID Connect Authentication
<a class="headerlink leafygreen-ui-1kepx47" href="#openid-connect-authentication" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="openid-connect-authentication">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
MongoDB Enterprise supports OpenID Connect authentication. OpenID
Connect is an authentication layer built on top of OAuth2. You can use OpenID
Connect to configure single sign-on between your MongoDB database and a third-party
identity provider.
</p>
<p class="leafygreen-ui-1kp3ins">
For more information on OpenID Connect and MongoDB, see:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/security-oidc/#std-label-authentication-oidc">
OpenID Connect Authentication
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/configure-oidc/#std-label-configure-oidc">
Configure MongoDB with OpenID Connect
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://auth0.com/docs/authenticate/protocols/openid-connect-protocol" rel="noopener noreferrer">
<span>
OpenID Connect
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
</ul>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Internal / Membership Authentication
<a class="headerlink leafygreen-ui-1kepx47" href="#internal---membership-authentication" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="internal---membership-authentication">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
In addition to verifying the identity of a client, MongoDB can require
members of replica sets and sharded clusters to
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/security-internal-authentication/#std-label-inter-process-auth">
authenticate
their membership
</a>
to their respective
replica set or sharded cluster. See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/security-internal-authentication/#std-label-inter-process-auth">
Self-Managed Internal/Membership Authentication
</a>
for more information.
</p>
</section>
</section>
|
https://www.mongodb.com/docs/manual/core/replica-set-architectures/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Replica Set Deployment Architectures
<a class="headerlink leafygreen-ui-1kepx47" href="#replica-set-deployment-architectures" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="replica-set-deployment-architectures">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#strategies" target="_self">
<span>
Strategies
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#replica-set-naming" target="_self">
<span>
Replica Set Naming
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#deployment-patterns" target="_self">
<span>
Deployment Patterns
</span>
</a>
</li>
</ul>
</div>
<p class="leafygreen-ui-1kp3ins">
The architecture of a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-replica-set">
replica set
</a>
affects the
set's capacity and capability. This document provides strategies for
replica set deployments and describes common architectures.
</p>
<p class="leafygreen-ui-1kp3ins">
The standard replica set deployment for a production system is a
three-member replica set. These sets provide redundancy and fault
tolerance. Avoid complexity when possible, but let your application
requirements dictate the architecture.
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Outside of a rolling upgrade, all
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
members of
a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-replica-set">
replica set
</a>
should use the same major version of
MongoDB.
</p>
</div>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Strategies
<a class="headerlink leafygreen-ui-1kepx47" href="#strategies" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="strategies">
</div>
</a>
</h2>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Determine the Number of Members
<a class="headerlink leafygreen-ui-1kepx47" href="#determine-the-number-of-members" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="determine-the-number-of-members">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Add members in a replica set according to these strategies.
</p>
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Maximum Number of Voting Members
<a class="headerlink leafygreen-ui-1kepx47" href="#maximum-number-of-voting-members" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="maximum-number-of-voting-members">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
A replica set can have up to
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/limits/#mongodb-limit-Number-of-Members-of-a-Replica-Set">
50 members
</a>
, but only
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/limits/#mongodb-limit-Number-of-Voting-Members-of-a-Replica-Set">
7 voting members
</a>
. If the replica set already has 7 voting
members, additional members must be
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/replica-set-elections/#std-label-replica-set-non-voting-members">
non-voting members
<!-- -->
.
</a>
</p>
</section>
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Deploy an Odd Number of Members
<a class="headerlink leafygreen-ui-1kepx47" href="#deploy-an-odd-number-of-members" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="deploy-an-odd-number-of-members">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
Ensure that the replica set has an odd number of voting members. A
replica set can have up to 7 voting members. If you have an
<em>
even
</em>
number of voting members, deploy another data bearing voting member or,
if constraints prohibit against another data bearing voting member, an
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/replica-set-members/#std-label-replica-set-arbiters">
arbiter
<!-- -->
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
An
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-arbiter">
arbiter
</a>
does not store a copy of the data and
requires fewer resources. As a result, you may run an arbiter on an
application server or other shared resource. With no copy of the data,
it may be possible to place an arbiter into environments that you would
not place other members of the replica set. Consult your security
policies.
</p>
<div class="leafygreen-ui-1sjx7ru" role="note">
<h2 class="leafygreen-ui-29m78u">
Warning
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Avoid deploying more than one
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-arbiter">
arbiter
</a>
in a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-replica-set">
replica set
</a>
. See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/replica-set-arbiter/#std-label-rollbacks-multi-arbiters">
Concerns with Multiple Arbiters
<!-- -->
.
</a>
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To add an arbiter to an existing replica set:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Typically, if there are two or fewer data-bearing members in the
replica set, you might need to first set the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/setDefaultRWConcern/#std-label-set_global_default_write_concern">
cluster wide write
concern
</a>
for the replica set.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/setDefaultRWConcern/#std-label-set_global_default_write_concern">
cluster wide write concern
</a>
for more information on why you
might need to set the cluster wide write concern.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
You do not need to change the cluster wide write concern before starting
a new replica set with an arbiter.
</p>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/mongodb-defaults/#std-label-default-wc-formula">
Default write concern formula
</a>
</p>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-replica-set-architectures-consider-fault-tolerance">
</span>
</section>
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Consider Fault Tolerance
<a class="headerlink leafygreen-ui-1kepx47" href="#consider-fault-tolerance" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="consider-fault-tolerance">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
<em>
Fault tolerance
</em>
for a replica set is the number of members that can
become unavailable and still leave enough members in the set to elect a
primary. In other words, it is the difference between the number of
members in the set and the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/replSetGetStatus/#mongodb-data-replSetGetStatus.majorityVoteCount">
<code class="leafygreen-ui-1l06pbn">
majority
</code>
</a>
of voting members needed to
elect a primary. Without a primary, a replica set cannot accept write
operations. Fault tolerance is an effect of replica set size, but the
relationship is not direct. See the following table:
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:15%"/>
<col style="width:25%"/>
<col style="width:15%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Number of Members
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Majority Required to Elect a New Primary
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Fault Tolerance
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
3
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
2
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
1
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
4
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
3
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
1
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
5
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
3
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
2
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
6
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
4
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
2
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<p class="leafygreen-ui-1kp3ins">
Adding a member to the replica set does not
<em>
always
</em>
increase the
fault tolerance. However, in these cases, additional members can
provide support for dedicated functions, such as backups or reporting.
</p>
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/rs.status/#mongodb-method-rs.status">
<code class="leafygreen-ui-1l06pbn">
rs.status()
</code>
</a>
returns
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/replSetGetStatus/#mongodb-data-replSetGetStatus.majorityVoteCount">
<code class="leafygreen-ui-1l06pbn">
majorityVoteCount
</code>
</a>
for the replica set.
</p>
</section>
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Use Hidden and Delayed Members for Dedicated Functions
<a class="headerlink leafygreen-ui-1kepx47" href="#use-hidden-and-delayed-members-for-dedicated-functions" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="use-hidden-and-delayed-members-for-dedicated-functions">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
Add
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/replica-set-hidden-member/#std-label-replica-set-hidden-members">
hidden
</a>
or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/replica-set-delayed-member/#std-label-replica-set-delayed-members">
delayed
</a>
members to support dedicated functions,
such as backup or reporting.
</p>
</section>
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Read-Heavy Applications
<a class="headerlink leafygreen-ui-1kepx47" href="#read-heavy-applications" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="read-heavy-applications">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
A replica set is designed for high availability and redundancy. In most
cases secondary members operate under similar loads as the primary. You
should not direct reads to secondaries.
</p>
<p class="leafygreen-ui-1kp3ins">
If you have a read-heavy application, consider using
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/cluster-to-cluster-sync/current/#std-label-c2c-index" target="_self">
<span>
Cluster-to-Cluster Sync
</span>
</a>
to
replicate data to another cluster for reading.
</p>
<p class="leafygreen-ui-1kp3ins">
For more information on secondary read modes, see:
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/read-preference/#mongodb-readmode-secondary">
<code class="leafygreen-ui-1l06pbn">
secondary
</code>
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/read-preference/#mongodb-readmode-secondaryPreferred">
<code class="leafygreen-ui-1l06pbn">
secondaryPreferred
</code>
.
</a>
</p>
</section>
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Add Capacity Ahead of Demand
<a class="headerlink leafygreen-ui-1kepx47" href="#add-capacity-ahead-of-demand" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="add-capacity-ahead-of-demand">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
The existing members of a replica set must have spare capacity to
support adding a new member. Always add new members before the
current demand saturates the capacity of the set.
</p>
<span class="leafygreen-ui-1qnjd6d" id="std-label-determine-geographic-distribution">
</span>
</section>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Distribute Members Geographically
<a class="headerlink leafygreen-ui-1kepx47" href="#distribute-members-geographically" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="distribute-members-geographically">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
To protect your data in case of a data center failure, keep at least
one member in an alternate data center. If possible, use an odd number
of data centers, and choose a distribution of members that maximizes
the likelihood that even with a loss of a data center, the remaining
replica set members can form a majority or at minimum, provide a copy
of your data.
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Distributing replica set members across two data centers provides
benefit over a single data center. In a two data center
distribution,
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
If one of the data centers goes down, the data is still available
for reads unlike a single data center distribution.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
If the data center with a minority of the members goes down, the
replica set can still serve write operations as well as read
operations.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
However, if the data center with the majority of the members goes
down, the replica set becomes read-only.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
If possible, distribute members across at least three data centers.
For config server replica sets (CSRS), the best practice is to
distribute across three (or more depending on the number of members)
centers. If the cost of the third data center is prohibitive, one
distribution possibility is to evenly distribute the data bearing
members across the two data centers and store the remaining member
in the cloud if your company policy allows.
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To ensure that the members in your main data center be elected primary
before the members in the alternate data center, set the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-configuration/#mongodb-rsconf-rsconf.members-n-.priority">
<code class="leafygreen-ui-1l06pbn">
members[n].priority
</code>
</a>
of the members in the alternate data
center to be lower than that of the members in the primary data center.
</p>
<p class="leafygreen-ui-1kp3ins">
For more information, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/replica-set-architecture-geographically-distributed/">
Replica Sets Distributed Across Two or More Data Centers
</a>
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Target Operations with Tag Sets
<a class="headerlink leafygreen-ui-1kepx47" href="#target-operations-with-tag-sets" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="target-operations-with-tag-sets">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Use
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/configure-replica-set-tag-sets/#std-label-replica-set-configuration-tag-sets">
replica set tag sets
</a>
to
target read operations to specific members or to customize write
concern to request acknowledgment from specific members.
</p>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/data-center-awareness/">
Data Center Awareness
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/workload-isolation/">
Workload Isolation in MongoDB Deployments
</a>
</p>
</li>
</ul>
</div>
</div>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Use Journaling to Protect Against Power Failures
<a class="headerlink leafygreen-ui-1kepx47" href="#use-journaling-to-protect-against-power-failures" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="use-journaling-to-protect-against-power-failures">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
MongoDB enables
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/journaling/#std-label-journaling-internals">
journaling
</a>
by default.
Journaling protects against data loss in the event of service
interruptions, such as power failures and unexpected reboots.
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Hostnames
<a class="headerlink leafygreen-ui-1kepx47" href="#hostnames" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="hostnames">
</div>
</a>
</h3>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
To avoid configuration updates due to IP address changes, use DNS
hostnames instead of IP addresses. It is particularly important to
use a DNS hostname instead of an IP address when configuring replica
set members or sharded cluster members.
</p>
<p class="leafygreen-ui-1kp3ins">
Use hostnames instead of IP addresses to configure clusters across a
split network horizon. Starting in MongoDB 5.0, nodes that are only
configured with an IP address fail startup validation and do not start.
</p>
</div>
</div>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Replica Set Naming
<a class="headerlink leafygreen-ui-1kepx47" href="#replica-set-naming" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="replica-set-naming">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
If your application connects to more than one replica set, each set must
have a distinct name. Some drivers group replica set connections by
replica set name.
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Deployment Patterns
<a class="headerlink leafygreen-ui-1kepx47" href="#deployment-patterns" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="deployment-patterns">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The following documents describe common replica set deployment
patterns. Other patterns are possible and effective depending on
the application's requirements. If needed, combine features of each
architecture in your own deployment:
</p>
<dl>
<dt>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/replica-set-architecture-three-members/">
Three Member Replica Sets
</a>
</dt>
<dd class="css-1ufxuu7">
Three-member replica sets provide the minimum recommended
architecture for a replica set.
</dd>
<dt>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/replica-set-architecture-geographically-distributed/">
Replica Sets Distributed Across Two or More Data Centers
</a>
</dt>
<dd class="css-1ufxuu7">
Geographically distributed sets include members in multiple
locations to protect against facility-specific failures, such as
power outages.
</dd>
</dl>
</section>
</section>
|
https://www.mongodb.com/docs/manual/core/index-case-insensitive/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Case-Insensitive Indexes
<a class="headerlink leafygreen-ui-1kepx47" href="#case-insensitive-indexes" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="case-insensitive-indexes">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#command-syntax" target="_self">
<span>
Command Syntax
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#behavior" target="_self">
<span>
Behavior
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#examples" target="_self">
<span>
Examples
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#create-a-case-insensitive-index" target="_self">
<span>
Create a Case-Insensitive Index
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#case-insensitive-indexes-on-collections-with-a-default-collation" target="_self">
<span>
Case-Insensitive Indexes on Collections with a Default Collation
</span>
</a>
</li>
</ul>
</div>
<p class="leafygreen-ui-1kp3ins">
Case-insensitive indexes support queries that perform string comparisons
without regard for case. Case insensitivity is derived from
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/collation/#std-label-collation">
collation
<!-- -->
.
</a>
</p>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Case-insensitive indexes typically do not improve performance for
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/regex/#mongodb-query-op.-regex">
<code class="leafygreen-ui-1l06pbn">
$regex
</code>
</a>
queries. The
<code class="leafygreen-ui-1l06pbn">
$regex
</code>
implementation is not
collation-aware and cannot utilize case-insensitive indexes efficiently.
</p>
</div>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Command Syntax
<a class="headerlink leafygreen-ui-1kepx47" href="#command-syntax" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="command-syntax">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
You can create a case-insensitive index with
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.createIndex/#mongodb-method-db.collection.createIndex">
<code class="leafygreen-ui-1l06pbn">
db.collection.createIndex()
</code>
</a>
by specifying the
<code class="leafygreen-ui-1l06pbn">
collation
</code>
option:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.collection.createIndex(\n {\n <field>: <sortorder>\n },\n {\n collation:\n {\n locale : <locale>,\n strength : < 1 | 2 >\n }\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">collection</span>.<span class="lg-highlight-title lg-highlight-function">createIndex</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <<!-- -->field<!-- -->><!-- -->: <<!-- -->sortOrder<!-- -->></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">collation</span>:</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->locale <!-- -->: <<!-- -->locale<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->strength <!-- -->: <!-- -->< <span class="lg-highlight-number">1</span> <!-- -->| <span class="lg-highlight-number">2</span> <!-- -->></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->}</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To specify a collation for a case-insensitive index, include the
following fields in the
<code class="leafygreen-ui-1l06pbn">
collation
</code>
object:
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:10%"/>
<col style="width:20%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Field
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
locale
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Specifies language rules. For a list of available locales, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/collation-locales-defaults/#std-label-collation-languages-locales">
Supported Languages and Locales
<!-- -->
.
</a>
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
strength
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Determines comparison rules. A
<code class="leafygreen-ui-1l06pbn">
strength
</code>
value of 1 or 2
indicates case-insensitive collation.
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<p class="leafygreen-ui-1kp3ins">
For additional collation fields, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/collation/#std-label-collation-document-fields">
Collation
<!-- -->
.
</a>
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Behavior
<a class="headerlink leafygreen-ui-1kepx47" href="#behavior" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="behavior">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
To use an index that specifies a collation, query and sort operations
must specify the same collation as the index. If a collection has
defined a collation, all queries and indexes inherit that collation
unless they explicitly specify a different collation.
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Examples
<a class="headerlink leafygreen-ui-1kepx47" href="#examples" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="examples">
</div>
</a>
</h2>
<span class="leafygreen-ui-1qnjd6d" id="std-label-no-default-collation-example">
</span>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Create a Case-Insensitive Index
<a class="headerlink leafygreen-ui-1kepx47" href="#create-a-case-insensitive-index" title="Permalink to this heading">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="create-a-case-insensitive-index">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
To use a case-insensitive index on a collection with no default
collation, create an index with a collation and set the
<code class="leafygreen-ui-1l06pbn">
strength
</code>
parameter to
<code class="leafygreen-ui-1l06pbn">
1
</code>
or
<code class="leafygreen-ui-1l06pbn">
2
</code>
(see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/collation/#std-label-collation-document-fields">
Collation
</a>
for a detailed
description of the
<code class="leafygreen-ui-1l06pbn">
strength
</code>
parameter). You must specify the same
collation at the query level in order to use the index-level collation.
</p>
<p class="leafygreen-ui-1kp3ins">
The following example creates a collection with no default collation,
then adds an index on the
<code class="leafygreen-ui-1l06pbn">
type
</code>
field with a case-insensitive
collation.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.createCollection(\"fruit\")\n\ndb.fruit.createIndex(\n { type: 1 },\n { collation: { locale: 'en', strength: 2 } }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">createCollection</span>(<span class="lg-highlight-string">"fruit"</span>)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">fruit</span>.<span class="lg-highlight-title lg-highlight-function">createIndex</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">type</span>: <span class="lg-highlight-number">1</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">collation</span>: <!-- -->{ <span class="lg-highlight-attr">locale</span>: <span class="lg-highlight-string">'en'</span>, <span class="lg-highlight-attr">strength</span>: <span class="lg-highlight-number">2</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
To use the index, queries must specify the same collation.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.fruit.insertMany( [\n { type: \"apple\" },\n { type: \"Apple\" },\n { type: \"APPLE\" }\n] )\n\ndb.fruit.find( { type: \"apple\" } ) // does not use index, finds one result\n\ndb.fruit.find( { type: \"apple\" } ).collation( { locale: 'en', strength: 2 } )\n// uses the index, finds three results\n\ndb.fruit.find( { type: \"apple\" } ).collation( { locale: 'en', strength: 1 } )\n// does not use the index, finds three results","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">fruit</span>.<span class="lg-highlight-title lg-highlight-function">insertMany</span>( <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">type</span>: <span class="lg-highlight-string">"apple"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">type</span>: <span class="lg-highlight-string">"Apple"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">type</span>: <span class="lg-highlight-string">"APPLE"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">] )</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">fruit</span>.<span class="lg-highlight-title lg-highlight-function">find</span>( <!-- -->{ <span class="lg-highlight-attr">type</span>: <span class="lg-highlight-string">"apple"</span> } ) <span class="lg-highlight-comment">//</span><span class="lg-highlight-comment"> does not use </span><span class="lg-highlight-comment">index, finds one result</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">fruit</span>.<span class="lg-highlight-title lg-highlight-function">find</span>( <!-- -->{ <span class="lg-highlight-attr">type</span>: <span class="lg-highlight-string">"apple"</span> } ).<span class="lg-highlight-title lg-highlight-function">collation</span>( <!-- -->{ <span class="lg-highlight-attr">locale</span>: <span class="lg-highlight-string">'en'</span>, <span class="lg-highlight-attr">strength</span>: <span class="lg-highlight-number">2</span> } )</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-comment">// uses the index, finds three results</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">fruit</span>.<span class="lg-highlight-title lg-highlight-function">find</span>( <!-- -->{ <span class="lg-highlight-attr">type</span>: <span class="lg-highlight-string">"apple"</span> } ).<span class="lg-highlight-title lg-highlight-function">collation</span>( <!-- -->{ <span class="lg-highlight-attr">locale</span>: <span class="lg-highlight-string">'en'</span>, <span class="lg-highlight-attr">strength</span>: <span class="lg-highlight-number">1</span> } )</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-comment">//</span><span class="lg-highlight-comment"> does not use </span><span class="lg-highlight-comment">the index, finds three results</span></td></tr></tbody></table></code></pre>
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</div>
</div>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-default-collation-example">
</span>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Case-Insensitive Indexes on Collections with a Default Collation
<a class="headerlink leafygreen-ui-1kepx47" href="#case-insensitive-indexes-on-collections-with-a-default-collation" title="Permalink to this heading">
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<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
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</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
When you create a collection with a default collation, all the indexes
you create subsequently inherit that collation unless you specify a
different collation. All queries which do not
specify a different collation also inherit the default collation.
</p>
<p class="leafygreen-ui-1kp3ins">
The following example creates a collection called
<code class="leafygreen-ui-1l06pbn">
names
</code>
with a
default collation, then creates an index on the
<code class="leafygreen-ui-1l06pbn">
first_name
</code>
field.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.createCollection(\"names\", { collation: { locale: 'en_US', strength: 2 } } )\n\ndb.names.createIndex( { first_name: 1 } ) // inherits the default collation","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">createCollection</span>(<span class="lg-highlight-string">"names"</span>, <!-- -->{ <span class="lg-highlight-attr">collation</span>: <!-- -->{ <span class="lg-highlight-attr">locale</span>: <span class="lg-highlight-string">'en_US'</span>, <span class="lg-highlight-attr">strength</span>: <span class="lg-highlight-number">2</span> } } )</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">names</span>.<span class="lg-highlight-title lg-highlight-function">createIndex</span>( <!-- -->{ <span class="lg-highlight-attr">first_name</span>: <span class="lg-highlight-number">1</span> } ) <span class="lg-highlight-comment">//</span><span class="lg-highlight-comment"> inherits the default </span><span class="lg-highlight-comment">collation</span></td></tr></tbody></table></code></pre>
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</svg>
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</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Insert a small collection of names:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.names.insertMany( [\n { first_name: \"Betsy\" },\n { first_name: \"BETSY\"},\n { first_name: \"betsy\"}\n] )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">names</span>.<span class="lg-highlight-title lg-highlight-function">insertMany</span>( <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">first_name</span>: <span class="lg-highlight-string">"Betsy"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">first_name</span>: <span class="lg-highlight-string">"BETSY"</span>}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">first_name</span>: <span class="lg-highlight-string">"betsy"</span>}</td></tr><tr class=""><td class="leafygreen-ui-7razhx">] )</td></tr></tbody></table></code></pre>
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Queries on this collection use the specified collation by default,
and if possible use the index as well.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.names.find( { first_name: \"betsy\" } )\n// inherits the default collation: { collation: { locale: 'en_US', strength: 2 } }\n// finds three results","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">names</span>.<span class="lg-highlight-title lg-highlight-function">find</span>( <!-- -->{ <span class="lg-highlight-attr">first_name</span>: <span class="lg-highlight-string">"betsy"</span> } )</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-comment">//</span><span class="lg-highlight-comment"> inherits the default </span><span class="lg-highlight-comment">collation: { collation: { locale: 'en_US', strength: 2 } }</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-comment">// finds three results</span></td></tr></tbody></table></code></pre>
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The above operation uses the collection's default collation and finds
all three documents. It uses the index on the
<code class="leafygreen-ui-1l06pbn">
first_name
</code>
field for
better performance.
</p>
<p class="leafygreen-ui-1kp3ins">
It is still possible to perform case sensitive searches on this
collection by specifying a different collation in the query:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.names.find( { first_name: \"betsy\" } ).collation( { locale: 'en_US' } )\n// does not use the collection's default collation, finds one result","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">names</span>.<span class="lg-highlight-title lg-highlight-function">find</span>( <!-- -->{ <span class="lg-highlight-attr">first_name</span>: <span class="lg-highlight-string">"betsy"</span> } ).<span class="lg-highlight-title lg-highlight-function">collation</span>( <!-- -->{ <span class="lg-highlight-attr">locale</span>: <span class="lg-highlight-string">'en_US'</span> } )</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-comment">//</span><span class="lg-highlight-comment"> does not use </span><span class="lg-highlight-comment">the collection's default collation, finds one result</span></td></tr></tbody></table></code></pre>
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The above operation finds only one document, because it uses a
collation with no
<code class="leafygreen-ui-1l06pbn">
strength
</code>
value specified. It does not use the
collection's default collation or the index.
</p>
</section>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/operator/aggregation/bitOr/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
$bitOr (aggregation)
<a class="headerlink leafygreen-ui-1kepx47" href="#-bitor--aggregation-" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
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<div class="css-1btu0w3 evvkmar0" id="-bitor--aggregation-">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#definition" target="_self">
<span>
Definition
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#syntax" target="_self">
<span>
Syntax
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#behavior" target="_self">
<span>
Behavior
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#examples" target="_self">
<span>
Examples
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#learn-more" target="_self">
<span>
Learn More
</span>
</a>
</li>
</ul>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Definition
<a class="headerlink leafygreen-ui-1kepx47" href="#definition" title="Permalink to this heading">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="definition">
</div>
</a>
</h2>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
6.3
</em>
.
</p>
</div>
<dl class="expression">
<dt>
<code class="leafygreen-ui-1l06pbn">
$bitOr
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-expression-exp.-bitOr" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-expression-exp.-bitOr">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Returns the result of a bitwise
<code class="leafygreen-ui-1l06pbn">
or
</code>
operation on an array of
<code class="leafygreen-ui-1l06pbn">
int
</code>
and
<code class="leafygreen-ui-1l06pbn">
long
</code>
values.
</p>
</dd>
</dl>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Syntax
<a class="headerlink leafygreen-ui-1kepx47" href="#syntax" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="syntax">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
$bitOr
</code>
operator has the following syntax:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ $bitOr: [ <expression1>, <expression2>, ... ] }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-attr">$bitOr</span>: <!-- -->[ <<!-- -->expression1<!-- -->><!-- -->,<!-- --> <!-- --><<!-- -->expression2<!-- -->><!-- -->,<!-- --> <!-- -->...<!-- --> ] }</td></tr></tbody></table></code></pre>
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</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Behavior
<a class="headerlink leafygreen-ui-1kepx47" href="#behavior" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="behavior">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
If the operands include both integers and long values, MongoDB sign-extends the
calculated integer result and returns a long value. Otherwise, if the operands
include only integers or only longs, MongoDB returns results with the
corresponding value type.
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
All numbers in
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
are doubles, not integers. To
specify integers in
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
, use the
<code class="leafygreen-ui-1l06pbn">
NumberInt()
</code>
or the
<code class="leafygreen-ui-1l06pbn">
NumberLong()
</code>
constructor. To learn more, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/data-types/#std-label-shell-type-int" target="_self">
<span>
Int32
</span>
</a>
or
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/data-types/#std-label-shell-type-long" target="_self">
<span>
Long
<!-- -->
.
</span>
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
To learn how your MongoDB driver handles numeric values, refer to your
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/drivers/" target="_self">
<span>
driver's documentation
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
If any arguments in the array are of a different data type such as a string,
double, or decimal, MongoDB returns an error.
</p>
<p class="leafygreen-ui-1kp3ins">
If the argument is an empty array, the operation returns
<code class="leafygreen-ui-1l06pbn">
NumberInt(0)
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
If any of the arguments in the array equate to
<code class="leafygreen-ui-1l06pbn">
null
</code>
, the operation returns
<code class="leafygreen-ui-1l06pbn">
null
</code>
.
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Examples
<a class="headerlink leafygreen-ui-1kepx47" href="#examples" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="examples">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The examples on this page use the
<code class="leafygreen-ui-1l06pbn">
switches
</code>
collection, which contains the
following documents:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.switches.insertMany( [\n { _id: 0, a: NumberInt(0), b: NumberInt(127) },\n { _id: 1, a: NumberInt(2), b: NumberInt(3) },\n { _id: 2, a: NumberInt(3), b: NumberInt(5) }\n] )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">switches</span>.<span class="lg-highlight-title lg-highlight-function">insertMany</span>( <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">0</span>, <span class="lg-highlight-attr">a</span>: <span class="lg-highlight-title lg-highlight-class">NumberInt</span>(<span class="lg-highlight-number">0</span>)<!-- -->, <span class="lg-highlight-attr">b</span>: <span class="lg-highlight-title lg-highlight-class">NumberInt</span>(<span class="lg-highlight-number">127</span>) }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-attr">a</span>: <span class="lg-highlight-title lg-highlight-class">NumberInt</span>(<span class="lg-highlight-number">2</span>)<!-- -->, <span class="lg-highlight-attr">b</span>: <span class="lg-highlight-title lg-highlight-class">NumberInt</span>(<span class="lg-highlight-number">3</span>) }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-attr">a</span>: <span class="lg-highlight-title lg-highlight-class">NumberInt</span>(<span class="lg-highlight-number">3</span>)<!-- -->, <span class="lg-highlight-attr">b</span>: <span class="lg-highlight-title lg-highlight-class">NumberInt</span>(<span class="lg-highlight-number">5</span>) }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">] )</td></tr></tbody></table></code></pre>
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<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Bitwise
<code class="leafygreen-ui-1l06pbn">
OR
</code>
with Two Integers
<a class="headerlink leafygreen-ui-1kepx47" href="#bitwise-or-with-two-integers" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
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<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="bitwise-or-with-two-integers">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The following aggregation uses the
<code class="leafygreen-ui-1l06pbn">
$bitOr
</code>
operator in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/project/#mongodb-pipeline-pipe.-project">
<code class="leafygreen-ui-1l06pbn">
$project
</code>
</a>
stage:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.switches.aggregate( [\n {\n $project: {\n result: {\n $bitOr: [ \"$a\", \"$b\" ]\n }\n }\n }\n])","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">switches</span>.<span class="lg-highlight-title lg-highlight-function">aggregate</span>( <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">$project</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">result</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">$bitOr</span>: <!-- -->[ <span class="lg-highlight-string">"$a"</span>, <span class="lg-highlight-string">"$b"</span> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">])</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The operation returns the following results:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":" [\n { _id: 0, result: 127 },\n { _id: 1, result: 3 },\n { _id: 2, result: 7 }\n ]","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">0</span>, <span class="lg-highlight-attr">result</span>: <span class="lg-highlight-number">127</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-attr">result</span>: <span class="lg-highlight-number">3</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-attr">result</span>: <span class="lg-highlight-number">7</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Bitwise
<code class="leafygreen-ui-1l06pbn">
OR
</code>
with a Long and Integer
<a class="headerlink leafygreen-ui-1kepx47" href="#bitwise-or-with-a-long-and-integer" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="bitwise-or-with-a-long-and-integer">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The following aggregation uses the
<code class="leafygreen-ui-1l06pbn">
$bitOr
</code>
operator in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/project/#mongodb-pipeline-pipe.-project">
<code class="leafygreen-ui-1l06pbn">
$project
</code>
</a>
stage:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.switches.aggregate( [\n {\n $project: {\n result: {\n $bitOr: [ \"$a\", NumberLong(\"63\") ]\n }\n }\n }\n])","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">switches</span>.<span class="lg-highlight-title lg-highlight-function">aggregate</span>( <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">$project</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">result</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">$bitOr</span>: <!-- -->[ <span class="lg-highlight-string">"$a"</span>, <span class="lg-highlight-title lg-highlight-class">NumberLong</span>(<span class="lg-highlight-string">"63"</span>) ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">])</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The operation returns the following results:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":" [\n { _id: 0, result: Long(\"0\") },\n { _id: 1, result: Long(\"2\") },\n { _id: 2, result: Long(\"3\") }\n ]","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">0</span>, <span class="lg-highlight-attr">result</span>: <span class="lg-highlight-title lg-highlight-class">Long</span>(<span class="lg-highlight-string">"0"</span>) }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-attr">result</span>: <span class="lg-highlight-title lg-highlight-class">Long</span>(<span class="lg-highlight-string">"2"</span>) }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-attr">result</span>: <span class="lg-highlight-title lg-highlight-class">Long</span>(<span class="lg-highlight-string">"3"</span>) }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Learn More
<a class="headerlink leafygreen-ui-1kepx47" href="#learn-more" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="learn-more">
</div>
</a>
</h2>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/#std-label-aggregation-pipeline-operators">
Aggregation Operators
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/update/bit/#std-label-update-bit">
$bit
</a>
</p>
</li>
</ul>
</section>
</section>
|
https://www.mongodb.com/docs/manual/core/csfle/fundamentals/manage-keys/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Encryption Key Management
<a class="headerlink leafygreen-ui-1kepx47" href="#encryption-key-management" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="encryption-key-management">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#encryption-components" target="_self">
<span>
Encryption Components
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#supported-key-management-services" target="_self">
<span>
Supported Key Management Services
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#manage-a-data-encryption-key-s-alternate-name" target="_self">
<span>
Manage a Data Encryption Key's Alternate Name
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#create-a-data-encryption-key-with-an-alternate-name" target="_self">
<span>
Create a Data Encryption Key with an Alternate Name
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#use-key-alternate-names-in-an-automatic-encryption-schema" target="_self">
<span>
Use Key Alternate Names in an Automatic Encryption Schema
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#procedure--rotate-encryption-keys-using-mongo-shell" target="_self">
<span>
Procedure: Rotate Encryption Keys Using Mongo Shell
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#delete-a-data-encryption-key" target="_self">
<span>
Delete a Data Encryption Key
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#learn-more" target="_self">
<span>
Learn More
</span>
</a>
</li>
</ul>
</div>
<p class="leafygreen-ui-1kp3ins">
In this guide, you can learn how to manage your encryption keys with a
Key Management System (
<span class="leafygreen-ui-vm4wms" tabindex="0">
KMS
</span>
) in your Client-Side Field Level Encryption (CSFLE)-enabled
application.
</p>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Encryption Components
<a class="headerlink leafygreen-ui-1kepx47" href="#encryption-components" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="encryption-components">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
MongoDB uses the following components to perform Client-Side Field Level Encryption:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Data Encryption Keys (
<span class="leafygreen-ui-vm4wms" tabindex="0">
DEK
</span>
)s
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Customer Master Keys (
<span class="leafygreen-ui-vm4wms" tabindex="0">
CMK
</span>
)s
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Key Vault collections
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Key Management System (
<span class="leafygreen-ui-vm4wms" tabindex="0">
KMS
</span>
)
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
To learn more about keys and key vaults, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/queryable-encryption/fundamentals/keys-key-vaults/#std-label-qe-reference-keys-key-vaults">
Encryption Keys and Key Vaults
<!-- -->
.
</a>
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Supported Key Management Services
<a class="headerlink leafygreen-ui-1kepx47" href="#supported-key-management-services" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="supported-key-management-services">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
Client-Side Field Level Encryption supports the following Key Management System providers:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Amazon Web Services KMS
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Azure Key Vault
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Google Cloud KMS
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Any KMIP Compliant Key Management System
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Local Key Provider
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
The default KMIP protocol version is 1.2. You can configure MongoDB to
use KMIP version 1.0 or 1.1 in the MongoDB server
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#std-label-configuration-options">
configuration
file
<!-- -->
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
To learn more about these providers, including diagrams that show how
your application uses them to perform Client-Side Field Level Encryption, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/queryable-encryption/fundamentals/kms-providers/#std-label-qe-fundamentals-kms-providers">
KMS Providers
<!-- -->
.
</a>
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Manage a Data Encryption Key's Alternate Name
<a class="headerlink leafygreen-ui-1kepx47" href="#manage-a-data-encryption-key-s-alternate-name" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="manage-a-data-encryption-key-s-alternate-name">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
You can assign a Data Encryption Key alternate names to make the
key easier to reference. Assigning alternate names allows you to perform
the following actions:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Reference a
<span class="leafygreen-ui-vm4wms" tabindex="0">
DEK
</span>
by different means than the
<code class="leafygreen-ui-1l06pbn">
_id
</code>
field.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Dynamically assign DEKs at runtime.
</p>
</li>
</ul>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Create a Data Encryption Key with an Alternate Name
<a class="headerlink leafygreen-ui-1kepx47" href="#create-a-data-encryption-key-with-an-alternate-name" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="create-a-data-encryption-key-with-an-alternate-name">
</div>
</a>
</h3>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
Prerequisite
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Prior to adding a new key alternate name, you must create a partial
unique index on the
<code class="leafygreen-ui-1l06pbn">
keyAltNames
</code>
field. This index should have a
<code class="leafygreen-ui-1l06pbn">
partialFilterExpression
</code>
for documents where
<code class="leafygreen-ui-1l06pbn">
keyAltNames
</code>
exists.
</p>
<p class="leafygreen-ui-1kp3ins">
Client-Side Field Level Encryption depends on server-enforced uniqueness of key alternate names.
</p>
<p class="leafygreen-ui-1kp3ins">
To learn how to create a partial index, refer to
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/index-partial/#std-label-index-type-partial">
Partial Indexes
<!-- -->
.
</a>
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The following example creates a Data Encryption Key with an alternate name.
Select the tab that corresponds to your driver language:
</p>
<div aria-hidden="true">
</div>
<div class="leafygreen-ui-f2qztv" data-lgid="lg-tabs">
<div class="leafygreen-ui-jp7pox" id="tabs-8">
<div aria-label="Tabs to describe usage of drivers" aria-orientation="horizontal" class="leafygreen-ui-m8p1vb lg-ui-tab-list-0000" data-lgid="lg-tabs-tab_list" role="tablist">
<button aria-controls="_w9jqj4tzk" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_75hyvpwvc" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
MongoDB Shell
</div>
</button>
<button aria-controls="_jw0cjs8d1" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_52xfexs8g" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
C#
</div>
</button>
<button aria-controls="_ufyycl5mj" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_ww7u7cdel" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Go
</div>
</button>
<button aria-controls="_qoqmblclv" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_1rgmwybhg" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Java (Sync)
</div>
</button>
<button aria-controls="_xqq33sq7f" aria-selected="true" class="leafygreen-ui-1l773z1" data-text="" id="_g5uqfhy32" name="" role="tab" tabindex="0">
<div class="leafygreen-ui-1nxuzmg">
Node.js
</div>
</button>
<button aria-controls="_4g28mm3ds" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_piyjtu6ff" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Python
</div>
</button>
</div>
<div class="leafygreen-ui-ov1ktg">
<div class="leafygreen-ui-1sg2lsz">
</div>
</div>
</div>
<div class="lg-ui-tab-panels-0000" data-lgid="lg-tabs-tab_panels">
<div>
<div aria-labelledby="_5p08mgrqo" class="leafygreen-ui-38lglc" id="_evtrrpyj7" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"var autoEncryptionOpts = {\n keyVaultNamespace: keyVaultNamespace,\n kmsProviders: kmsProviders,\n};\nvar encryptedClient = Mongo(\n connectionString,\n autoEncryptionOpts\n);\nvar clientEncryption = encryptedClient.getClientEncryption();\nvar masterKey = {\n \"<your>\": \"<your>\",\n};\nvar keyVault = encryptedClient.getKeyVault();\nvar keyId = keyVault.createKey(\"aws\", masterKey, [\"<your>\"]);\n","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> autoEncryptionOpts <!-- -->= <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">keyVaultNamespace</span>: <!-- -->keyVaultNamespace<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">kmsProviders</span>: <!-- -->kmsProviders<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> encryptedClient <!-- -->= <span class="lg-highlight-title lg-highlight-class">Mongo</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->connectionString<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->autoEncryptionOpts</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> clientEncryption <!-- -->= <!-- -->encryptedClient.<span class="lg-highlight-title lg-highlight-function">getClientEncryption</span>(<!-- -->)<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> masterKey <!-- -->= <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"<Your dataKeyOpts Key>"</span>: <span class="lg-highlight-string">"<Your dataKeyOpts Value>"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> keyVault <!-- -->= <!-- -->encryptedClient.<span class="lg-highlight-title lg-highlight-function">getKeyVault</span>(<!-- -->)<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> keyId <!-- -->= <!-- -->keyVault.<span class="lg-highlight-title lg-highlight-function">createKey</span>(<span class="lg-highlight-string">"aws"</span>, <!-- -->masterKey<!-- -->, <!-- -->[<span class="lg-highlight-string">"<Your Key Alt Name>"</span>])<!-- -->;</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-hcrzu6" data-testid="leafygreen-code-panel">
<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-23-menu" aria-describedby="select-23-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-24" type="button" value="Node.js">
<div class="leafygreen-ui-v038xi">
</div>
<div class="leafygreen-ui-16tr4y">
<svg aria-hidden="true" class="leafygreen-ui-18si895" fill="none" role="presentation" viewbox="0 0 30 30" xmlns="http://www.w3.org/2000/svg">
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> keyVaultClient = <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">MongoClient</span>(connectionString);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> clientEncryptionOptions = <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">ClientEncryptionOptions</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">keyVaultClient</span>: keyVaultClient,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">keyVaultNamespace</span>: keyVaultNamespace,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">kmsProviders</span>: kmsProviders);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> clientEncryption = <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">ClientEncryption</span>(clientEncryptionOptions);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> dataKeyOptions = <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">DataKeyOptions</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">alternateKeyNames</span>: <span class="lg-highlight-keyword">new</span>[] { <span class="lg-highlight-string">"<Your Key Alt Name>"</span> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">masterKey</span>: <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">BsonDocument</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { <span class="lg-highlight-string">"<Your dataKeyOpts Keys>"</span>, <span class="lg-highlight-string">"<Your dataKeyOpts Values>"</span> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> });</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> dataKeyId = clientEncryption.<span class="lg-highlight-title lg-highlight-class">CreateDataKey</span>(<span class="lg-highlight-string">"<Your KMS Provider>"</span>, dataKeyOptions, <span class="lg-highlight-title lg-highlight-class">CancellationToken</span>.<span class="lg-highlight-property">None</span>);</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">clientEncryptionOpts <!-- -->:<!-- -->= options.<span class="lg-highlight-title lg-highlight-class">ClientEncryption</span>().<span class="lg-highlight-title lg-highlight-class">SetKeyVaultNamespace</span>(<span class="lg-highlight-title lg-highlight-class">KeyVaultNamespace</span>).<span class="lg-highlight-title lg-highlight-class">SetKmsProviders</span>(kmsProviders)</td></tr><tr class=""><td class="leafygreen-ui-7razhx">keyVaultClient<!-- -->, <!-- -->err := mongo.<span class="lg-highlight-title lg-highlight-class">Connect</span>(context.<span class="lg-highlight-title lg-highlight-function">TODO</span>(), options.<span class="lg-highlight-title lg-highlight-class">Client</span>().<span class="lg-highlight-title lg-highlight-class">ApplyURI</span>(<span class="lg-highlight-variable lg-highlight-constant">URI</span>))</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">if</span> err != nil {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">return</span> fmt.<span class="lg-highlight-title lg-highlight-class">Errorf</span>(<span class="lg-highlight-string">"Client connect error %v"</span>, err)</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr><tr class=""><td class="leafygreen-ui-7razhx">clientEnc<!-- -->, <!-- -->err := mongo.<span class="lg-highlight-title lg-highlight-class">NewClientEncryption</span>(keyVaultClient, clientEncryptionOpts)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">if</span> err != nil {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">return</span> fmt.<span class="lg-highlight-title lg-highlight-class">Errorf</span>(<span class="lg-highlight-string">"NewClientEncryption error %v"</span>, err)</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr><tr class=""><td class="leafygreen-ui-7razhx">defer <span class="lg-highlight-title lg-highlight-function">func</span>() {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> _ = clientEnc.<span class="lg-highlight-title lg-highlight-class">Close</span>(context.<span class="lg-highlight-title lg-highlight-function">TODO</span>())</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}()</td></tr><tr class=""><td class="leafygreen-ui-7razhx">masterKey <!-- -->:<!-- -->= map[string]interface{}{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"<Your dataKeyOpts Key>"</span>: <span class="lg-highlight-string">"<Your dataKeyOpts Value>"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr><tr class=""><td class="leafygreen-ui-7razhx">dataKeyOpts <!-- -->:<!-- -->= options.<span class="lg-highlight-title lg-highlight-class">DataKey</span>().</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-class">SetMasterKey</span>(masterKey).</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-class">SetKeyAltNames</span>([]string{<span class="lg-highlight-string">"<Your Key Alt Name>"</span>})</td></tr><tr class=""><td class="leafygreen-ui-7razhx">dataKeyID<!-- -->, <!-- -->err := clientEnc.<span class="lg-highlight-title lg-highlight-class">CreateDataKey</span>(context.<span class="lg-highlight-title lg-highlight-function">TODO</span>(), provider, dataKeyOpts)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">if</span> err != nil {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">return</span> fmt.<span class="lg-highlight-title lg-highlight-class">Errorf</span>(<span class="lg-highlight-string">"create data key error %v"</span>, err)</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">ClientEncryptionSettings</span> clientEncryptionSettings = <span class="lg-highlight-title lg-highlight-class">ClientEncryptionSettings</span>.<span class="lg-highlight-title lg-highlight-function">builder</span>()</td></tr><tr class=""><td class="leafygreen-ui-7razhx">.<span class="lg-highlight-title lg-highlight-function">keyVaultMongoClientSettings</span>(<span class="lg-highlight-title lg-highlight-class">MongoClientSettings</span>.<span class="lg-highlight-title lg-highlight-function">builder</span>()</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">applyConnectionString</span>(<span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">ConnectionString</span>(connectionString))</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">build</span>())</td></tr><tr class=""><td class="leafygreen-ui-7razhx">.<span class="lg-highlight-title lg-highlight-function">keyVaultNamespace</span>(keyVaultNamespace)</td></tr><tr class=""><td class="leafygreen-ui-7razhx">.<span class="lg-highlight-title lg-highlight-function">kmsProviders</span>(kmsProviders)</td></tr><tr class=""><td class="leafygreen-ui-7razhx">.<span class="lg-highlight-title lg-highlight-function">build</span>();</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">ClientEncryption</span> clientEncryption = <span class="lg-highlight-title lg-highlight-class">ClientEncryptions</span>.<span class="lg-highlight-title lg-highlight-function">create</span>(clientEncryptionSettings);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">BsonDocument</span> masterKeyProperties = <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">BsonDocument</span>();</td></tr><tr class=""><td class="leafygreen-ui-7razhx">masterKeyProperties.<span class="lg-highlight-title lg-highlight-function">put</span>(<span class="lg-highlight-string">"provider"</span>, <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">BsonString</span>(<span class="lg-highlight-string">"<Your KMS Provider>"</span>));</td></tr><tr class=""><td class="leafygreen-ui-7razhx">masterKeyProperties.<span class="lg-highlight-title lg-highlight-function">put</span>(<span class="lg-highlight-string">"<Your dataKeyOpts Key>"</span>, <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">BsonString</span>(<span class="lg-highlight-string">"<Your dataKeyOpts Value>"</span>));</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">List</span> keyAltNames = <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">ArrayList</span><<span class="lg-highlight-title lg-highlight-class">String</span>>();</td></tr><tr class=""><td class="leafygreen-ui-7razhx">keyAltNames.<span class="lg-highlight-title lg-highlight-function">add</span>(<span class="lg-highlight-string">"<Your Key Alt Name>"</span>);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">BsonBinary</span> dataKeyId = clientEncryption.<span class="lg-highlight-title lg-highlight-function">createDataKey</span>(kmsProvider, <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">DataKeyOptions</span>().<span class="lg-highlight-title lg-highlight-function">masterKey</span>(masterKeyProperties).<span class="lg-highlight-title lg-highlight-function">keyAltNames</span>(keyAltNames));</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">const</span> encryption <!-- -->= <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">ClientEncryption</span>(<!-- -->client<!-- -->, <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->keyVaultNamespace<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->kmsProviders<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx">})<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">const</span> masterKey <!-- -->= <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"<Your dataKeyOpts Key>"</span>: <span class="lg-highlight-string">"<Your dataKeyOpts Value>"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">const</span> key <!-- -->= <span class="lg-highlight-keyword">await</span> encryption.<span class="lg-highlight-title lg-highlight-function">createDataKey</span>(<!-- -->provider<!-- -->, <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">masterKey</span>: <!-- -->masterKey<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">keyAltNames</span>: <!-- -->[<span class="lg-highlight-string">"<Your Key Alt Name>"</span>]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx">})<!-- -->;</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">client = <span class="lg-highlight-title lg-highlight-class">MongoClient</span>(connection_string)</td></tr><tr class=""><td class="leafygreen-ui-7razhx">client_encryption = <span class="lg-highlight-title lg-highlight-class">ClientEncryption</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> kms_providers,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> key_vault_namespace,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> client,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-class">CodecOptions</span>(uuid_representation=<span class="lg-highlight-variable lg-highlight-constant">STANDARD</span>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr><tr class=""><td class="leafygreen-ui-7razhx">master_key={ <span class="lg-highlight-string">"<Your dataKeyOpts Key>"</span> : <span class="lg-highlight-string">"<Your dataKeyOpts Value>"</span>}</td></tr><tr class=""><td class="leafygreen-ui-7razhx">data_key_id = client_encryption.<span class="lg-highlight-title lg-highlight-function">create_data_key</span>(provider, master_key, key_alt_names=[<span class="lg-highlight-string">"<Your Key Alt Name>"</span>])</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
To learn more about
<code class="leafygreen-ui-1l06pbn">
dataKeyOpts
</code>
and
<code class="leafygreen-ui-1l06pbn">
kmsProviders
</code>
objects, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/queryable-encryption/fundamentals/kms-providers/#std-label-qe-fundamentals-kms-providers">
KMS Providers
<!-- -->
.
</a>
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Use Key Alternate Names in an Automatic Encryption Schema
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
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</svg>
<div class="css-1btu0w3 evvkmar0" id="use-key-alternate-names-in-an-automatic-encryption-schema">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Encryption schemas contain user-specified rules that identify which
fields must be encrypted and how to encrypt those fields. In your
encryption rules, you can specify alternate key names name for the
Data Encryption Key which encrypts your field.
</p>
<p class="leafygreen-ui-1kp3ins">
You must refer to a key alternate name with a
<strong>
JSON pointer
</strong>
. A JSON
pointer is a string prefixed with a
<code class="leafygreen-ui-1l06pbn">
"/"
</code>
character that can be used
to access a particular field value in the same or another document. Use
JSON pointers to reference a field in your query or update document
which contains the value of your key alternate name.
</p>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
Cannot Use Alternate Name for Deterministically Encrypted Field
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
You cannot reference a
<span class="leafygreen-ui-vm4wms" tabindex="0">
DEK
</span>
by it's alternate name when
encrypting a field with the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/csfle/fundamentals/encryption-algorithms/#std-label-csfle-deterministic-encryption">
deterministic encryption algorithm
</a>
. To encrypt your field
deterministically, you must specify the
<code class="leafygreen-ui-1l06pbn">
_id
</code>
of the key you would
like to use to encrypt your field.
</p>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-csfle-reference-key-alt-name-in-schema">
</span>
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Reference Key Alternate Name in an Encryption Schema
<a class="headerlink leafygreen-ui-1kepx47" href="#reference-key-alternate-name-in-an-encryption-schema" title="Permalink to this heading">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="reference-key-alternate-name-in-an-encryption-schema">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
Consider the following encryption schema which encrypts the
<code class="leafygreen-ui-1l06pbn">
salary
</code>
field:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n \"<database>.<collection>\": {\n \"bsonType\": \"object\",\n \"properties\": {\n \"salary\": {\n \"encrypt\": {\n \"bsonType\": \"int\",\n \"keyId\": \"/fieldWithAltName\",\n \"algorithm\": \"AEAD_AES_256_CBC_HMAC_SHA_512-Random\"\n }\n }\n }\n }\n}","programmingLanguage":"JSON"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light json leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-punctuation">{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"<database>.<collection>"</span><span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-punctuation">{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"bsonType"</span><span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"object"</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"properties"</span><span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-punctuation">{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"salary"</span><span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-punctuation">{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"encrypt"</span><span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-punctuation">{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"bsonType"</span><span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"int"</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"keyId"</span><span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"/fieldWithAltName"</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"algorithm"</span><span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"AEAD_AES_256_CBC_HMAC_SHA_512-Random"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-punctuation">}</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-punctuation">}</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-punctuation">}</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-punctuation">}</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-punctuation">}</span></td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
The schema's
<code class="leafygreen-ui-1l06pbn">
keyId
</code>
field contains a JSON pointer to reference the
<code class="leafygreen-ui-1l06pbn">
fieldWithAltName
</code>
field within the documents being encrypted.
</p>
<p class="leafygreen-ui-1kp3ins">
The following document's
<code class="leafygreen-ui-1l06pbn">
fieldWithAltName
</code>
value is
<code class="leafygreen-ui-1l06pbn">
my-alt-name
</code>
:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n \"name\": \"Jon Doe\",\n \"salary\": 45000,\n \"fieldWithAltName\": \"my-alt-name\"\n}","programmingLanguage":"JSON"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light json leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-punctuation">{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"name"</span><span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"Jon Doe"</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"salary"</span><span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-number">45000</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"fieldWithAltName"</span><span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"my-alt-name"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-punctuation">}</span></td></tr></tbody></table></code></pre>
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
salary
</code>
field is encrypted by the
<span class="leafygreen-ui-vm4wms" tabindex="0">
DEK
</span>
that has the
alternate name
<code class="leafygreen-ui-1l06pbn">
my-alt-name
</code>
.
</p>
<span class="leafygreen-ui-1qnjd6d" id="std-label-csfle-alt-names-dynamic-keys">
</span>
</section>
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Dynamically Assign Keys at Runtime
<a class="headerlink leafygreen-ui-1kepx47" href="#dynamically-assign-keys-at-runtime" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="dynamically-assign-keys-at-runtime">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
You can use alternate key names to dynamically set the Data Encryption Key for
a field at runtime. Use this functionality to encrypt individual
documents with different DEKs using the same encryption schema.
</p>
<p class="leafygreen-ui-1kp3ins">
For example, consider the following documents:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n \"name\": \"Jon Doe\",\n \"salary\": 45000,\n \"fieldWithAltName\": \"my-alt-name\"\n},\n{\n \"name\": \"Jane Smith\",\n \"salary\": 70000,\n \"fieldWithAltName\": \"my-other-alt-name\"\n}","programmingLanguage":"JSON"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light json leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-punctuation">{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"name"</span><span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"Jon Doe"</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"salary"</span><span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-number">45000</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"fieldWithAltName"</span><span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"my-alt-name"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-punctuation">}</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-punctuation">{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"name"</span><span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"Jane Smith"</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"salary"</span><span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-number">70000</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"fieldWithAltName"</span><span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"my-other-alt-name"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-punctuation">}</span></td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
You insert the preceding documents using a CSFLE-enabled
client configured with the encryption schema from the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-csfle-reference-key-alt-name-in-schema" target="_self">
<span>
previous
example
<!-- -->
.
</span>
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
In the encryption schema, the
<code class="leafygreen-ui-1l06pbn">
salary.encrypt.keyId
</code>
field contains a
JSON pointer to the
<code class="leafygreen-ui-1l06pbn">
fieldWithAltName
</code>
field of the inserted document.
As a result, the
<code class="leafygreen-ui-1l06pbn">
salary
</code>
fields in the two example documents are
each encrypted using a
<span class="leafygreen-ui-vm4wms" tabindex="0">
DEK
</span>
specific to the individual
document. The keys are assigned dynamically at runtime.
</p>
<span class="leafygreen-ui-1qnjd6d" id="std-label-csfle_fundamentals_rotate_keys">
</span>
<span class="leafygreen-ui-1qnjd6d" id="std-label-csfle-rotate-keys-mongo-shell">
</span>
</section>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Procedure: Rotate Encryption Keys Using Mongo Shell
<a class="headerlink leafygreen-ui-1kepx47" href="#procedure--rotate-encryption-keys-using-mongo-shell" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="procedure--rotate-encryption-keys-using-mongo-shell">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
With version 1.5 and later of the Mongo Shell, you can rotate encryption keys
using the
<code class="leafygreen-ui-1l06pbn">
rewrapManyDataKey
</code>
method. The
<code class="leafygreen-ui-1l06pbn">
rewrapManyDataKey
</code>
method
automatically decrypts multiple data keys and re-encrypts them using a specified
Customer Master Key. It then updates the rotated keys in the key vault collection.
This method allows you to rotate encryption keys based on two optional arguments:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
A filter used to specify which keys to rotate. If no data key matches
the given filter, no keys are rotated. Omit the filter to rotate all keys
in your key vault collection.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
An object that represents a new
<span class="leafygreen-ui-vm4wms" tabindex="0">
CMK
</span>
. Omit this object to rotate
the data keys using their current CMKs.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
rewrapManyDataKey
</code>
uses the following syntax:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"keyVault = db.getKeyVault()\n\nkeyVault.rewrapManyDataKey(\n {\n \"<your>\"\n },\n {\n provider: \"<kms>\",\n masterKey: {\n \"<datakeyopts>\" : \"<datakeyopts>\"\n }\n }\n)","programmingLanguage":"JSON"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light json leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">keyVault = db.getKeyVault()</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">keyVault.rewrapManyDataKey(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-punctuation">{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"<Your custom filter>"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-punctuation">}</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-punctuation">{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> provider<span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"<KMS provider>"</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> masterKey<span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-punctuation">{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"<dataKeyOpts Key>"</span> <span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"<dataKeyOpts Value>"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-punctuation">}</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-punctuation">}</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To learn more about the
<code class="leafygreen-ui-1l06pbn">
dataKeyOpts
</code>
object for your KMS provider, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/queryable-encryption/fundamentals/kms-providers/#std-label-qe-fundamentals-kms-providers-supported-kms">
Supported Key Management Services
<!-- -->
.
</a>
</p>
<span class="leafygreen-ui-1qnjd6d" id="std-label-field-level-encryption-data-key-delete">
</span>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Delete a Data Encryption Key
<a class="headerlink leafygreen-ui-1kepx47" href="#delete-a-data-encryption-key" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="delete-a-data-encryption-key">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
You can delete a Data Encryption Key from your Key Vault collection using standard CRUD
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/remove-documents/#std-label-write-op-delete">
delete operations
</a>
. If you delete a
<span class="leafygreen-ui-vm4wms" tabindex="0">
DEK
</span>
, all fields encrypted with that
<span class="leafygreen-ui-vm4wms" tabindex="0">
DEK
</span>
become permanently unreadable.
</p>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
MongoDB Shell Specific Feature
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
The MongoDB shell allows you to delete a
<span class="leafygreen-ui-vm4wms" tabindex="0">
DEK
</span>
by
<code class="leafygreen-ui-1l06pbn">
UUID
</code>
using
the
<code class="leafygreen-ui-1l06pbn">
keyVault.deleteKey()
</code>
method as follows:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"keyVault = db.getKeyVault()\nkeyVault.deleteKey(UUID(\"<uuid>\"))"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light none leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">keyVault = db.getKeyVault()</td></tr><tr class=""><td class="leafygreen-ui-7razhx">keyVault.deleteKey(UUID("<UUID String>"))</td></tr></tbody></table></code></pre>
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<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To learn more about Key Vault collections see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/queryable-encryption/fundamentals/keys-key-vaults/#std-label-qe-reference-keys-key-vaults">
Encryption Keys and Key Vaults
<!-- -->
.
</a>
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Learn More
<a class="headerlink leafygreen-ui-1kepx47" href="#learn-more" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="learn-more">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
For tutorials detailing how to set up a CSFLE-enabled
application with each of the supported
<span class="leafygreen-ui-vm4wms" tabindex="0">
KMS
</span>
providers, see the
following pages:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/csfle/tutorials/aws/aws-automatic/#std-label-csfle-tutorial-automatic-aws">
Use Automatic Client-Side Field Level Encryption with AWS
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/csfle/tutorials/azure/azure-automatic/#std-label-csfle-tutorial-automatic-azure">
Use Automatic Client-Side Field Level Encryption with Azure
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/csfle/tutorials/gcp/gcp-automatic/#std-label-csfle-tutorial-automatic-gcp">
Use Automatic Client-Side Field Level Encryption with GCP
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/csfle/tutorials/kmip/kmip-automatic/#std-label-csfle-tutorial-automatic-kmip">
Use Automatic Client-Side Field Level Encryption with KMIP
</a>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
To view additional examples of encryption schemas, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/csfle/reference/encryption-schemas/#std-label-csfle-reference-encryption-schemas">
CSFLE Encryption Schemas
<!-- -->
.
</a>
</p>
</section>
</section>
|
https://www.mongodb.com/docs/manual/tutorial/change-own-password-and-custom-data/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Change Your Password and Custom Data on Self-Managed Deployments
<a class="headerlink leafygreen-ui-1kepx47" href="#change-your-password-and-custom-data-on-self-managed-deployments" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="change-your-password-and-custom-data-on-self-managed-deployments">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#overview" target="_self">
<span>
Overview
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#considerations" target="_self">
<span>
Considerations
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#prerequisites" target="_self">
<span>
Prerequisites
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#procedure" target="_self">
<span>
Procedure
</span>
</a>
</li>
</ul>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Overview
<a class="headerlink leafygreen-ui-1kepx47" href="#overview" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="overview">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
Users with appropriate privileges can change their own passwords and
custom data.
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/system-users-collection/#mongodb-data-admin.system.users.customData">
<code class="leafygreen-ui-1l06pbn">
Custom data
</code>
</a>
stores
optional user information.
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Considerations
<a class="headerlink leafygreen-ui-1kepx47" href="#considerations" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="considerations">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
To generate a strong password for use in this procedure, you can use the
<code class="leafygreen-ui-1l06pbn">
openssl
</code>
utility's
<code class="leafygreen-ui-1l06pbn">
rand
</code>
command. For example, issue
<code class="leafygreen-ui-1l06pbn">
openssl
rand
</code>
with the following options to create a base64-encoded string of 48
pseudo-random bytes:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"openssl rand -base64 48","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">openssl rand -<span class="lg-highlight-built_in">base64</span> 48</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</button>
</div>
</div>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-change-own-password-prereq">
</span>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Prerequisites
<a class="headerlink leafygreen-ui-1kepx47" href="#prerequisites" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="prerequisites">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
To modify your own password and custom data, you must have privileges
that grant
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/privilege-actions/#mongodb-authaction-changeOwnPassword">
<code class="leafygreen-ui-1l06pbn">
changeOwnPassword
</code>
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/privilege-actions/#mongodb-authaction-changeOwnCustomData">
<code class="leafygreen-ui-1l06pbn">
changeOwnCustomData
</code>
</a>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/privilege-actions/#std-label-security-user-actions">
actions
</a>
respectively on the user's database.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"HowTo","steps":[{"@type":"HowToStep","text":"Connect as a user with privileges to manage users and roles.Connect to the mongod or mongos with privileges\nto manage users and roles, such as a user with\nuserAdminAnyDatabase role. The following procedure uses the\nmyUserAdmin created in Enable Access Control on Self-Managed Deployments.If you do not specify the password to the -p\ncommand-line option, mongosh prompts for the\npassword."},{"@type":"HowToStep","text":"Create a role with appropriate privileges.In the admin database, create a new\nrole with changeOwnPassword and\nchangeOwnCustomData."},{"@type":"HowToStep","text":"Add a user with this role.In the test database, create a new user with\nthe created \"changeOwnPasswordCustomDataRole\" role. For example, the following\noperation creates a user with both the built-in role readWrite and\nthe user-created \"changeOwnPasswordCustomDataRole\".You can use the passwordPrompt() method in conjunction with\nvarious user authentication management methods and commands to prompt\nfor the password instead of specifying the password directly in the\nmethod or command call. However, you can still specify the password\ndirectly as you would with earlier versions of the\nmongo shell.To grant an existing user the new role, use\ndb.grantRolesToUser()."}],"name":"Prerequisites","image":"https://webimages.mongodb.com/_com_assets/cms/kuyj2focmkbxv7gh3-stacked_default_slate_blue.svg?auto=format%252Ccompress"}
</script>
<div class="css-4nyere eccljxs0">
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
1
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Connect as a user with privileges to manage users and roles.
<a class="headerlink leafygreen-ui-1kepx47" href="#connect-as-a-user-with-privileges-to-manage-users-and-roles" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="connect-as-a-user-with-privileges-to-manage-users-and-roles">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Connect to the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
with privileges
to manage users and roles, such as a user with
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/built-in-roles/#mongodb-authrole-userAdminAnyDatabase">
<code class="leafygreen-ui-1l06pbn">
userAdminAnyDatabase
</code>
</a>
role. The following procedure uses the
<code class="leafygreen-ui-1l06pbn">
myUserAdmin
</code>
created in
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/enable-authentication/">
Enable Access Control on Self-Managed Deployments
<!-- -->
.
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"mongosh --port 27017 -u myUserAdmin -p --authenticationDatabase 'admin'\n","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">mongosh <!-- -->-<!-- -->-<!-- -->port <span class="lg-highlight-number">27017</span> <!-- -->-<!-- -->u myUserAdmin <!-- -->-<!-- -->p <!-- -->-<!-- -->-<!-- -->authenticationDatabase <span class="lg-highlight-string">'admin'</span></td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
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<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
If you do not specify the password to the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/options/#std-option-mongosh.--password" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
-p
</code>
</span>
</a>
command-line option,
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
prompts for the
password.
</p>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
2
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Create a role with appropriate privileges.
<a class="headerlink leafygreen-ui-1kepx47" href="#create-a-role-with-appropriate-privileges" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="create-a-role-with-appropriate-privileges">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
In the
<code class="leafygreen-ui-1l06pbn">
admin
</code>
database,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.createRole/#mongodb-method-db.createRole">
<code class="leafygreen-ui-1l06pbn">
create
</code>
</a>
a new
role with
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/privilege-actions/#mongodb-authaction-changeOwnPassword">
<code class="leafygreen-ui-1l06pbn">
changeOwnPassword
</code>
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/privilege-actions/#mongodb-authaction-changeOwnCustomData">
<code class="leafygreen-ui-1l06pbn">
changeOwnCustomData
</code>
.
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"use admin\ndb.createRole(\n { role: \"changeOwnPasswordCustomDataRole\",\n privileges: [\n { \n resource: { db: \"\", collection: \"\"},\n actions: [ \"changeOwnPassword\", \"changeOwnCustomData\" ]\n }\n ],\n roles: []\n }\n)\n","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">use admin</td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">createRole</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">role</span>: <span class="lg-highlight-string">"changeOwnPasswordCustomDataRole"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">privileges</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ </td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">resource</span>: <!-- -->{ <span class="lg-highlight-attr">db</span>: <span class="lg-highlight-string">""</span>, <span class="lg-highlight-attr">collection</span>: <span class="lg-highlight-string">""</span>}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">actions</span>: <!-- -->[ <span class="lg-highlight-string">"changeOwnPassword"</span>, <span class="lg-highlight-string">"changeOwnCustomData"</span> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">roles</span>: <!-- -->[<!-- -->]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
3
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Add a user with this role.
<a class="headerlink leafygreen-ui-1kepx47" href="#add-a-user-with-this-role" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="add-a-user-with-this-role">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
In the
<code class="leafygreen-ui-1l06pbn">
test
</code>
database,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.createUser/#mongodb-method-db.createUser">
<code class="leafygreen-ui-1l06pbn">
create
</code>
</a>
a new user with
the created
<code class="leafygreen-ui-1l06pbn">
"changeOwnPasswordCustomDataRole"
</code>
role. For example, the following
operation creates a user with both the built-in role
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/built-in-roles/#mongodb-authrole-readWrite">
<code class="leafygreen-ui-1l06pbn">
readWrite
</code>
</a>
and
the user-created
<code class="leafygreen-ui-1l06pbn">
"changeOwnPasswordCustomDataRole"
</code>
.
</p>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
You can use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/passwordPrompt/#mongodb-method-passwordPrompt">
<code class="leafygreen-ui-1l06pbn">
passwordPrompt()
</code>
</a>
method in conjunction with
various user authentication management methods and commands to prompt
for the password instead of specifying the password directly in the
method or command call. However, you can still specify the password
directly as you would with earlier versions of the
<code class="leafygreen-ui-1l06pbn">
mongo
</code>
shell.
</p>
</div>
</div>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"use test\ndb.createUser(\n {\n user:\"user123\",\n pwd: passwordPrompt(), // or cleartext password\n roles:[ \"readWrite\", { role:\"changeOwnPasswordCustomDataRole\", db:\"admin\" } ] \n }\n)\n","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">use test</td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">createUser</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">user</span>:<span class="lg-highlight-string">"user123"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">pwd</span>: <span class="lg-highlight-title lg-highlight-function">passwordPrompt</span>(<!-- -->)<!-- -->, <span class="lg-highlight-comment">// or cleartext password</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">roles</span>:<!-- -->[ <span class="lg-highlight-string">"readWrite"</span>, <!-- -->{ <span class="lg-highlight-attr">role</span>:<span class="lg-highlight-string">"changeOwnPasswordCustomDataRole"</span>, <span class="lg-highlight-attr">db</span>:<span class="lg-highlight-string">"admin"</span> } ] </td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To grant an existing user the new role, use
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.grantRolesToUser/#mongodb-method-db.grantRolesToUser">
<code class="leafygreen-ui-1l06pbn">
db.grantRolesToUser()
</code>
.
</a>
</p>
</section>
</div>
</div>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Procedure
<a class="headerlink leafygreen-ui-1kepx47" href="#procedure" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="procedure">
</div>
</a>
</h2>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"HowTo","steps":[{"@type":"HowToStep","text":"Connect with the appropriate privileges.Connect to the mongod or mongos as a user with\nappropriate privileges.For example, the following operation connects to MongoDB as\nuser123 created in the Prerequisites\nsection.If you do not specify the password to the -p\ncommand-line option, mongosh prompts for the\npassword.To check that you have the privileges specified in the\nPrerequisites section as well as to see user\ninformation, use the usersInfo command with the\nshowPrivileges option."},{"@type":"HowToStep","text":"Change your password and custom data.Use the db.updateUser() method to update the password and\ncustom data.For example, the following operation changes the user's password to\nKNlZmiaNUp0B and custom data to { title: \"Senior Manager\" }:You can use the passwordPrompt() method in conjunction with\nvarious user authentication management methods and commands to prompt\nfor the password instead of specifying the password directly in the\nmethod or command call. However, you can still specify the password\ndirectly as you would with earlier versions of the\nmongo shell.Enter the password when prompted."}],"name":"Procedure","image":"https://webimages.mongodb.com/_com_assets/cms/kuyj2focmkbxv7gh3-stacked_default_slate_blue.svg?auto=format%252Ccompress"}
</script>
<div class="css-4nyere eccljxs0">
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
1
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Connect with the appropriate privileges.
<a class="headerlink leafygreen-ui-1kepx47" href="#connect-with-the-appropriate-privileges" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="connect-with-the-appropriate-privileges">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Connect to the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
as a user with
appropriate privileges.
</p>
<p class="leafygreen-ui-1kp3ins">
For example, the following operation connects to MongoDB as
<code class="leafygreen-ui-1l06pbn">
user123
</code>
created in the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-change-own-password-prereq" target="_self">
<span>
Prerequisites
</span>
</a>
section.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"mongosh --port 27017 -u user123 --authenticationDatabase 'test' -p\n","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">mongosh <!-- -->-<!-- -->-<!-- -->port <span class="lg-highlight-number">27017</span> <!-- -->-<!-- -->u user123 <!-- -->-<!-- -->-<!-- -->authenticationDatabase <span class="lg-highlight-string">'test'</span> <!-- -->-<!-- -->p</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
If you do not specify the password to the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/options/#std-option-mongosh.--password" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
-p
</code>
</span>
</a>
command-line option,
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
prompts for the
password.
</p>
<p class="leafygreen-ui-1kp3ins">
To check that you have the privileges specified in the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-change-own-password-prereq" target="_self">
<span>
Prerequisites
</span>
</a>
section as well as to see user
information, use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/usersInfo/#mongodb-dbcommand-dbcmd.usersInfo">
<code class="leafygreen-ui-1l06pbn">
usersInfo
</code>
</a>
command with the
<code class="leafygreen-ui-1l06pbn">
showPrivileges
</code>
option.
</p>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
2
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Change your password and custom data.
<a class="headerlink leafygreen-ui-1kepx47" href="#change-your-password-and-custom-data" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="change-your-password-and-custom-data">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.updateUser/#mongodb-method-db.updateUser">
<code class="leafygreen-ui-1l06pbn">
db.updateUser()
</code>
</a>
method to update the password and
custom data.
</p>
<p class="leafygreen-ui-1kp3ins">
For example, the following operation changes the user's password to
<code class="leafygreen-ui-1l06pbn">
KNlZmiaNUp0B
</code>
and custom data to
<code class="leafygreen-ui-1l06pbn">
{ title: "Senior Manager" }
</code>
:
</p>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
You can use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/passwordPrompt/#mongodb-method-passwordPrompt">
<code class="leafygreen-ui-1l06pbn">
passwordPrompt()
</code>
</a>
method in conjunction with
various user authentication management methods and commands to prompt
for the password instead of specifying the password directly in the
method or command call. However, you can still specify the password
directly as you would with earlier versions of the
<code class="leafygreen-ui-1l06pbn">
mongo
</code>
shell.
</p>
</div>
</div>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"use test\ndb.updateUser(\n \"user123\",\n {\n pwd: passwordPrompt(), // or cleartext password\n customData: { title: \"Senior Manager\" }\n }\n)\n","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">use test</td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">updateUser</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"user123"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">pwd</span>: <span class="lg-highlight-title lg-highlight-function">passwordPrompt</span>(<!-- -->)<!-- -->, <span class="lg-highlight-comment">// or cleartext password</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">customData</span>: <!-- -->{ <span class="lg-highlight-attr">title</span>: <span class="lg-highlight-string">"Senior Manager"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Enter the password when prompted.
</p>
</section>
</div>
</div>
</div>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/operator/aggregation/toHashedIndexKey/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
$toHashedIndexKey (aggregation)
<a class="headerlink leafygreen-ui-1kepx47" href="#-tohashedindexkey--aggregation-" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="-tohashedindexkey--aggregation-">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#definition" target="_self">
<span>
Definition
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#syntax" target="_self">
<span>
Syntax
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#example" target="_self">
<span>
Example
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#learn-more" target="_self">
<span>
Learn More
</span>
</a>
</li>
</ul>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Definition
<a class="headerlink leafygreen-ui-1kepx47" href="#definition" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="definition">
</div>
</a>
</h2>
<dl class="expression">
<dt>
<code class="leafygreen-ui-1l06pbn">
$toHashedIndexKey
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-expression-exp.-toHashedIndexKey" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-expression-exp.-toHashedIndexKey">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Computes and returns the hash value of the input expression using
the same hash function that MongoDB uses to create a hashed index.
A hash function maps a key or string to a fixed-size numeric
value.
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Unlike hashed indexes, the
<code class="leafygreen-ui-1l06pbn">
$toHashedIndexKey
</code>
aggregation operator does
<strong>
not
</strong>
account for collation.
This means the operator can produce a hash that does not
match that of a hashed index based on the same data.
</p>
</div>
</div>
</dd>
</dl>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Syntax
<a class="headerlink leafygreen-ui-1kepx47" href="#syntax" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="syntax">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
$toHashedIndexKey
</code>
has the following syntax:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ $toHashedIndexKey: <key> }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-attr">$toHashedIndexKey</span>: <span class="lg-highlight-tag lg-highlight-xml"><</span><span class="lg-highlight-name lg-highlight-tag lg-highlight-xml">key</span><span class="lg-highlight-tag lg-highlight-xml"> </span><span class="lg-highlight-attr lg-highlight-tag lg-highlight-xml">or</span><span class="lg-highlight-tag lg-highlight-xml"> </span><span class="lg-highlight-attr lg-highlight-tag lg-highlight-xml">string</span><span class="lg-highlight-tag lg-highlight-xml"> </span><span class="lg-highlight-attr lg-highlight-tag lg-highlight-xml">to</span><span class="lg-highlight-tag lg-highlight-xml"> </span><span class="lg-highlight-attr lg-highlight-tag lg-highlight-xml">hash</span><span class="lg-highlight-tag lg-highlight-xml">></span><span class="lg-highlight-xml"> }</span></td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</button>
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</div>
</div>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Example
<a class="headerlink leafygreen-ui-1kepx47" href="#example" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="example">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
You can use
<code class="leafygreen-ui-1l06pbn">
$toHashedIndexKey
</code>
to compute the hashed value of a
string in an aggregation pipeline. This example computes the hashed
value of the string
<code class="leafygreen-ui-1l06pbn">
"string to hash"
</code>
:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.aggregate(\n [\n { $documents: [ { val: \"string to hash\" } ] },\n { $addFields: { hashedVal: { $toHashedIndexKey: \"$val\" } } }\n ]\n )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">aggregate</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">$documents</span>: <!-- -->[ <!-- -->{ <span class="lg-highlight-attr">val</span>: <span class="lg-highlight-string">"string to hash"</span> } ] }<!-- -->,</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">$addFields</span>: <!-- -->{ <span class="lg-highlight-attr">hashedVal</span>: <!-- -->{ <span class="lg-highlight-attr">$toHashedIndexKey</span>: <span class="lg-highlight-string">"$val"</span> } } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Example output:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"[ { val: 'string to hash', hashedVal: Long(\"763543691661428748\") } ]","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1agdxuk" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[ <!-- -->{ <span class="lg-highlight-attr">val</span>: <span class="lg-highlight-string">'string to hash'</span>, <span class="lg-highlight-attr">hashedVal</span>: <span class="lg-highlight-title lg-highlight-class">Long</span>(<span class="lg-highlight-string">"763543691661428748"</span>) } ]</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Learn More
<a class="headerlink leafygreen-ui-1kepx47" href="#learn-more" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="learn-more">
</div>
</a>
</h2>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/convertShardKeyToHashed/#mongodb-method-convertShardKeyToHashed">
<code class="leafygreen-ui-1l06pbn">
convertShardKeyToHashed()
</code>
</a>
</p>
</li>
</ul>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/method/SessionOptions/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
SessionOptions
<a class="headerlink leafygreen-ui-1kepx47" href="#sessionoptions" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="sessionoptions">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#definition" target="_self">
<span>
Definition
</span>
</a>
</li>
</ul>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Definition
<a class="headerlink leafygreen-ui-1kepx47" href="#definition" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="definition">
</div>
</a>
</h2>
<dl class="method">
<dt>
<code class="leafygreen-ui-1l06pbn">
SessionOptions
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-method-SessionOptions" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-method-SessionOptions">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The options for a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/Mongo.startSession/#mongodb-method-Mongo.startSession">
<code class="leafygreen-ui-1l06pbn">
session
</code>
</a>
in
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
. To access the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-SessionOptions" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
SessionOptions()
</code>
</span>
</a>
object, use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/Session/#mongodb-method-Session.getOptions">
<code class="leafygreen-ui-1l06pbn">
Session.getOptions()
</code>
</a>
method.
</p>
<p class="leafygreen-ui-1kp3ins">
The session options available are:
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:20%"/>
<col style="width:80%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Option
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
causalConsistency
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Boolean. Enables or disables
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/read-isolation-consistency-recency/#std-label-causal-consistency">
causal consistency
</a>
for the session.
</p>
<p class="leafygreen-ui-1kp3ins">
You can explicitly set the option when you start a session
manually:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
Session = db.getMongo().startSession( { causalConsistency: true } )
</code>
</p>
</li>
</ul>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
readConcern
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Document. Specifies the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/read-concern/#std-label-read-concern">
read concern
<!-- -->
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
In
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
, you can set the option when
you run
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/Mongo.startSession/#mongodb-method-Mongo.startSession">
<code class="leafygreen-ui-1l06pbn">
Mongo.startSession()
</code>
</a>
. You can also access
the
<code class="leafygreen-ui-1l06pbn">
readConcern
</code>
option via the following methods:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
Session.getOptions().getReadConcern()
</code>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
Session.getOptions().setReadConcern(<document>)
</code>
</p>
</li>
</ul>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
readPreference
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Document. Specifies the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/read-preference/#std-label-read-preference">
read preference
<!-- -->
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
In
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
, you can set the option
when you run
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/Mongo.startSession/#mongodb-method-Mongo.startSession">
<code class="leafygreen-ui-1l06pbn">
Mongo.startSession()
</code>
</a>
. You can also
access the
<code class="leafygreen-ui-1l06pbn">
readPreference
</code>
option via the following
methods:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
Session.getOptions().getReadPreference()
</code>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
Session.getOptions().setReadPreference({ mode: <string>, tags: <array>})
</code>
</p>
</li>
</ul>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
retryWrites
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Boolean. Enables or disables the ability to retry writes upon
encountering transient network errors, such as during
failovers.
</p>
<p class="leafygreen-ui-1kp3ins">
To enable retry writes, start
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
with the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/options/#std-option-mongosh.--retryWrites" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
--retryWrites
</code>
</span>
</a>
option.
</p>
<p class="leafygreen-ui-1kp3ins">
You can view whether
<code class="leafygreen-ui-1l06pbn">
retryWrites
</code>
is enabled for a session
via the following method:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
Session.getOptions().shouldRetryWrites()
</code>
</p>
</li>
</ul>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
writeConcern
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Document. Specifies the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/write-concern/#std-label-write-concern">
write concern
<!-- -->
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
In
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
, you can set the options
when you run
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/Mongo.startSession/#mongodb-method-Mongo.startSession">
<code class="leafygreen-ui-1l06pbn">
Mongo.startSession()
</code>
</a>
. You can also
access the
<code class="leafygreen-ui-1l06pbn">
writeConcern
</code>
option via the following methods:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
Session.getOptions().getWriteConcern()
</code>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
Session.getOptions().setWriteConcern(<document>)
</code>
</p>
</li>
</ul>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</dd>
</dl>
<p class="leafygreen-ui-1kp3ins">
Verify which options are enabled for the session by running
<code class="leafygreen-ui-1l06pbn">
Session.getOptions()
</code>
.
</p>
</section>
</section>
|
https://www.mongodb.com/docs/manual/tutorial/remove-shards-from-cluster/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Remove Shards from a Sharded Cluster
<a class="headerlink leafygreen-ui-1kepx47" href="#remove-shards-from-a-sharded-cluster" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="remove-shards-from-a-sharded-cluster">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#about-this-task" target="_self">
<span>
About this Task
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#before-you-begin" target="_self">
<span>
Before you Begin
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#steps" target="_self">
<span>
Steps
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#learn-more" target="_self">
<span>
Learn More
</span>
</a>
</li>
</ul>
</div>
<p class="leafygreen-ui-1kp3ins">
To remove a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-shard">
shard
</a>
you must ensure the shard's data is migrated
to the remaining shards in the cluster. This procedure describes how to
safely migrate data and remove a shard.
</p>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
About this Task
<a class="headerlink leafygreen-ui-1kepx47" href="#about-this-task" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="about-this-task">
</div>
</a>
</h2>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Creating, sharding, or moving collections while performing this
procedure may cause interruptions and lead to unexpected results.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Do not use this procedure to migrate an entire cluster to new
hardware. To migrate, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/migrate-sharded-cluster-to-new-hardware/#std-label-migrate-cluster-to-different-hardware">
Migrate a Self-Managed Sharded Cluster to Different Hardware
<!-- -->
.
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
When you remove a shard in a cluster with an uneven chunk
distribution, the balancer first removes the chunks from the draining
shard and then balances the remaining uneven chunk distribution.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Removing a shard may cause an open
<a class="leafygreen-ui-tqgtui" href="/docs/manual/changeStreams/#std-label-changeStreams">
change stream cursor
</a>
to close, and the closed change stream cursor may
not be fully resumable.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
You can safely restart a cluster during a shard removal process. If
you restart a cluster during an ongoing
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-draining">
draining
</a>
process,
draining continues automatically after the cluster components restart.
MongoDB records the shard draining status in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/config-database/#mongodb-data-config.shards">
<code class="leafygreen-ui-1l06pbn">
config.shards
</code>
</a>
collection.
</p>
</li>
</ul>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Before you Begin
<a class="headerlink leafygreen-ui-1kepx47" href="#before-you-begin" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="before-you-begin">
</div>
</a>
</h2>
<ol class="leafygreen-ui-rioki0" type="1">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
This procedure uses the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/sh.moveCollection/#mongodb-method-sh.moveCollection">
<code class="leafygreen-ui-1l06pbn">
sh.moveCollection()
</code>
</a>
method to move
collections off of the removed shard. Before you begin this
procedure, review the
<code class="leafygreen-ui-1l06pbn">
moveCollection
</code>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/sh.moveCollection/#std-label-moveCollection-method-considerations">
considerations
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/sh.moveCollection/#std-label-moveCollection-method-reqs">
requirements
</a>
to understand the command behavior.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
To remove a shard, first connect to one of the cluster's
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instances using
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
.
</span>
</a>
</p>
</li>
</ol>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Steps
<a class="headerlink leafygreen-ui-1kepx47" href="#steps" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="steps">
</div>
</a>
</h2>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"HowTo","steps":[{"@type":"HowToStep","text":"To migrate data from a shard, the balancer process must\nbe enabled. To check the balancer state, use the\nsh.getBalancerState() method:If the operation returns true, the balancer is enabled.If the operation returns false, see\nEnable the Balancer.","name":"Ensure the balancer is enabled"},{"@type":"HowToStep","text":"To find the name of the shard, run the listShards command:The shards._id field contains the shard name.","name":"Determine the name of the shard to remove"},{"@type":"HowToStep","text":"Run the removeShard command for the shard you want to\nremove:mongos converts the\nwrite concern of the\nremoveShard command to \"majority\".The removeShard operation returns:The shard enters the draining state and the balancer begins\nmigrating chunks from the removed shard to other shards in the\ncluster. These migrations happens slowly to avoid severe impact on\nthe overall cluster. Depending on your network capacity and the\namount of data, this operation can take from a few minutes to\nseveral days to complete.While the shard is in the draining state, you can use the\nreshardCollection command to redistribute\ndata off of the removed shard.Moving data with reshardCollection can be faster than\nwaiting for the balancer to migrate chunks. The cluster ensures\nthat data is not placed on any draining shards. You can't run\nmoveCollection and reshardCollection operations\nsimultaneously.","name":"Remove chunks from the shard"},{"@type":"HowToStep","text":"To return a list of sharded collection namespaces, use the\n$shardedDataDistribution stage and project the ns\nfield:Record the output to reference later in this tutorial.","name":"List sharded collection namespaces"},{"@type":"HowToStep","text":"List all databases in the cluster"},{"@type":"HowToStep","text":"For each database in the cluster, excluding admin and config,\nperform these steps:List the database collectionsList the collections in the database, omitting the following\ntypes of collections:Internal collections that support CSFLESystem collectionsTime series collectionsViewsMove necessary collectionsFor each collection returned by getCollectionInfos()\nperform the following steps.Only one moveCollection operation can be in progress\nat a time. Complete all sub-steps before moving on to the\nnext collection.Determine whether the collection needs to be moved.Run the $collStats aggregation stage and\nproject the ns and shard fields:If any of the following criteria are met, skip the\ncollection and return to step i for the next\ncollection in the database:The ns field is present in the\n$shardedDataDistribution output from step 4.The shard field is not the shard being removed.If neither of the preceding criteria are met, continue to\nstep ii for the current collection.Move the collection.To move the collection, run sh.moveCollection()\non the collection:moveCollection fails if you run the command on a\nnamespace that is sharded. If you receive this error\nmessage, ignore it and return to step i for the\nnext collection.Return to step i for each collection in the database.Repeat the procedure for other databasesRepeat step 6, Move collections off of the shard\n(and sub-steps) for each database in the cluster.","name":"Move collections off of the shard"},{"@type":"HowToStep","text":"Run the db.printShardingStatus() method:In the databases section of the command output, check the\ndatabase.primary field. If the primary field is the\nremoved shard, you must move that database's primary to a\ndifferent shard.To change a database's primary shard, run the movePrimary\ncommand.When you run movePrimary, any collections that were not\nmoved in the Move collections off of the shard step\nare unavailable during the movePrimary process.","name":"Change primary shard"},{"@type":"HowToStep","text":"To check the progress of the migration, run\nremoveShard from the admin database again:In the output, the remaining field includes these fields:FieldDescriptionchunksNumber of chunks currently remaining on the sharddbsNumber of databases whose primary shard is the shard. These databases are specified in\nthe dbsToMove output field.jumboChunksOf the total number of chunks, the number that are\njumbo.If jumboChunks is greater than 0, wait until only the\njumboChunks remain on the shard. Once only the\njumbo chunks remain, you must manually clear the jumbo\nflag before the draining can complete. See\nClear jumbo Flag.After the jumbo flag clears, the balancer can migrate these\nchunks. For details on the migration procedure, see\nRange Migration Procedure.Continue checking the status of the removeShard command until the\nnumber of chunks remaining is 0.","name":"Check migration status"},{"@type":"HowToStep","text":"To finalize the shard removal process, re-run the removeShard\ncommand:If you remove a shard while your cluster executes a DDL\noperation (an operation that modifies a collection such as\nreshardCollection), the removeShard operation\nruns after the concurrent DDL operation finishes.If the shard is removed, the command output resembles the\nfollowing:","name":"Finalize shard removal"}],"name":"Steps","image":"https://webimages.mongodb.com/_com_assets/cms/kuyj2focmkbxv7gh3-stacked_default_slate_blue.svg?auto=format%252Ccompress"}
</script>
<div class="css-4nyere eccljxs0">
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
1
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Ensure the balancer is enabled
<a class="headerlink leafygreen-ui-1kepx47" href="#ensure-the-balancer-is-enabled" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="ensure-the-balancer-is-enabled">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
To migrate data from a shard, the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-balancer">
balancer
</a>
process must
be enabled. To check the balancer state, use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/sh.getBalancerState/#mongodb-method-sh.getBalancerState">
<code class="leafygreen-ui-1l06pbn">
sh.getBalancerState()
</code>
</a>
method:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"sh.getBalancerState()","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">sh.<span class="lg-highlight-title lg-highlight-function">getBalancerState</span>(<!-- -->)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
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</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
If the operation returns
<code class="leafygreen-ui-1l06pbn">
true
</code>
, the balancer is enabled.
</p>
<p class="leafygreen-ui-1kp3ins">
If the operation returns
<code class="leafygreen-ui-1l06pbn">
false
</code>
, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/manage-sharded-cluster-balancer/#std-label-sharding-balancing-enable">
Enable the Balancer
<!-- -->
.
</a>
</p>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
2
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Determine the name of the shard to remove
<a class="headerlink leafygreen-ui-1kepx47" href="#determine-the-name-of-the-shard-to-remove" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="determine-the-name-of-the-shard-to-remove">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
To find the name of the shard, run the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/listShards/#mongodb-dbcommand-dbcmd.listShards">
<code class="leafygreen-ui-1l06pbn">
listShards
</code>
</a>
command:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand( { listShards: 1 } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>( <!-- -->{ <span class="lg-highlight-attr">listShards</span>: <span class="lg-highlight-number">1</span> } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
shards._id
</code>
field contains the shard name.
</p>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
3
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Remove chunks from the shard
<a class="headerlink leafygreen-ui-1kepx47" href="#remove-chunks-from-the-shard" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="remove-chunks-from-the-shard">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Run the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/removeShard/#mongodb-dbcommand-dbcmd.removeShard">
<code class="leafygreen-ui-1l06pbn">
removeShard
</code>
</a>
command for the shard you want to
remove:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand( { removeShard: \"<shardname>\" } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>( <!-- -->{ <span class="lg-highlight-attr">removeShard</span>: <span class="lg-highlight-string">"<shardName>"</span> } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
converts the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/write-concern/#std-label-write-concern">
write concern
</a>
of the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/removeShard/#mongodb-dbcommand-dbcmd.removeShard">
<code class="leafygreen-ui-1l06pbn">
removeShard
</code>
</a>
command to
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/write-concern/#mongodb-writeconcern-writeconcern.-majority-">
<code class="leafygreen-ui-1l06pbn">
"majority"
</code>
.
</a>
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
removeShard
</code>
operation returns:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n \"msg\" : \"draining started successfully\",\n \"state\" : \"started\",\n \"shard\" : \"<shardname>\",\n \"note\" : \"you need to drop or movePrimary these databases\",\n \"dbsToMove\" : [\n \"db1\",\n \"db2\"\n ],\n \"ok\" : 1,\n \"operationTime\" : Timestamp(1575398919, 2),\n \"$clusterTime\" : {\n \"clusterTime\" : Timestamp(1575398919, 2),\n \"signature\" : {\n \"hash\" : BinData(0,\"Oi68poWCFCA7b9kyhIcg+TzaGiA=\"),\n \"keyId\" : NumberLong(\"6766255701040824328\")\n }\n }\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"msg"</span> <!-- -->: <span class="lg-highlight-string">"draining started successfully"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"state"</span> <!-- -->: <span class="lg-highlight-string">"started"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"shard"</span> <!-- -->: <span class="lg-highlight-string">"<shardName>"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"note"</span> <!-- -->: <span class="lg-highlight-string">"you need to drop or movePrimary these databases"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"dbsToMove"</span> <!-- -->: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"db1"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"db2"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"ok"</span> <!-- -->: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"operationTime"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">Timestamp</span>(<span class="lg-highlight-number">1575398919</span>, <span class="lg-highlight-number">2</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"$clusterTime"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"clusterTime"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">Timestamp</span>(<span class="lg-highlight-number">1575398919</span>, <span class="lg-highlight-number">2</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"signature"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"hash"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">BinData</span>(<span class="lg-highlight-number">0</span>,<span class="lg-highlight-string">"Oi68poWCFCA7b9kyhIcg+TzaGiA="</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"keyId"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">NumberLong</span>(<span class="lg-highlight-string">"6766255701040824328"</span>)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The shard enters the
<code class="leafygreen-ui-1l06pbn">
draining
</code>
state and the balancer begins
migrating chunks from the removed shard to other shards in the
cluster. These migrations happens slowly to avoid severe impact on
the overall cluster. Depending on your network capacity and the
amount of data, this operation can take from a few minutes to
several days to complete.
</p>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
While the shard is in the
<code class="leafygreen-ui-1l06pbn">
draining
</code>
state, you can use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/reshardCollection/#std-label-reshardCollection-redistribute-data">
reshardCollection
</a>
command to redistribute
data off of the removed shard.
</p>
<p class="leafygreen-ui-1kp3ins">
Moving data with
<code class="leafygreen-ui-1l06pbn">
reshardCollection
</code>
can be faster than
waiting for the balancer to migrate chunks. The cluster ensures
that data is not placed on any draining shards. You can't run
<code class="leafygreen-ui-1l06pbn">
moveCollection
</code>
and
<code class="leafygreen-ui-1l06pbn">
reshardCollection
</code>
operations
simultaneously.
</p>
</div>
</div>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
4
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
List sharded collection namespaces
<a class="headerlink leafygreen-ui-1kepx47" href="#list-sharded-collection-namespaces" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="list-sharded-collection-namespaces">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
To return a list of sharded collection namespaces, use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/shardedDataDistribution/#mongodb-pipeline-pipe.-shardedDataDistribution">
<code class="leafygreen-ui-1l06pbn">
$shardedDataDistribution
</code>
</a>
stage and project the
<code class="leafygreen-ui-1l06pbn">
ns
</code>
field:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"use admin\n\ndb.aggregate(\n [\n { $shardedDataDistribution: { } },\n { $project: { ns: 1 } }\n ]\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">use admin</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">aggregate</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">$shardedDataDistribution</span>: <!-- -->{ <!-- -->} }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">$project</span>: <!-- -->{ <span class="lg-highlight-attr">ns</span>: <span class="lg-highlight-number">1</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</svg>
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</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Record the output to reference later in this tutorial.
</p>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
5
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
List all databases in the cluster
<a class="headerlink leafygreen-ui-1kepx47" href="#list-all-databases-in-the-cluster" title="Permalink to this heading">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="list-all-databases-in-the-cluster">
</div>
</a>
</h3>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand( { listDatabases: 1, nameOnly: true } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>( <!-- -->{ <span class="lg-highlight-attr">listDatabases</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-attr">nameOnly</span>: <span class="lg-highlight-literal">true</span> } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
6
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Move collections off of the shard
<a class="headerlink leafygreen-ui-1kepx47" href="#move-collections-off-of-the-shard" title="Permalink to this heading">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="move-collections-off-of-the-shard">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
<strong>
For each database in the cluster, excluding admin and config
</strong>
,
perform these steps:
</p>
<ol class="leafygreen-ui-rioki0" type="a">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
List the database collections
</p>
<p class="leafygreen-ui-1kp3ins">
List the collections in the database, omitting the following
types of collections:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Internal collections that support CSFLE
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
System collections
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Time series collections
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Views
</p>
</li>
</ul>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"use <databasename>\n\ndb.getCollectionInfos(\n {\n $and: [\n { type: { $nin: [ \"view\", \"timeseries\" ] } },\n { name: { $not: { $regex: \"^system\\.\" } } },\n { name: { $not: { $regex: \"^enxcol_\\..*(\\.esc|\\.ecc|\\.ecoc|\\.ecoc\\.compact)$\" } } }\n ]\n },\n { nameOnly: true }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">use <!-- --><<!-- -->databaseName<!-- -->></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">getCollectionInfos</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">$and</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">type</span>: <!-- -->{ <span class="lg-highlight-attr">$nin</span>: <!-- -->[ <span class="lg-highlight-string">"view"</span>, <span class="lg-highlight-string">"timeseries"</span> ] } }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">name</span>: <!-- -->{ <span class="lg-highlight-attr">$not</span>: <!-- -->{ <span class="lg-highlight-attr">$regex</span>: <span class="lg-highlight-string">"^system</span><span class="lg-highlight-string">\.</span><span class="lg-highlight-string">"</span> } } }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">name</span>: <!-- -->{ <span class="lg-highlight-attr">$not</span>: <!-- -->{ <span class="lg-highlight-attr">$regex</span>: <span class="lg-highlight-string">"^enxcol_</span><span class="lg-highlight-string">\.</span><span class="lg-highlight-string">.*(</span><span class="lg-highlight-string">\.</span><span class="lg-highlight-string">esc|</span><span class="lg-highlight-string">\.</span><span class="lg-highlight-string">ecc|</span><span class="lg-highlight-string">\.</span><span class="lg-highlight-string">ecoc|</span><span class="lg-highlight-string">\.</span><span class="lg-highlight-string">ecoc</span><span class="lg-highlight-string">\.</span><span class="lg-highlight-string">compact)$"</span> } } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">nameOnly</span>: <span class="lg-highlight-literal">true</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
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</svg>
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</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Move necessary collections
</p>
<p class="leafygreen-ui-1kp3ins">
For each collection returned by
<code class="leafygreen-ui-1l06pbn">
getCollectionInfos()
</code>
perform the following steps.
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Only one
<code class="leafygreen-ui-1l06pbn">
moveCollection
</code>
operation can be in progress
at a time. Complete all sub-steps before moving on to the
next collection.
</p>
</div>
</div>
<ol class="leafygreen-ui-rioki0" type="i">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Determine whether the collection needs to be moved.
</p>
<p class="leafygreen-ui-1kp3ins">
Run the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/collStats/#mongodb-pipeline-pipe.-collStats">
<code class="leafygreen-ui-1l06pbn">
$collStats
</code>
</a>
aggregation stage and
project the
<code class="leafygreen-ui-1l06pbn">
ns
</code>
and
<code class="leafygreen-ui-1l06pbn">
shard
</code>
fields:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.<collname>.aggregate(\n [\n {\n $collStats: { }\n },\n {\n $project: {\n ns: 1,\n shard: 1\n }\n }\n ]\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<!-- --><<!-- -->collName<!-- -->><!-- -->.<span class="lg-highlight-title lg-highlight-function">aggregate</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">$collStats</span>: <!-- -->{ <!-- -->}</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">$project</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">ns</span>: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">shard</span>: <span class="lg-highlight-number">1</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
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</div>
<p class="leafygreen-ui-1kp3ins">
If any of the following criteria are met, skip the
collection and return to step
<code class="leafygreen-ui-1l06pbn">
i
</code>
for the next
collection in the database:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
ns
</code>
field is present in the
<code class="leafygreen-ui-1l06pbn">
$shardedDataDistribution
</code>
output from step 4.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
shard
</code>
field is not the shard being removed.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
If neither of the preceding criteria are met, continue to
step
<code class="leafygreen-ui-1l06pbn">
ii
</code>
for the current collection.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Move the collection.
</p>
<p class="leafygreen-ui-1kp3ins">
To move the collection, run
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/sh.moveCollection/#mongodb-method-sh.moveCollection">
<code class="leafygreen-ui-1l06pbn">
sh.moveCollection()
</code>
</a>
on the collection:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"sh.moveCollection( \"<namespace>.<collection>\", \"<id>\" )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">sh.<span class="lg-highlight-title lg-highlight-function">moveCollection</span>( <span class="lg-highlight-string">"<namespace>.<collection>"</span>, <span class="lg-highlight-string">"<ID of recipient shard>"</span> )</td></tr></tbody></table></code></pre>
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</div>
</div>
</div>
</div>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
moveCollection
</code>
fails if you run the command on a
namespace that is sharded. If you receive this error
message, ignore it and return to step
<code class="leafygreen-ui-1l06pbn">
i
</code>
for the
next collection.
</p>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Return to step
<code class="leafygreen-ui-1l06pbn">
i
</code>
for each collection in the database.
</p>
</li>
</ol>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Repeat the procedure for other databases
</p>
<p class="leafygreen-ui-1kp3ins">
Repeat step 6,
<span class="guilabel css-h15tq0">
Move collections off of the shard
</span>
(and sub-steps) for each database in the cluster.
</p>
</li>
</ol>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
7
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Change primary shard
<a class="headerlink leafygreen-ui-1kepx47" href="#change-primary-shard" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="change-primary-shard">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Run the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.printShardingStatus/#mongodb-method-db.printShardingStatus">
<code class="leafygreen-ui-1l06pbn">
db.printShardingStatus()
</code>
</a>
method:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.printShardingStatus()","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">printShardingStatus</span>(<!-- -->)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
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<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
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</div>
</div>
<p class="leafygreen-ui-1kp3ins">
In the
<code class="leafygreen-ui-1l06pbn">
databases
</code>
section of the command output, check the
<code class="leafygreen-ui-1l06pbn">
database.primary
</code>
field. If the
<code class="leafygreen-ui-1l06pbn">
primary
</code>
field is the
removed shard, you must move that database's primary to a
different shard.
</p>
<p class="leafygreen-ui-1kp3ins">
To change a database's primary shard, run the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/movePrimary/#mongodb-dbcommand-dbcmd.movePrimary">
<code class="leafygreen-ui-1l06pbn">
movePrimary
</code>
</a>
command.
</p>
<div class="leafygreen-ui-1sjx7ru" role="note">
<h2 class="leafygreen-ui-29m78u">
Warning
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
When you run
<code class="leafygreen-ui-1l06pbn">
movePrimary
</code>
, any collections that were not
moved in the
<span class="guilabel css-h15tq0">
Move collections off of the shard
</span>
step
are unavailable during the
<code class="leafygreen-ui-1l06pbn">
movePrimary
</code>
process.
</p>
</div>
</div>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand(\n {\n movePrimary: <dbname>,\n to: <shardname>\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">movePrimary</span>: <<!-- -->dbName<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">to</span>: <<!-- -->shardName<!-- -->></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->}</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
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</div>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
8
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Check migration status
<a class="headerlink leafygreen-ui-1kepx47" href="#check-migration-status" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="check-migration-status">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
To check the progress of the migration, run
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/removeShard/#mongodb-dbcommand-dbcmd.removeShard">
<code class="leafygreen-ui-1l06pbn">
removeShard
</code>
</a>
from the
<code class="leafygreen-ui-1l06pbn">
admin
</code>
database again:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand( { removeShard: \"<shardname>\" } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>( <!-- -->{ <span class="lg-highlight-attr">removeShard</span>: <span class="lg-highlight-string">"<shardName>"</span> } )</td></tr></tbody></table></code></pre>
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
In the output, the
<code class="leafygreen-ui-1l06pbn">
remaining
</code>
field includes these fields:
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:10%"/>
<col style="width:90%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Field
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
chunks
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Number of chunks currently remaining on the shard
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
dbs
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Number of databases whose
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/sharded-cluster-shards/#std-label-primary-shard">
primary shard
</a>
is the shard. These databases are specified in
the
<code class="leafygreen-ui-1l06pbn">
dbsToMove
</code>
output field.
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
jumboChunks
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Of the total number of
<code class="leafygreen-ui-1l06pbn">
chunks
</code>
, the number that are
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/sharding-data-partitioning/#std-label-jumbo-chunk">
jumbo
<!-- -->
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
If
<code class="leafygreen-ui-1l06pbn">
jumboChunks
</code>
is greater than 0, wait until only the
<code class="leafygreen-ui-1l06pbn">
jumboChunks
</code>
remain on the shard. Once only the
<code class="leafygreen-ui-1l06pbn">
jumbo
</code>
chunks remain, you must manually clear the jumbo
flag before the draining can complete. See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/clear-jumbo-flag/#std-label-clear-jumbo-flag">
Clear
<code class="leafygreen-ui-1l06pbn">
jumbo
</code>
Flag
<!-- -->
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
After the
<code class="leafygreen-ui-1l06pbn">
jumbo
</code>
flag clears, the balancer can migrate these
chunks. For details on the migration procedure, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/sharding-balancer-administration/#std-label-chunk-migration-procedure">
Range Migration Procedure
<!-- -->
.
</a>
</p>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<p class="leafygreen-ui-1kp3ins">
Continue checking the status of the
<code class="leafygreen-ui-1l06pbn">
removeShard
</code>
command until the
number of chunks remaining is 0.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand( { removeShard: \"<shardname>\" } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>( <!-- -->{ <span class="lg-highlight-attr">removeShard</span>: <span class="lg-highlight-string">"<shardName>"</span> } )</td></tr></tbody></table></code></pre>
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</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
9
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Finalize shard removal
<a class="headerlink leafygreen-ui-1kepx47" href="#finalize-shard-removal" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="finalize-shard-removal">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
To finalize the shard removal process, re-run the
<code class="leafygreen-ui-1l06pbn">
removeShard
</code>
command:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand( { removeShard: <shardname> } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>( <!-- -->{ <span class="lg-highlight-attr">removeShard</span>: <<!-- -->shardName<!-- -->> <!-- -->} )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
DDL Operations
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
If you remove a shard while your cluster executes a DDL
operation (an operation that modifies a collection such as
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/reshardCollection/#mongodb-dbcommand-dbcmd.reshardCollection">
<code class="leafygreen-ui-1l06pbn">
reshardCollection
</code>
</a>
), the
<code class="leafygreen-ui-1l06pbn">
removeShard
</code>
operation
runs after the concurrent DDL operation finishes.
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
If the shard is removed, the command output resembles the
following:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n msg: 'removeshard completed successfully',\n state: 'completed',\n shard: '<shardname>',\n ok: 1,\n '$clusterTime': {\n clusterTime: Timestamp({ t: 1721941519, i: 7 }),\n signature: {\n hash: Binary.createFromBase64('AAAAAAAAAAAAAAAAAAAAAAAAAAA=', 0),\n keyId: Long('0')\n }\n },\n operationTime: Timestamp({ t: 1721941519, i: 7 })\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">msg</span>: <span class="lg-highlight-string">'removeshard completed successfully'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">state</span>: <span class="lg-highlight-string">'completed'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">shard</span>: <span class="lg-highlight-string">'<shardName>'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">ok</span>: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">'$clusterTime'</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">clusterTime</span>: <span class="lg-highlight-title lg-highlight-class">Timestamp</span>(<!-- -->{ <span class="lg-highlight-attr">t</span>: <span class="lg-highlight-number">1721941519</span>, <span class="lg-highlight-attr">i</span>: <span class="lg-highlight-number">7</span> })<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">signature</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">hash</span>: <span class="lg-highlight-title lg-highlight-class">Binary</span>.<span class="lg-highlight-title lg-highlight-function">createFromBase64</span>(<span class="lg-highlight-string">'AAAAAAAAAAAAAAAAAAAAAAAAAAA='</span>, <span class="lg-highlight-number">0</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">keyId</span>: <span class="lg-highlight-title lg-highlight-class">Long</span>(<span class="lg-highlight-string">'0'</span>)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">operationTime</span>: <span class="lg-highlight-title lg-highlight-class">Timestamp</span>(<!-- -->{ <span class="lg-highlight-attr">t</span>: <span class="lg-highlight-number">1721941519</span>, <span class="lg-highlight-attr">i</span>: <span class="lg-highlight-number">7</span> })</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</section>
</div>
</div>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Learn More
<a class="headerlink leafygreen-ui-1kepx47" href="#learn-more" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="learn-more">
</div>
</a>
</h2>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/add-member-to-shard/#std-label-sharding-procedure-add-member-to-shard">
Add a Member to a Shard
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/backup-sharded-cluster-metadata/#std-label-back-up-sharded-cluster-metadata">
Back Up Self-Managed Cluster Metadata
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/sharding-data-partitioning/#std-label-sharding-data-partitioning">
Data Partitioning with Chunks
</a>
</p>
</li>
</ul>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/command/collMod/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
collMod
<a class="headerlink leafygreen-ui-1kepx47" href="#collmod" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="collmod">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#definition" target="_self">
<span>
Definition
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#compatibility" target="_self">
<span>
Compatibility
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#syntax" target="_self">
<span>
Syntax
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#options" target="_self">
<span>
Options
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#change-index-properties" target="_self">
<span>
Change Index Properties
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#validate-documents" target="_self">
<span>
Validate Documents
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#modify-views" target="_self">
<span>
Modify Views
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#modify-time-series-collections" target="_self">
<span>
Modify Time Series Collections
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#resize-a-capped-collection" target="_self">
<span>
Resize a Capped Collection
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#change-streams-with-document-pre--and-post-images" target="_self">
<span>
Change Streams with Document Pre- and Post-Images
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#attach-comment" target="_self">
<span>
Attach Comment
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#write-concern" target="_self">
<span>
Write Concern
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#access-control" target="_self">
<span>
Access Control
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#behavior" target="_self">
<span>
Behavior
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#resource-locking" target="_self">
<span>
Resource Locking
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#examples" target="_self">
<span>
Examples
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#change-expiration-value-for-indexes" target="_self">
<span>
Change Expiration Value for Indexes
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#hide-an-index-from-the-query-planner" target="_self">
<span>
Hide an Index from the Query Planner
</span>
</a>
</li>
</ul>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Definition
<a class="headerlink leafygreen-ui-1kepx47" href="#definition" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="definition">
</div>
</a>
</h2>
<dl class="dbcommand">
<dt>
<code class="leafygreen-ui-1l06pbn">
collMod
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-dbcommand-dbcmd.collMod" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-dbcommand-dbcmd.collMod">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.collMod" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
collMod
</code>
</span>
</a>
makes it possible to add options to a
collection or to modify view definitions.
</p>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
In
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#std-program-mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
, this command can also be run through the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.hideIndex/#mongodb-method-db.collection.hideIndex">
<code class="leafygreen-ui-1l06pbn">
hideIndex()
</code>
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.unhideIndex/#mongodb-method-db.collection.unhideIndex">
<code class="leafygreen-ui-1l06pbn">
unhideIndex()
</code>
</a>
helper methods
<!-- -->
.
</p>
<p class="leafygreen-ui-1kp3ins">
Helper methods are convenient for
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#std-program-mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
users, but they may not
return the same level of information as database commands. In cases where
the convenience is not needed or the additional return fields are required,
use the database command.
</p>
</div>
</div>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
The view modified by
<code class="leafygreen-ui-1l06pbn">
collMod
</code>
does not refer to materialized
views. For discussion of on-demand materialized views, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/merge/#mongodb-pipeline-pipe.-merge">
<code class="leafygreen-ui-1l06pbn">
$merge
</code>
</a>
instead.
</p>
</div>
</div>
</dd>
</dl>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Compatibility
<a class="headerlink leafygreen-ui-1kepx47" href="#compatibility" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="compatibility">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
This command is available in deployments hosted in the following environments:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas?tck=docs_server" target="_self">
<span>
MongoDB Atlas
</span>
</a>
: The fully
managed service for MongoDB deployments in the cloud
</p>
</li>
</ul>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
This command is supported in all MongoDB Atlas clusters.
For information on Atlas support for all commands, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/unsupported-commands/" target="_self">
<span>
Unsupported Commands
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/install-enterprise/#std-label-install-mdb-enterprise">
MongoDB Enterprise
</a>
: The
subscription-based, self-managed version of MongoDB
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/install-community/#std-label-install-mdb-community-edition">
MongoDB Community
</a>
: The
source-available, free-to-use, and self-managed version of MongoDB
</p>
</li>
</ul>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Syntax
<a class="headerlink leafygreen-ui-1kepx47" href="#syntax" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="syntax">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The command has the following syntax:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.runCommand(\n {\n collMod: <collection>,\n <option1>: <value1>,\n <option2>: <value2>,\n ...\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">runCommand</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">collMod</span>: <!-- --><collection or view>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <option1>: <value1>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <option2>: <value2>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
For the
<code class="leafygreen-ui-1l06pbn">
<collection or view>
</code>
, specify the name of a collection
or view in the current database.
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Options
<a class="headerlink leafygreen-ui-1kepx47" href="#options" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="options">
</div>
</a>
</h2>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Change Index Properties
<a class="headerlink leafygreen-ui-1kepx47" href="#change-index-properties" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="change-index-properties">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
To change index options, specify either the key pattern or name of the
existing index options you want to change:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.runCommand( {\n collMod: <collection>,\n index: {\n keyPattern: <index_spec> | name: <index_name>,\n expireAfterSeconds: <number>, // Set the TTL expiration threshold\n hidden: <boolean>, // Change index visibility in the query planner\n prepareUnique: <boolean>, // Reject new duplicate index entries\n unique: <boolean> // Convert an index to a unique index\n },\n dryRun: <boolean>\n} )","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">runCommand</span>( <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">collMod</span>: <<!-- -->collection<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">index</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">keyPattern</span>: <<!-- -->index_spec<!-- -->> <!-- -->| <span class="lg-highlight-attr">name</span>: <<!-- -->index_name<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">expireAfterSeconds</span>: <<!-- -->number<!-- -->><!-- -->,<!-- --> <span class="lg-highlight-comment">// Set the TTL expiration threshold</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">hidden</span>: <<!-- -->boolean<!-- -->><!-- -->,<!-- --> <span class="lg-highlight-comment">//</span><span class="lg-highlight-comment"> Change index visibility </span><span class="lg-highlight-comment">in the query planner</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">prepareUnique</span>: <<!-- -->boolean<!-- -->><!-- -->,<!-- --> <span class="lg-highlight-comment">//</span><span class="lg-highlight-comment"> Reject new duplicate </span><span class="lg-highlight-comment">index entries</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">unique</span>: <<!-- -->boolean<!-- -->> <span class="lg-highlight-comment">// Convert an</span><span class="lg-highlight-comment"> index to a </span><span class="lg-highlight-comment">unique index</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">dryRun</span>: <<!-- -->boolean<!-- -->></td></tr><tr class=""><td class="leafygreen-ui-7razhx">} )</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
If the index does not exist, the command errors with the message
<code class="leafygreen-ui-1l06pbn">
"cannot find index <name|keyPattern> for ns <db.collection>"
</code>
.
</p>
<dl class="collflag">
<dt>
<code class="leafygreen-ui-1l06pbn">
index
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-collflag-index" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-collflag-index">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
index
</code>
option can change the following properties of
an
<strong>
existing
</strong>
index:
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:20%"/>
<col style="width:80%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Index Property
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
expireAfterSeconds
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
The number of seconds that determines the expiration
threshold of a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/expire-data/#std-label-ttl-collections">
TTL Collection
<!-- -->
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
If successful, the command returns a document that contains:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
expireAfterSeconds_new
</code>
, the new value for
<code class="leafygreen-ui-1l06pbn">
expireAfterSeconds
</code>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
expireAfterSeconds_old
</code>
, the old value for
<code class="leafygreen-ui-1l06pbn">
expireAfterSeconds
</code>
, if the index had a value for
<code class="leafygreen-ui-1l06pbn">
expireAfterSeconds
</code>
before.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
Modifying the index option
<code class="leafygreen-ui-1l06pbn">
expireAfterSeconds
</code>
resets the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/indexStats/#mongodb-pipeline-pipe.-indexStats">
<code class="leafygreen-ui-1l06pbn">
$indexStats
</code>
</a>
for the index.
</p>
<p class="leafygreen-ui-1kp3ins">
If you use TTL indexes created before MongoDB 5.0, or if you want to
sync data created in MongDB 5.0 with a pre-5.0 installation, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/expire-data/#std-label-expireData-warning">
Indexes Configured Using NaN
</a>
to avoid misconfiguration issues.
</p>
<p class="leafygreen-ui-1kp3ins">
The TTL index
<code class="leafygreen-ui-1l06pbn">
expireAfterSeconds
</code>
value must be within
<code class="leafygreen-ui-1l06pbn">
0
</code>
and
<code class="leafygreen-ui-1l06pbn">
2147483647
</code>
inclusive.
</p>
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
hidden
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
A boolean that determines whether the index is
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/index-hidden/#std-label-index-type-hidden">
hidden
</a>
or not from the query planner.
</p>
<p class="leafygreen-ui-1kp3ins">
If the
<code class="leafygreen-ui-1l06pbn">
hidden
</code>
value changes, the command returns a
document that contains both the old and new values for the
changed property:
<code class="leafygreen-ui-1l06pbn">
hidden_old
</code>
and
<code class="leafygreen-ui-1l06pbn">
hidden_new
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
However, if the
<code class="leafygreen-ui-1l06pbn">
hidden
</code>
value has not changed (i.e. hiding
an already hidden index or unhiding an already unhidden
index), the command omits the
<code class="leafygreen-ui-1l06pbn">
hidden_old
</code>
and
<code class="leafygreen-ui-1l06pbn">
hidden_new
</code>
fields from the output.
</p>
<p class="leafygreen-ui-1kp3ins">
To hide an index, you must have
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/setFeatureCompatibilityVersion/#std-label-view-fcv">
featureCompatibilityVersion
</a>
set to
<code class="leafygreen-ui-1l06pbn">
4.4
</code>
or greater.
</p>
<p class="leafygreen-ui-1kp3ins">
Modifying the index option
<code class="leafygreen-ui-1l06pbn">
hidden
</code>
resets the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/indexStats/#mongodb-pipeline-pipe.-indexStats">
<code class="leafygreen-ui-1l06pbn">
$indexStats
</code>
</a>
for the index if the value changes.
</p>
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
prepareUnique
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
A boolean that determines whether the index will accept
new duplicate entries.
</p>
<p class="leafygreen-ui-1kp3ins">
New duplicate entries fail with DuplicateKey errors when
<code class="leafygreen-ui-1l06pbn">
prepareUnique
</code>
is
<code class="leafygreen-ui-1l06pbn">
true
</code>
. The resulting index can be
converted to a unique index. To convert the index, use
<code class="leafygreen-ui-1l06pbn">
collMod
</code>
with the
<code class="leafygreen-ui-1l06pbn">
unique
</code>
option.
</p>
<p class="leafygreen-ui-1kp3ins">
If an existing index is updated so that
<code class="leafygreen-ui-1l06pbn">
prepareUnique
</code>
is
<code class="leafygreen-ui-1l06pbn">
true
</code>
, the index is not checked for pre-existing,
duplicate index entries.
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
6.0
</em>
.
</p>
</div>
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
unique
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
A boolean that determines whether the index is unique.
</p>
<p class="leafygreen-ui-1kp3ins">
A value of
<code class="leafygreen-ui-1l06pbn">
false
</code>
is not supported.
</p>
<p class="leafygreen-ui-1kp3ins">
When
<code class="leafygreen-ui-1l06pbn">
unique
</code>
is
<code class="leafygreen-ui-1l06pbn">
true
</code>
,
<code class="leafygreen-ui-1l06pbn">
collMod
</code>
scans the
<code class="leafygreen-ui-1l06pbn">
keyPattern
</code>
index for duplicates and then converts it to
a unique index if there are no duplicate index entries.
</p>
<p class="leafygreen-ui-1kp3ins">
If duplicates are detected during the initial scan,
<code class="leafygreen-ui-1l06pbn">
collMod
</code>
returns
<code class="leafygreen-ui-1l06pbn">
CannotConvertIndexToUnique
</code>
and a list
of conflicting documents. To convert an index with duplicate
entries to a unique index, correct any reported conflicts and
rerun
<code class="leafygreen-ui-1l06pbn">
collMod
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
To end a conversion, set
<code class="leafygreen-ui-1l06pbn">
prepareUnique
</code>
to
<code class="leafygreen-ui-1l06pbn">
false
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
To see an example of how to convert a non-unique index to a
unique index, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/index-unique/convert-to-unique/#std-label-index-convert-to-unique">
Convert an Existing Index to a Unique Index
<!-- -->
.
</a>
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
6.0
</em>
.
</p>
</div>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</dd>
</dl>
<dl class="collflag">
<dt>
<code class="leafygreen-ui-1l06pbn">
dryRun
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-collflag-dryRun" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-collflag-dryRun">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
<em>
Default value:
</em>
<code class="leafygreen-ui-1l06pbn">
false
</code>
</p>
<p class="leafygreen-ui-1kp3ins">
Only used when
<code class="leafygreen-ui-1l06pbn">
index.unique
</code>
is
<code class="leafygreen-ui-1l06pbn">
true
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
Before you convert a non-unique index to a unique index, you can run
the
<code class="leafygreen-ui-1l06pbn">
collMod
</code>
command with
<code class="leafygreen-ui-1l06pbn">
dryRun: true
</code>
. If you do, MongoDB
checks the collection for duplicate keys and returns any violations.
</p>
<p class="leafygreen-ui-1kp3ins">
Use
<code class="leafygreen-ui-1l06pbn">
dryRun: true
</code>
to confirm that you can convert an index to be
unique without any errors.
</p>
</dd>
</dl>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Validate Documents
<a class="headerlink leafygreen-ui-1kepx47" href="#validate-documents" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="validate-documents">
</div>
</a>
</h3>
<dl class="collflag">
<dt>
<code class="leafygreen-ui-1l06pbn">
validator
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-collflag-validator" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-collflag-validator">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
validator
</code>
allows users to specify
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/schema-validation/#std-label-schema-validation-overview">
validation rules
or expressions
</a>
for a collection.
</p>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
validator
</code>
option takes a document that specifies the
validation rules or expressions. You can specify the expressions
using the same operators as the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/#std-label-query-selectors">
query operators
</a>
with the exception of
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/near/#mongodb-query-op.-near">
<code class="leafygreen-ui-1l06pbn">
$near
</code>
</a>
,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/nearSphere/#mongodb-query-op.-nearSphere">
<code class="leafygreen-ui-1l06pbn">
$nearSphere
</code>
</a>
,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/text/#mongodb-query-op.-text">
<code class="leafygreen-ui-1l06pbn">
$text
</code>
</a>
, and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/query/where/#mongodb-query-op.-where">
<code class="leafygreen-ui-1l06pbn">
$where
</code>
.
</a>
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Validation occurs during updates and inserts. Existing
documents do not undergo validation checks until modification.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
You cannot specify a validator for collections in the
<code class="leafygreen-ui-1l06pbn">
admin
</code>
,
<code class="leafygreen-ui-1l06pbn">
local
</code>
, and
<code class="leafygreen-ui-1l06pbn">
config
</code>
databases.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
You cannot specify a validator for
<code class="leafygreen-ui-1l06pbn">
system.*
</code>
collections.
</p>
</li>
</ul>
</div>
</div>
</dd>
</dl>
<dl class="collflag">
<dt>
<code class="leafygreen-ui-1l06pbn">
validationLevel
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-collflag-validationLevel" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-collflag-validationLevel">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
validationLevel
</code>
determines how strictly MongoDB applies the
validation rules to existing documents during an update.
</p>
<dl>
<dt>
<code class="leafygreen-ui-1l06pbn">
"off"
</code>
</dt>
<dd class="css-1ufxuu7">
No validation for inserts or updates.
</dd>
<dt>
<code class="leafygreen-ui-1l06pbn">
"strict"
</code>
</dt>
<dd class="css-1ufxuu7">
<strong>
Default
</strong>
Apply validation rules to all inserts and
all updates.
</dd>
<dt>
<code class="leafygreen-ui-1l06pbn">
"moderate"
</code>
</dt>
<dd class="css-1ufxuu7">
Apply validation rules to inserts and to updates on
existing
<em>
valid
</em>
documents. Do not apply rules to
updates on existing
<em>
invalid
</em>
documents.
</dd>
</dl>
<p class="leafygreen-ui-1kp3ins">
To see an example that uses
<code class="leafygreen-ui-1l06pbn">
validationLevel
</code>
, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/schema-validation/specify-validation-level/#std-label-schema-specify-validation-level">
Specify Validation Level for Existing Documents
<!-- -->
.
</a>
</p>
</dd>
</dl>
<dl class="collflag">
<dt>
<code class="leafygreen-ui-1l06pbn">
validationAction
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-collflag-validationAction" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-collflag-validationAction">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
validationAction
</code>
option determines whether to
<code class="leafygreen-ui-1l06pbn">
error
</code>
on
invalid documents or just
<code class="leafygreen-ui-1l06pbn">
warn
</code>
about the violations but allow
invalid documents.
</p>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Validation of documents only applies to those documents as
determined by the
<code class="leafygreen-ui-1l06pbn">
validationLevel
</code>
.
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To see an example that uses
<code class="leafygreen-ui-1l06pbn">
validationAction
</code>
, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/schema-validation/handle-invalid-documents/#std-label-schema-validation-handle-invalid-docs">
Choose How to Handle Invalid Documents
<!-- -->
.
</a>
</p>
</dd>
</dl>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Modify Views
<a class="headerlink leafygreen-ui-1kepx47" href="#modify-views" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="modify-views">
</div>
</a>
</h3>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
The view modified by this command does not refer to materialized
views. For discussion of on-demand materialized views, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/merge/#mongodb-pipeline-pipe.-merge">
<code class="leafygreen-ui-1l06pbn">
$merge
</code>
</a>
instead.
</p>
</div>
</div>
<dl class="collflag">
<dt>
<code class="leafygreen-ui-1l06pbn">
viewOn
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-collflag-viewOn" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-collflag-viewOn">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The underlying source collection or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/views/#std-label-views-landing-page">
view
</a>
. The view definition is determined by applying
the specified
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-collflag-pipeline" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
pipeline
</code>
</span>
</a>
to this source.
</p>
<p class="leafygreen-ui-1kp3ins">
Required if modifying a view on a MongoDB deployment that is running
with access control.
</p>
</dd>
</dl>
<dl class="collflag">
<dt>
<code class="leafygreen-ui-1l06pbn">
pipeline
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-collflag-pipeline" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-collflag-pipeline">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/aggregation-pipeline/#std-label-aggregation-pipeline">
aggregation pipeline
</a>
that defines
the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/views/#std-label-views-landing-page">
view
<!-- -->
.
</a>
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
A view definition
<code class="leafygreen-ui-1l06pbn">
pipeline
</code>
cannot include the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/out/#mongodb-pipeline-pipe.-out">
<code class="leafygreen-ui-1l06pbn">
$out
</code>
</a>
or
the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/merge/#mongodb-pipeline-pipe.-merge">
<code class="leafygreen-ui-1l06pbn">
$merge
</code>
</a>
stage. This restriction also applies to
embedded pipelines, such as pipelines used in
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/lookup/#mongodb-pipeline-pipe.-lookup">
<code class="leafygreen-ui-1l06pbn">
$lookup
</code>
</a>
or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/facet/#mongodb-pipeline-pipe.-facet">
<code class="leafygreen-ui-1l06pbn">
$facet
</code>
</a>
stages.
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Required if modifying a view on a MongoDB deployment that is running
with access control.
</p>
<p class="leafygreen-ui-1kp3ins">
The view definition is public; i.e.
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.getCollectionInfos/#mongodb-method-db.getCollectionInfos">
<code class="leafygreen-ui-1l06pbn">
db.getCollectionInfos()
</code>
</a>
and
<code class="leafygreen-ui-1l06pbn">
explain
</code>
operations on the view will include the pipeline that
defines the view. As such, avoid referring directly to sensitive fields
and values in view definitions.
</p>
</dd>
</dl>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.runCommand( {\n collMod: \"myView\",\n viewOn: \"activities\",\n pipeline: [\n { $match: { status: \"Q\" } },\n { $project: { user: 1, date: 1, description: 1} } ]\n} )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">runCommand</span>( <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">collMod</span>: <span class="lg-highlight-string">"myView"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">viewOn</span>: <span class="lg-highlight-string">"activities"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">pipeline</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">$match</span>: <!-- -->{ <span class="lg-highlight-attr">status</span>: <span class="lg-highlight-string">"Q"</span> } }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">$project</span>: <!-- -->{ <span class="lg-highlight-attr">user</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-attr">date</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-attr">description</span>: <span class="lg-highlight-number">1</span>} } ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx">} )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</div>
</button>
</div>
</div>
</div>
</div>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Modify Time Series Collections
<a class="headerlink leafygreen-ui-1kepx47" href="#modify-time-series-collections" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="modify-time-series-collections">
</div>
</a>
</h3>
<dl class="collflag">
<dt>
<code class="leafygreen-ui-1l06pbn">
expireAfterSeconds
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-collflag-expireAfterSeconds" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-collflag-expireAfterSeconds">
</div>
</a>
</dt>
<dd>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
This is distinct from using the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-collflag-index" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
index
</code>
</span>
</a>
option with the
<code class="leafygreen-ui-1l06pbn">
expireAfterSeconds
</code>
property to change the expiration time
for a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/expire-data/#std-label-ttl-collections">
TTL Collection
<!-- -->
.
</a>
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To enable automatic document removal or modify the current
expiration interval for a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/timeseries-collections/#std-label-manual-timeseries-collection">
time series collection
</a>
, change the
<code class="leafygreen-ui-1l06pbn">
expireAfterSeconds
</code>
value:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.runCommand( {\n collMod: <collection>,\n expireAfterSeconds: <number> | \"off\"\n} )","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">runCommand</span>( <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">collMod</span>: <<!-- -->collection<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">expireAfterSeconds</span>: <<!-- -->number<!-- -->> <!-- -->| <span class="lg-highlight-string">"off"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">} )</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Set
<code class="leafygreen-ui-1l06pbn">
expireAfterSeconds
</code>
to
<code class="leafygreen-ui-1l06pbn">
"off"
</code>
to disable automatic removal,
or a non-negative decimal number (
<code class="leafygreen-ui-1l06pbn">
>=0
</code>
) to specify the number of
seconds after which documents expire.
</p>
</dd>
</dl>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/timeseries/timeseries-automatic-removal/#std-label-manual-timeseries-automatic-removal">
Set up Automatic Removal for Time Series Collections (TTL)
</a>
</p>
</div>
</div>
<dl class="collflag">
<dt>
<code class="leafygreen-ui-1l06pbn">
granularity
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-collflag-granularity" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-collflag-granularity">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
To modify the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/timeseries/timeseries-granularity/#std-label-timeseries-granularity">
granularity
</a>
of a time
series collection, you can increase
<code class="leafygreen-ui-1l06pbn">
timeseries.granularity
</code>
from a shorter unit of time to a longer one:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.runCommand( {\n collMod: \"weather24h\",\n timeseries: { granularity: \"seconds\" | \"minutes\" | \"hours\" }\n} )","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">runCommand</span>( <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">collMod</span>: <span class="lg-highlight-string">"weather24h"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">timeseries</span>: <!-- -->{ <span class="lg-highlight-attr">granularity</span>: <span class="lg-highlight-string">"seconds"</span> <!-- -->| <span class="lg-highlight-string">"minutes"</span> <!-- -->| <span class="lg-highlight-string">"hours"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">} )</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To update the custom bucketing fields
<code class="leafygreen-ui-1l06pbn">
bucketRoundingSeconds
</code>
and
<code class="leafygreen-ui-1l06pbn">
bucketMaxSpanSeconds
</code>
instead of
<code class="leafygreen-ui-1l06pbn">
granularity
</code>
, include both
custom fields in the
<code class="leafygreen-ui-1l06pbn">
collMod
</code>
command and set them to the
same value:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.runCommand( {\n collMod: \"weather24h\",\n timeseries: {\n bucketRoundingSeconds: 86400,\n bucketMaxSpanSeconds: 86400\n }\n} )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">runCommand</span>( <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">collMod</span>: <span class="lg-highlight-string">"weather24h"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">timeseries</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">bucketRoundingSeconds</span>: <span class="lg-highlight-number">86400</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">bucketMaxSpanSeconds</span>: <span class="lg-highlight-number">86400</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">} )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
You cannot decrease the granularity interval or the custom bucketing
values.
</p>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
You cannot downgrade below MongoDB 6.3 if any time series
collections explicitly specify the custom bucketing fields
<code class="leafygreen-ui-1l06pbn">
bucketMaxSpanSeconds
</code>
and
<code class="leafygreen-ui-1l06pbn">
bucketRoundingSeconds
</code>
. If
possible, convert to the corresponding
<code class="leafygreen-ui-1l06pbn">
granularity
</code>
. If you
cannot, you must drop the collection before downgrading.
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To convert a collection from custom bucketing to a
<code class="leafygreen-ui-1l06pbn">
granularity
</code>
,
value, both
<code class="leafygreen-ui-1l06pbn">
bucketMaxSpanSeconds
</code>
and
<code class="leafygreen-ui-1l06pbn">
bucketRoundingSeconds
</code>
must be less than or equal to the
<code class="leafygreen-ui-1l06pbn">
granularity
</code>
equivalent:
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
<code class="leafygreen-ui-1l06pbn">
granularity
</code>
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
<code class="leafygreen-ui-1l06pbn">
bucketRoundingSeconds
</code>
limit (inclusive)
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
<code class="leafygreen-ui-1l06pbn">
bucketMaxSpanSeconds
</code>
limit (inclusive)
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
seconds
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
60
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
3600
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
minutes
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
3600
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
86400
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
hours
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
86400
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
2592000
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/timeseries/timeseries-granularity/#std-label-timeseries-granularity">
Set Granularity for Time Series Data
</a>
</p>
</div>
</div>
</dd>
</dl>
<span class="leafygreen-ui-1qnjd6d" id="std-label-resize-capped-collection">
</span>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Resize a Capped Collection
<a class="headerlink leafygreen-ui-1kepx47" href="#resize-a-capped-collection" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="resize-a-capped-collection">
</div>
</a>
</h3>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
6.0
</em>
.
</p>
</div>
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 6.0, you can resize a capped collection. To change a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/capped-collections/#std-label-manual-capped-collection">
capped collection's
</a>
maximum size in
bytes, use the
<code class="leafygreen-ui-1l06pbn">
cappedSize
</code>
option. To change the maximum number of
documents in an existing capped collection, use the
<code class="leafygreen-ui-1l06pbn">
cappedMax
</code>
option.
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
You can't use these commands to resize the oplog. Use
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/replSetResizeOplog/#mongodb-dbcommand-dbcmd.replSetResizeOplog">
<code class="leafygreen-ui-1l06pbn">
replSetResizeOplog
</code>
</a>
instead.
</p>
</div>
</div>
<dl class="collflag">
<dt>
<code class="leafygreen-ui-1l06pbn">
cappedSize
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-collflag-cappedSize" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-collflag-cappedSize">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Specifies a new maximum size, in bytes, for a capped collection.
<code class="leafygreen-ui-1l06pbn">
cappedSize
</code>
must be greater than
<code class="leafygreen-ui-1l06pbn">
0
</code>
and less than
<code class="leafygreen-ui-1l06pbn">
1e+15
</code>
(1 PB).
</p>
</dd>
</dl>
<dl class="collflag">
<dt>
<code class="leafygreen-ui-1l06pbn">
cappedMax
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-collflag-cappedMax" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-collflag-cappedMax">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Specifies a new maximum number of documents in a capped collection. Setting
<code class="leafygreen-ui-1l06pbn">
cappedMax
</code>
less than or equal to
<code class="leafygreen-ui-1l06pbn">
0
</code>
implies no limit.
</p>
</dd>
</dl>
<p class="leafygreen-ui-1kp3ins">
For example, the following command sets the maximum size of a capped collection
to 100000 bytes and sets the maximum number of documents in the collection to 500:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.runCommand( {\n collMod: <collection>,\n cappedSize: 100000,\n cappedMax: 500\n} )","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">runCommand</span>( <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">collMod</span>: <<!-- -->collection<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">cappedSize</span>: <span class="lg-highlight-number">100000</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">cappedMax</span>: <span class="lg-highlight-number">500</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">} )</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-collMod-change-stream-pre-and-post-images">
</span>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Change Streams with Document Pre- and Post-Images
<a class="headerlink leafygreen-ui-1kepx47" href="#change-streams-with-document-pre--and-post-images" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="change-streams-with-document-pre--and-post-images">
</div>
</a>
</h3>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
6.0
</em>
.
</p>
</div>
<dl class="collflag">
<dt>
<code class="leafygreen-ui-1l06pbn">
changeStreamPreAndPostImages
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-collflag-changeStreamPreAndPostImages" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-collflag-changeStreamPreAndPostImages">
</div>
</a>
</dt>
<dd>
</dd>
</dl>
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 6.0, you can use
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/change-events/#std-label-change-stream-output">
change stream events
</a>
to output the version of a document before and
after changes (the document pre- and post-images):
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The pre-image is the document before it was replaced, updated, or
deleted. There is no pre-image for an inserted document.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The post-image is the document after it was inserted, replaced, or
updated. There is no post-image for a deleted document.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Enable
<code class="leafygreen-ui-1l06pbn">
changeStreamPreAndPostImages
</code>
for a collection using
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.createCollection/#mongodb-method-db.createCollection">
<code class="leafygreen-ui-1l06pbn">
db.createCollection()
</code>
</a>
,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/create/#mongodb-dbcommand-dbcmd.create">
<code class="leafygreen-ui-1l06pbn">
create
</code>
</a>
, or
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.collMod" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
collMod
</code>
.
</span>
</a>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
To use
<code class="leafygreen-ui-1l06pbn">
collMod
</code>
to enable change stream pre- and post-images
for a collection, use the
<code class="leafygreen-ui-1l06pbn">
changeStreamPreAndPostImages
</code>
field:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.runCommand( {\n collMod: <collection>,\n changeStreamPreAndPostImages: { enabled: <boolean> }\n} )","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">runCommand</span>( <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">collMod</span>: <<!-- -->collection<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">changeStreamPreAndPostImages</span>: <!-- -->{ <span class="lg-highlight-attr">enabled</span>: <<!-- -->boolean<!-- -->> <!-- -->}</td></tr><tr class=""><td class="leafygreen-ui-7razhx">} )</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To enable change stream pre- and post-images for a collection, set
<code class="leafygreen-ui-1l06pbn">
changeStreamPreAndPostImages
</code>
to
<code class="leafygreen-ui-1l06pbn">
true
</code>
. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.runCommand( {\n collMod: \"orders\",\n changeStreamPreAndPostImages: { enabled: true }\n} )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">runCommand</span>( <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">collMod</span>: <span class="lg-highlight-string">"orders"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">changeStreamPreAndPostImages</span>: <!-- -->{ <span class="lg-highlight-attr">enabled</span>: <span class="lg-highlight-literal">true</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">} )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To disable change stream pre- and post-images for a collection, set
<code class="leafygreen-ui-1l06pbn">
changeStreamPreAndPostImages
</code>
to
<code class="leafygreen-ui-1l06pbn">
false
</code>
. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.runCommand( {\n collMod: \"orders\",\n changeStreamPreAndPostImages: { enabled: false }\n} )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">runCommand</span>( <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">collMod</span>: <span class="lg-highlight-string">"orders"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">changeStreamPreAndPostImages</span>: <!-- -->{ <span class="lg-highlight-attr">enabled</span>: <span class="lg-highlight-literal">false</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">} )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Pre- and post-images are not available for a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/change-events/#std-label-change-stream-output">
change stream event
</a>
if the images were:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Not enabled on the collection at the time of a document update or
delete operation.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Removed after the pre- and post-image retention time set in
<code class="leafygreen-ui-1l06pbn">
expireAfterSeconds
</code>
.
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The following example sets
<code class="leafygreen-ui-1l06pbn">
expireAfterSeconds
</code>
to
<code class="leafygreen-ui-1l06pbn">
100
</code>
seconds on an entire cluster:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"use admin\ndb.runCommand( {\n setClusterParameter:\n { changeStreamOptions: {\n preAndPostImages: { expireAfterSeconds: 100 }\n } }\n} )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">use admin</td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">runCommand</span>( <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">setClusterParameter</span>:</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">changeStreamOptions</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">preAndPostImages</span>: <!-- -->{ <span class="lg-highlight-attr">expireAfterSeconds</span>: <span class="lg-highlight-number">100</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">} )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The following example returns the current
<code class="leafygreen-ui-1l06pbn">
changeStreamOptions
</code>
settings, including
<code class="leafygreen-ui-1l06pbn">
expireAfterSeconds
</code>
:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand( { getClusterParameter: \"changeStreamOptions\" } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>( <!-- -->{ <span class="lg-highlight-attr">getClusterParameter</span>: <span class="lg-highlight-string">"changeStreamOptions"</span> } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Setting
<code class="leafygreen-ui-1l06pbn">
expireAfterSeconds
</code>
to
<code class="leafygreen-ui-1l06pbn">
off
</code>
uses the default retention
policy: pre- and post-images are retained until the corresponding
change stream events are removed from the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-oplog">
oplog
<!-- -->
.
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
If a change stream event is removed from the oplog, then the
corresponding pre- and post-images are also deleted regardless of
the
<code class="leafygreen-ui-1l06pbn">
expireAfterSeconds
</code>
pre- and post-image retention time.
</p>
</li>
</ul>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
Additional considerations:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Enabling pre- and post-images consumes storage space and adds
processing time. Only enable pre- and post-images if you need them.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Limit the change stream event size to less than 16 megabytes. To limit
the event size, you can:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Limit the document size to 8 megabytes. You can request pre- and
post-images simultaneously in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/change-events/#std-label-change-stream-output">
change stream output
</a>
if other change stream event fields like
<code class="leafygreen-ui-1l06pbn">
updateDescription
</code>
are not large.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Request only post-images in the change stream output for documents
up to 16 megabytes if other change stream event fields like
<code class="leafygreen-ui-1l06pbn">
updateDescription
</code>
are not large.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Request only pre-images in the change stream output for documents up
to 16 megabytes if:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
document updates affect only a small fraction of the document
structure or content,
<em>
and
</em>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
do not cause a
<code class="leafygreen-ui-1l06pbn">
replace
</code>
change event. A
<code class="leafygreen-ui-1l06pbn">
replace
</code>
event
always includes the post-image.
</p>
</li>
</ul>
</li>
</ul>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
To request a pre-image, you set
<code class="leafygreen-ui-1l06pbn">
fullDocumentBeforeChange
</code>
to
<code class="leafygreen-ui-1l06pbn">
required
</code>
or
<code class="leafygreen-ui-1l06pbn">
whenAvailable
</code>
in
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.watch/#mongodb-method-db.collection.watch">
<code class="leafygreen-ui-1l06pbn">
db.collection.watch()
</code>
</a>
.
To request a post-image, you set
<code class="leafygreen-ui-1l06pbn">
fullDocument
</code>
using the same
method.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Pre-images are written to the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/system-collections/#mongodb-data-config.system.preimages">
<code class="leafygreen-ui-1l06pbn">
config.system.preimages
</code>
</a>
collection.
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
config.system.preimages
</code>
collection may become large. To
limit the collection size, you can set
<code class="leafygreen-ui-1l06pbn">
expireAfterSeconds
</code>
time for the pre-images as shown earlier.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Pre-images are removed asynchronously by a background process.
</p>
</li>
</ul>
</li>
</ul>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
Backward-Incompatible Feature
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 6.0, if you are using document pre- and post-images
for
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/change-events/#std-label-change-stream-output">
change streams
</a>
, you must disable
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-collMod-change-stream-pre-and-post-images" target="_self">
<span>
changeStreamPreAndPostImages
</span>
</a>
for each collection using
the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.collMod" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
collMod
</code>
</span>
</a>
command before you can downgrade to an earlier
MongoDB version.
</p>
</div>
</div>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For change stream events and output, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/change-events/#std-label-change-stream-output">
Change Events
<!-- -->
.
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
To watch a collection for changes, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.watch/#mongodb-method-db.collection.watch">
<code class="leafygreen-ui-1l06pbn">
db.collection.watch()
</code>
.
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For complete examples with the change stream output, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.watch/#std-label-db.collection.watch-change-streams-pre-and-post-images-example">
Change Streams with Document Pre- and Post-Images
<!-- -->
.
</a>
</p>
</li>
</ul>
</div>
</div>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Attach Comment
<a class="headerlink leafygreen-ui-1kepx47" href="#attach-comment" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="attach-comment">
</div>
</a>
</h3>
<dl class="collflag">
<dt>
<code class="leafygreen-ui-1l06pbn">
comment
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-collflag-comment" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-collflag-comment">
</div>
</a>
</dt>
<dd>
</dd>
</dl>
<p class="leafygreen-ui-1kp3ins">
Optional. You can attach a comment to this command. The comment must be
a top-level field and can be any valid
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/bson-types/#std-label-bson-types">
BSON type
</a>
.
The comment that you specify appears alongside records of this command
in the following locations:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/log-messages/#std-label-log-messages-ref">
mongod log messages
</a>
, in the
<code class="leafygreen-ui-1l06pbn">
attr.command.cursor.comment
</code>
field.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/database-profiler/#std-label-profiler">
Database profiler
</a>
output, in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/database-profiler/#mongodb-data-system.profile.command">
<code class="leafygreen-ui-1l06pbn">
command.comment
</code>
</a>
field.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/currentOp/#mongodb-dbcommand-dbcmd.currentOp">
<code class="leafygreen-ui-1l06pbn">
currentOp
</code>
</a>
output, in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/currentOp/#mongodb-data-currentOp.command">
<code class="leafygreen-ui-1l06pbn">
command.comment
</code>
</a>
field.
</p>
</li>
</ul>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Write Concern
<a class="headerlink leafygreen-ui-1kepx47" href="#write-concern" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="write-concern">
</div>
</a>
</h3>
<dl class="collflag">
<dt>
<code class="leafygreen-ui-1l06pbn">
w
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-collflag-w" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-collflag-w">
</div>
</a>
</dt>
<dd>
</dd>
</dl>
<p class="leafygreen-ui-1kp3ins">
Optional. A document expressing the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/write-concern/#std-label-write-concern">
write concern
</a>
of the
<code class="leafygreen-ui-1l06pbn">
collMod
</code>
command.
</p>
<p class="leafygreen-ui-1kp3ins">
Omit to use the default write concern.
</p>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Access Control
<a class="headerlink leafygreen-ui-1kepx47" href="#access-control" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="access-control">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
If the deployment enforces authentication/authorization, you must have
the following privilege to run the
<code class="leafygreen-ui-1l06pbn">
collMod
</code>
command:
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Task
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Required Privileges
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Modify a non-capped collection
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/privilege-actions/#mongodb-authaction-collMod">
<code class="leafygreen-ui-1l06pbn">
collMod
</code>
</a>
in the database
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Modify a view
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/privilege-actions/#mongodb-authaction-collMod">
<code class="leafygreen-ui-1l06pbn">
collMod
</code>
</a>
in the database and either:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
no
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/privilege-actions/#mongodb-authaction-find">
<code class="leafygreen-ui-1l06pbn">
find
</code>
</a>
on the view to modify,
<strong>
or
</strong>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
both
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/privilege-actions/#mongodb-authaction-find">
<code class="leafygreen-ui-1l06pbn">
find
</code>
</a>
on the view to modify and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/privilege-actions/#mongodb-authaction-find">
<code class="leafygreen-ui-1l06pbn">
find
</code>
</a>
on the source collection/view.
</p>
</li>
</ul>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<p class="leafygreen-ui-1kp3ins">
The built-in role
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/built-in-roles/#mongodb-authrole-dbAdmin">
<code class="leafygreen-ui-1l06pbn">
dbAdmin
</code>
</a>
provides the required privileges.
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Behavior
<a class="headerlink leafygreen-ui-1kepx47" href="#behavior" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="behavior">
</div>
</a>
</h2>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Resource Locking
<a class="headerlink leafygreen-ui-1kepx47" href="#resource-locking" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="resource-locking">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.collMod" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
collMod
</code>
</span>
</a>
command obtains a collection lock on
the specified collection for the duration of the operation.
</p>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Examples
<a class="headerlink leafygreen-ui-1kepx47" href="#examples" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="examples">
</div>
</a>
</h2>
<span class="leafygreen-ui-1qnjd6d" id="std-label-ex-change-exp-value">
</span>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Change Expiration Value for Indexes
<a class="headerlink leafygreen-ui-1kepx47" href="#change-expiration-value-for-indexes" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="change-expiration-value-for-indexes">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The following example updates the
<code class="leafygreen-ui-1l06pbn">
expireAfterSeconds
</code>
property of an
existing TTL index
<code class="leafygreen-ui-1l06pbn">
{ lastAccess: 1 }
</code>
on a collection named
<code class="leafygreen-ui-1l06pbn">
user_log
</code>
. The current
<code class="leafygreen-ui-1l06pbn">
expireAfterSeconds
</code>
property for the index
is set to
<code class="leafygreen-ui-1l06pbn">
1800
</code>
seconds (or 30 minutes) and the example changes the
value to
<code class="leafygreen-ui-1l06pbn">
3600
</code>
seconds (or 60 minutes).
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.runCommand({\n collMod: \"user_log\",\n index: {\n keyPattern: { lastAccess: 1 },\n expireAfterSeconds: 3600\n }\n})","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">runCommand</span>(<!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">collMod</span>: <span class="lg-highlight-string">"user_log"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">index</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">keyPattern</span>: <!-- -->{ <span class="lg-highlight-attr">lastAccess</span>: <span class="lg-highlight-number">1</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">expireAfterSeconds</span>: <span class="lg-highlight-number">3600</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">})</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
If successful, the operation returns a document that includes both the
old and new value for the changed property:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ \"expireAfterSeconds_old\" : 1800, \"expireAfterSeconds_new\" : 3600, \"ok\" : 1 }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"expireAfterSeconds_old"</span> <!-- -->: <span class="lg-highlight-number">1800</span>, <span class="lg-highlight-string">"expireAfterSeconds_new"</span> <!-- -->: <span class="lg-highlight-number">3600</span>, <span class="lg-highlight-string">"ok"</span> <!-- -->: <span class="lg-highlight-number">1</span> }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Hide an Index from the Query Planner
<a class="headerlink leafygreen-ui-1kepx47" href="#hide-an-index-from-the-query-planner" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="hide-an-index-from-the-query-planner">
</div>
</a>
</h3>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
To hide an index, you must have
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/setFeatureCompatibilityVersion/#std-label-view-fcv">
featureCompatibilityVersion
</a>
set to
<code class="leafygreen-ui-1l06pbn">
5.0
</code>
or greater.
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The following example
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/index-hidden/#std-label-index-type-hidden">
hides
</a>
an existing
index on the
<code class="leafygreen-ui-1l06pbn">
orders
</code>
collection. Specifically, the operation hides
the index with the specification
<code class="leafygreen-ui-1l06pbn">
{ shippedDate: 1 }
</code>
from the query
planner.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.runCommand( {\n collMod: \"orders\",\n index: {\n keyPattern: { shippedDate: 1 },\n hidden: true\n }\n} )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">runCommand</span>( <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">collMod</span>: <span class="lg-highlight-string">"orders"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">index</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">keyPattern</span>: <!-- -->{ <span class="lg-highlight-attr">shippedDate</span>: <span class="lg-highlight-number">1</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">hidden</span>: <span class="lg-highlight-literal">true</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">} )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
If successful, the operation returns a document that includes both the
old and new value for the changed property:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ \"hidden_old\" : false, \"hidden_new\" : true, \"ok\" : 1 }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"hidden_old"</span> <!-- -->: <span class="lg-highlight-literal">false</span>, <span class="lg-highlight-string">"hidden_new"</span> <!-- -->: <span class="lg-highlight-literal">true</span>, <span class="lg-highlight-string">"ok"</span> <!-- -->: <span class="lg-highlight-number">1</span> }</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
If the operation is successful but the
<code class="leafygreen-ui-1l06pbn">
hidden
</code>
value has not
changed (specifically, hiding an already hidden index or unhiding an already
unhidden index), the command omits the
<code class="leafygreen-ui-1l06pbn">
hidden_old
</code>
and
<code class="leafygreen-ui-1l06pbn">
hidden_new
</code>
fields from the output.
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To hide a text index, you must specify the index by
<code class="leafygreen-ui-1l06pbn">
name
</code>
and not by
<code class="leafygreen-ui-1l06pbn">
keyPattern
</code>
.
</p>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/index-hidden/#std-label-index-type-hidden">
Hidden Indexes
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.hideIndex/#mongodb-method-db.collection.hideIndex">
<code class="leafygreen-ui-1l06pbn">
db.collection.hideIndex()
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.unhideIndex/#mongodb-method-db.collection.unhideIndex">
<code class="leafygreen-ui-1l06pbn">
db.collection.unhideIndex()
</code>
</a>
</p>
</li>
</ul>
</div>
</div>
</section>
</section>
</section>
|
https://www.mongodb.com/docs/manual/tutorial/change-hostnames-in-a-replica-set/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Change Hostnames in a Self-Managed Replica Set
<a class="headerlink leafygreen-ui-1kepx47" href="#change-hostnames-in-a-self-managed-replica-set" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="change-hostnames-in-a-self-managed-replica-set">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#overview" target="_self">
<span>
Overview
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#assumptions" target="_self">
<span>
Assumptions
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#change-hostnames-while-maintaining-replica-set-availability" target="_self">
<span>
Change Hostnames while Maintaining Replica Set Availability
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#change-all-hostnames-at-the-same-time" target="_self">
<span>
Change All Hostnames at the Same Time
</span>
</a>
</li>
</ul>
</div>
<p class="leafygreen-ui-1kp3ins">
For most
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-replica-set">
replica sets
</a>
, the hostnames in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-configuration/#mongodb-rsconf-rsconf.members-n-.host">
<code class="leafygreen-ui-1l06pbn">
members[n].host
</code>
</a>
field never change.
However, if organizational needs change, you might need to migrate some
or all host names.
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Always use resolvable hostnames for the value of the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-configuration/#mongodb-rsconf-rsconf.members-n-.host">
<code class="leafygreen-ui-1l06pbn">
members[n].host
</code>
</a>
field in the replica
set configuration to avoid confusion and complexity.
</p>
</div>
</div>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
To avoid configuration updates due to IP address changes, use DNS
hostnames instead of IP addresses. It is particularly important to
use a DNS hostname instead of an IP address when configuring replica
set members or sharded cluster members.
</p>
<p class="leafygreen-ui-1kp3ins">
Use hostnames instead of IP addresses to configure clusters across a
split network horizon. Starting in MongoDB 5.0, nodes that are only
configured with an IP address fail startup validation and do not start.
</p>
</div>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Overview
<a class="headerlink leafygreen-ui-1kepx47" href="#overview" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="overview">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
This document provides two separate procedures for changing the
hostnames in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-configuration/#mongodb-rsconf-rsconf.members-n-.host">
<code class="leafygreen-ui-1l06pbn">
members[n].host
</code>
</a>
field. Use either of the following approaches:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-replica-set-change-hostname-no-downtime" target="_self">
<span>
Change hostnames without disrupting availability
</span>
</a>
. This approach ensures your
applications will always be able to read and write data to the replica
set, but the approach can take a long time and may incur downtime at
the application layer.
</p>
<p class="leafygreen-ui-1kp3ins">
If you use the first procedure, you must configure your applications
to connect to the replica set at both the old and new locations, which
often requires a restart and reconfiguration at the application layer
and which may affect the availability of your applications.
Re-configuring applications is beyond the scope of this document.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-replica-set-change-hostname-downtime" target="_self">
<span>
Stop all members running on the old hostnames at once
</span>
</a>
. This approach has a shorter
maintenance window, but the replica set will be unavailable during
the operation.
</p>
</li>
</ul>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/rs.reconfig/#std-label-replica-set-reconfiguration-usage">
Replica Set Reconfiguration Process
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/deploy-replica-set/">
Deploy a Self-Managed Replica Set
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/expand-replica-set/">
Add Members to a Self-Managed Replica Set
</a>
</p>
</li>
</ul>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-procedure-assumption-change-hostnames-replica-set">
</span>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Assumptions
<a class="headerlink leafygreen-ui-1kepx47" href="#assumptions" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="assumptions">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
Given a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-replica-set">
replica set
</a>
with three members:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
database0.example.com:27017
</code>
(the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-primary">
primary
<!-- -->
)
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
database1.example.com:27017
</code>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
database2.example.com:27017
</code>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
And with the following
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/rs.conf/#mongodb-method-rs.conf">
<code class="leafygreen-ui-1l06pbn">
rs.conf()
</code>
</a>
output:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n \"_id\" : \"rs\",\n \"version\" : 3,\n \"members\" : [\n {\n \"_id\" : 0,\n \"host\" : \"database0.example.com:27017\"\n },\n {\n \"_id\" : 1,\n \"host\" : \"database1.example.com:27017\"\n },\n {\n \"_id\" : 2,\n \"host\" : \"database2.example.com:27017\"\n }\n ]\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"rs"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"version"</span> <!-- -->: <span class="lg-highlight-number">3</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"members"</span> <!-- -->: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"host"</span> <!-- -->: <span class="lg-highlight-string">"database0.example.com:27017"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"host"</span> <!-- -->: <span class="lg-highlight-string">"database1.example.com:27017"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">2</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"host"</span> <!-- -->: <span class="lg-highlight-string">"database2.example.com:27017"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The following procedures change the members' hostnames as follows:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
mongodb0.example.net:27017
</code>
(the primary)
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
mongodb1.example.net:27017
</code>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
mongodb2.example.net:27017
</code>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
Use the most appropriate procedure for your deployment.
</p>
<span class="leafygreen-ui-1qnjd6d" id="std-label-replica-set-change-hostname-no-downtime">
</span>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Change Hostnames while Maintaining Replica Set Availability
<a class="headerlink leafygreen-ui-1kepx47" href="#change-hostnames-while-maintaining-replica-set-availability" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="change-hostnames-while-maintaining-replica-set-availability">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
This procedure uses the above
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-procedure-assumption-change-hostnames-replica-set" target="_self">
<span>
assumptions
<!-- -->
.
</span>
</a>
</p>
<ol class="leafygreen-ui-rioki0" type="1">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For each
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-secondary">
secondary
</a>
in the replica set, perform the
following sequence of operations:
</p>
<ol class="leafygreen-ui-rioki0" type="a">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Stop the secondary.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Restart the secondary at the new location.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Connect
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
to the replica set's primary. In
our example, the primary runs on port
<code class="leafygreen-ui-1l06pbn">
27017
</code>
so you would
issue the following command:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"mongosh --port 27017","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">mongosh --port 27017</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Use
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/rs.reconfig/#mongodb-method-rs.reconfig">
<code class="leafygreen-ui-1l06pbn">
rs.reconfig()
</code>
</a>
to update the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-configuration/">
replica set
configuration document
</a>
with
the new hostname.
</p>
<p class="leafygreen-ui-1kp3ins">
For example, the following sequence of commands updates the
hostname for the secondary at the array index
<code class="leafygreen-ui-1l06pbn">
1
</code>
of the
<code class="leafygreen-ui-1l06pbn">
members
</code>
array (i.e.
<code class="leafygreen-ui-1l06pbn">
members[1]
</code>
) in the replica set
configuration document:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"cfg = rs.conf()\ncfg.members[1].host = \"mongodb1.example.net:27017\"\nrs.reconfig(cfg)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">cfg <!-- -->= <!-- -->rs.<span class="lg-highlight-title lg-highlight-function">conf</span>(<!-- -->)</td></tr><tr class=""><td class="leafygreen-ui-7razhx">cfg.<span class="lg-highlight-property">members</span>[<span class="lg-highlight-number">1</span>].<span class="lg-highlight-property">host</span> <!-- -->= <span class="lg-highlight-string">"mongodb1.example.net:27017"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">rs.<span class="lg-highlight-title lg-highlight-function">reconfig</span>(<!-- -->cfg)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
For more information on updating the configuration document, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/rs.reconfig/#std-label-replica-set-reconfiguration-usage">
Examples
<!-- -->
.
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Make sure your client applications are able to access the
set at the new location and that the secondary has a chance to
catch up with the other members of the set.
</p>
<p class="leafygreen-ui-1kp3ins">
Repeat the above steps for each non-primary member of the set.
</p>
</li>
</ol>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Connect
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
to the primary and step down the
primary using the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/rs.stepDown/#mongodb-method-rs.stepDown">
<code class="leafygreen-ui-1l06pbn">
rs.stepDown()
</code>
</a>
method:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"rs.stepDown()","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">rs.<span class="lg-highlight-title lg-highlight-function">stepDown</span>(<!-- -->)</td></tr></tbody></table></code></pre>
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<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The replica set elects another member to the become primary.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
When the step down succeeds, shut down the old primary.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Start the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
instance that will become the new primary
in the new location.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Connect to the current primary, which was just elected, and update
the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-configuration/">
replica set configuration document
</a>
with the hostname of the node that
is to become the new primary.
</p>
<p class="leafygreen-ui-1kp3ins">
For example, if the old primary was at position
<code class="leafygreen-ui-1l06pbn">
0
</code>
and the new
primary's hostname is
<code class="leafygreen-ui-1l06pbn">
mongodb0.example.net:27017
</code>
, you would run:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"cfg = rs.conf()\ncfg.members[0].host = \"mongodb0.example.net:27017\"\nrs.reconfig(cfg)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">cfg <!-- -->= <!-- -->rs.<span class="lg-highlight-title lg-highlight-function">conf</span>(<!-- -->)</td></tr><tr class=""><td class="leafygreen-ui-7razhx">cfg.<span class="lg-highlight-property">members</span>[<span class="lg-highlight-number">0</span>].<span class="lg-highlight-property">host</span> <!-- -->= <span class="lg-highlight-string">"mongodb0.example.net:27017"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">rs.<span class="lg-highlight-title lg-highlight-function">reconfig</span>(<!-- -->cfg)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Connect
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
to the new primary.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
To confirm the new configuration, call
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/rs.conf/#mongodb-method-rs.conf">
<code class="leafygreen-ui-1l06pbn">
rs.conf()
</code>
</a>
in
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
.
</span>
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
Your output should resemble:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n \"_id\" : \"rs\",\n \"version\" : 4,\n \"members\" : [\n {\n \"_id\" : 0,\n \"host\" : \"mongodb0.example.net:27017\"\n },\n {\n \"_id\" : 1,\n \"host\" : \"mongodb1.example.net:27017\"\n },\n {\n \"_id\" : 2,\n \"host\" : \"mongodb2.example.net:27017\"\n }\n ]\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"rs"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"version"</span> <!-- -->: <span class="lg-highlight-number">4</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"members"</span> <!-- -->: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"host"</span> <!-- -->: <span class="lg-highlight-string">"mongodb0.example.net:27017"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"host"</span> <!-- -->: <span class="lg-highlight-string">"mongodb1.example.net:27017"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">2</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"host"</span> <!-- -->: <span class="lg-highlight-string">"mongodb2.example.net:27017"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
</ol>
<span class="leafygreen-ui-1qnjd6d" id="std-label-replica-set-change-hostname-downtime">
</span>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Change All Hostnames at the Same Time
<a class="headerlink leafygreen-ui-1kepx47" href="#change-all-hostnames-at-the-same-time" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="change-all-hostnames-at-the-same-time">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
This procedure uses the above
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-procedure-assumption-change-hostnames-replica-set" target="_self">
<span>
assumptions
<!-- -->
.
</span>
</a>
</p>
<span class="leafygreen-ui-1qnjd6d" id="std-label-repl-set-change-hostname-prereq">
</span>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Prerequisites
<a class="headerlink leafygreen-ui-1kepx47" href="#prerequisites" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="prerequisites">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The following procedure reads and updates the
<code class="leafygreen-ui-1l06pbn">
system.replset
</code>
collection in the
<code class="leafygreen-ui-1l06pbn">
local
</code>
database.
</p>
<p class="leafygreen-ui-1kp3ins">
If your deployment enforces
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/authorization/">
access control
</a>
, the user performing the procedure must have
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/privilege-actions/#mongodb-authaction-find">
<code class="leafygreen-ui-1l06pbn">
find
</code>
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/privilege-actions/#mongodb-authaction-update">
<code class="leafygreen-ui-1l06pbn">
update
</code>
</a>
privilege actions on the
<code class="leafygreen-ui-1l06pbn">
system.replset
</code>
collection.
</p>
<p class="leafygreen-ui-1kp3ins">
To create a role that provides the necessary privileges:
</p>
<ol class="leafygreen-ui-rioki0" type="1">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Log in as a user with privileges to manage users and roles, such as
a user with
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/built-in-roles/#mongodb-authrole-userAdminAnyDatabase">
<code class="leafygreen-ui-1l06pbn">
userAdminAnyDatabase
</code>
</a>
role. The following
procedure uses the
<code class="leafygreen-ui-1l06pbn">
myUserAdmin
</code>
created in
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/enable-authentication/">
Enable Access Control on Self-Managed Deployments
<!-- -->
.
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"mongosh --port 27017 -u myUserAdmin --authenticationDatabase 'admin' -p","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">mongosh <!-- -->-<!-- -->-<!-- -->port <span class="lg-highlight-number">27017</span> <!-- -->-<!-- -->u myUserAdmin <!-- -->-<!-- -->-<!-- -->authenticationDatabase <span class="lg-highlight-string">'admin'</span> <!-- -->-<!-- -->p</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Create a user role that provides the necessary privileges on the
<code class="leafygreen-ui-1l06pbn">
system.replset
</code>
collection in the
<code class="leafygreen-ui-1l06pbn">
local
</code>
database:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand( {\n createRole: \"systemreplsetRole\",\n privileges: [\n { resource: { db: \"local\", collection: \"system.replset\" }, actions: [\"find\",\"update\"] }\n ],\n roles: []\n} );","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>( <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">createRole</span>: <span class="lg-highlight-string">"systemreplsetRole"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">privileges</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">resource</span>: <!-- -->{ <span class="lg-highlight-attr">db</span>: <span class="lg-highlight-string">"local"</span>, <span class="lg-highlight-attr">collection</span>: <span class="lg-highlight-string">"system.replset"</span> }<!-- -->, <span class="lg-highlight-attr">actions</span>: <!-- -->[<span class="lg-highlight-string">"find"</span>,<span class="lg-highlight-string">"update"</span>] }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">roles</span>: <!-- -->[<!-- -->]</td></tr><tr class=""><td class="leafygreen-ui-7razhx">} )<!-- -->;</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Grant the role to the user who will be performing the rename
procedure. For example, the following assumes an existing user
<code class="leafygreen-ui-1l06pbn">
"userPerformingRename"
</code>
in the
<code class="leafygreen-ui-1l06pbn">
admin
</code>
database.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"use admin\ndb.grantRolesToUser( \"userPerformingRename\", [ { role: \"systemreplsetRole\", db: \"admin\" } ] );","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">use admin</td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">grantRolesToUser</span>( <span class="lg-highlight-string">"userPerformingRename"</span>, <!-- -->[ <!-- -->{ <span class="lg-highlight-attr">role</span>: <span class="lg-highlight-string">"systemreplsetRole"</span>, <span class="lg-highlight-attr">db</span>: <span class="lg-highlight-string">"admin"</span> } ] )<!-- -->;</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
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</div>
</div>
</div>
</div>
</li>
</ol>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Procedure
<a class="headerlink leafygreen-ui-1kepx47" href="#procedure" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
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<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="procedure">
</div>
</a>
</h3>
<ol class="leafygreen-ui-rioki0" type="1">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Stop all members in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-replica-set">
replica set
<!-- -->
.
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Restart each member
<em>
on a different port
</em>
and
<em>
without
</em>
using the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#std-option-mongod.--replSet">
<code class="leafygreen-ui-1l06pbn">
--replSet
</code>
</a>
run-time option. Changing
the port number during maintenance prevents clients from connecting
to this host while you perform maintenance. Use the member's usual
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#std-option-mongod.--dbpath">
<code class="leafygreen-ui-1l06pbn">
--dbpath
</code>
</a>
, which in this
example is
<code class="leafygreen-ui-1l06pbn">
/data/db1
</code>
. Use a command that resembles the following:
</p>
<div class="leafygreen-ui-1sjx7ru" role="note">
<h2 class="leafygreen-ui-29m78u">
Warning
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Before you bind your instance to a publicly-accessible IP address,
you must secure your cluster from unauthorized access. For a complete
list of security recommendations, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/security-checklist/#std-label-security-checklist">
Security Checklist for Self-Managed Deployments
</a>
. At minimum, consider
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/security-checklist/#std-label-checklist-auth">
enabling authentication
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/security-hardening/#std-label-network-config-hardening">
hardening
network infrastructure
<!-- -->
.
</a>
</p>
</div>
</div>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"mongod --dbpath /data/db1/ --port 37017 --bind_ip localhost,<hostname(s)|ip>","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">mongod --dbpath <!-- -->/data/db<!-- -->1/ --port 37017 --bind_ip localhost,<hostname(s)|ip address(es)></td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
To avoid configuration updates due to IP address changes, use DNS
hostnames instead of IP addresses. It is particularly important to
use a DNS hostname instead of an IP address when configuring replica
set members or sharded cluster members.
</p>
<p class="leafygreen-ui-1kp3ins">
Use hostnames instead of IP addresses to configure clusters across a
split network horizon. Starting in MongoDB 5.0, nodes that are only
configured with an IP address fail startup validation and do not start.
</p>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For each member of the replica set, perform the following sequence
of operations:
</p>
<ol class="leafygreen-ui-rioki0" type="a">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Connect
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
to the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
running on the new, temporary port. For example, for a member
running on a temporary port of
<code class="leafygreen-ui-1l06pbn">
37017
</code>
, you would issue this
command:
</p>
<script class="structured_data" type="application/ld+json">
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<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">mongosh --port 37017</td></tr></tbody></table></code></pre>
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</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
If running with access control, connect as a user with
appropriate privileges. See
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-repl-set-change-hostname-prereq" target="_self">
<span>
Prerequisites
<!-- -->
.
</span>
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"mongosh --port 37017 -u userPerformingRename --authenticationDatabase=admin -p","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">mongosh --port 37017 -u userPerformingRename --authenticationDatabase=admin -p</td></tr></tbody></table></code></pre>
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</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Edit the replica set configuration manually. The replica set
configuration is the only document in the
<code class="leafygreen-ui-1l06pbn">
system.replset
</code>
collection in the
<code class="leafygreen-ui-1l06pbn">
local
</code>
database.
</p>
<div class="line-block">
<div class="line">
<br/>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To change the hostnames, edit the replica set configuration to
provide the new hostnames and ports for all members of the
replica set.
</p>
<ol class="leafygreen-ui-rioki0" type="1">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Switch to the
<code class="leafygreen-ui-1l06pbn">
local
</code>
database.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"use local","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">use local</td></tr></tbody></table></code></pre>
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Create a JavaScript variable for the configuration document.
Modify the value of the
<code class="leafygreen-ui-1l06pbn">
_id
</code>
field to match your replica
set.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"cfg = db.system.replset.findOne( { \"_id\": \"rs0\" } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">cfg <!-- -->= <!-- -->db.<span class="lg-highlight-property">system</span>.<span class="lg-highlight-property">replset</span>.<span class="lg-highlight-title lg-highlight-function">findOne</span>( <!-- -->{ <span class="lg-highlight-string">"_id"</span>: <span class="lg-highlight-string">"rs0"</span> } )</td></tr></tbody></table></code></pre>
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</div>
</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Provide new hostnames and ports for each member of the replica
set. Modify the hostnames and ports to match your replica set.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"cfg.members[0].host = \"mongodb0.example.net:27017\"\ncfg.members[1].host = \"mongodb1.example.net:27017\"\ncfg.members[2].host = \"mongodb2.example.net:27017\"","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">cfg.<span class="lg-highlight-property">members</span>[<span class="lg-highlight-number">0</span>].<span class="lg-highlight-property">host</span> <!-- -->= <span class="lg-highlight-string">"mongodb0.example.net:27017"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">cfg.<span class="lg-highlight-property">members</span>[<span class="lg-highlight-number">1</span>].<span class="lg-highlight-property">host</span> <!-- -->= <span class="lg-highlight-string">"mongodb1.example.net:27017"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">cfg.<span class="lg-highlight-property">members</span>[<span class="lg-highlight-number">2</span>].<span class="lg-highlight-property">host</span> <!-- -->= <span class="lg-highlight-string">"mongodb2.example.net:27017"</span></td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Update the hostnames and ports in the
<code class="leafygreen-ui-1l06pbn">
system.replset
</code>
collection:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.system.replset.updateOne( { \"_id\": \"rs0\" }, { $set: cfg } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">system</span>.<span class="lg-highlight-property">replset</span>.<span class="lg-highlight-title lg-highlight-function">updateOne</span>( <!-- -->{ <span class="lg-highlight-string">"_id"</span>: <span class="lg-highlight-string">"rs0"</span> }<!-- -->, <!-- -->{ <span class="lg-highlight-attr">$set</span>: <!-- -->cfg } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Verify the changes:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.system.replset.find( {}, { \"members.host\": 1 } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">system</span>.<span class="lg-highlight-property">replset</span>.<span class="lg-highlight-title lg-highlight-function">find</span>( <!-- -->{<!-- -->}<!-- -->, <!-- -->{ <span class="lg-highlight-string">"members.host"</span>: <span class="lg-highlight-number">1</span> } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
</ol>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Stop the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
process on the member.
</p>
</li>
</ol>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
After re-configuring all members of the set, start each
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
instance in the normal way: use the usual port
number and use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#std-option-mongod.--replSet">
<code class="leafygreen-ui-1l06pbn">
--replSet
</code>
</a>
option. For
example:
</p>
<div class="leafygreen-ui-1sjx7ru" role="note">
<h2 class="leafygreen-ui-29m78u">
Warning
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Before you bind your instance to a publicly-accessible IP address,
you must secure your cluster from unauthorized access. For a complete
list of security recommendations, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/security-checklist/#std-label-security-checklist">
Security Checklist for Self-Managed Deployments
</a>
. At minimum, consider
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/security-checklist/#std-label-checklist-auth">
enabling authentication
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/security-hardening/#std-label-network-config-hardening">
hardening
network infrastructure
<!-- -->
.
</a>
</p>
</div>
</div>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"mongod --dbpath /data/db1/ --port 27017 --replSet rs0 --bind_ip localhost,<hostname(s)|ip>","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">mongod --dbpath <!-- -->/data/db<!-- -->1/ --port 27017 --replSet rs0 --bind_ip localhost,<hostname(s)|ip address(es)></td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Connect to one of the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
instances
using
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"mongosh --port 27017","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">mongosh --port 27017</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
To confirm the new configuration, call
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/rs.conf/#mongodb-method-rs.conf">
<code class="leafygreen-ui-1l06pbn">
rs.conf()
</code>
</a>
in
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
.
</span>
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
Your output should resemble:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n \"_id\" : \"rs0\",\n \"version\" : 4,\n \"members\" : [\n {\n \"_id\" : 0,\n \"host\" : \"mongodb0.example.net:27017\"\n },\n {\n \"_id\" : 1,\n \"host\" : \"mongodb1.example.net:27017\"\n },\n {\n \"_id\" : 2,\n \"host\" : \"mongodb2.example.net:27017\"\n }\n ]\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"rs0"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"version"</span> <!-- -->: <span class="lg-highlight-number">4</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"members"</span> <!-- -->: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"host"</span> <!-- -->: <span class="lg-highlight-string">"mongodb0.example.net:27017"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"host"</span> <!-- -->: <span class="lg-highlight-string">"mongodb1.example.net:27017"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">2</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"host"</span> <!-- -->: <span class="lg-highlight-string">"mongodb2.example.net:27017"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
</ol>
</section>
</section>
</section>
|
https://www.mongodb.com/docs/manual/tutorial/migrate-sharded-cluster-to-new-hardware/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Migrate a Self-Managed Sharded Cluster to Different Hardware
<a class="headerlink leafygreen-ui-1kepx47" href="#migrate-a-self-managed-sharded-cluster-to-different-hardware" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="migrate-a-self-managed-sharded-cluster-to-different-hardware">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#before-you-begin" target="_self">
<span>
Before You Begin
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#disable-the-balancer" target="_self">
<span>
Disable the Balancer
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#migrate-each-config-server-separately" target="_self">
<span>
Migrate Each Config Server Separately
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#restart-the-mongos-instances" target="_self">
<span>
Restart the
<code class="css-1kekw28 e1wawog0">
mongos
</code>
Instances
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#migrate-the-shards" target="_self">
<span>
Migrate the Shards
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#re-enable-the-balancer" target="_self">
<span>
Re-Enable the Balancer
</span>
</a>
</li>
</ul>
</div>
<p class="leafygreen-ui-1kp3ins">
The tutorial is specific to MongoDB 8.0. For earlier
versions of MongoDB, refer to the corresponding version of the MongoDB
Manual.
</p>
<p class="leafygreen-ui-1kp3ins">
Config servers for sharded clusters are
deployed as a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/replication/">
replica set
</a>
. The
replica set config servers must run the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/wiredtiger/">
WiredTiger storage engine
<!-- -->
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
This procedure moves the components of the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-sharded-cluster">
sharded cluster
</a>
to a
new hardware system without downtime for reads and writes.
</p>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
While the migration is in progress, do not attempt to change to the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/sharded-cluster-config-servers/#std-label-sharding-internals-config-database">
Sharded Cluster Metadata
</a>
. Do not use
any operation that modifies the cluster metadata
<em>
in any way
</em>
. For
example, do not create or drop databases, create or drop collections,
or use any sharding commands.
</p>
</div>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Before You Begin
<a class="headerlink leafygreen-ui-1kepx47" href="#before-you-begin" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="before-you-begin">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 8.0, you can use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/built-in-roles/#mongodb-authrole-directShardOperations">
<code class="leafygreen-ui-1l06pbn">
directShardOperations
</code>
</a>
role to perform maintenance operations
that require you to execute commands directly against a shard.
</p>
<div class="leafygreen-ui-1sjx7ru" role="note">
<h2 class="leafygreen-ui-29m78u">
Warning
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Running commands using the
<code class="leafygreen-ui-1l06pbn">
directShardOperations
</code>
role can cause
your cluster to stop working correctly and may cause data corruption.
Only use the
<code class="leafygreen-ui-1l06pbn">
directShardOperations
</code>
role for maintenance purposes
or under the guidance of MongoDB support. Once you are done
performing maintenance operations, stop using the
<code class="leafygreen-ui-1l06pbn">
directShardOperations
</code>
role.
</p>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-migrate-to-new-hardware-disable-balancer">
</span>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Disable the Balancer
<a class="headerlink leafygreen-ui-1kepx47" href="#disable-the-balancer" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="disable-the-balancer">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
Disable the balancer to stop
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/sharding-balancer-administration/#std-label-sharding-balancing">
chunk migration
</a>
and do not perform any metadata
write operations until the process finishes. If a migration is in
progress, the balancer will complete the in-progress migration before
stopping.
</p>
<p class="leafygreen-ui-1kp3ins">
To disable the balancer, connect to one of the cluster's
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instances and issue the following method:
<a class="footnote-reference header-buffer" href="#footnote-autosplit-stop" id="ref-autosplit-stop-id1">
[
<!-- -->
1
<!-- -->
]
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"sh.stopBalancer()","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">sh.<span class="lg-highlight-title lg-highlight-function">stopBalancer</span>(<!-- -->)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To check the balancer state, issue the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/sh.getBalancerState/#mongodb-method-sh.getBalancerState">
<code class="leafygreen-ui-1l06pbn">
sh.getBalancerState()
</code>
</a>
method.
</p>
<p class="leafygreen-ui-1kp3ins">
For more information, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/manage-sharded-cluster-balancer/#std-label-sharding-balancing-disable-temporarily">
Disable the Balancer
<!-- -->
.
</a>
</p>
<table class="header-buffer leafygreen-ui-rbqgrl" frame="void" id="footnote-autosplit-stop" rules="none">
<colgroup>
<col/>
</colgroup>
<tbody valign="top">
<tr>
<td class="leafygreen-ui-17r2xs0">
[
<a href="#ref-autosplit-stop-id1">
1
</a>
]
</td>
<td class="leafygreen-ui-17r2xs0">
<!-- -->
Starting in MongoDB 6.0.3, automatic chunk splitting is not performed.
This is because of balancing policy improvements. Auto-splitting commands
still exist, but do not perform an operation.
<!-- -->
In MongoDB versions earlier than 6.0.3,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/sh.stopBalancer/#mongodb-method-sh.stopBalancer">
<code class="leafygreen-ui-1l06pbn">
sh.stopBalancer()
</code>
</a>
also disables auto-splitting for the sharded cluster.
</td>
</tr>
</tbody>
</table>
<span class="leafygreen-ui-1qnjd6d" id="std-label-migrate-to-new-hardware-config-servers">
</span>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Migrate Each Config Server Separately
<a class="headerlink leafygreen-ui-1kepx47" href="#migrate-each-config-server-separately" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="migrate-each-config-server-separately">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
Config servers for sharded clusters can be
deployed as a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/replication/#std-label-replication">
replica set
</a>
(CSRS).
Using a replica set for the config
servers improves consistency across the config servers, since MongoDB
can take advantage of the standard replica set read and write protocols
for the config data. In addition, using a replica set for config
servers allows a sharded cluster to have more than 3 config servers
since a replica set can have up to 50 members. To deploy config servers
as a replica set, the config servers must run the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/wiredtiger/#std-label-storage-wiredtiger">
WiredTiger Storage Engine
<!-- -->
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
The following restrictions apply to a replica set configuration when used
for config servers:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Must have zero
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/replica-set-arbiter/#std-label-replica-set-arbiter-configuration">
arbiters
<!-- -->
.
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Must have no
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/replica-set-delayed-member/">
delayed members
<!-- -->
.
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Must build indexes (i.e. no member should have
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-configuration/#mongodb-rsconf-rsconf.members-n-.buildIndexes">
<code class="leafygreen-ui-1l06pbn">
members[n].buildIndexes
</code>
</a>
setting set to false).
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
For each member of the config server replica set:
</p>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
Replace the secondary members before replacing the primary.
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
</div>
</div>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"HowTo","steps":[{"@type":"HowToStep","text":"Start the replacement config server.Start a mongod instance, specifying the --configsvr,\n--replSet, --bind_ip options, and other options as\nappropriate to your deployment.Before you bind your instance to a publicly-accessible IP address,\nyou must secure your cluster from unauthorized access. For a complete\nlist of security recommendations, see\nSecurity Checklist for Self-Managed Deployments. At minimum, consider\nenabling authentication and hardening\nnetwork infrastructure."},{"@type":"HowToStep","text":"Add the new config server to the replica set.Connect mongosh to the primary of the config server\nreplica set and use rs.add() to add the new member.Before MongoDB 5.0, a newly added secondary still counts as a voting\nmember even though it can neither serve reads nor become primary until\nits data is consistent. If you are running a MongoDB version earlier\nthan 5.0 and add a secondary with its votes\nand priority settings greater than zero, this can\nlead to a case where a majority of the voting members are\nonline but no primary can be elected. To avoid such situations,\nconsider adding the new secondary initially with\npriority :0 and votes :0. Then, run rs.status() to ensure the\nmember has transitioned into SECONDARY state. Finally, use\nrs.reconfig() to update its priority and votes.The initial sync process copies all the data from one member of the\nconfig server replica set to the new member without restarting.mongos instances automatically recognize the change in the\nconfig server replica set members without restarting."},{"@type":"HowToStep","text":"Update the newly added config server's votes and priority settings.Ensure that the new member has reached SECONDARY\nstate. To check the state of the replica set members, run\nrs.status():Reconfigure the replica set to update the votes and priority of\nthe new member:where n is the array index of the new member in the\nmembers array.The rs.reconfig() shell method can force the current\nprimary to step down, which causes an election. When the primary steps down, the\nmongod closes all client connections. While this\ntypically takes 10-20 seconds, try to make these changes during\nscheduled maintenance periods.Avoid reconfiguring replica sets that contain members of different\nMongoDB versions as validation rules may differ across MongoDB versions."},{"@type":"HowToStep","text":"Shut down the member to replace.If replacing the primary member, step down the primary first before\nshutting down."},{"@type":"HowToStep","text":"Remove the member to replace from the config server replica set.Upon completion of initial sync of the replacement config server,\nfrom a mongosh session that is connected to the\nprimary, use rs.remove() to remove the old member.mongos instances automatically recognize the change in the\nconfig server replica set members without restarting.end-for-migration-steps"}],"name":"Migrate Each Config Server Separately","image":"https://webimages.mongodb.com/_com_assets/cms/kuyj2focmkbxv7gh3-stacked_default_slate_blue.svg?auto=format%252Ccompress"}
</script>
<div class="css-4nyere eccljxs0">
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
1
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Start the replacement config server.
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<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
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<div class="css-1btu0w3 evvkmar0" id="start-the-replacement-config-server">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Start a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
instance, specifying the
<code class="leafygreen-ui-1l06pbn">
--configsvr
</code>
,
<code class="leafygreen-ui-1l06pbn">
--replSet
</code>
,
<code class="leafygreen-ui-1l06pbn">
--bind_ip
</code>
options, and other options as
appropriate to your deployment.
</p>
<div class="leafygreen-ui-1sjx7ru" role="note">
<h2 class="leafygreen-ui-29m78u">
Warning
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Before you bind your instance to a publicly-accessible IP address,
you must secure your cluster from unauthorized access. For a complete
list of security recommendations, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/security-checklist/#std-label-security-checklist">
Security Checklist for Self-Managed Deployments
</a>
. At minimum, consider
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/security-checklist/#std-label-checklist-auth">
enabling authentication
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/security-hardening/#std-label-network-config-hardening">
hardening
network infrastructure
<!-- -->
.
</a>
</p>
</div>
</div>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"mongod --configsvr --replSet <replicasetname> --bind_ip localhost,<hostname(s)|ip>\n","programmingLanguage":"Shell"}
</script>
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<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light shell leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">mongod --configsvr --replSet <replicaSetName> --bind_ip localhost,<hostname(s)|ip address(es)></td></tr></tbody></table></code></pre>
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2
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</div>
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<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Add the new config server to the replica set.
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
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</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Connect
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
to the primary of the config server
replica set and use
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/rs.add/#mongodb-method-rs.add">
<code class="leafygreen-ui-1l06pbn">
rs.add()
</code>
</a>
to add the new member.
</p>
<div class="leafygreen-ui-1sjx7ru" role="note">
<h2 class="leafygreen-ui-29m78u">
Warning
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Before MongoDB 5.0, a newly added secondary still counts as a voting
member even though it can neither serve reads nor become primary until
its data is consistent. If you are running a MongoDB version earlier
than 5.0 and add a secondary with its
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-configuration/#mongodb-rsconf-rsconf.members-n-.votes">
<code class="leafygreen-ui-1l06pbn">
votes
</code>
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-configuration/#mongodb-rsconf-rsconf.members-n-.priority">
<code class="leafygreen-ui-1l06pbn">
priority
</code>
</a>
settings greater than zero, this can
lead to a case where a majority of the voting members are
online but no primary can be elected. To avoid such situations,
consider adding the new secondary initially with
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-configuration/#mongodb-rsconf-rsconf.members-n-.priority">
<code class="leafygreen-ui-1l06pbn">
priority :0
</code>
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-configuration/#mongodb-rsconf-rsconf.members-n-.votes">
<code class="leafygreen-ui-1l06pbn">
votes :0
</code>
</a>
. Then, run
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/rs.status/#mongodb-method-rs.status">
<code class="leafygreen-ui-1l06pbn">
rs.status()
</code>
</a>
to ensure the
member has transitioned into
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-states/#mongodb-replstate-replstate.SECONDARY">
<code class="leafygreen-ui-1l06pbn">
SECONDARY
</code>
</a>
state. Finally, use
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/rs.reconfig/#mongodb-method-rs.reconfig">
<code class="leafygreen-ui-1l06pbn">
rs.reconfig()
</code>
</a>
to update its priority and votes.
</p>
</div>
</div>
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</script>
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<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">rs.<span class="lg-highlight-title lg-highlight-function">add</span>( <!-- -->{ <span class="lg-highlight-attr">host</span>: <span class="lg-highlight-string">"<hostnameNew>:<portNew>"</span>, <span class="lg-highlight-attr">priority</span>: <span class="lg-highlight-number">0</span>, <span class="lg-highlight-attr">votes</span>: <span class="lg-highlight-number">0</span> } )</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
The initial sync process copies all the data from one member of the
config server replica set to the new member without restarting.
</p>
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instances automatically recognize the change in the
config server replica set members without restarting.
</p>
</section>
</div>
</div>
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3
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</div>
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<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Update the newly added config server's votes and priority settings.
<a class="headerlink leafygreen-ui-1kepx47" href="#update-the-newly-added-config-server-s-votes-and-priority-settings" title="Permalink to this heading">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
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</h3>
<ol class="leafygreen-ui-rioki0" type="a">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Ensure that the new member has reached
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-states/#mongodb-replstate-replstate.SECONDARY">
<code class="leafygreen-ui-1l06pbn">
SECONDARY
</code>
</a>
state. To check the state of the replica set members, run
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/rs.status/#mongodb-method-rs.status">
<code class="leafygreen-ui-1l06pbn">
rs.status()
</code>
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"rs.status()","programmingLanguage":"JavaScript"}
</script>
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<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">rs.<span class="lg-highlight-title lg-highlight-function">status</span>(<!-- -->)</td></tr></tbody></table></code></pre>
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</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Reconfigure the replica set to update the votes and priority of
the new member:
</p>
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{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"var cfg = rs.conf();\n\ncfg.members[n].priority = 1; // Substitute the correct array index for the new member\ncfg.members[n].votes = 1; // Substitute the correct array index for the new member\n\nrs.reconfig(cfg)","programmingLanguage":"JavaScript"}
</script>
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<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> cfg <!-- -->= <!-- -->rs.<span class="lg-highlight-title lg-highlight-function">conf</span>(<!-- -->)<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">cfg.<span class="lg-highlight-property">members</span>[<!-- -->n].<span class="lg-highlight-property">priority</span> <!-- -->= <span class="lg-highlight-number">1</span>; <span class="lg-highlight-comment">//</span><span class="lg-highlight-comment"> Substitute the correct </span><span class="lg-highlight-comment">array</span><span class="lg-highlight-comment"> index for the </span><span class="lg-highlight-comment">new member</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">cfg.<span class="lg-highlight-property">members</span>[<!-- -->n].<span class="lg-highlight-property">votes</span> <!-- -->= <span class="lg-highlight-number">1</span>; <span class="lg-highlight-comment">//</span><span class="lg-highlight-comment"> Substitute the correct </span><span class="lg-highlight-comment">array</span><span class="lg-highlight-comment"> index for the </span><span class="lg-highlight-comment">new member</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">rs.<span class="lg-highlight-title lg-highlight-function">reconfig</span>(<!-- -->cfg)</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
where
<code class="leafygreen-ui-1l06pbn">
n
</code>
is the array index of the new member in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-configuration/#mongodb-rsconf-rsconf.members">
<code class="leafygreen-ui-1l06pbn">
members
</code>
</a>
array.
</p>
</li>
</ol>
<div class="leafygreen-ui-1sjx7ru" role="note">
<h2 class="leafygreen-ui-29m78u">
Warning
</h2>
<div class="leafygreen-ui-9mycqc">
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/rs.reconfig/#mongodb-method-rs.reconfig">
<code class="leafygreen-ui-1l06pbn">
rs.reconfig()
</code>
</a>
shell method can force the current
primary to step down, which causes an
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/replica-set-elections/#std-label-replica-set-elections">
election
</a>
. When the primary steps down, the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
closes all client connections. While this
typically takes 10-20 seconds, try to make these changes during
scheduled maintenance periods.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Avoid reconfiguring replica sets that contain members of different
MongoDB versions as validation rules may differ across MongoDB versions.
</p>
</li>
</ul>
</div>
</div>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
4
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Shut down the member to replace.
<a class="headerlink leafygreen-ui-1kepx47" href="#shut-down-the-member-to-replace" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="shut-down-the-member-to-replace">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
If replacing the primary member, step down the primary first before
shutting down.
</p>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
5
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Remove the member to replace from the config server replica set.
<a class="headerlink leafygreen-ui-1kepx47" href="#remove-the-member-to-replace-from-the-config-server-replica-set" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="remove-the-member-to-replace-from-the-config-server-replica-set">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Upon completion of initial sync of the replacement config server,
from a
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
session that is connected to the
primary, use
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/rs.remove/#mongodb-method-rs.remove">
<code class="leafygreen-ui-1l06pbn">
rs.remove()
</code>
</a>
to remove the old member.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"rs.remove(\"<hostnameold>:<portold>\")\n","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">rs.<span class="lg-highlight-title lg-highlight-function">remove</span>(<span class="lg-highlight-string">"<hostnameOld>:<portOld>"</span>)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instances automatically recognize the change in the
config server replica set members without restarting.
</p>
</section>
</div>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-migrate-to-new-hardware-restart-mongos">
</span>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Restart the
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
Instances
<a class="headerlink leafygreen-ui-1kepx47" href="#restart-the-mongos-instances" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="restart-the-mongos-instances">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
With replica set config servers, the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instances
specify in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#std-option-mongos.--configdb">
<code class="leafygreen-ui-1l06pbn">
--configdb
</code>
</a>
or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-sharding.configDB">
<code class="leafygreen-ui-1l06pbn">
sharding.configDB
</code>
</a>
setting the config server replica set name and at least one of the
replica set members. The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instances for the sharded
cluster must specify the same config server replica set name but can
specify different members of the replica set.
</p>
<p class="leafygreen-ui-1kp3ins">
If a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instance specifies a migrated replica set member in
the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#std-option-mongos.--configdb">
<code class="leafygreen-ui-1l06pbn">
--configdb
</code>
</a>
or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-sharding.configDB">
<code class="leafygreen-ui-1l06pbn">
sharding.configDB
</code>
</a>
setting, update
the config server setting for the next time you restart the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instance.
</p>
<p class="leafygreen-ui-1kp3ins">
For more information, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/deploy-shard-cluster/#std-label-sharding-setup-start-mongos">
Start a
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
for the Sharded Cluster
<!-- -->
.
</a>
</p>
<span class="leafygreen-ui-1qnjd6d" id="std-label-migrate-to-new-hardware-shards">
</span>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Migrate the Shards
<a class="headerlink leafygreen-ui-1kepx47" href="#migrate-the-shards" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="migrate-the-shards">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
Migrate the shards one at a time. For each shard, follow the appropriate
procedure in this section.
</p>
<span class="leafygreen-ui-1qnjd6d" id="std-label-migrate-replica-set-shard">
</span>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Migrate a Replica Set Shard
<a class="headerlink leafygreen-ui-1kepx47" href="#migrate-a-replica-set-shard" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="migrate-a-replica-set-shard">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
To migrate a sharded cluster, migrate each member separately. First
migrate the non-primary members, and then migrate the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-primary">
primary
</a>
last.
</p>
<p class="leafygreen-ui-1kp3ins">
If the replica set has two voting members, add an
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/replica-set-arbiter/">
arbiter
</a>
to the replica set to ensure the set
keeps a majority of its votes available during the migration. You can
remove the arbiter after completing the migration.
</p>
<span class="leafygreen-ui-1qnjd6d" id="std-label-migrate-replica-set-shard-member">
</span>
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Migrate a Member of a Replica Set Shard
<a class="headerlink leafygreen-ui-1kepx47" href="#migrate-a-member-of-a-replica-set-shard" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="migrate-a-member-of-a-replica-set-shard">
</div>
</a>
</h4>
<ol class="leafygreen-ui-rioki0" type="1">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Shut down the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
process. To ensure a
clean shutdown, use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/shutdown/#mongodb-dbcommand-dbcmd.shutdown">
<code class="leafygreen-ui-1l06pbn">
shutdown
</code>
</a>
command.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Move the data directory (i.e., the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-storage.dbPath">
<code class="leafygreen-ui-1l06pbn">
dbPath
</code>
</a>
)
to the new machine.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Restart the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
process at the new
location.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Connect to the replica set's current primary.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
If the hostname of the member has changed, use
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/rs.reconfig/#mongodb-method-rs.reconfig">
<code class="leafygreen-ui-1l06pbn">
rs.reconfig()
</code>
</a>
to update the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-configuration/">
replica set configuration
document
</a>
with the new hostname.
</p>
<p class="leafygreen-ui-1kp3ins">
For example, the following sequence of commands updates the
hostname for the instance at position
<code class="leafygreen-ui-1l06pbn">
2
</code>
in the
<code class="leafygreen-ui-1l06pbn">
members
</code>
array:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"cfg = rs.conf()\ncfg.members[2].host = \"pocatello.example.net:27018\"\nrs.reconfig(cfg)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">cfg <!-- -->= <!-- -->rs.<span class="lg-highlight-title lg-highlight-function">conf</span>(<!-- -->)</td></tr><tr class=""><td class="leafygreen-ui-7razhx">cfg.<span class="lg-highlight-property">members</span>[<span class="lg-highlight-number">2</span>].<span class="lg-highlight-property">host</span> <!-- -->= <span class="lg-highlight-string">"pocatello.example.net:27018"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">rs.<span class="lg-highlight-title lg-highlight-function">reconfig</span>(<!-- -->cfg)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
For more information on updating the configuration document, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/rs.reconfig/#std-label-replica-set-reconfiguration-usage">
Examples
<!-- -->
.
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
To confirm the new configuration, issue
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/rs.conf/#mongodb-method-rs.conf">
<code class="leafygreen-ui-1l06pbn">
rs.conf()
</code>
.
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Wait for the member to recover. To check the member's state, issue
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/rs.status/#mongodb-method-rs.status">
<code class="leafygreen-ui-1l06pbn">
rs.status()
</code>
.
</a>
</p>
</li>
</ol>
</section>
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Migrate the Primary in a Replica Set Shard
<a class="headerlink leafygreen-ui-1kepx47" href="#migrate-the-primary-in-a-replica-set-shard" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="migrate-the-primary-in-a-replica-set-shard">
</div>
</a>
</h4>
<p class="leafygreen-ui-1kp3ins">
While migrating the replica set's primary, the set must elect a new
primary. This failover process which renders the replica set
unavailable to perform reads or accept writes for the duration of the
election, which typically completes quickly. If possible, plan the
migration during a maintenance window.
</p>
<ol class="leafygreen-ui-rioki0" type="1">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Step down the primary to allow the normal
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/replica-set-high-availability/#std-label-replica-set-failover">
failover
</a>
process. To step down the primary, connect
to the primary and issue the either the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/replSetStepDown/#mongodb-dbcommand-dbcmd.replSetStepDown">
<code class="leafygreen-ui-1l06pbn">
replSetStepDown
</code>
</a>
command or the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/rs.stepDown/#mongodb-method-rs.stepDown">
<code class="leafygreen-ui-1l06pbn">
rs.stepDown()
</code>
</a>
method. The following example shows the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/rs.stepDown/#mongodb-method-rs.stepDown">
<code class="leafygreen-ui-1l06pbn">
rs.stepDown()
</code>
</a>
method:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"rs.stepDown()","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">rs.<span class="lg-highlight-title lg-highlight-function">stepDown</span>(<!-- -->)</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Once the primary has stepped down and another member has become
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-states/#mongodb-replstate-replstate.PRIMARY">
<code class="leafygreen-ui-1l06pbn">
PRIMARY
</code>
</a>
state. To migrate the stepped-down primary,
follow the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-migrate-replica-set-shard-member" target="_self">
<span>
Migrate a Member of a Replica Set Shard
</span>
</a>
procedure
</p>
<p class="leafygreen-ui-1kp3ins">
You can check the output of
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/rs.status/#mongodb-method-rs.status">
<code class="leafygreen-ui-1l06pbn">
rs.status()
</code>
</a>
to confirm the
change in status.
</p>
</li>
</ol>
<span class="leafygreen-ui-1qnjd6d" id="std-label-migrate-to-new-hardware-enable-balancer">
</span>
</section>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Re-Enable the Balancer
<a class="headerlink leafygreen-ui-1kepx47" href="#re-enable-the-balancer" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="re-enable-the-balancer">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
To complete the migration, re-enable the balancer to resume
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/sharding-balancer-administration/#std-label-sharding-balancing">
chunk migrations
<!-- -->
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
Connect to one of the cluster's
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
instances and pass
<code class="leafygreen-ui-1l06pbn">
true
</code>
to the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/sh.startBalancer/#mongodb-method-sh.startBalancer">
<code class="leafygreen-ui-1l06pbn">
sh.startBalancer()
</code>
</a>
method:
<a class="footnote-reference header-buffer" href="#footnote-autosplit-start" id="ref-autosplit-start-id2">
[
<!-- -->
2
<!-- -->
]
</a>
</p>
<script class="structured_data" type="application/ld+json">
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</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">sh.<span class="lg-highlight-title lg-highlight-function">startBalancer</span>(<!-- -->)</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To check the balancer state, issue the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/sh.getBalancerState/#mongodb-method-sh.getBalancerState">
<code class="leafygreen-ui-1l06pbn">
sh.getBalancerState()
</code>
</a>
method.
</p>
<p class="leafygreen-ui-1kp3ins">
For more information, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/manage-sharded-cluster-balancer/#std-label-sharding-balancing-enable">
Enable the Balancer
<!-- -->
.
</a>
</p>
<table class="header-buffer leafygreen-ui-rbqgrl" frame="void" id="footnote-autosplit-start" rules="none">
<colgroup>
<col/>
</colgroup>
<tbody valign="top">
<tr>
<td class="leafygreen-ui-17r2xs0">
[
<a href="#ref-autosplit-start-id2">
2
</a>
]
</td>
<td class="leafygreen-ui-17r2xs0">
<!-- -->
Starting in MongoDB 6.0.3, automatic chunk splitting is not performed.
This is because of balancing policy improvements. Auto-splitting commands
still exist, but do not perform an operation.
<!-- -->
In MongoDB versions earlier than 6.0.3,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/sh.startBalancer/#mongodb-method-sh.startBalancer">
<code class="leafygreen-ui-1l06pbn">
sh.startBalancer()
</code>
</a>
also enables auto-splitting for the sharded cluster.
</td>
</tr>
</tbody>
</table>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/method/cursor.size/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
cursor.size()
<a class="headerlink leafygreen-ui-1kepx47" href="#cursor.size--" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="cursor.size--">
</div>
</a>
</h1>
<dl class="method">
<dt>
<code class="leafygreen-ui-1l06pbn">
cursor.size()
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-method-cursor.size" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-method-cursor.size">
</div>
</a>
</dt>
<dd>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
mongosh Method
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
This page documents a
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
method. This is
<em>
not
</em>
the documentation for a language-specific driver, such as Node.js.
</p>
<p class="leafygreen-ui-1kp3ins">
For MongoDB API drivers, refer to the language-specific
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/drivers/" target="_self">
<span>
MongoDB driver documentation
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
<table class="css-11h39yh e1nex8bq0">
<colgroup>
<col class="field-name"/>
<col class="field-body"/>
</colgroup>
<tbody>
<tr class="css-x8snli">
<th>
Returns
<!-- -->
:
</th>
<td>
A count of the number of documents that match the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.find/#mongodb-method-db.collection.find">
<code class="leafygreen-ui-1l06pbn">
db.collection.find()
</code>
</a>
query after applying any
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/cursor.skip/#mongodb-method-cursor.skip">
<code class="leafygreen-ui-1l06pbn">
cursor.skip()
</code>
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/cursor.limit/#mongodb-method-cursor.limit">
<code class="leafygreen-ui-1l06pbn">
cursor.limit()
</code>
</a>
methods.
</td>
</tr>
</tbody>
</table>
</dd>
</dl>
</section>
|
https://www.mongodb.com/docs/manual/tutorial/authenticate-nativeldap-activedirectory/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Authenticate and Authorize Users Using Self-Managed Active Directory with Native LDAP
<a class="headerlink leafygreen-ui-1kepx47" href="#authenticate-and-authorize-users-using-self-managed-active-directory-with-native-ldap" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="authenticate-and-authorize-users-using-self-managed-active-directory-with-native-ldap">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#prerequisites" target="_self">
<span>
Prerequisites
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#considerations" target="_self">
<span>
Considerations
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#procedure" target="_self">
<span>
Procedure
</span>
</a>
</li>
</ul>
</div>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 8.0, LDAP authentication and authorization is
deprecated. LDAP is available and will continue to operate without
changes throughout the lifetime of MongoDB 8. LDAP will be removed in a
future major release.
</p>
<p class="leafygreen-ui-1kp3ins">
For details, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/LDAP-deprecation/#std-label-ldap-deprecation">
LDAP Deprecation
<!-- -->
.
</a>
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
MongoDB Enterprise provides support via platform LDAP libraries for proxy
authentication and authorization requests to a specified Lightweight Directory
Access Protocol (LDAP) service such as Active Directory (AD).
</p>
<p class="leafygreen-ui-1kp3ins">
This tutorial describes how to configure MongoDB to perform authentication
and authorization through an Active Directory (AD) server via the platform
libraries.
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
For MongoDB 4.2 Enterprise binaries linked against
<code class="leafygreen-ui-1l06pbn">
libldap
</code>
(such as when running on RHEL), access to the
<code class="leafygreen-ui-1l06pbn">
libldap
</code>
is synchronized, incurring some performance/latency
costs.
</p>
<p class="leafygreen-ui-1kp3ins">
For MongoDB 4.2 Enterprise binaries linked against
<code class="leafygreen-ui-1l06pbn">
libldap_r
</code>
, there is no change in behavior from earlier MongoDB
versions.
</p>
</div>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Prerequisites
<a class="headerlink leafygreen-ui-1kepx47" href="#prerequisites" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="prerequisites">
</div>
</a>
</h2>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Thoroughly familiarize yourself with the following subjects before proceeding:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/security-ldap/#std-label-security-ldap">
LDAP Authentication
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/security-ldap-external/#std-label-security-ldap-external">
LDAP Authorization
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://msdn.microsoft.com/en-us/library/bb742424.aspx" rel="noopener noreferrer">
<span>
Active Directory
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</li>
</ul>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
A full description of
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
is beyond the scope of
this tutorial. This tutorial assumes prior knowledge of
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
.
</p>
<p class="leafygreen-ui-1kp3ins">
MongoDB supports using SASL mechanisms for binding between the MongoDB server
and
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
. A full description of SASL, SASL
mechanisms, or the specific
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
configuration
requirements for a given SASL mechanism are beyond the scope of this tutorial.
This tutorial assumes prior knowledge of SASL and its related subject matter.
</p>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Configure Internal Member Authentication
<a class="headerlink leafygreen-ui-1kepx47" href="#configure-internal-member-authentication" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="configure-internal-member-authentication">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
You must configure
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/security-internal-authentication/#std-label-replica-set-security">
internal member authentication
</a>
before you can set up LDAP authentication or authorization for a cluster.
</p>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Considerations
<a class="headerlink leafygreen-ui-1kepx47" href="#considerations" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="considerations">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
This tutorial explains configuring MongoDB for
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
authentication and authorization.
</p>
<p class="leafygreen-ui-1kp3ins">
To perform this procedure on your own MongoDB server, you must modify the
given procedures with respect to your own specific infrastructure, especially
Active Directory configurations, constructing
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
queries, or managing users.
</p>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Transport Layer Security
<a class="headerlink leafygreen-ui-1kepx47" href="#transport-layer-security" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="transport-layer-security">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
By default, MongoDB creates a TLS/SSL connection when binding to the
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
server. This requires configuring the host of the MongoDB
server to have access to the AD server's Certificate Authority (CA)
certificates.
</p>
<p class="leafygreen-ui-1kp3ins">
This tutorial provides instructions for the required host configurations.
</p>
<p class="leafygreen-ui-1kp3ins">
This tutorial assumes you have access to the AD server's CA certificates and
can create a copy of the certificates on the MongoDB server.
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
User Names
<a class="headerlink leafygreen-ui-1kepx47" href="#user-names" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="user-names">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
To use
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/read-isolation-consistency-recency/#std-label-sessions">
Client Sessions and Causal Consistency Guarantees
</a>
with
<code class="leafygreen-ui-1l06pbn">
$external
</code>
authentication users
(Kerberos, LDAP, or x.509 users), usernames cannot be greater
than 10k bytes.
</p>
<span class="leafygreen-ui-1qnjd6d" id="std-label-activedirectory-authauthz-adschema">
</span>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Example Active Directory Schema
<a class="headerlink leafygreen-ui-1kepx47" href="#example-active-directory-schema" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="example-active-directory-schema">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
This tutorial uses the following example
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
objects
as the basis for the provided queries, configurations, and output. Each object
shows only a subset of the possible attributes.
</p>
<span class="leafygreen-ui-1qnjd6d" id="std-label-activedirectory-authauthz-userObj">
</span>
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
User Objects
<a class="headerlink leafygreen-ui-1kepx47" href="#user-objects" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="user-objects">
</div>
</a>
</h4>
<script class="structured_data" type="application/ld+json">
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</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">dn:CN=bob,CN=Users,DC=marketing,DC=example,DC=com</td></tr><tr class=""><td class="leafygreen-ui-7razhx">userPrincipalName: [email protected]</td></tr><tr class=""><td class="leafygreen-ui-7razhx">memberOf: CN=marketing,CN=Users,DC=example,DC=com</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">dn:CN=alice,CN=Users,DC=engineering,DC=example,DC=com</td></tr><tr class=""><td class="leafygreen-ui-7razhx">userPrincipalName: [email protected]</td></tr><tr class=""><td class="leafygreen-ui-7razhx">memberOf: CN=web,CN=Users,DC=example,DC=com</td></tr><tr class=""><td class="leafygreen-ui-7razhx">memberOf: CN=PrimaryApplication,CN=Users,DC=example,DC=com</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">dn:CN=sam,CN=Users,DC=dba,DC=example,DC=com</td></tr><tr class=""><td class="leafygreen-ui-7razhx">userPrincipalName: [email protected]</td></tr><tr class=""><td class="leafygreen-ui-7razhx">memberOf: CN=dba,CN=Users,DC=example,DC=com</td></tr><tr class=""><td class="leafygreen-ui-7razhx">memberOf: CN=PrimaryApplication,CN=Users,DC=example,DC=com</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">dn:CN=joe,CN=Users,DC=analytics,DC=example,DC=com</td></tr><tr class=""><td class="leafygreen-ui-7razhx">userPrincipalName: [email protected]</td></tr><tr class=""><td class="leafygreen-ui-7razhx">memberof: CN=marketing,CN=Users,DC=example,DC=com</td></tr></tbody></table></code></pre>
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<span class="leafygreen-ui-1qnjd6d" id="std-label-activedirectory-authauthz-groupObj">
</span>
</section>
<section>
<h4 class="contains-headerlink leafygreen-ui-1vzlt5f">
Group Objects
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="group-objects">
</div>
</a>
</h4>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"dn:CN=marketing,CN=Users,DC=example,DC=com\nmember:CN=bob,CN=Users,DC=marketing,DC=example,DC=com\nmember:CN=joe,CN=Users,DC=analytics,DC=example,DC=com\n\ndn:CN=engineering,CN=Users,DC=example,DC=com\nmember:CN=web,CN=Users,DC=example,DC=com\nmember:CN=dba,CN=users,DC=example,DC=com\n\ndn:CN=web,CN=Users,DC=example,DC=com\nmember:CN=alice,CN=Users,DC=engineering,DC=example,DC=com\n\ndn:CN=dba,CN=Users,DC=example,DC=com\nmember:CN=sam,CN=Users,DC=dba,DC=example,DC=com\n\ndn:CN=PrimaryApplication,CN=Users,DC=example,DC=com\nmember:CN=sam,CN=Users,DC=dba,DC=example,DC=com\nmember:CN=alice,CN=Users,DC=engineering,DC=example,DC=com","programmingLanguage":"Bash"}
</script>
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<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">dn:CN=marketing,CN=Users,DC=example,DC=com</td></tr><tr class=""><td class="leafygreen-ui-7razhx">member:CN=bob,CN=Users,DC=marketing,DC=example,DC=com</td></tr><tr class=""><td class="leafygreen-ui-7razhx">member:CN=joe,CN=Users,DC=analytics,DC=example,DC=com</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">dn:CN=engineering,CN=Users,DC=example,DC=com</td></tr><tr class=""><td class="leafygreen-ui-7razhx">member:CN=web,CN=Users,DC=example,DC=com</td></tr><tr class=""><td class="leafygreen-ui-7razhx">member:CN=dba,CN=<span class="lg-highlight-built_in">users</span>,DC=example,DC=com</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">dn:CN=web,CN=Users,DC=example,DC=com</td></tr><tr class=""><td class="leafygreen-ui-7razhx">member:CN=alice,CN=Users,DC=engineering,DC=example,DC=com</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">dn:CN=dba,CN=Users,DC=example,DC=com</td></tr><tr class=""><td class="leafygreen-ui-7razhx">member:CN=sam,CN=Users,DC=dba,DC=example,DC=com</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">dn:CN=PrimaryApplication,CN=Users,DC=example,DC=com</td></tr><tr class=""><td class="leafygreen-ui-7razhx">member:CN=sam,CN=Users,DC=dba,DC=example,DC=com</td></tr><tr class=""><td class="leafygreen-ui-7razhx">member:CN=alice,CN=Users,DC=engineering,DC=example,DC=com</td></tr></tbody></table></code></pre>
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</section>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Active Directory Credentials
<a class="headerlink leafygreen-ui-1kepx47" href="#active-directory-credentials" title="Permalink to this heading">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
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</svg>
<div class="css-1btu0w3 evvkmar0" id="active-directory-credentials">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
This tutorial uses a username and password for performing queries on the
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
server. The credentials provided must have
sufficient privileges on the AD server for supporting queries related to
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-security.ldap.userToDNMapping">
<code class="leafygreen-ui-1l06pbn">
security.ldap.userToDNMapping
</code>
</a>
or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-security.ldap.authz.queryTemplate">
<code class="leafygreen-ui-1l06pbn">
security.ldap.authz.queryTemplate
</code>
.
</a>
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Replica Sets
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
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</svg>
<div class="css-1btu0w3 evvkmar0" id="replica-sets">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
MongoDB LDAP authorization requires
<em>
every
</em>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
in the replica
set to be on at least MongoDB 3.4.0 or later.
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Sharded Clusters
<a class="headerlink leafygreen-ui-1kepx47" href="#sharded-clusters" title="Permalink to this heading">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="sharded-clusters">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
MongoDB LDAP authorization requires
<em>
every
</em>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
in the sharded cluster to be on at least MongoDB 3.4.0 or
later.
</p>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Procedure
<a class="headerlink leafygreen-ui-1kepx47" href="#procedure" title="Permalink to this heading">
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<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="procedure">
</div>
</a>
</h2>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"HowTo","steps":[{"@type":"HowToStep","text":"Configure TLS/SSL for the server running MongoDBTo connect to the AD (Active Directory) (AD) server via TLS/SSL, the\nmongod or mongos require access to the AD\n(Active Directory) server's Certificate Authority (CA) certificate.On Linux, specify the AD (Active Directory) server's CA certificates\nvia the TLS_CACERT or TLS_CACERTDIR option in the ldap.conf file.Your platform's package manager creates the ldap.conf file while\ninstalling MongoDB Enterprise's libldap dependency. For complete\ndocumentation on the configuration file or the referenced options, see\nldap.conf.On Microsoft Windows (Microsoft Windows), load the AD (Active\nDirectory) server's Certificate Authority (CA) certificates with the\nplatform's credential management tool. The exact credential management tool\nis Windows (Microsoft Windows) version dependent. To use the tool,\nrefer to its documentation for your version of Windows (Microsoft\nWindows).If mongod or mongos cannot access to the AD\n(Active Directory) CA files, they cannot create TLS/SSL connections to the\nActive Directory server.Optionally, set security.ldap.transportSecurity to none\nto disable TLS/SSL.Setting transportSecurity to none transmits\nplaintext information, including user credentials, between MongoDB and\nthe AD (Active Directory) server."},{"@type":"HowToStep","text":"Connect to the MongoDB server.Connect to the MongoDB server using mongosh using the\n--host and --port options.If your MongoDB server currently enforces authentication, you must\nauthenticate to the admin database as a user with role management\nprivileges, such as those provided by userAdmin or\nuserAdminAnyDatabase. Include the appropriate\n--authenticationMechanism for the\nMongoDB server's configured authentication mechanism.For Windows (Microsoft Windows) MongoDB deployments, you should replace mongosh with\nmongo.exe"},{"@type":"HowToStep","text":"Create user administrative role.To manage MongoDB users using AD (Active Directory), you need to\ncreate at least one role on the admin database that can create and\nmanage roles, such as those provided by userAdmin or\nuserAdminAnyDatabase.The role's name must exactly match the Distinguished Name of an AD\n(Active Directory) group. The group must have at least one AD\n(Active Directory) user as a member.Given the available Active Directory groups,the following operation:Creates a role named for the AD (Active Directory) group\nCN=dba,CN=Users,DC=example,DC=com, andAssigns it the userAdminAnyDatabase role on the admin\ndatabase.You could alternatively grant the userAdmin role for each\ndatabase the user should have user administrative privileges on. These roles\nprovide the necessary privileges for role creation and management.Consider applying the principle of least privilege\nwhen configuring MongoDB roles, AD (Active Directory) groups, or\ngroup membership."},{"@type":"HowToStep","text":"Create a MongoDB configuration file.A MongoDB configuration file is a\nplain-text YAML file with the .conf file extension.If you are upgrading an existing MongoDB deployment, copy the\ncurrent configuration file and work from that copy.(Linux Only) If this is a new deployment and you used your platform's\npackage manager to install MongoDB Enterprise, the installation includes\nthe /etc/mongod.conf default configuration file. Use that default\nconfiguration file, or make a copy of that file to work from.If no such file exists, create an empty file with the .conf extension\nand work from that new configuration file."},{"@type":"HowToStep","text":"Configure MongoDB to connect to Active Directory.In the MongoDB configuration file, set security.ldap.servers to\nthe host and port of the AD (Active Directory) server. If your\nAD (Active Directory) infrastructure includes multiple AD\n(Active Directory) servers for the purpose of replication, specify the host\nand port of the servers as a comma-delimited list to\nsecurity.ldap.servers.You must also enable LDAP authentication by setting\nsecurity.authorization to enabled and setParameter\nauthenticationMechanisms to PLAINTo connect to an AD (Active Directory) server located at\nactivedirectory.example.net, include the following in the\nconfiguration file:MongoDB must bind to the AD (Active Directory) server to perform\nqueries. By default, MongoDB uses the simple authentication mechanism to\nbind itself to the AD (Active Directory) server.Alternatively, you can configure the following settings in the configuration\nfile to bind to the AD (Active Directory) server using SASL:Set security.ldap.bind.method to saslsecurity.ldap.bind.saslMechanisms, specifying a string of\ncomma-separated SASL mechanisms the AD (Active Directory) server\nsupports.This tutorial uses the default simple LDAP authentication mechanism."},{"@type":"HowToStep","text":"Configure LDAP Query Template for authorization.In the MongoDB configuration file, set\nsecurity.ldap.authz.queryTemplate to an RFC4516 formatted LDAP query URL template.In the template, you can use either:{USER} placeholder to substitute the authenticated username into\nthe LDAP query URL.{PROVIDED_USER} placeholder to substitute the supplied username,\ni.e. before either authentication or LDAP transformation, into the\nLDAP query.A full description of RFC4515,\nRFC4516, or AD (Active Directory) queries is out of scope for\nthis tutorial. The queryTemplate provided\nin this tutorial is an example only, and may not be applicable for your\nspecific AD (Active Directory) deployment.The following query template returns any groups that list {USER} as a\nmember, following recursive group memberships. This LDAP query assumes\nthat group objects track user membership by storing full user\nDistinguished Name (DN) using the member attribute. The query\nincludes the AD (Active Directory) specific matching rule OID\n1.2.840.113556.1.4.1941 for LDAP_MATCHING_RULE_IN_CHAIN. This\nmatching rule is an AD (Active Directory) specific extension to\nLDAP search filters.If the AD (Active Directory) forest contains a large number of\ngroups, the recursive member:1.2.840.113556.1.4.1941 filter can lead\nto significant performance degradation.Using the query template, MongoDB substitutes {USER} with the\nauthenticated username to query the LDAP server.For example, a user authenticates as\nCN=sam,CN=Users,DC=dba,DC=example,DC=com. MongoDB creates an LDAP\nquery based on the queryTemplate,\nsubstituting the {USER} token with the authenticated/transfored username. The Active\nDirectory server performs a recursive group lookup for any group that\neither directly or transitively lists the user as a member. Based on the\nActive Directory groups, the\nAD (Active Directory) server returns the following groups:CN=dba,CN=Users,DC=example,DC=comCN=engineering,CN=Users,DC=example,DC=comCN=PrimaryApplication,CN=Users,DC=example,DC=comMongoDB maps each returned group DN (Distinguished Name) to a role\non the admin database. For each mapped group DN (Distinguished\nName), if there is an existing role on the admin database whose name\nexactly matches the DN (Distinguished Name), MongoDB grants the user\nthe roles and privileges assigned to that role.The matching rule LDAP_MATCHING_RULE_IN_CHAIN requires providing the\nfull DN (Distinguished Name) of the authenticating user. If users\nauthenticate using a different username format, such as their user\nprincipal name, you must transform the incoming usernames into DNs\n(Distinguished Name) using security.ldap.userToDNMapping."},{"@type":"HowToStep","text":"Optional: Transform incoming usernames for authentication via Active Directory,If your users authenticate with a username that is not a full LDAP DN,\nyou may need to transform the username to support LDAP authentication\nor authorization. MongoDB uses the transformed username for both\nauthentication and authorization.In the MongoDB configuration file, set\nuserToDNMapping to transform the authenticating\nuser's provided username into an AD (Active Directory) DN to support\nthe queryTemplate.Given the configured queryTemplate,\nusers must authenticate with their full LDAP DN. If users instead\nauthenticate using their userPrincipalName, then a transformation\nmust be applied to convert the provided username to a full LDAP DN.The following userToDNMapping configuration\nuses the match regular expression filter to capture the provided\nusername. MongoDB inserts the captured username into the ldapQuery\nquery template before executing the query.The Active Directory server returns the full LDAP DN associated to the\nuser object with a matching userPrincipalName. MongoDB can then use\nthis transformed username for authentication and authorization.You must modify the given sample configuration to match your deployment. For\nexample, the ldapQuery base DN (Distinguished Name) must match\nthe base DN (Distinguished Name) which contains your user entities.\nOther modifications may be necessary to support your AD (Active\nDirectory) deployment.A user authenticates as [email protected]. MongoDB first\napplies any transformations specified in\nuserToDNMapping. Based on the provided\nconfiguration, MongoDB captures the username in the match stage and\nexecutes an LDAP query:Based on the configured Active Directory\nusers, the AD (Active\nDirectory) server should return\nCN=alice,CN=Users,DC=engineering,DC=example,DC=com.MongoDB then executes the LDAP query configured in\nqueryTemplate, replacing the {USER}\ntoken with the transformed username\nCN=alice,CN=Users,DC=engineering,DC=example,DC=com.If you use userToDNMapping's\nsubstitution parameter to transform the group name, the result\nof the substitution must be an RFC4514 escaped string."},{"@type":"HowToStep","text":"Configure query credentials.MongoDB requires credentials for performing queries on the AD (Active\nDirectory) server.Configure the following settings in the configuration file:security.ldap.bind.queryUser, specifying the Active Directory user the\nmongod or mongos binds as for performing queries on\nthe AD (Active Directory) server.security.ldap.bind.queryPassword, specifying the password for\nthe specified queryUser.On Windows (Microsoft Windows) MongoDB servers, you can set\nsecurity.ldap.bind.useOSDefaults to true to use the\ncredentials of the OS user instead of queryUser and queryPassword.The queryUser must\nhave permission to perform all LDAP queries on behalf of MongoDB."},{"@type":"HowToStep","text":"Optional: Add additional configuration settings.Add any additional configuration options required for your deployment.\nFor example, you can specify your desired storage.dbPath or\nchange the default net.port number.mongod and mongos\nbind to localhost by default. If the members of your deployment are\nrun on different hosts or if you wish remote clients to connect to\nyour deployment, you must specify the net.bindIp setting."},{"@type":"HowToStep","text":"Start the MongoDB server with Active Directory authentication and authorization.Start the MongoDB server with the --config option, specifying the\npath to the configuration file created during this procedure. If the\nMongoDB server is currently running, make the appropriate preparations to\nstop the server.Windows (Microsoft Windows) MongoDB deployments must use\nmongod.exe instead of mongod."},{"@type":"HowToStep","text":"Connect to the MongoDB server.Connect to the MongoDB server, authenticating as a user whose direct or\ntransitive group membership corresponds to a MongoDB role on the admin\ndatabase with userAdmin, userAdminAnyDatabase,\nor a custom role with equivalent privileges.Use mongosh to authenticate to the MongoDB\nserver, set the following options:--host with the hostname of the MongoDB server--port with the port of the MongoDB server--username to the user's username--password to the user's password--authenticationMechanism to 'PLAIN'--authenticationDatabase to '$external'Previously in this procedure, you configured the\ndn:CN=dba,CN=Users,DC=example,DC=com role on the admin database\nwith the required permissions. This role corresponds to an AD\n(Active Directory) group. Based on the configured AD users, you can authenticate as the user\[email protected] and receive the required permissions.If you do not specify the password to the -p command-line option, mongosh\nprompts for the password.Windows (Microsoft Windows) MongoDB deployments must use\nmongo.exe instead of mongosh.Given the configured Active Directory users, the user authenticates successfully and\nreceives the appropriate permissions.If you want to authenticate as an existing non-$external user, set\n--authenticationMechanism to SCRAM authentication mechanism (e.g. SCRAM-SHA-1 or SCRAM-SHA-256 as appropriate). This requires\nthat the MongoDB server's setParameter\nauthenticationMechanisms includes SCRAM-SHA-1 and/or SCRAM-SHA-256."},{"@type":"HowToStep","text":"Create roles for mapping returned AD (Active Directory) groups.For each group on the AD (Active Directory) server you wish to use\nfor MongoDB authorization, you must create a matching role on the MongoDB\nserver's admin database.The following operation creates a role named after the AD (Active\nDirectory) group DN CN=PrimaryApplication,CN=Users,DC=example,DC=com,\nassigning roles and privileges appropriate to that group:Given the configured Active Directory groups, MongoDB grants a user authenticating\nas either [email protected] or [email protected] the\nreadWrite role on the PrimaryApplication database.To manage roles on the admin database, you must be authenticated as a\nuser with userAdmin on admin,\nuserAdminAnyDatabase, or a custom role on with equivalent\nprivileges."},{"@type":"HowToStep","text":"Transition existing users from $external to the ActiveDirectory serverIf upgrading an existing installation with users configured\non the $external database, you must meet the following requirements for\neach user to ensure access after configuring MongoDB for AD (Active\nDirectory) authentication and authorization:User has a corresponding user object on the AD (Active Directory)\nserver.User has membership in the appropriate groups on the AD (Active\nDirectory) server.MongoDB contains the roles on the admin database named for the user's\nAD (Active Directory) groups, such that the authorized user\nretains its privileges.The following user exists on the $external database:Assuming the user belongs to the AD (Active Directory) group\nCN=marketing,CN=Users,DC=example,DC=com, the following operation\ncreates a matching role with the appropriate privileges:Based on the configured queryTemplate,\nMongoDB authorizes any user who has direct or transitive membership in the\nCN=marketing,CN=Users,DC=example,DC=com group to perform\nread operations on the web_analytics and\nPrimaryApplication databases.When configuring a role for a corresponding AD (Active Directory)\ngroup, remember that all users with membership in that group can\nreceive the assigned roles and privileges. Consider applying the\nprinciple of least privilege\nwhen configuring MongoDB roles, AD (Active Directory) groups,\nor group membership.If you want to continue allowing users on non-$external databases\nto access MongoDB, you must include SCRAM authentication mechanism\n(e.g. SCRAM-SHA-1 and/or SCRAM-SHA-256) in the\nsetParameter authenticationMechanisms\nconfiguration option. For example:Alternatively, transition non-$external users to AD (Active\nDirectory) by following the above procedure."}],"name":"Procedure","image":"https://webimages.mongodb.com/_com_assets/cms/kuyj2focmkbxv7gh3-stacked_default_slate_blue.svg?auto=format%252Ccompress"}
</script>
<div class="css-4nyere eccljxs0">
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
1
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Configure TLS/SSL for the server running MongoDB
<a class="headerlink leafygreen-ui-1kepx47" href="#configure-tls-ssl-for-the-server-running-mongodb" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="configure-tls-ssl-for-the-server-running-mongodb">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
To connect to the
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
(AD) server via TLS/SSL, the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
require access to the
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
server's Certificate Authority (CA) certificate.
</p>
<p class="leafygreen-ui-1kp3ins">
On Linux, specify the
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
server's CA certificates
via the
<code class="leafygreen-ui-1l06pbn">
TLS_CACERT
</code>
or
<code class="leafygreen-ui-1l06pbn">
TLS_CACERTDIR
</code>
option in the
<code class="leafygreen-ui-1l06pbn">
ldap.conf
</code>
file.
</p>
<p class="leafygreen-ui-1kp3ins">
Your platform's package manager creates the
<code class="leafygreen-ui-1l06pbn">
ldap.conf
</code>
file while
installing MongoDB Enterprise's
<code class="leafygreen-ui-1l06pbn">
libldap
</code>
dependency. For complete
documentation on the configuration file or the referenced options, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="http://www.openldap.org/software/man.cgi?query=ldap.conf" rel="noopener noreferrer">
<span>
ldap.conf
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
.
</p>
<p class="leafygreen-ui-1kp3ins">
On Microsoft
<span class="leafygreen-ui-vm4wms" tabindex="0">
Windows
</span>
, load the
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
server's Certificate Authority (CA) certificates with the
platform's credential management tool. The exact credential management tool
is
<span class="leafygreen-ui-vm4wms" tabindex="0">
Windows
</span>
version dependent. To use the tool,
refer to its documentation for your version of
<span class="leafygreen-ui-vm4wms" tabindex="0">
Windows
</span>
.
</p>
<p class="leafygreen-ui-1kp3ins">
If
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
cannot access to the
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
CA files, they cannot create TLS/SSL connections to the
Active Directory server.
</p>
<p class="leafygreen-ui-1kp3ins">
Optionally, set
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-security.ldap.transportSecurity">
<code class="leafygreen-ui-1l06pbn">
security.ldap.transportSecurity
</code>
</a>
to
<code class="leafygreen-ui-1l06pbn">
none
</code>
to disable TLS/SSL.
</p>
<div class="leafygreen-ui-1sjx7ru" role="note">
<h2 class="leafygreen-ui-29m78u">
Warning
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Setting
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-security.ldap.transportSecurity">
<code class="leafygreen-ui-1l06pbn">
transportSecurity
</code>
</a>
to
<code class="leafygreen-ui-1l06pbn">
none
</code>
transmits
plaintext information, including user credentials, between MongoDB and
the
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
server.
</p>
</div>
</div>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
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<div class="css-19lsqsq e1ckbxcu2">
2
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Connect to the MongoDB server.
<a class="headerlink leafygreen-ui-1kepx47" href="#connect-to-the-mongodb-server" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="connect-to-the-mongodb-server">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Connect to the MongoDB server using
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
using the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/options/#std-option-mongosh.--host" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
--host
</code>
</span>
</a>
and
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/options/#std-option-mongosh.--port" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
--port
</code>
</span>
</a>
options.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"mongosh --host <hostname> --port <port>","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">mongosh --host <hostname> --port <port></td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
If your MongoDB server currently enforces authentication, you must
authenticate to the
<code class="leafygreen-ui-1l06pbn">
admin
</code>
database as a user with role management
privileges, such as those provided by
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/built-in-roles/#mongodb-authrole-userAdmin">
<code class="leafygreen-ui-1l06pbn">
userAdmin
</code>
</a>
or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/built-in-roles/#mongodb-authrole-userAdminAnyDatabase">
<code class="leafygreen-ui-1l06pbn">
userAdminAnyDatabase
</code>
</a>
. Include the appropriate
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/options/#std-option-mongosh.--authenticationMechanism" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
--authenticationMechanism
</code>
</span>
</a>
for the
MongoDB server's configured authentication mechanism.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"mongosh --host <hostname> --port <port> --username <user> --password <pass> --authenticationDatabase=\"admin\" --authenticationMechanism=\"<mechanism>\"","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">mongosh --host <hostname> --port <port> --username <user> --password <pass> --authenticationDatabase=<span class="lg-highlight-string">"admin"</span> --authenticationMechanism=<span class="lg-highlight-string">"<mechanism>"</span></td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
For
<span class="leafygreen-ui-vm4wms" tabindex="0">
Windows
</span>
MongoDB deployments, you should replace
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
with
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/mongo/#mongodb-binary-bin.mongo">
<code class="leafygreen-ui-1l06pbn">
mongo.exe
</code>
</a>
</p>
</div>
</div>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
3
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Create user administrative role.
<a class="headerlink leafygreen-ui-1kepx47" href="#create-user-administrative-role" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="create-user-administrative-role">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
To manage MongoDB users using
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
, you need to
create at least one role on the
<code class="leafygreen-ui-1l06pbn">
admin
</code>
database that can create and
manage roles, such as those provided by
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/built-in-roles/#mongodb-authrole-userAdmin">
<code class="leafygreen-ui-1l06pbn">
userAdmin
</code>
</a>
or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/built-in-roles/#mongodb-authrole-userAdminAnyDatabase">
<code class="leafygreen-ui-1l06pbn">
userAdminAnyDatabase
</code>
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
The role's name must exactly match the Distinguished Name of an
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
group. The group must have at least one
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
user as a member.
</p>
<p class="leafygreen-ui-1kp3ins">
Given the available
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/kerberos-auth-activedirectory-authz/#std-label-kerb-auth-ldap-authz-groupObj">
Active Directory groups
</a>
,the following operation:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Creates a role named for the
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
group
<code class="leafygreen-ui-1l06pbn">
CN=dba,CN=Users,DC=example,DC=com
</code>
, and
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Assigns it the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/built-in-roles/#mongodb-authrole-userAdminAnyDatabase">
<code class="leafygreen-ui-1l06pbn">
userAdminAnyDatabase
</code>
</a>
role on the
<code class="leafygreen-ui-1l06pbn">
admin
</code>
database.
</p>
</li>
</ul>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"var admin = db.getSiblingDB(\"admin\")\nadmin.createRole(\n {\n role: \"CN=dba,CN=Users,DC=example,DC=com\",\n privileges: [],\n roles: [ \"userAdminAnyDatabase\" ]\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> admin <!-- -->= <!-- -->db.<span class="lg-highlight-title lg-highlight-function">getSiblingDB</span>(<span class="lg-highlight-string">"admin"</span>)</td></tr><tr class=""><td class="leafygreen-ui-7razhx">admin.<span class="lg-highlight-title lg-highlight-function">createRole</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">role</span>: <span class="lg-highlight-string">"CN=dba,CN=Users,DC=example,DC=com"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">privileges</span>: <!-- -->[<!-- -->]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">roles</span>: <!-- -->[ <span class="lg-highlight-string">"userAdminAnyDatabase"</span> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
You could alternatively grant the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/built-in-roles/#mongodb-authrole-userAdmin">
<code class="leafygreen-ui-1l06pbn">
userAdmin
</code>
</a>
role for each
database the user should have user administrative privileges on. These roles
provide the necessary privileges for role creation and management.
</p>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Consider applying the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://csrc.nist.gov/glossary/term/least_privilege" rel="noopener noreferrer">
<span>
principle of least privilege
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
when configuring MongoDB roles,
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
groups, or
group membership.
</p>
</div>
</div>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
4
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Create a MongoDB configuration file.
<a class="headerlink leafygreen-ui-1kepx47" href="#create-a-mongodb-configuration-file" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="create-a-mongodb-configuration-file">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
A MongoDB
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/configuration/#std-label-configuration-file">
configuration file
</a>
is a
plain-text YAML file with the
<code class="leafygreen-ui-1l06pbn">
.conf
</code>
file extension.
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
If you are upgrading an existing MongoDB deployment, copy the
current configuration file and work from that copy.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
(Linux Only) If this is a new deployment
<em>
and
</em>
you used your platform's
package manager to install MongoDB Enterprise, the installation includes
the
<code class="leafygreen-ui-1l06pbn">
/etc/mongod.conf
</code>
default configuration file. Use that default
configuration file, or make a copy of that file to work from.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
If no such file exists, create an empty file with the
<code class="leafygreen-ui-1l06pbn">
.conf
</code>
extension
and work from that new configuration file.
</p>
</li>
</ul>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
5
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Configure MongoDB to connect to Active Directory.
<a class="headerlink leafygreen-ui-1kepx47" href="#configure-mongodb-to-connect-to-active-directory" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="configure-mongodb-to-connect-to-active-directory">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
In the MongoDB configuration file, set
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-security.ldap.servers">
<code class="leafygreen-ui-1l06pbn">
security.ldap.servers
</code>
</a>
to
the host and port of the
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
server. If your
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
infrastructure includes multiple
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
servers for the purpose of replication, specify the host
and port of the servers as a comma-delimited list to
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-security.ldap.servers">
<code class="leafygreen-ui-1l06pbn">
security.ldap.servers
</code>
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
You must also enable LDAP authentication by setting
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-security.authorization">
<code class="leafygreen-ui-1l06pbn">
security.authorization
</code>
</a>
to
<code class="leafygreen-ui-1l06pbn">
enabled
</code>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-setParameter">
<code class="leafygreen-ui-1l06pbn">
setParameter
</code>
</a>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/parameters/#mongodb-parameter-param.authenticationMechanisms">
<code class="leafygreen-ui-1l06pbn">
authenticationMechanisms
</code>
</a>
to
<code class="leafygreen-ui-1l06pbn">
PLAIN
</code>
</p>
<div class="leafygreen-ui-vg7qwp" role="note">
<h2 class="leafygreen-ui-2xicti">
Example
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
To connect to an
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
server located at
<code class="leafygreen-ui-1l06pbn">
activedirectory.example.net
</code>
, include the following in the
configuration file:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"security:\n authorization: \"enabled\"\n ldap:\n servers: \"activedirectory.example.net\"\nsetParameter:\n authenticationMechanisms: 'PLAIN'","programmingLanguage":"YAML"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light yaml leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">security:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">authorization:</span> <span class="lg-highlight-string">"enabled"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">ldap:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">servers:</span> <span class="lg-highlight-string">"activedirectory.example.net"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">setParameter:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">authenticationMechanisms:</span> <span class="lg-highlight-string">'PLAIN'</span></td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
MongoDB must bind to the
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
server to perform
queries. By default, MongoDB uses the simple authentication mechanism to
bind itself to the
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
server.
</p>
<p class="leafygreen-ui-1kp3ins">
Alternatively, you can configure the following settings in the configuration
file to bind to the
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
server using
<code class="leafygreen-ui-1l06pbn">
SASL
</code>
:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Set
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-security.ldap.bind.method">
<code class="leafygreen-ui-1l06pbn">
security.ldap.bind.method
</code>
</a>
to
<code class="leafygreen-ui-1l06pbn">
sasl
</code>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-security.ldap.bind.saslMechanisms">
<code class="leafygreen-ui-1l06pbn">
security.ldap.bind.saslMechanisms
</code>
</a>
, specifying a string of
comma-separated SASL mechanisms the
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
server
supports.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
This tutorial uses the default
<code class="leafygreen-ui-1l06pbn">
simple
</code>
LDAP authentication mechanism.
</p>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
6
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Configure LDAP Query Template for authorization.
<a class="headerlink leafygreen-ui-1kepx47" href="#configure-ldap-query-template-for-authorization" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="configure-ldap-query-template-for-authorization">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
In the MongoDB configuration file, set
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-security.ldap.authz.queryTemplate">
<code class="leafygreen-ui-1l06pbn">
security.ldap.authz.queryTemplate
</code>
</a>
to an
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://tools.ietf.org/html/rfc4516" rel="noopener noreferrer">
<span>
RFC4516
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
formatted LDAP query URL template.
</p>
<p class="leafygreen-ui-1kp3ins">
In the template, you can use either:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
{USER}
</code>
placeholder to substitute the authenticated username into
the LDAP query URL.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
{PROVIDED_USER}
</code>
placeholder to substitute the supplied username,
i.e. before either authentication or LDAP transformation, into the
LDAP query.
</p>
</li>
</ul>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
A full description of
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://tools.ietf.org/html/rfc4515" rel="noopener noreferrer">
<span>
RFC4515
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
,
RFC4516, or
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
queries is out of scope for
this tutorial. The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-security.ldap.authz.queryTemplate">
<code class="leafygreen-ui-1l06pbn">
queryTemplate
</code>
</a>
provided
in this tutorial is an example only, and may not be applicable for your
specific
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
deployment.
</p>
</div>
</div>
<div class="leafygreen-ui-vg7qwp" role="note">
<h2 class="leafygreen-ui-2xicti">
Example
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
The following query template returns any groups that list
<code class="leafygreen-ui-1l06pbn">
{USER}
</code>
as a
member, following recursive group memberships. This LDAP query assumes
that group objects track user membership by storing full user
Distinguished Name (DN) using the
<code class="leafygreen-ui-1l06pbn">
member
</code>
attribute. The query
includes the
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
specific matching rule OID
<code class="leafygreen-ui-1l06pbn">
1.2.840.113556.1.4.1941
</code>
for
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://msdn.microsoft.com/en-us/library/aa746475(v=vs.85).aspx" rel="noopener noreferrer">
<span>
LDAP_MATCHING_RULE_IN_CHAIN
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
. This
matching rule is an
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
specific extension to
LDAP search filters.
</p>
<div class="leafygreen-ui-1sjx7ru" role="note">
<h2 class="leafygreen-ui-29m78u">
Warning
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
If the
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
forest contains a large number of
groups, the recursive
<code class="leafygreen-ui-1l06pbn">
member:1.2.840.113556.1.4.1941
</code>
filter can lead
to significant performance degradation.
</p>
</div>
</div>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"security:\n ldap:\n authz:\n queryTemplate:\n \"DC=example,DC=com??sub?(&(objectClass=group)(member:1.2.840.113556.1.4.1941:={USER}))\"","programmingLanguage":"YAML"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light yaml leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">security:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">ldap:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">authz:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">queryTemplate:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"DC=example,DC=com??sub?(&(objectClass=group)(member:1.2.840.113556.1.4.1941:={USER}))"</span></td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Using the query template, MongoDB substitutes
<code class="leafygreen-ui-1l06pbn">
{USER}
</code>
with the
authenticated username to query the LDAP server.
</p>
<p class="leafygreen-ui-1kp3ins">
For example, a user authenticates as
<code class="leafygreen-ui-1l06pbn">
CN=sam,CN=Users,DC=dba,DC=example,DC=com
</code>
. MongoDB creates an LDAP
query based on the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-security.ldap.authz.queryTemplate">
<code class="leafygreen-ui-1l06pbn">
queryTemplate
</code>
</a>
,
substituting the
<code class="leafygreen-ui-1l06pbn">
{USER}
</code>
token with the authenticated/transfored username. The Active
Directory server performs a recursive group lookup for any group that
either directly or transitively lists the user as a member. Based on the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-activedirectory-authauthz-groupObj" target="_self">
<span>
Active Directory groups
</span>
</a>
, the
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
server returns the following groups:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
CN=dba,CN=Users,DC=example,DC=com
</code>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
CN=engineering,CN=Users,DC=example,DC=com
</code>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
CN=PrimaryApplication,CN=Users,DC=example,DC=com
</code>
</p>
</li>
</ul>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
MongoDB maps each returned group
<span class="leafygreen-ui-vm4wms" tabindex="0">
DN
</span>
to a role
on the
<code class="leafygreen-ui-1l06pbn">
admin
</code>
database. For each mapped group
<span class="leafygreen-ui-vm4wms" tabindex="0">
DN
</span>
, if there is an existing role on the
<code class="leafygreen-ui-1l06pbn">
admin
</code>
database whose name
exactly matches the
<span class="leafygreen-ui-vm4wms" tabindex="0">
DN
</span>
, MongoDB grants the user
the roles and privileges assigned to that role.
</p>
<p class="leafygreen-ui-1kp3ins">
The matching rule
<code class="leafygreen-ui-1l06pbn">
LDAP_MATCHING_RULE_IN_CHAIN
</code>
requires providing the
full
<span class="leafygreen-ui-vm4wms" tabindex="0">
DN
</span>
of the authenticating user. If users
authenticate using a different username format, such as their
<code class="leafygreen-ui-1l06pbn">
user
principal name
</code>
, you must transform the incoming usernames into
<span class="leafygreen-ui-vm4wms" tabindex="0">
DNs
</span>
using
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-security.ldap.userToDNMapping">
<code class="leafygreen-ui-1l06pbn">
security.ldap.userToDNMapping
</code>
.
</a>
</p>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
7
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Optional: Transform incoming usernames for authentication via Active Directory,
<a class="headerlink leafygreen-ui-1kepx47" href="#optional-transform-incoming-usernames-for-authentication-via-active-directory" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="optional-transform-incoming-usernames-for-authentication-via-active-directory">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
If your users authenticate with a username that is not a full LDAP DN,
you may need to transform the username to support LDAP authentication
or authorization. MongoDB uses the transformed username for both
authentication and authorization.
</p>
<p class="leafygreen-ui-1kp3ins">
In the MongoDB configuration file, set
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-security.ldap.userToDNMapping">
<code class="leafygreen-ui-1l06pbn">
userToDNMapping
</code>
</a>
to transform the authenticating
user's provided username into an
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
DN to support
the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-security.ldap.authz.queryTemplate">
<code class="leafygreen-ui-1l06pbn">
queryTemplate
</code>
.
</a>
</p>
<div class="leafygreen-ui-vg7qwp" role="note">
<h2 class="leafygreen-ui-2xicti">
Example
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Given the configured
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-security.ldap.authz.queryTemplate">
<code class="leafygreen-ui-1l06pbn">
queryTemplate
</code>
</a>
,
users must authenticate with their full LDAP DN. If users instead
authenticate using their
<code class="leafygreen-ui-1l06pbn">
userPrincipalName
</code>
, then a transformation
must be applied to convert the provided username to a full LDAP DN.
</p>
<p class="leafygreen-ui-1kp3ins">
The following
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-security.ldap.userToDNMapping">
<code class="leafygreen-ui-1l06pbn">
userToDNMapping
</code>
</a>
configuration
uses the
<code class="leafygreen-ui-1l06pbn">
match
</code>
regular expression filter to capture the provided
username. MongoDB inserts the captured username into the
<code class="leafygreen-ui-1l06pbn">
ldapQuery
</code>
query template before executing the query.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"security:\n ldap:\n userToDNMapping:\n '[\n {\n match : \"(.+)\",\n ldapQuery: \"DC=example,DC=com??sub?(userPrincipalName={0})\"\n }\n ]'","programmingLanguage":"YAML"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light yaml leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">security:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">ldap:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">userToDNMapping:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">'[</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> {</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> match : "(.+)",</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> ldapQuery: "DC=example,DC=com??sub?(userPrincipalName={0})"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> }</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> ]'</span></td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The Active Directory server returns the full LDAP DN associated to the
user object with a matching
<code class="leafygreen-ui-1l06pbn">
userPrincipalName
</code>
. MongoDB can then use
this transformed username for authentication
<em>
and
</em>
authorization.
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
You must modify the given sample configuration to match your deployment. For
example, the
<code class="leafygreen-ui-1l06pbn">
ldapQuery
</code>
base
<span class="leafygreen-ui-vm4wms" tabindex="0">
DN
</span>
must match
the base
<span class="leafygreen-ui-vm4wms" tabindex="0">
DN
</span>
which contains your user entities.
Other modifications may be necessary to support your
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
deployment.
</p>
<div class="leafygreen-ui-vg7qwp" role="note">
<h2 class="leafygreen-ui-2xicti">
Example
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
A user authenticates as
<code class="leafygreen-ui-1l06pbn">
[email protected]
</code>
. MongoDB first
applies any transformations specified in
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-security.ldap.userToDNMapping">
<code class="leafygreen-ui-1l06pbn">
userToDNMapping
</code>
</a>
. Based on the provided
configuration, MongoDB captures the username in the
<code class="leafygreen-ui-1l06pbn">
match
</code>
stage and
executes an LDAP query:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"DC=example,DC=com??sub?([email protected])","programmingLanguage":"YAML"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light yaml leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string">DC=example,DC=com??sub?([email protected])</span></td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Based on the configured
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-activedirectory-authauthz-userObj" target="_self">
<span>
Active Directory
users
</span>
</a>
, the
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
server should return
<code class="leafygreen-ui-1l06pbn">
CN=alice,CN=Users,DC=engineering,DC=example,DC=com
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
MongoDB then executes the LDAP query configured in
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-security.ldap.authz.queryTemplate">
<code class="leafygreen-ui-1l06pbn">
queryTemplate
</code>
</a>
, replacing the
<code class="leafygreen-ui-1l06pbn">
{USER}
</code>
token with the
<em>
transformed
</em>
username
<code class="leafygreen-ui-1l06pbn">
CN=alice,CN=Users,DC=engineering,DC=example,DC=com
</code>
.
</p>
</div>
</div>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
If you use
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-security.ldap.userToDNMapping">
<code class="leafygreen-ui-1l06pbn">
userToDNMapping
</code>
</a>
's
<code class="leafygreen-ui-1l06pbn">
substitution
</code>
parameter to transform the group name, the result
of the substitution
<strong>
must
</strong>
be an
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.ietf.org/rfc/rfc4514.txt" rel="noopener noreferrer">
<span>
RFC4514
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
escaped string.
</p>
</div>
</div>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
8
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Configure query credentials.
<a class="headerlink leafygreen-ui-1kepx47" href="#configure-query-credentials" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="configure-query-credentials">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
MongoDB requires credentials for performing queries on the
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
server.
</p>
<p class="leafygreen-ui-1kp3ins">
Configure the following settings in the configuration file:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-security.ldap.bind.queryUser">
<code class="leafygreen-ui-1l06pbn">
security.ldap.bind.queryUser
</code>
</a>
, specifying the Active Directory user the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
binds as for performing queries on
the
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
server.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-security.ldap.bind.queryPassword">
<code class="leafygreen-ui-1l06pbn">
security.ldap.bind.queryPassword
</code>
</a>
, specifying the password for
the specified
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-security.ldap.bind.queryUser">
<code class="leafygreen-ui-1l06pbn">
queryUser
</code>
.
</a>
</p>
</li>
</ul>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"security:\n ldap:\n bind:\n queryUser: \"[email protected]\"\n queryPassword: \"secret123\"","programmingLanguage":"YAML"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light yaml leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">security:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">ldap:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">bind:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">queryUser:</span> <span class="lg-highlight-string">"[email protected]"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">queryPassword:</span> <span class="lg-highlight-string">"secret123"</span></td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
On
<span class="leafygreen-ui-vm4wms" tabindex="0">
Windows
</span>
MongoDB servers, you can set
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-security.ldap.bind.useOSDefaults">
<code class="leafygreen-ui-1l06pbn">
security.ldap.bind.useOSDefaults
</code>
</a>
to
<code class="leafygreen-ui-1l06pbn">
true
</code>
to use the
credentials of the OS user instead of
<code class="leafygreen-ui-1l06pbn">
queryUser
</code>
and
<code class="leafygreen-ui-1l06pbn">
queryPassword
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-security.ldap.bind.queryUser">
<code class="leafygreen-ui-1l06pbn">
queryUser
</code>
</a>
must
have permission to perform all LDAP queries on behalf of MongoDB.
</p>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
9
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Optional: Add additional configuration settings.
<a class="headerlink leafygreen-ui-1kepx47" href="#optional-add-additional-configuration-settings" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="optional-add-additional-configuration-settings">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Add any additional configuration options required for your deployment.
For example, you can specify your desired
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-storage.dbPath">
<code class="leafygreen-ui-1l06pbn">
storage.dbPath
</code>
</a>
or
change the default
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-net.port">
<code class="leafygreen-ui-1l06pbn">
net.port
</code>
</a>
number.
</p>
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
bind to localhost by default. If the members of your deployment are
run on different hosts or if you wish remote clients to connect to
your deployment, you must specify the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-net.bindIp">
<code class="leafygreen-ui-1l06pbn">
net.bindIp
</code>
</a>
setting.
</p>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
10
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Start the MongoDB server with Active Directory authentication and authorization.
<a class="headerlink leafygreen-ui-1kepx47" href="#start-the-mongodb-server-with-active-directory-authentication-and-authorization" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="start-the-mongodb-server-with-active-directory-authentication-and-authorization">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Start the MongoDB server with the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#std-option-mongod.--config">
<code class="leafygreen-ui-1l06pbn">
--config
</code>
</a>
option, specifying the
path to the configuration file created during this procedure. If the
MongoDB server is currently running, make the appropriate preparations to
stop the server.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"mongod --config <path-to-config-file>","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">mongod --config <path-to-config-file></td></tr></tbody></table></code></pre>
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
<span class="leafygreen-ui-vm4wms" tabindex="0">
Windows
</span>
MongoDB deployments must use
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod.exe/#mongodb-binary-bin.mongod.exe">
<code class="leafygreen-ui-1l06pbn">
mongod.exe
</code>
</a>
instead of
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
.
</a>
</p>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
11
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Connect to the MongoDB server.
<a class="headerlink leafygreen-ui-1kepx47" href="#connect-to-the-mongodb-server-1" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="connect-to-the-mongodb-server-1">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Connect to the MongoDB server, authenticating as a user whose direct or
transitive group membership corresponds to a MongoDB role on the
<code class="leafygreen-ui-1l06pbn">
admin
</code>
database with
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/built-in-roles/#mongodb-authrole-userAdmin">
<code class="leafygreen-ui-1l06pbn">
userAdmin
</code>
</a>
,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/built-in-roles/#mongodb-authrole-userAdminAnyDatabase">
<code class="leafygreen-ui-1l06pbn">
userAdminAnyDatabase
</code>
</a>
,
or a custom role with equivalent privileges.
</p>
<p class="leafygreen-ui-1kp3ins">
Use
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
to authenticate to the MongoDB
server, set the following options:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/options/#std-option-mongosh.--host" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
--host
</code>
</span>
</a>
with the hostname of the MongoDB server
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/options/#std-option-mongosh.--port" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
--port
</code>
</span>
</a>
with the port of the MongoDB server
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/options/#std-option-mongosh.--username" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
--username
</code>
</span>
</a>
to the user's username
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/options/#std-option-mongosh.--password" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
--password
</code>
</span>
</a>
to the user's password
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/options/#std-option-mongosh.--authenticationMechanism" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
--authenticationMechanism
</code>
</span>
</a>
to
<code class="leafygreen-ui-1l06pbn">
'PLAIN'
</code>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/options/#std-option-mongosh.--authenticationDatabase" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
--authenticationDatabase
</code>
</span>
</a>
to
<code class="leafygreen-ui-1l06pbn">
'$external'
</code>
</p>
</li>
</ul>
<div class="leafygreen-ui-vg7qwp" role="note">
<h2 class="leafygreen-ui-2xicti">
Example
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Previously in this procedure, you configured the
<code class="leafygreen-ui-1l06pbn">
dn:CN=dba,CN=Users,DC=example,DC=com
</code>
role on the
<code class="leafygreen-ui-1l06pbn">
admin
</code>
database
with the required permissions. This role corresponds to an
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
group. Based on the configured
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-activedirectory-authauthz-userObj" target="_self">
<span>
AD users
</span>
</a>
, you can authenticate as the user
<code class="leafygreen-ui-1l06pbn">
[email protected]
</code>
and receive the required permissions.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"mongosh --username [email protected] --password --authenticationMechanism 'PLAIN' --authenticationDatabase '$external' --host <hostname> --port <port>","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">mongosh --username [email protected] --password --authenticationMechanism <span class="lg-highlight-string">'PLAIN'</span> --authenticationDatabase <span class="lg-highlight-string">'$external'</span> --host <hostname> --port <port></td></tr></tbody></table></code></pre>
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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<p class="leafygreen-ui-1kp3ins">
If you do not specify the password to the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/options/#std-option-mongosh.--password" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
-p
</code>
</span>
</a>
command-line option,
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
prompts for the password.
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
<span class="leafygreen-ui-vm4wms" tabindex="0">
Windows
</span>
MongoDB deployments must use
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/mongo/#mongodb-binary-bin.mongo">
<code class="leafygreen-ui-1l06pbn">
mongo.exe
</code>
</a>
instead of
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
.
</span>
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
Given the configured
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-activedirectory-authauthz-userObj" target="_self">
<span>
Active Directory users
</span>
</a>
, the user authenticates successfully and
receives the appropriate permissions.
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
If you want to authenticate as an existing non-
<code class="leafygreen-ui-1l06pbn">
$external
</code>
user, set
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/reference/options/#std-option-mongosh.--authenticationMechanism" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
--authenticationMechanism
</code>
</span>
</a>
to SCRAM authentication mechanism (e.g.
<code class="leafygreen-ui-1l06pbn">
SCRAM-SHA-1
</code>
or
<code class="leafygreen-ui-1l06pbn">
SCRAM-SHA-256
</code>
as appropriate). This requires
that the MongoDB server's
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-setParameter">
<code class="leafygreen-ui-1l06pbn">
setParameter
</code>
</a>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/parameters/#mongodb-parameter-param.authenticationMechanisms">
<code class="leafygreen-ui-1l06pbn">
authenticationMechanisms
</code>
</a>
includes
<code class="leafygreen-ui-1l06pbn">
SCRAM-SHA-1
</code>
and/or
<code class="leafygreen-ui-1l06pbn">
SCRAM-SHA-256
</code>
.
</p>
</div>
</div>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
12
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Create roles for mapping returned
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
groups.
<a class="headerlink leafygreen-ui-1kepx47" href="#create-roles-for-mapping-returned-ad-active-directory-groups" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="create-roles-for-mapping-returned-ad-active-directory-groups">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
For each group on the
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
server you wish to use
for MongoDB authorization, you must create a matching role on the MongoDB
server's
<code class="leafygreen-ui-1l06pbn">
admin
</code>
database.
</p>
<div class="leafygreen-ui-vg7qwp" role="note">
<h2 class="leafygreen-ui-2xicti">
Example
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
The following operation creates a role named after the
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
group DN
<code class="leafygreen-ui-1l06pbn">
CN=PrimaryApplication,CN=Users,DC=example,DC=com
</code>
,
assigning roles and privileges appropriate to that group:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.getSiblingDB(\"admin\").createRole(\n {\n role: \"CN=PrimaryApplication,CN=Users,DC=example,DC=com\",\n privileges: [],\n roles: [\n { role: \"readWrite\", db: \"PrimaryApplication\" }\n ]\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">getSiblingDB</span>(<span class="lg-highlight-string">"admin"</span>).<span class="lg-highlight-title lg-highlight-function">createRole</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">role</span>: <span class="lg-highlight-string">"CN=PrimaryApplication,CN=Users,DC=example,DC=com"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">privileges</span>: <!-- -->[<!-- -->]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">roles</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">role</span>: <span class="lg-highlight-string">"readWrite"</span>, <span class="lg-highlight-attr">db</span>: <span class="lg-highlight-string">"PrimaryApplication"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Given the configured
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-activedirectory-authauthz-groupObj" target="_self">
<span>
Active Directory groups
</span>
</a>
, MongoDB grants a user authenticating
as either
<code class="leafygreen-ui-1l06pbn">
[email protected]
</code>
or
<code class="leafygreen-ui-1l06pbn">
[email protected]
</code>
the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/built-in-roles/#mongodb-authrole-readWrite">
<code class="leafygreen-ui-1l06pbn">
readWrite
</code>
</a>
role on the
<code class="leafygreen-ui-1l06pbn">
PrimaryApplication
</code>
database.
</p>
</div>
</div>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
To manage roles on the
<code class="leafygreen-ui-1l06pbn">
admin
</code>
database, you must be authenticated as a
user with
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/built-in-roles/#mongodb-authrole-userAdmin">
<code class="leafygreen-ui-1l06pbn">
userAdmin
</code>
</a>
on
<code class="leafygreen-ui-1l06pbn">
admin
</code>
,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/built-in-roles/#mongodb-authrole-userAdminAnyDatabase">
<code class="leafygreen-ui-1l06pbn">
userAdminAnyDatabase
</code>
</a>
, or a custom role on with equivalent
privileges.
</p>
</div>
</div>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
13
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Transition existing users from
<code class="leafygreen-ui-1l06pbn">
$external
</code>
to the ActiveDirectory server
<a class="headerlink leafygreen-ui-1kepx47" href="#transition-existing-users-from-external-to-the-activedirectory-server" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="transition-existing-users-from-external-to-the-activedirectory-server">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
If upgrading an existing installation with
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/security-users/#std-label-users">
users
</a>
configured
on the
<code class="leafygreen-ui-1l06pbn">
$external
</code>
database, you must meet the following requirements for
each user to ensure access after configuring MongoDB for
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
authentication and authorization:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
User has a corresponding user object on the
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
server.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
User has membership in the appropriate groups on the
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
server.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
MongoDB contains the roles on the
<code class="leafygreen-ui-1l06pbn">
admin
</code>
database named for the user's
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
groups, such that the authorized user
retains its privileges.
</p>
</li>
</ul>
<div class="leafygreen-ui-vg7qwp" role="note">
<h2 class="leafygreen-ui-2xicti">
Example
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
The following user exists on the
<code class="leafygreen-ui-1l06pbn">
$external
</code>
database:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n user : \"[email protected]\",\n roles: [\n { role : \"read\", db : \"web_analytics\" },\n { role : \"read\", db : \"PrimaryApplication\" }\n ]\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->user <!-- -->: <span class="lg-highlight-string">"[email protected]"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">roles</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <!-- -->role <!-- -->: <span class="lg-highlight-string">"read"</span>, <!-- -->db <!-- -->: <span class="lg-highlight-string">"web_analytics"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <!-- -->role <!-- -->: <span class="lg-highlight-string">"read"</span>, <!-- -->db <!-- -->: <span class="lg-highlight-string">"PrimaryApplication"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Assuming the user belongs to the
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
group
<code class="leafygreen-ui-1l06pbn">
CN=marketing,CN=Users,DC=example,DC=com
</code>
, the following operation
creates a matching role with the appropriate privileges:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.getSiblingDB(\"admin\").createRole(\n {\n role: \"CN=marketing,CN=Users,DC=example,DC=com\",\n privileges: [],\n roles: [\n { role: \"read\", db: \"web_analytics\" }\n { role: \"read\", db: \"PrimaryApplication\" }\n ]\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">getSiblingDB</span>(<span class="lg-highlight-string">"admin"</span>).<span class="lg-highlight-title lg-highlight-function">createRole</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">role</span>: <span class="lg-highlight-string">"CN=marketing,CN=Users,DC=example,DC=com"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">privileges</span>: <!-- -->[<!-- -->]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">roles</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">role</span>: <span class="lg-highlight-string">"read"</span>, <span class="lg-highlight-attr">db</span>: <span class="lg-highlight-string">"web_analytics"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">role</span>: <span class="lg-highlight-string">"read"</span>, <span class="lg-highlight-attr">db</span>: <span class="lg-highlight-string">"PrimaryApplication"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Based on the configured
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-security.ldap.authz.queryTemplate">
<code class="leafygreen-ui-1l06pbn">
queryTemplate
</code>
</a>
,
MongoDB authorizes any user who has direct or transitive membership in the
<code class="leafygreen-ui-1l06pbn">
CN=marketing,CN=Users,DC=example,DC=com
</code>
group to perform
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/built-in-roles/#mongodb-authrole-read">
<code class="leafygreen-ui-1l06pbn">
read
</code>
</a>
operations on the
<code class="leafygreen-ui-1l06pbn">
web_analytics
</code>
and
<code class="leafygreen-ui-1l06pbn">
PrimaryApplication
</code>
databases.
</p>
</div>
</div>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
When configuring a role for a corresponding
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
group, remember that
<em>
all
</em>
users with membership in that group can
receive the assigned roles and privileges. Consider applying the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://csrc.nist.gov/glossary/term/least_privilege" rel="noopener noreferrer">
<span>
principle of least privilege
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
when configuring MongoDB roles,
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
groups,
or group membership.
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
If you want to continue allowing users on non-
<code class="leafygreen-ui-1l06pbn">
$external
</code>
databases
to access MongoDB, you must include SCRAM authentication mechanism
(e.g.
<code class="leafygreen-ui-1l06pbn">
SCRAM-SHA-1
</code>
and/or
<code class="leafygreen-ui-1l06pbn">
SCRAM-SHA-256
</code>
) in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-setParameter">
<code class="leafygreen-ui-1l06pbn">
setParameter
</code>
</a>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/parameters/#mongodb-parameter-param.authenticationMechanisms">
<code class="leafygreen-ui-1l06pbn">
authenticationMechanisms
</code>
</a>
configuration option. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"setParameter:\n authenticationMechanisms: \"PLAIN,SCRAM-SHA-1,SCRAM-SHA-256\"","programmingLanguage":"YAML"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light yaml leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">setParameter:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">authenticationMechanisms:</span> <span class="lg-highlight-string">"PLAIN,SCRAM-SHA-1,SCRAM-SHA-256"</span></td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Alternatively, transition non-
<code class="leafygreen-ui-1l06pbn">
$external
</code>
users to
<span class="leafygreen-ui-vm4wms" tabindex="0">
AD
</span>
by following the above procedure.
</p>
</section>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
This procedure produces the following configuration file:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"security:\n authorization: \"enabled\"\n ldap:\n servers: \"activedirectory.example.net\"\n bind:\n queryUser: \"[email protected]\"\n queryPassword: \"secret123\"\n userToDNMapping:\n '[\n {\n match: \"(.+)\",\n ldapQuery: \"DC=example,DC=com??sub?(userPrincipalName={0})\"\n }\n ]'\n authz:\n queryTemplate: \"DC=example,DC=com??sub?(&(objectClass=group)(member:1.2.840.113556.1.4.1941:={USER}))\"\nsetParameter:\n authenticationMechanisms: \"PLAIN\"","programmingLanguage":"YAML"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light yaml leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">security:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">authorization:</span> <span class="lg-highlight-string">"enabled"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">ldap:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">servers:</span> <span class="lg-highlight-string">"activedirectory.example.net"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">bind:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">queryUser:</span> <span class="lg-highlight-string">"[email protected]"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">queryPassword:</span> <span class="lg-highlight-string">"secret123"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">userToDNMapping:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">'[</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> {</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> match: "(.+)",</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> ldapQuery: "DC=example,DC=com??sub?(userPrincipalName={0})"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> }</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> ]'</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">authz:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">queryTemplate:</span> <span class="lg-highlight-string">"DC=example,DC=com??sub?(&(objectClass=group)(member:1.2.840.113556.1.4.1941:={USER}))"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">setParameter:</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">authenticationMechanisms:</span> <span class="lg-highlight-string">"PLAIN"</span></td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The given sample configuration requires modification to match your Active
Directory schema, directory structure, and configuration. You may also require
additional
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/">
configuration file options
</a>
for your deployment.
</p>
<p class="leafygreen-ui-1kp3ins">
For more information on configuring roles and privileges, see:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/authorization/#std-label-authorization">
role-based access control
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/privilege-actions/#std-label-security-user-actions">
privilege actions
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/collection-level-access-control/">
collection level access control
</a>
</p>
</li>
</ul>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/method/db.dropAllRoles/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
db.dropAllRoles()
<a class="headerlink leafygreen-ui-1kepx47" href="#db.dropallroles--" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="db.dropallroles--">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#definition" target="_self">
<span>
Definition
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#compatibility" target="_self">
<span>
Compatibility
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#behavior" target="_self">
<span>
Behavior
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#required-access" target="_self">
<span>
Required Access
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#example" target="_self">
<span>
Example
</span>
</a>
</li>
</ul>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Definition
<a class="headerlink leafygreen-ui-1kepx47" href="#definition" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="definition">
</div>
</a>
</h2>
<dl class="method">
<dt>
<code class="leafygreen-ui-1l06pbn">
db.dropAllRoles( writeConcern )
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-method-db.dropAllRoles" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-method-db.dropAllRoles">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Deletes all
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/security-user-defined-roles/#std-label-user-defined-roles">
user-defined
</a>
roles on the
database where you run the method.
</p>
<div class="leafygreen-ui-1sjx7ru" role="note">
<h2 class="leafygreen-ui-29m78u">
Warning
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-db.dropAllRoles" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
db.dropAllRoles()
</code>
</span>
</a>
method removes
<em>
all
</em>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/security-user-defined-roles/#std-label-user-defined-roles">
user-defined
</a>
roles from the database.
</p>
</div>
</div>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
mongosh Method
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
This page documents a
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
method. This is
<em>
not
</em>
the documentation for database commands or language-specific drivers,
such as Node.js.
</p>
<p class="leafygreen-ui-1kp3ins">
For the database command, see the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/dropAllRolesFromDatabase/#mongodb-dbcommand-dbcmd.dropAllRolesFromDatabase">
<code class="leafygreen-ui-1l06pbn">
dropAllRolesFromDatabase
</code>
</a>
command
<!-- -->
.
</p>
<p class="leafygreen-ui-1kp3ins">
For MongoDB API drivers, refer to the language-specific
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/drivers/" target="_self">
<span>
MongoDB driver documentation
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-db.dropAllRoles" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
db.dropAllRoles()
</code>
</span>
</a>
method takes the following argument:
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:20%"/>
<col style="width:20%"/>
<col style="width:80%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Field
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Type
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
writeConcern
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
document
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Optional. The level of
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/write-concern/#std-label-write-concern">
write concern
</a>
for the
operation. See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/write-concern/#std-label-wc-specs">
Write Concern Specification
<!-- -->
.
</a>
</p>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<table class="css-11h39yh e1nex8bq0">
<colgroup>
<col class="field-name"/>
<col class="field-body"/>
</colgroup>
<tbody>
<tr class="css-x8snli">
<th>
Returns
<!-- -->
:
</th>
<td>
The number of
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/security-user-defined-roles/#std-label-user-defined-roles">
user-defined
</a>
roles dropped.
</td>
</tr>
</tbody>
</table>
</dd>
</dl>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Compatibility
<a class="headerlink leafygreen-ui-1kepx47" href="#compatibility" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="compatibility">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
This method is available in deployments hosted in the following environments:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas?tck=docs_server" target="_self">
<span>
MongoDB Atlas
</span>
</a>
: The fully
managed service for MongoDB deployments in the cloud
</p>
</li>
</ul>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
This command is not supported in M0, M2, and M5 clusters.
For more information, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/unsupported-commands/" target="_self">
<span>
Unsupported Commands
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/install-enterprise/#std-label-install-mdb-enterprise">
MongoDB Enterprise
</a>
: The
subscription-based, self-managed version of MongoDB
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/install-community/#std-label-install-mdb-community-edition">
MongoDB Community
</a>
: The
source-available, free-to-use, and self-managed version of MongoDB
</p>
</li>
</ul>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Behavior
<a class="headerlink leafygreen-ui-1kepx47" href="#behavior" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="behavior">
</div>
</a>
</h2>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Replica set
<a class="headerlink leafygreen-ui-1kepx47" href="#replica-set" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="replica-set">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
If run on a replica set,
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-db.dropAllRoles" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
db.dropAllRoles()
</code>
</span>
</a>
is executed using
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/write-concern/#mongodb-writeconcern-writeconcern.-majority-">
<code class="leafygreen-ui-1l06pbn">
"majority"
</code>
</a>
write concern by default.
</p>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Required Access
<a class="headerlink leafygreen-ui-1kepx47" href="#required-access" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="required-access">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
You must have the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/privilege-actions/#mongodb-authaction-dropRole">
<code class="leafygreen-ui-1l06pbn">
dropRole
</code>
</a>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/privilege-actions/#std-label-security-user-actions">
action
</a>
on a database to drop a role from that database.
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Example
<a class="headerlink leafygreen-ui-1kepx47" href="#example" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="example">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The following operations drop all
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/security-user-defined-roles/#std-label-user-defined-roles">
user-defined
</a>
roles from the
<code class="leafygreen-ui-1l06pbn">
products
</code>
database and uses a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/write-concern/#std-label-write-concern-operation">
write concern
</a>
of
<code class="leafygreen-ui-1l06pbn">
majority
</code>
.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"use products\ndb.dropAllRoles( { w: \"majority\" } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">use products</td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">dropAllRoles</span>( <!-- -->{ <span class="lg-highlight-attr">w</span>: <span class="lg-highlight-string">"majority"</span> } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The method returns the number of roles dropped:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"4","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-number">4</span></td></tr></tbody></table></code></pre>
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<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</section>
</section>
|
https://www.mongodb.com/docs/manual/core/query-plans/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Query Plans
<a class="headerlink leafygreen-ui-1kepx47" href="#query-plans" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="query-plans">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#plan-cache-entry-state" target="_self">
<span>
Plan Cache Entry State
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#plancacheshapehash" target="_self">
<span>
planCacheShapeHash
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#plancachekey" target="_self">
<span>
planCacheKey
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#availability" target="_self">
<span>
Availability
</span>
</a>
</li>
</ul>
</div>
<p class="leafygreen-ui-1kp3ins">
For any given query, the MongoDB query planner chooses and caches the
most efficient query plan given the available indexes. To evaluate the
efficiency of query plans, the query planner runs all candidate plans
during a trial period. In general, the winning plan is the query plan
that produces the most results during the trial period while performing
the least amount of work.
</p>
<p class="leafygreen-ui-1kp3ins">
The associated plan cache entry is used for subsequent queries with the
same
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-plan-cache-query-shape">
plan cache query shape
<!-- -->
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
The following diagram illustrates the query planner logic:
</p>
<div class="css-y1v7l ej97su30">
<div role="button" tabindex="-1">
<img alt="A diagram of MongoDB's query planner logic." class="leafygreen-ui-1qnf57e" height="1282" src="/docs/manual/images/general-query-planner-logic.bakedsvg.svg" style="--border-color:#C1C7C6" width="1125"/>
<div class="css-19pi7x2 ej97su31" style="--color:#444">
click to enlarge
</div>
</div>
</div>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Using
<code class="leafygreen-ui-1l06pbn">
explain
</code>
ignores all existing plan cache entries and prevents
the MongoDB query planner from creating a new plan cache entry.
</p>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-cache-entry-state">
</span>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Plan Cache Entry State
<a class="headerlink leafygreen-ui-1kepx47" href="#plan-cache-entry-state" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="plan-cache-entry-state">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
Each plan cache query shape is associated with one of three states in
the cache:
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:15%"/>
<col style="width:85%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
State
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-cache-entry-missing" target="_self">
<span>
Missing
</span>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-cache-entry-missing">
</span>
<p class="leafygreen-ui-1kp3ins">
No entry for this shape exists in the cache.
</p>
<p class="leafygreen-ui-1kp3ins">
For a query, if the cache entry state for a plan cache query shape is
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-cache-entry-missing" target="_self">
<span>
Missing
<!-- -->
:
</span>
</a>
</p>
<ol class="leafygreen-ui-rioki0" type="1">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Candidate plans are evaluated and a winning plan is selected.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The cache creates an entry for the plan cache query shape in state
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-cache-entry-inactive" target="_self">
<span>
Inactive
</span>
</a>
with a value that
quantifies the amount of work required by the plan.
</p>
</li>
</ol>
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-cache-entry-inactive" target="_self">
<span>
Inactive
</span>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-cache-entry-inactive">
</span>
<p class="leafygreen-ui-1kp3ins">
The entry in the cache is a placeholder entry for this shape.
That is, the planner has seen the shape, calculated a value that
quantifies the amount of work required by the plan and stored the
shape placeholder entry but the plan cache query shape is
<strong>
not
</strong>
used to
generate query plans.
</p>
<p class="leafygreen-ui-1kp3ins">
For a query, if the cache entry state for a shape is
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-cache-entry-inactive" target="_self">
<span>
Inactive
<!-- -->
:
</span>
</a>
</p>
<ol class="leafygreen-ui-rioki0" type="1">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Candidate plans are evaluated and a winning plan is selected.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The selected plan's value that quantifies the amount of work
required by the plan is compared to the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-cache-entry-inactive" target="_self">
<span>
Inactive
</span>
</a>
entry's. If the selected plan's value is:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<dl>
<dt>
Less than or equal to the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/query-plans/#std-label-cache-entry-inactive">
Inactive
</a>
entry's:
</dt>
<dd class="css-1ufxuu7">
<p class="leafygreen-ui-1kp3ins">
The selected plan replaces the placeholder
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-cache-entry-inactive" target="_self">
<span>
Inactive
</span>
</a>
entry and has an
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-cache-entry-active" target="_self">
<span>
Active
</span>
</a>
state.
</p>
<p class="leafygreen-ui-1kp3ins">
If before the replacement happens, the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-cache-entry-inactive" target="_self">
<span>
Inactive
</span>
</a>
entry becomes
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-cache-entry-active" target="_self">
<span>
Active
</span>
</a>
(for example, due to another query
operation), the newly active entry will only be replaced
if its value that quantifies the amount of work required
by the plan is greater than the selected plan.
</p>
</dd>
</dl>
</li>
<li class="leafygreen-ui-d7p7b6">
<dl>
<dt>
Greater than the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/query-plans/#std-label-cache-entry-inactive">
Inactive
</a>
entry's:
</dt>
<dd class="css-1ufxuu7">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-cache-entry-inactive" target="_self">
<span>
Inactive
</span>
</a>
entry remains
but its value that quantifies the amount of work required
by the plan is incremented.
</dd>
</dl>
</li>
</ul>
</li>
</ol>
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-cache-entry-active" target="_self">
<span>
Active
</span>
</a>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-cache-entry-active">
</span>
<p class="leafygreen-ui-1kp3ins">
The entry in the cache is for the winning plan. The planner can
use this entry to generate query plans.
</p>
<p class="leafygreen-ui-1kp3ins">
For a query, if the cache entry state for a shape is
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-cache-entry-active" target="_self">
<span>
Active
<!-- -->
:
</span>
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
The active entry is used to generate query plans.
</p>
<p class="leafygreen-ui-1kp3ins">
The planner also evaluates the entry's performance and if its
value that quantifies the amount of work required by the plan no
longer meets the selection criterion, it will transition to
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-cache-entry-inactive" target="_self">
<span>
Inactive
</span>
</a>
state.
</p>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<p class="leafygreen-ui-1kp3ins">
See
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-query-plans-plan-cache-flushes" target="_self">
<span>
Plan Cache Flushes
</span>
</a>
for additional scenarios that trigger
changes to the plan cache.
</p>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Query Plan and Cache Information
<a class="headerlink leafygreen-ui-1kepx47" href="#query-plan-and-cache-information" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="query-plan-and-cache-information">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
To view the query plan information for a given query, you can use
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.explain/#mongodb-method-db.collection.explain">
<code class="leafygreen-ui-1l06pbn">
db.collection.explain()
</code>
</a>
or the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/cursor.explain/#mongodb-method-cursor.explain">
<code class="leafygreen-ui-1l06pbn">
cursor.explain()
</code>
</a>
.
</p>
<p class="leafygreen-ui-1kp3ins">
To view plan cache information for a collection, you can use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/planCacheStats/#mongodb-pipeline-pipe.-planCacheStats">
<code class="leafygreen-ui-1l06pbn">
$planCacheStats
</code>
</a>
aggregation stage.
</p>
<span class="leafygreen-ui-1qnjd6d" id="std-label-query-plans-query-revision">
</span>
<span class="leafygreen-ui-1qnjd6d" id="std-label-query-plans-plan-cache-flushes">
</span>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Plan Cache Flushes
<a class="headerlink leafygreen-ui-1kepx47" href="#plan-cache-flushes" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="plan-cache-flushes">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The query plan cache does not persist if a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
restarts or shuts down. In addition:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Catalog operations like index or collection drops clear the plan
cache.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Least recently used (LRU) cache replacement mechanism clears the
least recently accessed cache entry, regardless of state.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
Users can also:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Manually clear the entire plan cache using the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/PlanCache.clear/#mongodb-method-PlanCache.clear">
<code class="leafygreen-ui-1l06pbn">
PlanCache.clear()
</code>
</a>
method.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Manually clear specific plan cache entries using the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/PlanCache.clearPlansByQuery/#mongodb-method-PlanCache.clearPlansByQuery">
<code class="leafygreen-ui-1l06pbn">
PlanCache.clearPlansByQuery()
</code>
</a>
method.
</p>
</li>
</ul>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-query-hash-plan-cache-key" target="_self">
<span>
planCacheShapeHash and planCacheKey
</span>
</a>
</p>
</div>
</div>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Plan Cache Debug Info Size Limit
<a class="headerlink leafygreen-ui-1kepx47" href="#plan-cache-debug-info-size-limit" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="plan-cache-debug-info-size-limit">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 5.0, the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-query-plans-query-optimization" target="_self">
<span>
plan cache
</span>
</a>
will save full
<code class="leafygreen-ui-1l06pbn">
plan cache
</code>
entries only if the cumulative size of the
<code class="leafygreen-ui-1l06pbn">
plan caches
</code>
for all collections is lower than 0.5 GB. When the
cumulative size of the
<code class="leafygreen-ui-1l06pbn">
plan caches
</code>
for all collections exceeds this
threshold, additional
<code class="leafygreen-ui-1l06pbn">
plan cache
</code>
entries are stored without the
following debug information:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/planCacheStats/#std-label-plancachestats-createdFromQuery">
createdFromQuery
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/planCacheStats/#std-label-plancachestats-cachedPlan">
cachedPlan
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/planCacheStats/#std-label-plancachestats-creationExecStats">
creationExecStats
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/planCacheStats/#std-label-plancachestats-candidatePlanScores">
candidatePlanScores
</a>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
The estimated size in bytes of a
<code class="leafygreen-ui-1l06pbn">
plan cache
</code>
entry is available in
the output of
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/planCacheStats/#mongodb-pipeline-pipe.-planCacheStats">
<code class="leafygreen-ui-1l06pbn">
$planCacheStats
</code>
.
</a>
</p>
<span class="leafygreen-ui-1qnjd6d" id="std-label-query-hash-plan-cache-key">
</span>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
planCacheShapeHash and planCacheKey
<a class="headerlink leafygreen-ui-1kepx47" href="#plancacheshapehash-and-plancachekey" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="plancacheshapehash-and-plancachekey">
</div>
</a>
</h3>
<span class="leafygreen-ui-1qnjd6d" id="std-label-query-hash">
</span>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
planCacheShapeHash
<a class="headerlink leafygreen-ui-1kepx47" href="#plancacheshapehash" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="plancacheshapehash">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
To help identify slow queries with the same
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-plan-cache-query-shape">
plan cache query shape
</a>
, each plan cache query shape is associated with a query hash.
The plan cache query shape hash is a hexadecimal string that
represents a hash of the query shape and is dependent only on the
query shape.
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
As with any hash function, two different query shapes may result
in the same hash value. However, the occurrence of hash
collisions between different query shapes is unlikely.
</p>
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 8.0, the pre-existing
<code class="leafygreen-ui-1l06pbn">
queryHash
</code>
field is renamed
to
<code class="leafygreen-ui-1l06pbn">
planCacheShapeHash
</code>
. If you're using an earlier MongoDB version,
you'll see
<code class="leafygreen-ui-1l06pbn">
queryHash
</code>
instead of
<code class="leafygreen-ui-1l06pbn">
planCacheShapeHash
</code>
.
</p>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-plan-cache-key">
</span>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
planCacheKey
<a class="headerlink leafygreen-ui-1kepx47" href="#plancachekey" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="plancachekey">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
To provide more insight into the
<a aria-current="page" class="leafygreen-ui-tqgtui" href="/docs/manual/core/query-plans/">
query plan cache
</a>
, MongoDB offers the
<code class="leafygreen-ui-1l06pbn">
planCacheKey
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
planCacheKey
</code>
is a hash of the key for the plan cache entry
associated with the query.
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Unlike
<code class="leafygreen-ui-1l06pbn">
planCacheShapeHash
</code>
,
<code class="leafygreen-ui-1l06pbn">
planCacheKey
</code>
is a function of
both the query shape and the currently available indexes for the
shape. That is, if indexes that can support the query shape are
added/dropped, the
<code class="leafygreen-ui-1l06pbn">
planCacheKey
</code>
value may change whereas the
<code class="leafygreen-ui-1l06pbn">
planCacheShapeHash
</code>
value would not change.
</p>
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 8.0, the pre-existing
<code class="leafygreen-ui-1l06pbn">
queryHash
</code>
field is renamed
to
<code class="leafygreen-ui-1l06pbn">
planCacheShapeHash
</code>
. If you're using an earlier MongoDB version,
you'll see
<code class="leafygreen-ui-1l06pbn">
queryHash
</code>
instead of
<code class="leafygreen-ui-1l06pbn">
planCacheShapeHash
</code>
.
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
For example, consider a collection
<code class="leafygreen-ui-1l06pbn">
foo
</code>
with the following indexes:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.foo.createIndex( { x: 1 } )\ndb.foo.createIndex( { x: 1, y: 1 } )\ndb.foo.createIndex( { x: 1, z: 1 }, { partialFilterExpression: { x: { $gt: 10 } } } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">foo</span>.<span class="lg-highlight-title lg-highlight-function">createIndex</span>( <!-- -->{ <span class="lg-highlight-attr">x</span>: <span class="lg-highlight-number">1</span> } )</td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">foo</span>.<span class="lg-highlight-title lg-highlight-function">createIndex</span>( <!-- -->{ <span class="lg-highlight-attr">x</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-attr">y</span>: <span class="lg-highlight-number">1</span> } )</td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">foo</span>.<span class="lg-highlight-title lg-highlight-function">createIndex</span>( <!-- -->{ <span class="lg-highlight-attr">x</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-attr">z</span>: <span class="lg-highlight-number">1</span> }<!-- -->, <!-- -->{ <span class="lg-highlight-attr">partialFilterExpression</span>: <!-- -->{ <span class="lg-highlight-attr">x</span>: <!-- -->{ <span class="lg-highlight-attr">$gt</span>: <span class="lg-highlight-number">10</span> } } } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The following queries on the collection have the same shape:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.foo.explain().find( { x: { $gt: 5 } } ) // Query Operation 1\ndb.foo.explain().find( { x: { $gt: 20 } } ) // Query Operation 2","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">foo</span>.<span class="lg-highlight-title lg-highlight-function">explain</span>(<!-- -->).<span class="lg-highlight-title lg-highlight-function">find</span>( <!-- -->{ <span class="lg-highlight-attr">x</span>: <!-- -->{ <span class="lg-highlight-attr">$gt</span>: <span class="lg-highlight-number">5</span> } } ) <span class="lg-highlight-comment">// Query Operation 1</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">foo</span>.<span class="lg-highlight-title lg-highlight-function">explain</span>(<!-- -->).<span class="lg-highlight-title lg-highlight-function">find</span>( <!-- -->{ <span class="lg-highlight-attr">x</span>: <!-- -->{ <span class="lg-highlight-attr">$gt</span>: <span class="lg-highlight-number">20</span> } } ) <span class="lg-highlight-comment">// Query Operation 2</span></td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Given these queries, the index with the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/index-partial/#std-label-partial-index-query-coverage">
partial filter expression
</a>
can support query operation 2 but
<em>
not
</em>
support query operation 1. Since the indexes available to support query operation 1
differs from query operation 2, the two queries have different
<code class="leafygreen-ui-1l06pbn">
planCacheKey
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
If one of the indexes were dropped, or if a new index
<code class="leafygreen-ui-1l06pbn">
{ x: 1, a: 1
}
</code>
were added, the
<code class="leafygreen-ui-1l06pbn">
planCacheKey
</code>
for both query operations will
change.
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Availability
<a class="headerlink leafygreen-ui-1kepx47" href="#availability" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="availability">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
planCacheShapeHash
</code>
and
<code class="leafygreen-ui-1l06pbn">
planCacheKey
</code>
are available in:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/explain-results/#std-label-explain-results">
explain() output
</a>
fields:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/explain-results/#mongodb-data-explain.queryPlanner.planCacheShapeHash">
<code class="leafygreen-ui-1l06pbn">
queryPlanner.planCacheShapeHash
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/explain-results/#mongodb-data-explain.queryPlanner.planCacheKey">
<code class="leafygreen-ui-1l06pbn">
queryPlanner.planCacheKey
</code>
</a>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 8.0, the pre-existing
<code class="leafygreen-ui-1l06pbn">
queryHash
</code>
field is renamed
to
<code class="leafygreen-ui-1l06pbn">
planCacheShapeHash
</code>
. If you're using an earlier MongoDB version,
you'll see
<code class="leafygreen-ui-1l06pbn">
queryHash
</code>
instead of
<code class="leafygreen-ui-1l06pbn">
planCacheShapeHash
</code>
.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/manage-the-database-profiler/#std-label-database-profiler">
profiler log messages
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/log-messages/#std-label-log-messages-ref">
diagnostic log messages (i.e. mongod/mongos log
messages)
</a>
when logging slow queries.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/planCacheStats/#mongodb-pipeline-pipe.-planCacheStats">
<code class="leafygreen-ui-1l06pbn">
$planCacheStats
</code>
</a>
aggregation stage
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
PlanCache.listQueryShapes()
</code>
method/
<code class="leafygreen-ui-1l06pbn">
planCacheListQueryShapes
</code>
command
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
PlanCache.getPlansByQuery()
</code>
method/
<code class="leafygreen-ui-1l06pbn">
planCacheListPlans
</code>
command
</p>
</li>
</ul>
<span class="leafygreen-ui-1qnjd6d" id="std-label-index-filters">
</span>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Index Filters
<a class="headerlink leafygreen-ui-1kepx47" href="#index-filters" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="index-filters">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Index filters are set with the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/planCacheSetFilter/#mongodb-dbcommand-dbcmd.planCacheSetFilter">
<code class="leafygreen-ui-1l06pbn">
planCacheSetFilter
</code>
</a>
command
and determine which indexes the planner evaluates for a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-query-shape">
query shape
</a>
. A plan cache query shape consists of a combination of query, sort, and
projection specifications. If an index filter exists for a given query
shape, the planner only considers those indexes specified in the
filter.
</p>
<p class="leafygreen-ui-1kp3ins">
When an index filter exists for the plan cache query shape, MongoDB ignores the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/cursor.hint/#mongodb-method-cursor.hint">
<code class="leafygreen-ui-1l06pbn">
hint()
</code>
</a>
. To see whether MongoDB applied an index
filter for a query shape, check the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/explain-results/#mongodb-data-explain.queryPlanner.indexFilterSet">
<code class="leafygreen-ui-1l06pbn">
indexFilterSet
</code>
</a>
field of either the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.explain/#mongodb-method-db.collection.explain">
<code class="leafygreen-ui-1l06pbn">
db.collection.explain()
</code>
</a>
or the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/cursor.explain/#mongodb-method-cursor.explain">
<code class="leafygreen-ui-1l06pbn">
cursor.explain()
</code>
</a>
method.
</p>
<p class="leafygreen-ui-1kp3ins">
Index filters only affect which indexes the planner evaluates; the
planner may still select the collection scan as the winning plan for
a given plan cache query shape.
</p>
<p class="leafygreen-ui-1kp3ins">
Index filters exist for the duration of the server process and do not
persist after shutdown. MongoDB also provides a command to manually remove
filters.
</p>
<p class="leafygreen-ui-1kp3ins">
Because index filters override the expected behavior of the planner
as well as the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/cursor.hint/#mongodb-method-cursor.hint">
<code class="leafygreen-ui-1l06pbn">
hint()
</code>
</a>
method, use index filters
sparingly.
</p>
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 6.0, an index filter uses the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/collation/#std-label-collation">
collation
</a>
previously set using the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/planCacheSetFilter/#mongodb-dbcommand-dbcmd.planCacheSetFilter">
<code class="leafygreen-ui-1l06pbn">
planCacheSetFilter
</code>
</a>
command.
</p>
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 8.0, use query settings instead of adding
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-index-filters" target="_self">
<span>
index filters
</span>
</a>
. Index filters are deprecated
starting in MongoDB 8.0.
</p>
<p class="leafygreen-ui-1kp3ins">
Query settings have more functionality than index filters. Also, index
filters aren't persistent and you cannot easily create index filters for
all cluster nodes. To add query settings and explore examples, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/setQuerySettings/#mongodb-dbcommand-dbcmd.setQuerySettings">
<code class="leafygreen-ui-1l06pbn">
setQuerySettings
</code>
.
</a>
</p>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/planCacheListFilters/#mongodb-dbcommand-dbcmd.planCacheListFilters">
<code class="leafygreen-ui-1l06pbn">
planCacheListFilters
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/planCacheClearFilters/#mongodb-dbcommand-dbcmd.planCacheClearFilters">
<code class="leafygreen-ui-1l06pbn">
planCacheClearFilters
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/planCacheSetFilter/#mongodb-dbcommand-dbcmd.planCacheSetFilter">
<code class="leafygreen-ui-1l06pbn">
planCacheSetFilter
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/applications/indexes/">
Indexing Strategies
</a>
</p>
</li>
</ul>
</div>
</div>
</section>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/privilege-actions/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Privilege Actions for Self-Managed Deployments
<a class="headerlink leafygreen-ui-1kepx47" href="#privilege-actions-for-self-managed-deployments" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="privilege-actions-for-self-managed-deployments">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#query-and-write-actions" target="_self">
<span>
Query and Write Actions
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#database-management-actions" target="_self">
<span>
Database Management Actions
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#deployment-management-actions" target="_self">
<span>
Deployment Management Actions
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#change-stream-actions" target="_self">
<span>
Change Stream Actions
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#replication-actions" target="_self">
<span>
Replication Actions
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#sharding-actions" target="_self">
<span>
Sharding Actions
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#server-administration-actions" target="_self">
<span>
Server Administration Actions
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#session-actions" target="_self">
<span>
Session Actions
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#atlas-search-index-actions" target="_self">
<span>
Atlas Search Index Actions
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#diagnostic-actions" target="_self">
<span>
Diagnostic Actions
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#internal-actions" target="_self">
<span>
Internal Actions
</span>
</a>
</li>
</ul>
</div>
<p class="leafygreen-ui-1kp3ins">
Privilege actions define the operations a user can perform on a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/resource-document/#std-label-resource-document">
resource
</a>
. A MongoDB
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/authorization/#std-label-privileges">
privilege
</a>
comprises a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/resource-document/#std-label-resource-document">
resource
</a>
and the permitted actions. This page lists
available actions grouped by common purpose.
</p>
<p class="leafygreen-ui-1kp3ins">
MongoDB provides built-in roles with pre-defined pairings of resources and
permitted actions. For lists of the actions granted, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/built-in-roles/#std-label-built-in-roles">
Built-In Roles in Self-Managed Deployments
</a>
. To define custom roles, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/manage-users-and-roles/#std-label-create-user-defined-role">
Create a User-Defined Role
<!-- -->
.
</a>
</p>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Query and Write Actions
<a class="headerlink leafygreen-ui-1kepx47" href="#query-and-write-actions" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="query-and-write-actions">
</div>
</a>
</h2>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
find
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-find" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-find">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the following commands, and their equivalent helper methods:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/aggregate/#mongodb-dbcommand-dbcmd.aggregate">
<code class="leafygreen-ui-1l06pbn">
aggregate
</code>
</a>
for all
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation-pipeline/#std-label-aggregation-pipeline-operator-reference">
pipeline operations
</a>
<strong>
except
</strong>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/collStats/#mongodb-pipeline-pipe.-collStats">
<code class="leafygreen-ui-1l06pbn">
$collStats
</code>
</a>
,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/out/#mongodb-pipeline-pipe.-out">
<code class="leafygreen-ui-1l06pbn">
$out
</code>
</a>
, and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/indexStats/#mongodb-pipeline-pipe.-indexStats">
<code class="leafygreen-ui-1l06pbn">
$indexStats
</code>
.
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/count/#mongodb-dbcommand-dbcmd.count">
<code class="leafygreen-ui-1l06pbn">
count
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/dataSize/#mongodb-dbcommand-dbcmd.dataSize">
<code class="leafygreen-ui-1l06pbn">
dataSize
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/distinct/#mongodb-dbcommand-dbcmd.distinct">
<code class="leafygreen-ui-1l06pbn">
distinct
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/filemd5/#mongodb-dbcommand-dbcmd.filemd5">
<code class="leafygreen-ui-1l06pbn">
filemd5
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/find/#mongodb-dbcommand-dbcmd.find">
<code class="leafygreen-ui-1l06pbn">
find
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/geoSearch/#mongodb-dbcommand-dbcmd.geoSearch">
<code class="leafygreen-ui-1l06pbn">
geoSearch
</code>
</a>
(
<em>
Removed in MongoDB 5.0
</em>
)
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/getLastError/#mongodb-dbcommand-dbcmd.getLastError">
<code class="leafygreen-ui-1l06pbn">
getLastError
</code>
</a>
(
<em>
Removed in MongoDB 5.1
</em>
)
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/getMore/#mongodb-dbcommand-dbcmd.getMore">
<code class="leafygreen-ui-1l06pbn">
getMore
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/killCursors/#mongodb-dbcommand-dbcmd.killCursors">
<code class="leafygreen-ui-1l06pbn">
killCursors
</code>
</a>
, provided that the cursor is associated
with a currently authenticated user.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/listCollections/#mongodb-dbcommand-dbcmd.listCollections">
<code class="leafygreen-ui-1l06pbn">
listCollections
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/listIndexes/#mongodb-dbcommand-dbcmd.listIndexes">
<code class="leafygreen-ui-1l06pbn">
listIndexes
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/mapReduce/#mongodb-dbcommand-dbcmd.mapReduce">
<code class="leafygreen-ui-1l06pbn">
mapReduce
</code>
</a>
with the
<code class="leafygreen-ui-1l06pbn">
{out: inline}
</code>
option.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/resetError/#mongodb-dbcommand-dbcmd.resetError">
<code class="leafygreen-ui-1l06pbn">
resetError
</code>
</a>
(
<em>
Removed in MongoDB 5.0
</em>
)
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
Required for the query portion of the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/mapReduce/#mongodb-dbcommand-dbcmd.mapReduce">
<code class="leafygreen-ui-1l06pbn">
mapReduce
</code>
</a>
command and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.mapReduce/#mongodb-method-db.collection.mapReduce">
<code class="leafygreen-ui-1l06pbn">
db.collection.mapReduce()
</code>
</a>
helper method when
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.mapReduce/#std-label-mapreduce-out-mtd">
outputting
to a collection
<!-- -->
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
Required for the query portion of the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/findAndModify/#mongodb-dbcommand-dbcmd.findAndModify">
<code class="leafygreen-ui-1l06pbn">
findAndModify
</code>
</a>
command
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.findAndModify/#mongodb-method-db.collection.findAndModify">
<code class="leafygreen-ui-1l06pbn">
db.collection.findAndModify()
</code>
</a>
helper method.
</p>
<p class="leafygreen-ui-1kp3ins">
Required on the
<em>
source
</em>
collection for the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/cloneCollectionAsCapped/#mongodb-dbcommand-dbcmd.cloneCollectionAsCapped">
<code class="leafygreen-ui-1l06pbn">
cloneCollectionAsCapped
</code>
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/renameCollection/#mongodb-dbcommand-dbcmd.renameCollection">
<code class="leafygreen-ui-1l06pbn">
renameCollection
</code>
</a>
commands and the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.renameCollection/#mongodb-method-db.collection.renameCollection">
<code class="leafygreen-ui-1l06pbn">
db.collection.renameCollection()
</code>
</a>
helper method.
</p>
<p class="leafygreen-ui-1kp3ins">
If the user does not have the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-authaction-listDatabases" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
listDatabases
</code>
</span>
</a>
privilege action, users can run the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/listDatabases/#mongodb-dbcommand-dbcmd.listDatabases">
<code class="leafygreen-ui-1l06pbn">
listDatabases
</code>
</a>
command to return a list of databases for which the user has
privileges (including databases for which the user has privileges
on specific collections) if the command is run with
<code class="leafygreen-ui-1l06pbn">
authorizedDatabases
</code>
option unspecified or set to
<code class="leafygreen-ui-1l06pbn">
true
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
Apply this action to database or collection resources.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
insert
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-insert" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-insert">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the following commands and their equivalent methods:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/insert/#mongodb-dbcommand-dbcmd.insert">
<code class="leafygreen-ui-1l06pbn">
insert
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/create/#mongodb-dbcommand-dbcmd.create">
<code class="leafygreen-ui-1l06pbn">
create
</code>
</a>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
Required for the output portion of the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/mapReduce/#mongodb-dbcommand-dbcmd.mapReduce">
<code class="leafygreen-ui-1l06pbn">
mapReduce
</code>
</a>
command and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.mapReduce/#mongodb-method-db.collection.mapReduce">
<code class="leafygreen-ui-1l06pbn">
db.collection.mapReduce()
</code>
</a>
helper method when
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.mapReduce/#std-label-mapreduce-out-mtd">
outputting to a collection
<!-- -->
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
Required for the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/aggregate/#mongodb-dbcommand-dbcmd.aggregate">
<code class="leafygreen-ui-1l06pbn">
aggregate
</code>
</a>
command and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.aggregate/#mongodb-method-db.collection.aggregate">
<code class="leafygreen-ui-1l06pbn">
db.collection.aggregate()
</code>
</a>
helper method when using the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/out/#mongodb-pipeline-pipe.-out">
<code class="leafygreen-ui-1l06pbn">
$out
</code>
</a>
or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/merge/#mongodb-pipeline-pipe.-merge">
<code class="leafygreen-ui-1l06pbn">
$merge
</code>
</a>
pipeline operator.
</p>
<p class="leafygreen-ui-1kp3ins">
Required for the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/update/#mongodb-dbcommand-dbcmd.update">
<code class="leafygreen-ui-1l06pbn">
update
</code>
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/findAndModify/#mongodb-dbcommand-dbcmd.findAndModify">
<code class="leafygreen-ui-1l06pbn">
findAndModify
</code>
</a>
commands and equivalent helper methods when used with the
<code class="leafygreen-ui-1l06pbn">
upsert
</code>
option.
</p>
<p class="leafygreen-ui-1kp3ins">
Required on the
<em>
destination
</em>
collection for the following
commands and their helper methods:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/cloneCollectionAsCapped/#mongodb-dbcommand-dbcmd.cloneCollectionAsCapped">
<code class="leafygreen-ui-1l06pbn">
cloneCollectionAsCapped
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/renameCollection/#mongodb-dbcommand-dbcmd.renameCollection">
<code class="leafygreen-ui-1l06pbn">
renameCollection
</code>
</a>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
Apply this action to database or collection resources.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
remove
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-remove" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-remove">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/delete/#mongodb-dbcommand-dbcmd.delete">
<code class="leafygreen-ui-1l06pbn">
delete
</code>
</a>
command and equivalent
helper method.
</p>
<p class="leafygreen-ui-1kp3ins">
Required for the write portion of the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/findAndModify/#mongodb-dbcommand-dbcmd.findAndModify">
<code class="leafygreen-ui-1l06pbn">
findAndModify
</code>
</a>
command and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.findAndModify/#mongodb-method-db.collection.findAndModify">
<code class="leafygreen-ui-1l06pbn">
db.collection.findAndModify()
</code>
</a>
method.
</p>
<p class="leafygreen-ui-1kp3ins">
Required for the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/mapReduce/#mongodb-dbcommand-dbcmd.mapReduce">
<code class="leafygreen-ui-1l06pbn">
mapReduce
</code>
</a>
command and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.mapReduce/#mongodb-method-db.collection.mapReduce">
<code class="leafygreen-ui-1l06pbn">
db.collection.mapReduce()
</code>
</a>
helper method when you specify
the
<code class="leafygreen-ui-1l06pbn">
replace
</code>
action when
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.mapReduce/#std-label-mapreduce-out-mtd">
outputting to a collection
<!-- -->
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
Required for the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/aggregate/#mongodb-dbcommand-dbcmd.aggregate">
<code class="leafygreen-ui-1l06pbn">
aggregate
</code>
</a>
command and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.aggregate/#mongodb-method-db.collection.aggregate">
<code class="leafygreen-ui-1l06pbn">
db.collection.aggregate()
</code>
</a>
helper method when using the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/out/#mongodb-pipeline-pipe.-out">
<code class="leafygreen-ui-1l06pbn">
$out
</code>
</a>
pipeline operator.
</p>
<p class="leafygreen-ui-1kp3ins">
Apply this action to database or collection resources.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
update
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-update" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-update">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/update/#mongodb-dbcommand-dbcmd.update">
<code class="leafygreen-ui-1l06pbn">
update
</code>
</a>
command and equivalent
helper methods.
</p>
<p class="leafygreen-ui-1kp3ins">
Required for the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/mapReduce/#mongodb-dbcommand-dbcmd.mapReduce">
<code class="leafygreen-ui-1l06pbn">
mapReduce
</code>
</a>
command and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.mapReduce/#mongodb-method-db.collection.mapReduce">
<code class="leafygreen-ui-1l06pbn">
db.collection.mapReduce()
</code>
</a>
helper method when
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.mapReduce/#std-label-mapreduce-out-mtd">
outputting to a collection
</a>
without specifying the
<code class="leafygreen-ui-1l06pbn">
replace
</code>
action.
</p>
<p class="leafygreen-ui-1kp3ins">
Required for the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/findAndModify/#mongodb-dbcommand-dbcmd.findAndModify">
<code class="leafygreen-ui-1l06pbn">
findAndModify
</code>
</a>
command and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.findAndModify/#mongodb-method-db.collection.findAndModify">
<code class="leafygreen-ui-1l06pbn">
db.collection.findAndModify()
</code>
</a>
helper method.
</p>
<p class="leafygreen-ui-1kp3ins">
Apply this action to database or collection resources.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
bypassDocumentValidation
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-bypassDocumentValidation" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-bypassDocumentValidation">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Users can bypass
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/schema-validation/#std-label-schema-validation-overview">
document validation
</a>
on commands and methods that support
the
<code class="leafygreen-ui-1l06pbn">
bypassDocumentValidation
</code>
option. The following commands and
their equivalent methods support bypassing document validation:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/aggregate/#mongodb-dbcommand-dbcmd.aggregate">
<code class="leafygreen-ui-1l06pbn">
aggregate
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/applyOps/#mongodb-dbcommand-dbcmd.applyOps">
<code class="leafygreen-ui-1l06pbn">
applyOps
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/findAndModify/#mongodb-dbcommand-dbcmd.findAndModify">
<code class="leafygreen-ui-1l06pbn">
findAndModify
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/insert/#mongodb-dbcommand-dbcmd.insert">
<code class="leafygreen-ui-1l06pbn">
insert
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/mapReduce/#mongodb-dbcommand-dbcmd.mapReduce">
<code class="leafygreen-ui-1l06pbn">
mapReduce
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/update/#mongodb-dbcommand-dbcmd.update">
<code class="leafygreen-ui-1l06pbn">
update
</code>
</a>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
Apply this action to database or collection resources.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
useUUID
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-useUUID" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-useUUID">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can execute the following commands using a
<span class="leafygreen-ui-vm4wms" tabindex="0">
UUID
</span>
as if it were a
namespace:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/find/#mongodb-dbcommand-dbcmd.find">
<code class="leafygreen-ui-1l06pbn">
find
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/listIndexes/#mongodb-dbcommand-dbcmd.listIndexes">
<code class="leafygreen-ui-1l06pbn">
listIndexes
</code>
</a>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
For example, this privilege authorizes a user to run the
following command which executes a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/find/#mongodb-dbcommand-dbcmd.find">
<code class="leafygreen-ui-1l06pbn">
find
</code>
</a>
command on a
collection with the given UUID. In order to be successful, this
operation also requires that the user is authorized to execute the
<code class="leafygreen-ui-1l06pbn">
find
</code>
command on the collection namespace corresponding to the given
UUID.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.runCommand({find: UUID(\"123e4567-e89b-12d3-a456-426655440000\")})","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">runCommand</span>(<!-- -->{<span class="lg-highlight-attr">find</span>: <span class="lg-highlight-title lg-highlight-function">UUID</span>(<span class="lg-highlight-string">"123e4567-e89b-12d3-a456-426655440000"</span>)})</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
For more information on collection UUIDs, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/databases-and-collections/#std-label-collections">
Collections
<!-- -->
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
Apply this action to the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
</dd>
</dl>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Database Management Actions
<a class="headerlink leafygreen-ui-1kepx47" href="#database-management-actions" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="database-management-actions">
</div>
</a>
</h2>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
changeCustomData
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-changeCustomData" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-changeCustomData">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can change the custom information of any user in the given
database. Apply this action to database resources.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
changeOwnCustomData
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-changeOwnCustomData" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-changeOwnCustomData">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Users can change their own custom information. Apply this action to
database resources. See also
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/change-own-password-and-custom-data/#std-label-change-password-custom-data">
Change Your Password and Custom Data on Self-Managed Deployments
<!-- -->
.
</a>
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
changeOwnPassword
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-changeOwnPassword" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-changeOwnPassword">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Users can change their own passwords. Apply this action to database
resources. See also
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/change-own-password-and-custom-data/#std-label-change-password-custom-data">
Change Your Password and Custom Data on Self-Managed Deployments
<!-- -->
.
</a>
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
changePassword
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-changePassword" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-changePassword">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can change the password of any user in the given database. Apply
this action to database resources.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
createCollection
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-createCollection" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-createCollection">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.createCollection/#mongodb-method-db.createCollection">
<code class="leafygreen-ui-1l06pbn">
db.createCollection()
</code>
</a>
method. Apply this
action to database or collection resources.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
createIndex
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-createIndex" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-createIndex">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Provides access to the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.createIndex/#mongodb-method-db.collection.createIndex">
<code class="leafygreen-ui-1l06pbn">
db.collection.createIndex()
</code>
</a>
method
and the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/createIndexes/#mongodb-dbcommand-dbcmd.createIndexes">
<code class="leafygreen-ui-1l06pbn">
createIndexes
</code>
</a>
command.
Apply this action to database or collection resources.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
createRole
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-createRole" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-createRole">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can create new roles in the given database. Apply this action to
database resources.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
createUser
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-createUser" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-createUser">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can create new users in the given database. Apply this action to
database resources.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
dropCollection
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-dropCollection" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-dropCollection">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.drop/#mongodb-method-db.collection.drop">
<code class="leafygreen-ui-1l06pbn">
db.collection.drop()
</code>
</a>
method. Apply this
action to database or collection resources.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
dropRole
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-dropRole" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-dropRole">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can delete any role from the given database. Apply this action to
database resources.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
dropUser
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-dropUser" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-dropUser">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can remove any user from the given database. Apply this action to
database resources.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
enableProfiler
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-enableProfiler" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-enableProfiler">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.setProfilingLevel/#mongodb-method-db.setProfilingLevel">
<code class="leafygreen-ui-1l06pbn">
db.setProfilingLevel()
</code>
</a>
method. Apply
this action to database resources.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
grantRole
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-grantRole" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-grantRole">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can grant any role in the database to any user from any database
in the system. Apply this action to database resources.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
killCursors
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-killCursors" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-killCursors">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Users can always terminate their own cursors, regardless of whether the users
have the privilege to
<code class="leafygreen-ui-1l06pbn">
killCursors
</code>
.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
killAnyCursor
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-killAnyCursor" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-killAnyCursor">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can kill
<strong>
any
</strong>
cursor, even cursors created by other users.
Apply this action to collection resources.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
planCacheIndexFilter
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-planCacheIndexFilter" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-planCacheIndexFilter">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can run the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/planCacheClearFilters/#mongodb-dbcommand-dbcmd.planCacheClearFilters">
<code class="leafygreen-ui-1l06pbn">
planCacheClearFilters
</code>
</a>
,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/planCacheListFilters/#mongodb-dbcommand-dbcmd.planCacheListFilters">
<code class="leafygreen-ui-1l06pbn">
planCacheListFilters
</code>
</a>
, and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/planCacheSetFilter/#mongodb-dbcommand-dbcmd.planCacheSetFilter">
<code class="leafygreen-ui-1l06pbn">
planCacheSetFilter
</code>
</a>
commands. Apply the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-authaction-planCacheIndexFilter" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
planCacheIndexFilter
</code>
</span>
</a>
action to collection resources.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
querySettings
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-querySettings" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-querySettings">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can run the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/setQuerySettings/#mongodb-dbcommand-dbcmd.setQuerySettings">
<code class="leafygreen-ui-1l06pbn">
setQuerySettings
</code>
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/removeQuerySettings/#mongodb-dbcommand-dbcmd.removeQuerySettings">
<code class="leafygreen-ui-1l06pbn">
removeQuerySettings
</code>
</a>
commands, and add a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/querySettings/#mongodb-pipeline-pipe.-querySettings">
<code class="leafygreen-ui-1l06pbn">
$querySettings
</code>
</a>
stage to an aggregation pipeline.
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
8.0
</em>
.
</p>
</div>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
revokeRole
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-revokeRole" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-revokeRole">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can remove any role from any user from any database in the system.
Apply this action to database resources.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
setAuthenticationRestriction
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-setAuthenticationRestriction" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-setAuthenticationRestriction">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can specify the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/createUser/#std-label-create-user-auth-restrictions">
authenticationRestrictions
</a>
field in the
<code class="leafygreen-ui-1l06pbn">
user
</code>
document when running the following commands:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/createUser/#mongodb-dbcommand-dbcmd.createUser">
<code class="leafygreen-ui-1l06pbn">
createUser
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/updateUser/#mongodb-dbcommand-dbcmd.updateUser">
<code class="leafygreen-ui-1l06pbn">
updateUser
</code>
</a>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
User can specify the
<code class="leafygreen-ui-1l06pbn">
authenticationRestrictions
</code>
field in the
<code class="leafygreen-ui-1l06pbn">
role
</code>
document when running the following commands:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/createRole/#mongodb-dbcommand-dbcmd.createRole">
<code class="leafygreen-ui-1l06pbn">
createRole
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/updateRole/#mongodb-dbcommand-dbcmd.updateRole">
<code class="leafygreen-ui-1l06pbn">
updateRole
</code>
</a>
</p>
</li>
</ul>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
The following built-in roles grant this privilege:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/built-in-roles/#mongodb-authrole-userAdmin">
<code class="leafygreen-ui-1l06pbn">
userAdmin
</code>
</a>
role provides this privilege
on the database that the role is assigned.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/built-in-roles/#mongodb-authrole-userAdminAnyDatabase">
<code class="leafygreen-ui-1l06pbn">
userAdminAnyDatabase
</code>
</a>
role provides this
privilege on all databases.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
Transitively, the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/built-in-roles/#mongodb-authrole-restore">
<code class="leafygreen-ui-1l06pbn">
restore
</code>
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/built-in-roles/#mongodb-authrole-root">
<code class="leafygreen-ui-1l06pbn">
root
</code>
</a>
roles
also provide this privilege.
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Apply this action to database resources.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
setFeatureCompatibilityVersion
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-setFeatureCompatibilityVersion" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-setFeatureCompatibilityVersion">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can run the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/setFeatureCompatibilityVersion/#mongodb-dbcommand-dbcmd.setFeatureCompatibilityVersion">
<code class="leafygreen-ui-1l06pbn">
setFeatureCompatibilityVersion
</code>
</a>
command.
Apply this action to the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
unlock
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-unlock" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-unlock">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.fsyncUnlock/#mongodb-method-db.fsyncUnlock">
<code class="leafygreen-ui-1l06pbn">
db.fsyncUnlock()
</code>
</a>
method. Apply this
action to the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
viewRole
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-viewRole" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-viewRole">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can view information about any role in the given database. Apply
this action to database resources.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
viewUser
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-viewUser" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-viewUser">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can view the information of any user in the given database. Apply
this action to database resources.
</p>
</dd>
</dl>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Deployment Management Actions
<a class="headerlink leafygreen-ui-1kepx47" href="#deployment-management-actions" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="deployment-management-actions">
</div>
</a>
</h2>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
authSchemaUpgrade
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-authSchemaUpgrade" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-authSchemaUpgrade">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<code class="leafygreen-ui-1l06pbn">
authSchemaUpgrade
</code>
command. Apply this
action to the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
cleanupOrphaned
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-cleanupOrphaned" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-cleanupOrphaned">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<code class="leafygreen-ui-1l06pbn">
cleanupOrphaned
</code>
command. Apply this
action to the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
cpuProfiler
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-cpuProfiler" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-cpuProfiler">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can enable and use the CPU profiler. Apply this action to the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
inprog
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-inprog" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-inprog">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.currentOp/#mongodb-method-db.currentOp">
<code class="leafygreen-ui-1l06pbn">
db.currentOp()
</code>
</a>
method to return
information on pending and active operations. Apply this action to
the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
<p class="leafygreen-ui-1kp3ins">
Even without the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-authaction-inprog" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
inprog
</code>
</span>
</a>
privilege, on
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
instances, users can view their own operations by running
<code class="leafygreen-ui-1l06pbn">
db.currentOp( { "$ownOps": true } )
</code>
.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
invalidateUserCache
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-invalidateUserCache" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-invalidateUserCache">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Provides access to the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/invalidateUserCache/#mongodb-dbcommand-dbcmd.invalidateUserCache">
<code class="leafygreen-ui-1l06pbn">
invalidateUserCache
</code>
</a>
command. Apply
this action to the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
killop
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-killop" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-killop">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.killOp/#mongodb-method-db.killOp">
<code class="leafygreen-ui-1l06pbn">
db.killOp()
</code>
</a>
method. Apply this action to
the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
<p class="leafygreen-ui-1kp3ins">
Even without the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-authaction-killop" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
killop
</code>
</span>
</a>
privilege, on
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
instances, users can kill their own operations.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
planCacheRead
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-planCacheRead" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-planCacheRead">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can run the following operations:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/planCacheStats/#mongodb-pipeline-pipe.-planCacheStats">
<code class="leafygreen-ui-1l06pbn">
$planCacheStats
</code>
</a>
aggregation stage.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
Apply this action to database or collection resources.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
planCacheWrite
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-planCacheWrite" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-planCacheWrite">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/planCacheClear/#mongodb-dbcommand-dbcmd.planCacheClear">
<code class="leafygreen-ui-1l06pbn">
planCacheClear
</code>
</a>
command and the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/PlanCache.clear/#mongodb-method-PlanCache.clear">
<code class="leafygreen-ui-1l06pbn">
PlanCache.clear()
</code>
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/PlanCache.clearPlansByQuery/#mongodb-method-PlanCache.clearPlansByQuery">
<code class="leafygreen-ui-1l06pbn">
PlanCache.clearPlansByQuery()
</code>
</a>
methods. Apply this action to database or collection resources.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
storageDetails
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-storageDetails" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-storageDetails">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
<em>
Deprecated in 7.0:
</em>
The
<code class="leafygreen-ui-1l06pbn">
storageDetails
</code>
action has been removed from the database.
</p>
</dd>
</dl>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Change Stream Actions
<a class="headerlink leafygreen-ui-1kepx47" href="#change-stream-actions" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="change-stream-actions">
</div>
</a>
</h2>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
changeStream
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-changeStream" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-changeStream">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User with
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-authaction-changeStream" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
changeStream
</code>
</span>
</a>
and
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-authaction-find" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
find
</code>
</span>
</a>
on the
specific collection, all non-
<code class="leafygreen-ui-1l06pbn">
system
</code>
collections in a
specific database, or all non-
<code class="leafygreen-ui-1l06pbn">
system
</code>
collections across all databases can
open
<a class="leafygreen-ui-tqgtui" href="/docs/manual/changeStreams/#std-label-changeStreams">
change stream cursor
</a>
for that resource.
</p>
</dd>
</dl>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Replication Actions
<a class="headerlink leafygreen-ui-1kepx47" href="#replication-actions" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="replication-actions">
</div>
</a>
</h2>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
appendOplogNote
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-appendOplogNote" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-appendOplogNote">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can append notes to the oplog. Apply this action to the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
replSetConfigure
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-replSetConfigure" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-replSetConfigure">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can configure a replica set. Apply this action to the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
replSetGetConfig
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-replSetGetConfig" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-replSetGetConfig">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can view a replica set's configuration. Provides access to the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/replSetGetConfig/#mongodb-dbcommand-dbcmd.replSetGetConfig">
<code class="leafygreen-ui-1l06pbn">
replSetGetConfig
</code>
</a>
command and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/rs.conf/#mongodb-method-rs.conf">
<code class="leafygreen-ui-1l06pbn">
rs.conf()
</code>
</a>
helper
method.
</p>
<p class="leafygreen-ui-1kp3ins">
Apply this action to the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
replSetGetStatus
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-replSetGetStatus" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-replSetGetStatus">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/replSetGetStatus/#mongodb-dbcommand-dbcmd.replSetGetStatus">
<code class="leafygreen-ui-1l06pbn">
replSetGetStatus
</code>
</a>
command. Apply this
action to the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
replSetHeartbeat
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-replSetHeartbeat" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-replSetHeartbeat">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the deprecated
<code class="leafygreen-ui-1l06pbn">
replSetHeartbeat
</code>
command. Apply this
action to the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
replSetStateChange
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-replSetStateChange" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-replSetStateChange">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can change the state of a replica set through the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/replSetFreeze/#mongodb-dbcommand-dbcmd.replSetFreeze">
<code class="leafygreen-ui-1l06pbn">
replSetFreeze
</code>
</a>
,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/replSetMaintenance/#mongodb-dbcommand-dbcmd.replSetMaintenance">
<code class="leafygreen-ui-1l06pbn">
replSetMaintenance
</code>
</a>
,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/replSetStepDown/#mongodb-dbcommand-dbcmd.replSetStepDown">
<code class="leafygreen-ui-1l06pbn">
replSetStepDown
</code>
</a>
, and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/replSetSyncFrom/#mongodb-dbcommand-dbcmd.replSetSyncFrom">
<code class="leafygreen-ui-1l06pbn">
replSetSyncFrom
</code>
</a>
commands. Apply this action to the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
resync
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-resync" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-resync">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the deprecated
<code class="leafygreen-ui-1l06pbn">
resync
</code>
command. Apply this action to
the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
</dd>
</dl>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Sharding Actions
<a class="headerlink leafygreen-ui-1kepx47" href="#sharding-actions" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="sharding-actions">
</div>
</a>
</h2>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
addShard
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-addShard" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-addShard">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/addShard/#mongodb-dbcommand-dbcmd.addShard">
<code class="leafygreen-ui-1l06pbn">
addShard
</code>
</a>
command. Apply this action
to the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
checkMetadataConsistency
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-checkMetadataConsistency" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-checkMetadataConsistency">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/checkMetadataConsistency/#mongodb-dbcommand-dbcmd.checkMetadataConsistency">
<code class="leafygreen-ui-1l06pbn">
checkMetadataConsistency
</code>
</a>
command.
Apply this action to
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
, database or collection resources.
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
7.0
</em>
.
</p>
</div>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
clearJumboFlag
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-clearJumboFlag" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-clearJumboFlag">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Required to clear a chunk's jumbo flag using the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/clearJumboFlag/#mongodb-dbcommand-dbcmd.clearJumboFlag">
<code class="leafygreen-ui-1l06pbn">
clearJumboFlag
</code>
</a>
command. Apply this action to database
or collection resources.
</p>
<p class="leafygreen-ui-1kp3ins">
Included in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/built-in-roles/#mongodb-authrole-clusterManager">
<code class="leafygreen-ui-1l06pbn">
clusterManager
</code>
</a>
built-in role.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
enableSharding
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-enableSharding" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-enableSharding">
</div>
</a>
</dt>
<dd>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
Applicable Resources
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
The action can apply to either:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/resource-document/#std-label-resource-specific-db">
Database
</a>
or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/resource-document/#std-label-resource-specific-db-collection">
collection
</a>
resource to enable sharding
for a database or shard a collection.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/resource-document/#std-label-resource-specific-collection">
Cluster
</a>
resource to
perform various shard zone operations.
</p>
</li>
</ul>
</div>
</div>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:25%"/>
<col style="width:75%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Resources
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<div class="line-block">
<div class="line">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/resource-document/#std-label-resource-specific-db">
Database
</a>
or
</div>
<div class="line">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/resource-document/#std-label-resource-specific-db-collection">
Collection
</a>
</div>
</div>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Grants users privileges to perform the following operations:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Enable sharding on a database using the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/enableSharding/#mongodb-dbcommand-dbcmd.enableSharding">
<code class="leafygreen-ui-1l06pbn">
enableSharding
</code>
</a>
command, and
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Shard a collection using the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/shardCollection/#mongodb-dbcommand-dbcmd.shardCollection">
<code class="leafygreen-ui-1l06pbn">
shardCollection
</code>
</a>
command.
</p>
</li>
</ul>
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<div class="line-block">
<div class="line">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/resource-document/#std-label-resource-cluster">
Cluster
</a>
</div>
</div>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Grants users privileges to perform the following shard zone
operations:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/addShardToZone/#mongodb-dbcommand-dbcmd.addShardToZone">
<code class="leafygreen-ui-1l06pbn">
addShardToZone
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/updateZoneKeyRange/#mongodb-dbcommand-dbcmd.updateZoneKeyRange">
<code class="leafygreen-ui-1l06pbn">
updateZoneKeyRange
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/removeShardFromZone/#mongodb-dbcommand-dbcmd.removeShardFromZone">
<code class="leafygreen-ui-1l06pbn">
removeShardFromZone
</code>
</a>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
You can also perform these shard zone operations if you have
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-authaction-find" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
find
</code>
/
</span>
</a>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-authaction-update" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
update
</code>
</span>
</a>
actions on the
appropriate collections in the
<code class="leafygreen-ui-1l06pbn">
config
</code>
database. Refer to
the specific operations for details.
</p>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
refineCollectionShardKey
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-refineCollectionShardKey" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-refineCollectionShardKey">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Provides privileges to refine the shard key for a sharded
collection and run the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/refineCollectionShardKey/#mongodb-dbcommand-dbcmd.refineCollectionShardKey">
<code class="leafygreen-ui-1l06pbn">
refineCollectionShardKey
</code>
</a>
command. Apply this action to
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/resource-document/#std-label-resource-specific-db">
database
</a>
or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/resource-document/#std-label-resource-specific-db-collection">
collection
</a>
resources.
</p>
<p class="leafygreen-ui-1kp3ins">
Included in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/built-in-roles/#mongodb-authrole-clusterManager">
<code class="leafygreen-ui-1l06pbn">
clusterManager
</code>
</a>
built-in role.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
reshardCollection
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-reshardCollection" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-reshardCollection">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/reshardCollection/#mongodb-dbcommand-dbcmd.reshardCollection">
<code class="leafygreen-ui-1l06pbn">
reshardCollection
</code>
</a>
command. Apply
this action to
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/resource-document/#std-label-resource-specific-db">
database
</a>
or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/resource-document/#std-label-resource-specific-db-collection">
collection
</a>
resources.
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
5.0
</em>
.
</p>
</div>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
flushRouterConfig
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-flushRouterConfig" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-flushRouterConfig">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/flushRouterConfig/#mongodb-dbcommand-dbcmd.flushRouterConfig">
<code class="leafygreen-ui-1l06pbn">
flushRouterConfig
</code>
</a>
command. Apply this
action to the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
getShardMap
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-getShardMap" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-getShardMap">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/getShardMap/#mongodb-dbcommand-dbcmd.getShardMap">
<code class="leafygreen-ui-1l06pbn">
getShardMap
</code>
</a>
command. Apply this action
to the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
listShards
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-listShards" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-listShards">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/listShards/#mongodb-dbcommand-dbcmd.listShards">
<code class="leafygreen-ui-1l06pbn">
listShards
</code>
</a>
command. Apply this action
to the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
moveChunk
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-moveChunk" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-moveChunk">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/moveChunk/#mongodb-dbcommand-dbcmd.moveChunk">
<code class="leafygreen-ui-1l06pbn">
moveChunk
</code>
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/moveRange/#mongodb-dbcommand-dbcmd.moveRange">
<code class="leafygreen-ui-1l06pbn">
moveRange
</code>
</a>
commands. In addition, user can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/movePrimary/#mongodb-dbcommand-dbcmd.movePrimary">
<code class="leafygreen-ui-1l06pbn">
movePrimary
</code>
</a>
command provided that the privilege is
applied to an appropriate database resource. Apply this action to
database or collection resources.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
removeShard
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-removeShard" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-removeShard">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/removeShard/#mongodb-dbcommand-dbcmd.removeShard">
<code class="leafygreen-ui-1l06pbn">
removeShard
</code>
</a>
command. Apply this
action to the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
shardedDataDistribution
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-shardedDataDistribution" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-shardedDataDistribution">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/shardedDataDistribution/#mongodb-pipeline-pipe.-shardedDataDistribution">
<code class="leafygreen-ui-1l06pbn">
$shardedDataDistribution
</code>
</a>
aggregation
pipeline stage.
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
6.0.3
</em>
.
</p>
</div>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
shardingState
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-shardingState" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-shardingState">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/shardingState/#mongodb-dbcommand-dbcmd.shardingState">
<code class="leafygreen-ui-1l06pbn">
shardingState
</code>
</a>
command. Apply this
action to the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
transitionFromDedicatedConfigServer
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-transitionFromDedicatedConfigServer" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-transitionFromDedicatedConfigServer">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User with this action on the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource can run the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/transitionFromDedicatedConfigServer/#mongodb-dbcommand-dbcmd.transitionFromDedicatedConfigServer">
<code class="leafygreen-ui-1l06pbn">
transitionFromDedicatedConfigServer
</code>
</a>
command.
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
8.0
</em>
.
</p>
</div>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
transitionToDedicatedConfigServer
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-transitionToDedicatedConfigServer" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-transitionToDedicatedConfigServer">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User with this action on the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource can run the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/transitionToDedicatedConfigServer/#mongodb-dbcommand-dbcmd.transitionToDedicatedConfigServer">
<code class="leafygreen-ui-1l06pbn">
transitionToDedicatedConfigServer
</code>
</a>
command.
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
8.0
</em>
.
</p>
</div>
</dd>
</dl>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Server Administration Actions
<a class="headerlink leafygreen-ui-1kepx47" href="#server-administration-actions" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="server-administration-actions">
</div>
</a>
</h2>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
applicationMessage
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-applicationMessage" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-applicationMessage">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/logApplicationMessage/#mongodb-dbcommand-dbcmd.logApplicationMessage">
<code class="leafygreen-ui-1l06pbn">
logApplicationMessage
</code>
</a>
command. Apply
this action to the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
bypassWriteBlockingMode
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-bypassWriteBlockingMode" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-bypassWriteBlockingMode">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform writes even when writes are blocked by the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/setUserWriteBlockMode/#mongodb-dbcommand-dbcmd.setUserWriteBlockMode">
<code class="leafygreen-ui-1l06pbn">
setUserWriteBlockMode
</code>
</a>
command.
Apply this action to the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
bypassDefaultMaxTimeMS
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-bypassDefaultMaxTimeMS" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-bypassDefaultMaxTimeMS">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
All queries run by the user ignore the value of
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/cluster-parameters/defaultMaxTimeMS/#mongodb-parameter-param.defaultMaxTimeMS">
<code class="leafygreen-ui-1l06pbn">
defaultMaxTimeMS
</code>
.
</a>
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
closeAllDatabases
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-closeAllDatabases" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-closeAllDatabases">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the deprecated
<code class="leafygreen-ui-1l06pbn">
closeAllDatabases
</code>
command. Apply this
action to the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
collMod
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-collMod" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-collMod">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/collMod/#mongodb-dbcommand-dbcmd.collMod">
<code class="leafygreen-ui-1l06pbn">
collMod
</code>
</a>
command. Apply this action to
database or collection resources.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
compact
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-compact" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-compact">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/compact/#mongodb-dbcommand-dbcmd.compact">
<code class="leafygreen-ui-1l06pbn">
compact
</code>
</a>
command and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/autoCompact/#mongodb-dbcommand-dbcmd.autoCompact">
<code class="leafygreen-ui-1l06pbn">
autoCompact
</code>
</a>
commands. Apply this action to database or collection resources.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
compactStructuredEncryptionData
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-compactStructuredEncryptionData" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-compactStructuredEncryptionData">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/compactStructuredEncryptionData/#mongodb-dbcommand-dbcmd.compactStructuredEncryptionData">
<code class="leafygreen-ui-1l06pbn">
compactStructuredEncryptionData
</code>
</a>
command. Apply this action to database or collection resources.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
connPoolSync
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-connPoolSync" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-connPoolSync">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the internal
<code class="leafygreen-ui-1l06pbn">
connPoolSync
</code>
command. Apply this
action to the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
convertToCapped
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-convertToCapped" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-convertToCapped">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/convertToCapped/#mongodb-dbcommand-dbcmd.convertToCapped">
<code class="leafygreen-ui-1l06pbn">
convertToCapped
</code>
</a>
command. Apply this
action to database or collection resources.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
dropConnections
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-dropConnections" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-dropConnections">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/dropConnections/#mongodb-dbcommand-dbcmd.dropConnections">
<code class="leafygreen-ui-1l06pbn">
dropConnections
</code>
</a>
command. Apply this
action to the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
dropDatabase
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-dropDatabase" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-dropDatabase">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/dropDatabase/#mongodb-dbcommand-dbcmd.dropDatabase">
<code class="leafygreen-ui-1l06pbn">
dropDatabase
</code>
</a>
command. Apply this action
to database resources.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
dropIndex
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-dropIndex" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-dropIndex">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/dropIndexes/#mongodb-dbcommand-dbcmd.dropIndexes">
<code class="leafygreen-ui-1l06pbn">
dropIndexes
</code>
</a>
command. Apply this action
to database or collection resources.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
forceUUID
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-forceUUID" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-forceUUID">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can create a collection with a user-defined
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/databases-and-collections/#std-label-collections-uuids">
collection UUID
</a>
using the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/applyOps/#mongodb-dbcommand-dbcmd.applyOps">
<code class="leafygreen-ui-1l06pbn">
applyOps
</code>
</a>
command.
</p>
<p class="leafygreen-ui-1kp3ins">
Apply this action to the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
fsync
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-fsync" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-fsync">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/fsync/#mongodb-dbcommand-dbcmd.fsync">
<code class="leafygreen-ui-1l06pbn">
fsync
</code>
</a>
command. Apply this action to
the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
getDefaultRWConcern
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-getDefaultRWConcern" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-getDefaultRWConcern">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can issue the administrative
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/getDefaultRWConcern/#mongodb-dbcommand-dbcmd.getDefaultRWConcern">
<code class="leafygreen-ui-1l06pbn">
getDefaultRWConcern
</code>
</a>
command. Apply this action to the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
getParameter
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-getParameter" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-getParameter">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/getParameter/#mongodb-dbcommand-dbcmd.getParameter">
<code class="leafygreen-ui-1l06pbn">
getParameter
</code>
</a>
command. Apply this
action to the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
hostInfo
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-hostInfo" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-hostInfo">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Provides information about the server the MongoDB instance runs on. Apply
this action to the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
oidReset
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-oidReset" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-oidReset">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Required to reset the 5 byte random string that is used in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/bson-types/#std-label-objectid">
ObjectID
<!-- -->
.
</a>
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
logRotate
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-logRotate" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-logRotate">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/logRotate/#mongodb-dbcommand-dbcmd.logRotate">
<code class="leafygreen-ui-1l06pbn">
logRotate
</code>
</a>
command. Apply this action
to the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
reIndex
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-reIndex" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-reIndex">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/reIndex/#mongodb-dbcommand-dbcmd.reIndex">
<code class="leafygreen-ui-1l06pbn">
reIndex
</code>
</a>
command. Apply this action to
database or collection resources.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
renameCollectionSameDB
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-renameCollectionSameDB" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-renameCollectionSameDB">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Allows the user to rename collections on the current database using the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/renameCollection/#mongodb-dbcommand-dbcmd.renameCollection">
<code class="leafygreen-ui-1l06pbn">
renameCollection
</code>
</a>
command. Apply this action to database
resources.
</p>
<p class="leafygreen-ui-1kp3ins">
Additionally, the user must either
<em>
have
</em>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-authaction-find" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
find
</code>
</span>
</a>
on the
source collection or
<em>
not have
</em>
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-authaction-find" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
find
</code>
</span>
</a>
on the destination
collection.
</p>
<p class="leafygreen-ui-1kp3ins">
If a collection with the new name already exists, the user must also
have the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-authaction-dropCollection" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
dropCollection
</code>
</span>
</a>
action on the destination
collection.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
rotateCertificates
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-rotateCertificates" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-rotateCertificates">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/rotateCertificates/#mongodb-dbcommand-dbcmd.rotateCertificates">
<code class="leafygreen-ui-1l06pbn">
rotateCertificates
</code>
</a>
command
command. Apply this action to the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
setDefaultRWConcern
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-setDefaultRWConcern" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-setDefaultRWConcern">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can issue the administrative
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/setDefaultRWConcern/#mongodb-dbcommand-dbcmd.setDefaultRWConcern">
<code class="leafygreen-ui-1l06pbn">
setDefaultRWConcern
</code>
</a>
command. Apply this action to the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
setParameter
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-setParameter" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-setParameter">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/setParameter/#mongodb-dbcommand-dbcmd.setParameter">
<code class="leafygreen-ui-1l06pbn">
setParameter
</code>
</a>
command. Apply this
action to the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
setUserWriteBlockMode
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-setUserWriteBlockMode" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-setUserWriteBlockMode">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/setUserWriteBlockMode/#mongodb-dbcommand-dbcmd.setUserWriteBlockMode">
<code class="leafygreen-ui-1l06pbn">
setUserWriteBlockMode
</code>
</a>
command.
Apply this action to the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
shutdown
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-shutdown" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-shutdown">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/shutdown/#mongodb-dbcommand-dbcmd.shutdown">
<code class="leafygreen-ui-1l06pbn">
shutdown
</code>
</a>
command. Apply this action
to the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
touch
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-touch" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-touch">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the deprecated
<code class="leafygreen-ui-1l06pbn">
touch
</code>
command. Apply this action to
the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
</dd>
</dl>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Session Actions
<a class="headerlink leafygreen-ui-1kepx47" href="#session-actions" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="session-actions">
</div>
</a>
</h2>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
impersonate
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-impersonate" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-impersonate">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/killAllSessionsByPattern/#mongodb-dbcommand-dbcmd.killAllSessionsByPattern">
<code class="leafygreen-ui-1l06pbn">
killAllSessionsByPattern
</code>
</a>
command
with
<code class="leafygreen-ui-1l06pbn">
users
</code>
and
<code class="leafygreen-ui-1l06pbn">
roles
</code>
pattern. Apply this action to the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
<p class="leafygreen-ui-1kp3ins">
To run
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/killAllSessionsByPattern/#mongodb-dbcommand-dbcmd.killAllSessionsByPattern">
<code class="leafygreen-ui-1l06pbn">
killAllSessionsByPattern
</code>
</a>
command, users must
also have
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-authaction-killAnySession" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
killAnySession
</code>
</span>
</a>
privileges on the cluster
resource.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
listSessions
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-listSessions" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-listSessions">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/listSessions/#mongodb-pipeline-pipe.-listSessions">
<code class="leafygreen-ui-1l06pbn">
$listSessions
</code>
</a>
operation or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/listLocalSessions/#mongodb-pipeline-pipe.-listLocalSessions">
<code class="leafygreen-ui-1l06pbn">
$listLocalSessions
</code>
</a>
operation for all users or specified
user(s). Apply this action to the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
killAnySession
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-killAnySession" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-killAnySession">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/killAllSessions/#mongodb-dbcommand-dbcmd.killAllSessions">
<code class="leafygreen-ui-1l06pbn">
killAllSessions
</code>
</a>
and the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/killAllSessionsByPattern/#mongodb-dbcommand-dbcmd.killAllSessionsByPattern">
<code class="leafygreen-ui-1l06pbn">
killAllSessionsByPattern
</code>
</a>
command. Apply this action to
the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-authaction-impersonate" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
impersonate
</code>
</span>
</a>
</p>
</div>
</div>
</dd>
</dl>
<span class="leafygreen-ui-1qnjd6d" id="std-label-privilege-actions-atlas-search">
</span>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Atlas Search Index Actions
<a class="headerlink leafygreen-ui-1kepx47" href="#atlas-search-index-actions" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="atlas-search-index-actions">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The following actions enable users to run
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/nav-atlas-search/#std-label-db-commands-atlas-search">
Atlas Search Database
Commands
</a>
. These actions are only relevant
for deployments hosted on
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/" target="_self">
<span>
MongoDB Atlas
<!-- -->
.
</span>
</a>
</p>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
createSearchIndexes
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-createSearchIndexes" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-createSearchIndexes">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can run the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/createSearchIndexes/#mongodb-dbcommand-dbcmd.createSearchIndexes">
<code class="leafygreen-ui-1l06pbn">
createSearchIndexes
</code>
</a>
database command.
Apply this action to the database or collection resource.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
dropSearchIndex
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-dropSearchIndex" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-dropSearchIndex">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can run the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/dropSearchIndex/#mongodb-dbcommand-dbcmd.dropSearchIndex">
<code class="leafygreen-ui-1l06pbn">
dropSearchIndex
</code>
</a>
database command.
Apply this action to the database or collection resource.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
listSearchIndexes
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-listSearchIndexes" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-listSearchIndexes">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can run the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/listSearchIndexes/#mongodb-pipeline-pipe.-listSearchIndexes">
<code class="leafygreen-ui-1l06pbn">
$listSearchIndexes
</code>
</a>
aggregation stage.
Apply this action to the database or collection resource.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
updateSearchIndex
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-updateSearchIndex" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-updateSearchIndex">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can run the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/updateSearchIndex/#mongodb-dbcommand-dbcmd.updateSearchIndex">
<code class="leafygreen-ui-1l06pbn">
updateSearchIndex
</code>
</a>
database command.
Apply this action to the database or collection resource.
</p>
</dd>
</dl>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Diagnostic Actions
<a class="headerlink leafygreen-ui-1kepx47" href="#diagnostic-actions" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="diagnostic-actions">
</div>
</a>
</h2>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
collStats
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-collStats" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-collStats">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/collStats/#mongodb-dbcommand-dbcmd.collStats">
<code class="leafygreen-ui-1l06pbn">
collStats
</code>
</a>
command. Apply this action
to database or collection resources.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
connPoolStats
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-connPoolStats" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-connPoolStats">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/connPoolStats/#mongodb-dbcommand-dbcmd.connPoolStats">
<code class="leafygreen-ui-1l06pbn">
connPoolStats
</code>
</a>
command. Apply this
action to the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
dbHash
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-dbHash" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-dbHash">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/dbHash/#mongodb-dbcommand-dbcmd.dbHash">
<code class="leafygreen-ui-1l06pbn">
dbHash
</code>
</a>
command. Apply this action to
database or collection resources.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
dbStats
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-dbStats" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-dbStats">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/dbStats/#mongodb-dbcommand-dbcmd.dbStats">
<code class="leafygreen-ui-1l06pbn">
dbStats
</code>
</a>
command. Apply this action to
database resources.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
getCmdLineOpts
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-getCmdLineOpts" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-getCmdLineOpts">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/getCmdLineOpts/#mongodb-dbcommand-dbcmd.getCmdLineOpts">
<code class="leafygreen-ui-1l06pbn">
getCmdLineOpts
</code>
</a>
command. Apply this
action to the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
getLog
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-getLog" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-getLog">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/getLog/#mongodb-dbcommand-dbcmd.getLog">
<code class="leafygreen-ui-1l06pbn">
getLog
</code>
</a>
command. Apply this action to
the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
indexStats
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-indexStats" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-indexStats">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can run the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/indexStats/#mongodb-pipeline-pipe.-indexStats">
<code class="leafygreen-ui-1l06pbn">
$indexStats
</code>
</a>
aggregation pipeline stage. Apply
this action to database or collection resources.
</p>
<p class="leafygreen-ui-1kp3ins">
To use the
<code class="leafygreen-ui-1l06pbn">
$indexStats
</code>
stage, users must authenticate with at least the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/built-in-roles/#mongodb-authrole-clusterMonitor">
<code class="leafygreen-ui-1l06pbn">
clusterMonitor
</code>
</a>
role.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
listDatabases
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-listDatabases" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-listDatabases">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/listDatabases/#mongodb-dbcommand-dbcmd.listDatabases">
<code class="leafygreen-ui-1l06pbn">
listDatabases
</code>
</a>
command. Apply this
action to the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
<p class="leafygreen-ui-1kp3ins">
If the user does not have the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-authaction-listDatabases" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
listDatabases
</code>
</span>
</a>
privilege action, users can run the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/listDatabases/#mongodb-dbcommand-dbcmd.listDatabases">
<code class="leafygreen-ui-1l06pbn">
listDatabases
</code>
</a>
command to return a list of databases for which the user has
privileges (including databases for which the user has privileges
on specific collections) if the command is run with
<code class="leafygreen-ui-1l06pbn">
authorizedDatabases
</code>
option unspecified or set to
<code class="leafygreen-ui-1l06pbn">
true
</code>
.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
listCollections
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-listCollections" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-listCollections">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/listCollections/#mongodb-dbcommand-dbcmd.listCollections">
<code class="leafygreen-ui-1l06pbn">
listCollections
</code>
</a>
command. Apply this
action to database resources.
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Users without the required privilege can run the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/listCollections/#mongodb-dbcommand-dbcmd.listCollections">
<code class="leafygreen-ui-1l06pbn">
listCollections
</code>
</a>
command with
<strong>
both
</strong>
<code class="leafygreen-ui-1l06pbn">
authorizedCollections
</code>
and
<code class="leafygreen-ui-1l06pbn">
nameOnly
</code>
options set to
<code class="leafygreen-ui-1l06pbn">
true
</code>
. In this case, the command returns just the name and
type of the collection(s) to which the user has privileges.
</p>
</div>
</div>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
listIndexes
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-listIndexes" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-listIndexes">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/listIndexes/#mongodb-dbcommand-dbcmd.listIndexes">
<code class="leafygreen-ui-1l06pbn">
listIndexes
</code>
</a>
command. Apply this
action to database or collection resources.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
queryStatsRead
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-queryStatsRead" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-queryStatsRead">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can run the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/queryStats/#mongodb-pipeline-pipe.-queryStats">
<code class="leafygreen-ui-1l06pbn">
$queryStats
</code>
</a>
aggregation stage without
the
<code class="leafygreen-ui-1l06pbn">
transformIdentifiers
</code>
option.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
queryStatsReadTransformed
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-queryStatsReadTransformed" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-queryStatsReadTransformed">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can run the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/queryStats/#mongodb-pipeline-pipe.-queryStats">
<code class="leafygreen-ui-1l06pbn">
$queryStats
</code>
</a>
aggregation stage with or without
the
<code class="leafygreen-ui-1l06pbn">
transformIdentifiers
</code>
option.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
serverStatus
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-serverStatus" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-serverStatus">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/serverStatus/#mongodb-dbcommand-dbcmd.serverStatus">
<code class="leafygreen-ui-1l06pbn">
serverStatus
</code>
</a>
command. Apply this action
to the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
validate
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-validate" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-validate">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/validate/#mongodb-dbcommand-dbcmd.validate">
<code class="leafygreen-ui-1l06pbn">
validate
</code>
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/validateDBMetadata/#mongodb-dbcommand-dbcmd.validateDBMetadata">
<code class="leafygreen-ui-1l06pbn">
validateDBMetadata
</code>
</a>
commands. Apply this action to
database or collection resources.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
top
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-top" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-top">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/top/#mongodb-dbcommand-dbcmd.top">
<code class="leafygreen-ui-1l06pbn">
top
</code>
</a>
command. Apply this action to the
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
</dd>
</dl>
<span class="leafygreen-ui-1qnjd6d" id="std-label-internal-actions">
</span>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Internal Actions
<a class="headerlink leafygreen-ui-1kepx47" href="#internal-actions" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="internal-actions">
</div>
</a>
</h2>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
anyAction
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-anyAction" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-anyAction">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Allows any action on a resource.
<strong>
Do not
</strong>
assign this action unless
it is absolutely necessary.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
internal
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-internal" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-internal">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Allows internal actions.
<strong>
Do not
</strong>
assign this action unless
it is absolutely necessary.
</p>
</dd>
</dl>
<dl class="authaction">
<dt>
<code class="leafygreen-ui-1l06pbn">
applyOps
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-authaction-applyOps" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-authaction-applyOps">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
User can perform the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/applyOps/#mongodb-dbcommand-dbcmd.applyOps">
<code class="leafygreen-ui-1l06pbn">
applyOps
</code>
</a>
command. Apply this action
to a
<code class="leafygreen-ui-1l06pbn">
cluster
</code>
resource.
</p>
</dd>
</dl>
</section>
</section>
|
https://www.mongodb.com/docs/manual/appendix/security/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Appendix
<a class="headerlink leafygreen-ui-1kepx47" href="#appendix" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="appendix">
</div>
</a>
</h1>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/appendix/security/appendixA-openssl-ca/">
Appendix A - OpenSSL CA Certificate for Testing Self-Managed Deployments
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/appendix/security/appendixB-openssl-server/">
Appendix B - OpenSSL Server Certificates for Testing Self-Managed Deployments
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/appendix/security/appendixC-openssl-client/">
Appendix C - OpenSSL Client Certificates for Testing Self-Managed Deployments
</a>
</p>
</li>
</ul>
</section>
|
https://www.mongodb.com/docs/manual/appendix/security/appendixB-openssl-server/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Appendix B - OpenSSL Server Certificates for Testing Self-Managed Deployments
<a class="headerlink leafygreen-ui-1kepx47" href="#appendix-b---openssl-server-certificates-for-testing-self-managed-deployments" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="appendix-b---openssl-server-certificates-for-testing-self-managed-deployments">
</div>
</a>
</h1>
<div class="leafygreen-ui-1sjx7ru" role="note">
<h2 class="leafygreen-ui-29m78u">
Warning
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
Disclaimer
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
This page is provided for
<strong class="css-4dei7l">
testing purposes
</strong>
only and the
certificates are for
<strong class="css-4dei7l">
testing purposes only
</strong>
.
</p>
<p class="leafygreen-ui-1kp3ins">
The following tutorial provides some basic steps for creating
<strong class="css-4dei7l">
test
</strong>
x.509 certificates:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Do not use these certificates for production. Instead, follow your
security policies.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For information on OpenSSL, refer to the official OpenSSL docs.
Although this tutorial uses OpenSSL, the material should not be
taken as an authoritative reference on OpenSSL.
</p>
</li>
</ul>
</div>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Prerequisite
<a class="headerlink leafygreen-ui-1kepx47" href="#prerequisite" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="prerequisite">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The procedure outlined on this page uses the
<strong class="css-4dei7l">
test
</strong>
intermediate authority
certificate and key
<code class="file docutils literal">
<span class="pre">
mongodb-test-ia.crt
</span>
</code>
and
<code class="file docutils literal">
<span class="pre">
mongodb-test-ia.key
</span>
</code>
created in
<a class="leafygreen-ui-tqgtui" href="/docs/manual/appendix/security/appendixA-openssl-ca/">
Appendix A - OpenSSL CA Certificate for Testing Self-Managed Deployments
</a>
.
</p>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Procedure
<a class="headerlink leafygreen-ui-1kepx47" href="#procedure" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="procedure">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The following procedure outlines the steps to create
<strong class="css-4dei7l">
test
</strong>
certificates
for MongoDB servers. For steps to create
<strong class="css-4dei7l">
test
</strong>
certificates for MongoDB
clients, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/appendix/security/appendixC-openssl-client/">
Appendix C - OpenSSL Client Certificates for Testing Self-Managed Deployments
<!-- -->
.
</a>
</p>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
A. Create the OpenSSL Configuration File
<a class="headerlink leafygreen-ui-1kepx47" href="#a.-create-the-openssl-configuration-file" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="a.-create-the-openssl-configuration-file">
</div>
</a>
</h3>
<ol class="leafygreen-ui-rioki0" type="1">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Create a
<strong class="css-4dei7l">
test
</strong>
configuration file
<code class="leafygreen-ui-1l06pbn">
openssl-test-server.cnf
</code>
for
your server with the following content:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"# NOT FOR PRODUCTION USE. OpenSSL configuration file for testing.\n\n\n[ req ]\ndefault_bits = 4096\ndefault_keyfile = myTestServerCertificateKey.pem ## The default private key file name.\ndefault_md = sha256\ndistinguished_name = req_dn\nreq_extensions = v3_req\n\n[ v3_req ]\nsubjectKeyIdentifier = hash\nbasicConstraints = CA:FALSE\nkeyUsage = critical, digitalSignature, keyEncipherment\nnsComment = \"OpenSSL Generated Certificate for TESTING only. NOT FOR PRODUCTION USE.\"\nextendedKeyUsage = serverAuth, clientAuth\nsubjectAltName = @alt_names\n\n[ alt_names ]\nDNS.1 = ##TODO: Enter the DNS names. The DNS names should match the server names.\nDNS.2 = ##TODO: Enter the DNS names. The DNS names should match the server names.\nIP.1 = ##TODO: Enter the IP address.\nIP.2 = ##TODO: Enter the IP address.\n\n[ req_dn ]\ncountryName = Country Name (2 letter code)\ncountryName_default = TestServerCertificateCountry\ncountryName_min = 2\ncountryName_max = 2\n\nstateOrProvinceName = State or Province Name (full name)\nstateOrProvinceName_default = TestServerCertificateState\nstateOrProvinceName_max = 64\n\nlocalityName = Locality Name (eg, city)\nlocalityName_default = TestServerCertificateLocality\nlocalityName_max = 64\n\norganizationName = Organization Name (eg, company)\norganizationName_default = TestServerCertificateOrg\norganizationName_max = 64\n\norganizationalUnitName = Organizational Unit Name (eg, section)\norganizationalUnitName_default = TestServerCertificateOrgUnit\norganizationalUnitName_max = 64\n\ncommonName = Common Name (eg, YOUR name)\ncommonName_max = 64"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light none leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"># NOT FOR PRODUCTION USE. OpenSSL configuration file for testing.</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">[ req ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx">default_bits = 4096</td></tr><tr class=""><td class="leafygreen-ui-7razhx">default_keyfile = myTestServerCertificateKey.pem ## The default private key file name.</td></tr><tr class=""><td class="leafygreen-ui-7razhx">default_md = sha256</td></tr><tr class=""><td class="leafygreen-ui-7razhx">distinguished_name = req_dn</td></tr><tr class=""><td class="leafygreen-ui-7razhx">req_extensions = v3_req</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">[ v3_req ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx">subjectKeyIdentifier = hash</td></tr><tr class=""><td class="leafygreen-ui-7razhx">basicConstraints = CA:FALSE</td></tr><tr class=""><td class="leafygreen-ui-7razhx">keyUsage = critical, digitalSignature, keyEncipherment</td></tr><tr class=""><td class="leafygreen-ui-7razhx">nsComment = "OpenSSL Generated Certificate for TESTING only. NOT FOR PRODUCTION USE."</td></tr><tr class=""><td class="leafygreen-ui-7razhx">extendedKeyUsage = serverAuth, clientAuth</td></tr><tr class=""><td class="leafygreen-ui-7razhx">subjectAltName = @alt_names</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">[ alt_names ]</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx">DNS.1 = ##TODO: Enter the DNS names. The DNS names should match the server names.</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx">DNS.2 = ##TODO: Enter the DNS names. The DNS names should match the server names.</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx">IP.1 = ##TODO: Enter the IP address.</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx">IP.2 = ##TODO: Enter the IP address.</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">[ req_dn ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx">countryName = Country Name (2 letter code)</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx">countryName_default = TestServerCertificateCountry</td></tr><tr class=""><td class="leafygreen-ui-7razhx">countryName_min = 2</td></tr><tr class=""><td class="leafygreen-ui-7razhx">countryName_max = 2</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">stateOrProvinceName = State or Province Name (full name)</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx">stateOrProvinceName_default = TestServerCertificateState</td></tr><tr class=""><td class="leafygreen-ui-7razhx">stateOrProvinceName_max = 64</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">localityName = Locality Name (eg, city)</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx">localityName_default = TestServerCertificateLocality</td></tr><tr class=""><td class="leafygreen-ui-7razhx">localityName_max = 64</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">organizationName = Organization Name (eg, company)</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx">organizationName_default = TestServerCertificateOrg</td></tr><tr class=""><td class="leafygreen-ui-7razhx">organizationName_max = 64</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">organizationalUnitName = Organizational Unit Name (eg, section)</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx">organizationalUnitName_default = TestServerCertificateOrgUnit</td></tr><tr class=""><td class="leafygreen-ui-7razhx">organizationalUnitName_max = 64</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">commonName = Common Name (eg, YOUR name)</td></tr><tr class=""><td class="leafygreen-ui-7razhx">commonName_max = 64</td></tr></tbody></table></code></pre>
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<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
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</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
In the
<code class="leafygreen-ui-1l06pbn">
[alt_names]
</code>
section, enter the appropriate
DNS names and/or IP addresses for the MongoDB server. You can
specify multiple DNS names a MongoDB server.
</p>
<p class="leafygreen-ui-1kp3ins">
For OpenSSL SAN identifiers, MongoDB supports:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
DNS names and/or
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
IP address fields
</p>
</li>
</ul>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<em>
Optional
</em>
. You can update the default Distinguished Name (DN)
values.
</p>
</li>
</ol>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<div class="leafygreen-ui-9mycqc">
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Specify a non-empty value for at least one of the following
attributes: Organization (
<code class="leafygreen-ui-1l06pbn">
O
</code>
), the Organizational Unit
(
<code class="leafygreen-ui-1l06pbn">
OU
</code>
), or the Domain Component (
<code class="leafygreen-ui-1l06pbn">
DC
</code>
).
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
When creating
<strong class="css-4dei7l">
test
</strong>
server certificates for internal membership
authentication, the following attributes, if specified, must match
exactly across the member certificates: Organization (
<code class="leafygreen-ui-1l06pbn">
O
</code>
),
Organizational Unit (
<code class="leafygreen-ui-1l06pbn">
OU
</code>
), the Domain Component (
<code class="leafygreen-ui-1l06pbn">
DC
</code>
).
</p>
<p class="leafygreen-ui-1kp3ins">
For more information on requirements for internal membership
authentication, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/security-internal-authentication/#std-label-internal-auth-x509">
membership authentication
<!-- -->
.
</a>
</p>
</li>
</ul>
</div>
</div>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
B. Generate the Test PEM File for Server
<a class="headerlink leafygreen-ui-1kepx47" href="#b.-generate-the-test-pem-file-for-server" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="b.-generate-the-test-pem-file-for-server">
</div>
</a>
</h3>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Before proceeding, ensure that you have entered the
appropriate DNS names in the
<code class="leafygreen-ui-1l06pbn">
[alt_names]
</code>
section of the
configuration file
<code class="leafygreen-ui-1l06pbn">
openssl-test-server.cnf
</code>
.
</p>
</div>
</div>
<ol class="leafygreen-ui-rioki0" type="1">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Create the
<strong class="css-4dei7l">
test
</strong>
key file
<code class="file docutils literal">
<span class="pre">
mongodb-test-server1.key
</span>
</code>
.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"openssl genrsa -out mongodb-test-server1.key 4096","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">openssl genrsa -out mongodb-test-server1.key 4096</td></tr></tbody></table></code></pre>
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<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Create the
<strong class="css-4dei7l">
test
</strong>
certificate signing request
<code class="file docutils literal">
<span class="pre">
mongodb-test-server1.csr
</span>
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
When asked for Distinguished Name values, enter the appropriate
values for your test certificate:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Specify a non-empty value for at least one of the following
attributes: Organization (
<code class="leafygreen-ui-1l06pbn">
O
</code>
), the Organizational Unit
(
<code class="leafygreen-ui-1l06pbn">
OU
</code>
), or the Domain Component (
<code class="leafygreen-ui-1l06pbn">
DC
</code>
).
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
When creating
<strong class="css-4dei7l">
test
</strong>
server certificates for internal membership
authentication, the following attributes, if specified, must match
exactly across the member certificates: Organization (
<code class="leafygreen-ui-1l06pbn">
O
</code>
),
Organizational Unit (
<code class="leafygreen-ui-1l06pbn">
OU
</code>
), the Domain Component (
<code class="leafygreen-ui-1l06pbn">
DC
</code>
).
</p>
</li>
</ul>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"openssl req -new -key mongodb-test-server1.key -out mongodb-test-server1.csr -config openssl-test-server.cnf","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">openssl req -new -key mongodb-test-server1.key -out mongodb-test-server1.csr -config openssl-test-server.cnf</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Create the
<strong class="css-4dei7l">
test
</strong>
server certificate
<code class="file docutils literal">
<span class="pre">
mongodb-test-server1.crt
</span>
</code>
.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"openssl x509 -sha256 -req -days 365 -in mongodb-test-server1.csr -CA mongodb-test-ia.crt -CAkey mongodb-test-ia.key -CAcreateserial -out mongodb-test-server1.crt -extfile openssl-test-server.cnf -extensions v3_req","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">openssl x509 -sha256 -req -days 365 -<span class="lg-highlight-keyword">in</span> mongodb-test-server1.csr -CA mongodb-test-ia.crt -CAkey mongodb-test-ia.key -CAcreateserial -out mongodb-test-server1.crt -extfile openssl-test-server.cnf -extensions v3_req</td></tr></tbody></table></code></pre>
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Create the
<strong class="css-4dei7l">
test
</strong>
PEM file for the server.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"cat mongodb-test-server1.crt mongodb-test-server1.key > test-server1.pem","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-built_in">cat</span> mongodb-test-server1.crt mongodb-test-server1.key > test-server1.pem</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
You can use the
<strong class="css-4dei7l">
test
</strong>
PEM file when configuring a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
or a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
for TLS/SSL
<strong class="css-4dei7l">
testing
</strong>
. For example:
</p>
<div class="leafygreen-ui-vg7qwp" role="note">
<h2 class="leafygreen-ui-2xicti">
Example
</h2>
<div class="leafygreen-ui-9mycqc">
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"mongod --tlsMode requireTLS --tlsCertificateKeyFile test-server1.pem --tlsCAFile test-ca.pem","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">mongod <!-- -->-<!-- -->-<!-- -->tlsMode requireTLS <!-- -->-<!-- -->-<!-- -->tlsCertificateKeyFile test<!-- -->-<!-- -->server1.<span class="lg-highlight-property">pem</span> <!-- -->-<!-- -->-<!-- -->tlsCAFile test<!-- -->-<!-- -->ca.<span class="lg-highlight-property">pem</span></td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</div>
</div>
<dl>
<dt>
On macOS,
</dt>
<dd class="css-1ufxuu7">
<p class="leafygreen-ui-1kp3ins">
If you are
<strong class="css-4dei7l">
testing
</strong>
with Keychain Access to manage
certificates, create a pkcs-12 file to add to Keychain Access
instead of a PEM file:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"openssl pkcs12 -export -out test-server1.pfx -inkey mongodb-test-server1.key -in mongodb-test-server1.crt -certfile mongodb-test-ia.crt","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">openssl pkcs12 -<span class="lg-highlight-built_in">export</span> -out test-server1.pfx -inkey mongodb-test-server1.key -<span class="lg-highlight-keyword">in</span> mongodb-test-server1.crt -certfile mongodb-test-ia.crt</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Once added to Keychain Access, instead of specifying the certificate key
file, you can use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#std-option-mongod.--tlsCertificateSelector">
<code class="leafygreen-ui-1l06pbn">
--tlsCertificateSelector
</code>
</a>
to specify the certificate to use. If
the CA file is also in Keychain Access, you can omit
<code class="leafygreen-ui-1l06pbn">
--tlsCAFile
</code>
as well.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"mongod --tlsMode requireTLS --tlsCertificateSelector subject=\"<testservercertificatecommonname>\"","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">mongod <!-- -->-<!-- -->-<!-- -->tlsMode requireTLS <!-- -->-<!-- -->-<!-- -->tlsCertificateSelector subject<!-- -->=<span class="lg-highlight-string">"<TestServerCertificateCommonName>"</span></td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</dd>
</dl>
</li>
</ol>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/appendix/security/appendixA-openssl-ca/#std-label-appendix-ca-certificate">
Appendix A - OpenSSL CA Certificate for Testing Self-Managed Deployments
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/appendix/security/appendixC-openssl-client/#std-label-appendix-client-certificate">
Appendix C - OpenSSL Client Certificates for Testing Self-Managed Deployments
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/configure-x509-member-authentication/#std-label-x509-member-certificate">
Member x.509 Certificate
</a>
</p>
</li>
</ul>
</div>
</div>
</section>
</section>
</section>
|
https://www.mongodb.com/docs/manual/appendix/security/appendixA-openssl-ca/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Appendix A - OpenSSL CA Certificate for Testing Self-Managed Deployments
<a class="headerlink leafygreen-ui-1kepx47" href="#appendix-a---openssl-ca-certificate-for-testing-self-managed-deployments" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="appendix-a---openssl-ca-certificate-for-testing-self-managed-deployments">
</div>
</a>
</h1>
<div class="leafygreen-ui-1sjx7ru" role="note">
<h2 class="leafygreen-ui-29m78u">
Warning
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
Disclaimer
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
This page is provided for
<strong class="css-4dei7l">
testing purposes
</strong>
only and the
certificates are for
<strong class="css-4dei7l">
testing purposes only
</strong>
.
</p>
<p class="leafygreen-ui-1kp3ins">
The following tutorial provides some guidelines for creating
<strong class="css-4dei7l">
test
</strong>
x.509 certificates:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Do not use these certificates for production. Instead, follow your
security policies.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For information on OpenSSL, refer to the official OpenSSL docs.
Although this tutorial uses OpenSSL, the material should not be
taken as an authoritative reference on OpenSSL.
</p>
</li>
</ul>
</div>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Procedures
<a class="headerlink leafygreen-ui-1kepx47" href="#procedures" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="procedures">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The following procedures outlines the steps to create a
<strong class="css-4dei7l">
test
</strong>
CA PEM
file. The procedure creates both the CA PEM file and an intermediate
authority certificate and key files to sign server/client
<strong class="css-4dei7l">
test
</strong>
certificates.
</p>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
A. Create the OpenSSL Configuration File
<a class="headerlink leafygreen-ui-1kepx47" href="#a.-create-the-openssl-configuration-file" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="a.-create-the-openssl-configuration-file">
</div>
</a>
</h3>
<ol class="leafygreen-ui-rioki0" type="1">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Create a configuration file
<code class="leafygreen-ui-1l06pbn">
openssl-test-ca.cnf
</code>
with the
following content:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"# NOT FOR PRODUCTION USE. OpenSSL configuration file for testing.\n\n# For the CA policy\n[ policy_match ]\ncountryName = match\nstateOrProvinceName = match\norganizationName = match\norganizationalUnitName = optional\ncommonName = supplied\nemailAddress = optional\n\n[ req ]\ndefault_bits = 4096\ndefault_keyfile = myTestCertificateKey.pem ## The default private key file name.\ndefault_md = sha256 ## Use SHA-256 for Signatures\ndistinguished_name = req_dn\nreq_extensions = v3_req\nx509_extensions = v3_ca # The extensions to add to the self signed cert\n\n[ v3_req ]\nsubjectKeyIdentifier = hash\nbasicConstraints = CA:FALSE\nkeyUsage = critical, digitalSignature, keyEncipherment\nnsComment = \"OpenSSL Generated Certificate for TESTING only. NOT FOR PRODUCTION USE.\"\nextendedKeyUsage = serverAuth, clientAuth\n\n[ req_dn ]\ncountryName = Country Name (2 letter code)\ncountryName_default =\ncountryName_min = 2\ncountryName_max = 2\n\nstateOrProvinceName = State or Province Name (full name)\nstateOrProvinceName_default = TestCertificateStateName\nstateOrProvinceName_max = 64\n\nlocalityName = Locality Name (eg, city)\nlocalityName_default = TestCertificateLocalityName\nlocalityName_max = 64\n\norganizationName = Organization Name (eg, company)\norganizationName_default = TestCertificateOrgName\norganizationName_max = 64\n\norganizationalUnitName = Organizational Unit Name (eg, section)\norganizationalUnitName_default = TestCertificateOrgUnitName\norganizationalUnitName_max = 64\n\ncommonName = Common Name (eg, YOUR name)\ncommonName_max = 64\n\n[ v3_ca ]\n# Extensions for a typical CA\n\nsubjectKeyIdentifier=hash\nbasicConstraints = critical,CA:true\nauthorityKeyIdentifier=keyid:always,issuer:always"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light none leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"># NOT FOR PRODUCTION USE. OpenSSL configuration file for testing.</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"># For the CA policy</td></tr><tr class=""><td class="leafygreen-ui-7razhx">[ policy_match ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx">countryName = match</td></tr><tr class=""><td class="leafygreen-ui-7razhx">stateOrProvinceName = match</td></tr><tr class=""><td class="leafygreen-ui-7razhx">organizationName = match</td></tr><tr class=""><td class="leafygreen-ui-7razhx">organizationalUnitName = optional</td></tr><tr class=""><td class="leafygreen-ui-7razhx">commonName = supplied</td></tr><tr class=""><td class="leafygreen-ui-7razhx">emailAddress = optional</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">[ req ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx">default_bits = 4096</td></tr><tr class=""><td class="leafygreen-ui-7razhx">default_keyfile = myTestCertificateKey.pem ## The default private key file name.</td></tr><tr class=""><td class="leafygreen-ui-7razhx">default_md = sha256 ## Use SHA-256 for Signatures</td></tr><tr class=""><td class="leafygreen-ui-7razhx">distinguished_name = req_dn</td></tr><tr class=""><td class="leafygreen-ui-7razhx">req_extensions = v3_req</td></tr><tr class=""><td class="leafygreen-ui-7razhx">x509_extensions = v3_ca # The extensions to add to the self signed cert</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">[ v3_req ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx">subjectKeyIdentifier = hash</td></tr><tr class=""><td class="leafygreen-ui-7razhx">basicConstraints = CA:FALSE</td></tr><tr class=""><td class="leafygreen-ui-7razhx">keyUsage = critical, digitalSignature, keyEncipherment</td></tr><tr class=""><td class="leafygreen-ui-7razhx">nsComment = "OpenSSL Generated Certificate for TESTING only. NOT FOR PRODUCTION USE."</td></tr><tr class=""><td class="leafygreen-ui-7razhx">extendedKeyUsage = serverAuth, clientAuth</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">[ req_dn ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx">countryName = Country Name (2 letter code)</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx">countryName_default =</td></tr><tr class=""><td class="leafygreen-ui-7razhx">countryName_min = 2</td></tr><tr class=""><td class="leafygreen-ui-7razhx">countryName_max = 2</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">stateOrProvinceName = State or Province Name (full name)</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx">stateOrProvinceName_default = TestCertificateStateName</td></tr><tr class=""><td class="leafygreen-ui-7razhx">stateOrProvinceName_max = 64</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">localityName = Locality Name (eg, city)</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx">localityName_default = TestCertificateLocalityName</td></tr><tr class=""><td class="leafygreen-ui-7razhx">localityName_max = 64</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">organizationName = Organization Name (eg, company)</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx">organizationName_default = TestCertificateOrgName</td></tr><tr class=""><td class="leafygreen-ui-7razhx">organizationName_max = 64</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">organizationalUnitName = Organizational Unit Name (eg, section)</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx">organizationalUnitName_default = TestCertificateOrgUnitName</td></tr><tr class=""><td class="leafygreen-ui-7razhx">organizationalUnitName_max = 64</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">commonName = Common Name (eg, YOUR name)</td></tr><tr class=""><td class="leafygreen-ui-7razhx">commonName_max = 64</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">[ v3_ca ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"># Extensions for a typical CA</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">subjectKeyIdentifier=hash</td></tr><tr class=""><td class="leafygreen-ui-7razhx">basicConstraints = critical,CA:true</td></tr><tr class=""><td class="leafygreen-ui-7razhx">authorityKeyIdentifier=keyid:always,issuer:always</td></tr></tbody></table></code></pre>
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</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<em>
Optional
</em>
. You can update the default Distinguished Name (DN)
values.
</p>
</li>
</ol>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
B. Generate the Test CA PEM File
<a class="headerlink leafygreen-ui-1kepx47" href="#b.-generate-the-test-ca-pem-file" title="Permalink to this heading">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="b.-generate-the-test-ca-pem-file">
</div>
</a>
</h3>
<ol class="leafygreen-ui-rioki0" type="1">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Create the
<strong class="css-4dei7l">
test
</strong>
CA key file
<code class="file docutils literal">
<span class="pre">
mongodb-test-ca.key
</span>
</code>
.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"openssl genrsa -out mongodb-test-ca.key 4096","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">openssl genrsa -out mongodb-test-ca.key 4096</td></tr></tbody></table></code></pre>
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</div>
</div>
</div>
</div>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
This private key is used to generate valid certificates for the
CA. Although this private key, like all files in this appendix,
is intended for
<strong class="css-4dei7l">
testing
</strong>
purposes only, you should engage in good
security practices and secure this key file.
</p>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Create the CA certificate
<code class="file docutils literal">
<span class="pre">
mongod-test-ca.crt
</span>
</code>
using the
generated key file. When asked for Distinguished Name values, enter
the appropriate values for your
<strong class="css-4dei7l">
test
</strong>
CA certificate.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"openssl req -new -x509 -days 1826 -key mongodb-test-ca.key -out mongodb-test-ca.crt -config openssl-test-ca.cnf","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
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<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">openssl req -new -x509 -days 1826 -key mongodb-test-ca.key -out mongodb-test-ca.crt -config openssl-test-ca.cnf</td></tr></tbody></table></code></pre>
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</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Create the private key for the intermediate certificate.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"openssl genrsa -out mongodb-test-ia.key 4096","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">openssl genrsa -out mongodb-test-ia.key 4096</td></tr></tbody></table></code></pre>
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</div>
</div>
</div>
</div>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
This private key is used to generate valid certificates for the
intermediate authority. Although this private key, like all files
in this appendix, is intended for
<strong class="css-4dei7l">
testing
</strong>
purposes only, you
should engage in good security practices and secure this key file.
</p>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Create the certificate signing request for the intermediate
certificate. When asked for Distinguished Name values, enter the
appropriate values for your
<strong class="css-4dei7l">
test
</strong>
Intermediate Authority certificate.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"openssl req -new -key mongodb-test-ia.key -out mongodb-test-ia.csr -config openssl-test-ca.cnf","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">openssl req -new -key mongodb-test-ia.key -out mongodb-test-ia.csr -config openssl-test-ca.cnf</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Create the intermediate certificate
<code class="file docutils literal">
<span class="pre">
mongodb-test-ia.crt
</span>
</code>
.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"openssl x509 -sha256 -req -days 730 -in mongodb-test-ia.csr -CA mongodb-test-ca.crt -CAkey mongodb-test-ca.key -set_serial 01 -out mongodb-test-ia.crt -extfile openssl-test-ca.cnf -extensions v3_ca","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">openssl x509 -sha256 -req -days 730 -<span class="lg-highlight-keyword">in</span> mongodb-test-ia.csr -CA mongodb-test-ca.crt -CAkey mongodb-test-ca.key -set_serial 01 -out mongodb-test-ia.crt -extfile openssl-test-ca.cnf -extensions v3_ca</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Create the
<strong class="css-4dei7l">
test
</strong>
CA PEM file from the
<strong class="css-4dei7l">
test
</strong>
CA certificate
<code class="file docutils literal">
<span class="pre">
mongod-test-ca.crt
</span>
</code>
and
<strong class="css-4dei7l">
test
</strong>
intermediate certificate
<code class="file docutils literal">
<span class="pre">
mongodb-test-ia.crt
</span>
</code>
.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"cat mongodb-test-ia.crt mongodb-test-ca.crt > test-ca.pem","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light bash leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-built_in">cat</span> mongodb-test-ia.crt mongodb-test-ca.crt > test-ca.pem</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
</ol>
<p class="leafygreen-ui-1kp3ins">
You can use the
<strong class="css-4dei7l">
test
</strong>
PEM file when configuring
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
, or
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
for TLS/SSL
<strong class="css-4dei7l">
testing
</strong>
.
</p>
<p class="leafygreen-ui-1kp3ins">
You can use the
<strong class="css-4dei7l">
test
</strong>
intermediate authority to sign the
<strong class="css-4dei7l">
test
</strong>
certificates for both the server(s) and client(s). A single authority
must issue the certificates for both the client and the server.
</p>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/appendix/security/appendixB-openssl-server/#std-label-appendix-server-certificate">
Appendix B - OpenSSL Server Certificates for Testing Self-Managed Deployments
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/appendix/security/appendixC-openssl-client/#std-label-appendix-client-certificate">
Appendix C - OpenSSL Client Certificates for Testing Self-Managed Deployments
</a>
</p>
</li>
</ul>
</div>
</div>
</section>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/method/db.getCollectionNames/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
db.getCollectionNames()
<a class="headerlink leafygreen-ui-1kepx47" href="#db.getcollectionnames--" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="db.getcollectionnames--">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#definition" target="_self">
<span>
Definition
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#required-access" target="_self">
<span>
Required Access
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#behavior" target="_self">
<span>
Behavior
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#example" target="_self">
<span>
Example
</span>
</a>
</li>
</ul>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Definition
<a class="headerlink leafygreen-ui-1kepx47" href="#definition" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="definition">
</div>
</a>
</h2>
<dl class="method">
<dt>
<code class="leafygreen-ui-1l06pbn">
db.getCollectionNames()
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-method-db.getCollectionNames" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-method-db.getCollectionNames">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Returns an array containing the names of all collections and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/views/#std-label-views-landing-page">
views
</a>
in the current database, or if running
with access control, the names of the collections according to user's
privilege. For details, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-db.collectionnames-access" target="_self">
<span>
Required Access
<!-- -->
.
</span>
</a>
</p>
</dd>
</dl>
<span class="leafygreen-ui-1qnjd6d" id="std-label-db.collectionnames-access">
</span>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Required Access
<a class="headerlink leafygreen-ui-1kepx47" href="#required-access" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="required-access">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-db.getCollectionNames" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
db.getCollectionNames()
</code>
</span>
</a>
is equivalent to:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.runCommand(\n {\n listCollections: 1.0,\n authorizedCollections: true,\n nameOnly: true\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">runCommand</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">listCollections</span>: <span class="lg-highlight-number">1.0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">authorizedCollections</span>: <span class="lg-highlight-literal">true</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">nameOnly</span>: <span class="lg-highlight-literal">true</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</div>
</div>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For users with the required access (privileges that grant
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/privilege-actions/#mongodb-authaction-listCollections">
<code class="leafygreen-ui-1l06pbn">
listCollections
</code>
</a>
action on the database), the method
lists the names of all collections for the database.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For users without the required access, the method lists only the
collections for which the users has privileges. For example, if a
user has
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/privilege-actions/#mongodb-authaction-find">
<code class="leafygreen-ui-1l06pbn">
find
</code>
</a>
on a specific collection in a
database, the method would return just that collection.
</p>
</li>
</ul>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Behavior
<a class="headerlink leafygreen-ui-1kepx47" href="#behavior" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="behavior">
</div>
</a>
</h2>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Client Disconnection
<a class="headerlink leafygreen-ui-1kepx47" href="#client-disconnection" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="client-disconnection">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 4.2, if the client that issued
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-db.getCollectionNames" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
db.getCollectionNames()
</code>
</span>
</a>
disconnects before the operation completes, MongoDB marks
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-method-db.getCollectionNames" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
db.getCollectionNames()
</code>
</span>
</a>
for termination using
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/killOp/#mongodb-dbcommand-dbcmd.killOp">
<code class="leafygreen-ui-1l06pbn">
killOp
</code>
.
</a>
</p>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Replica Set Member State Restriction
<a class="headerlink leafygreen-ui-1kepx47" href="#replica-set-member-state-restriction" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="replica-set-member-state-restriction">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
To run on a replica set member,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/listCollections/#mongodb-dbcommand-dbcmd.listCollections">
<code class="leafygreen-ui-1l06pbn">
listCollections
</code>
</a>
operations require the member
to be in
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-states/#mongodb-replstate-replstate.PRIMARY">
<code class="leafygreen-ui-1l06pbn">
PRIMARY
</code>
</a>
or
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-states/#mongodb-replstate-replstate.SECONDARY">
<code class="leafygreen-ui-1l06pbn">
SECONDARY
</code>
</a>
state. If the member
is in another state, such as
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-states/#mongodb-replstate-replstate.STARTUP2">
<code class="leafygreen-ui-1l06pbn">
STARTUP2
</code>
</a>
, the
operation errors.
</p>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Example
<a class="headerlink leafygreen-ui-1kepx47" href="#example" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="example">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The following returns the names of all collections in the
<code class="leafygreen-ui-1l06pbn">
records
</code>
database:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"use records\ndb.getCollectionNames()","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">use records</td></tr><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">getCollectionNames</span>(<!-- -->)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The method returns the names of the collections in an array:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"[ \"employees\", \"products\", \"mylogs\", \"system.indexes\" ]","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[ <span class="lg-highlight-string">"employees"</span>, <span class="lg-highlight-string">"products"</span>, <span class="lg-highlight-string">"mylogs"</span>, <span class="lg-highlight-string">"system.indexes"</span> ]</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</section>
</section>
|
https://www.mongodb.com/docs/manual/tutorial/configure-replica-set-tag-sets/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Configure Replica Set Tag Sets
<a class="headerlink leafygreen-ui-1kepx47" href="#configure-replica-set-tag-sets" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="configure-replica-set-tag-sets">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#use-tag-sets-in-read-preference" target="_self">
<span>
Use Tag Sets in Read Preference
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#custom-multi-datacenter-write-concerns" target="_self">
<span>
Custom Multi-Datacenter Write Concerns
</span>
</a>
</li>
</ul>
</div>
<p class="leafygreen-ui-1kp3ins">
A replica set member or members can be configured with
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-configuration/#mongodb-rsconf-rsconf.members-n-.tags">
<code class="leafygreen-ui-1l06pbn">
tags
</code>
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ \"<tag1>\": \"<string1>\", \"<tag2>\": \"<string2>\",... }","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1agdxuk" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"<tag1>"</span>: <span class="lg-highlight-string">"<string1>"</span>, <span class="lg-highlight-string">"<tag2>"</span>: <span class="lg-highlight-string">"<string2>"</span>,<!-- -->...<!-- --> }</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
For read operations, you can specify a tag set in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/read-preference/#std-label-replica-set-read-preference">
read
preferences
</a>
to help direct read
operations to members that have specific tag(s).
</p>
<p class="leafygreen-ui-1kp3ins">
For write operations, you can use the tags to create a custom
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/write-concern/#std-label-write-concern">
write concern
<!-- -->
.
</a>
</p>
<span class="leafygreen-ui-1qnjd6d" id="std-label-configure-read-pref-tags">
</span>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Use Tag Sets in Read Preference
<a class="headerlink leafygreen-ui-1kepx47" href="#use-tag-sets-in-read-preference" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="use-tag-sets-in-read-preference">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
If a replica set member or members are associated with
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-configuration/#mongodb-rsconf-rsconf.members-n-.tags">
<code class="leafygreen-ui-1l06pbn">
tags
</code>
</a>
, you can specify a tag set in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/read-preference/#std-label-read-preference">
read
preference
</a>
to target those members. A tag
set is an array of documents, where each document contains the tag and
value pair(s). The specifications are tried in order until a match is
found. Once found, that specification is used to find all eligible
matching members.
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
You cannot specify a tag set when specifying read preference mode
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/read-preference/#mongodb-readmode-primary">
<code class="leafygreen-ui-1l06pbn">
primary
</code>
.
</a>
</p>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
For example, a replica set has the following
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-configuration/#std-label-replica-set-configuration-document">
replica set
configuration
</a>
(some of the fields
have been omitted for brevity):
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n \"_id\" : \"rs0\",\n \"version\" : 1,\n \"protocolVersion\" : NumberLong(1),\n \"writeConcernMajorityJournalDefault\" : true,\n \"members\" : [\n { \"_id\" : 0, \"host\" : \"mongodb0.example.net:27017\", ..., \"tags\": { }, ... },\n { \"_id\" : 1, \"host\" : \"mongodb1.example.net:27017\", ..., \"tags\": { }, ... },\n { \"_id\" : 2, \"host\" : \"mongodb2.example.net:27017\", ..., \"tags\": { }, ... }\n ],\n \"settings\" : {\n ...\n }\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"rs0"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"version"</span> <!-- -->: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"protocolVersion"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">NumberLong</span>(<span class="lg-highlight-number">1</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"writeConcernMajorityJournalDefault"</span> <!-- -->: <span class="lg-highlight-literal">true</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"members"</span> <!-- -->: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">0</span>, <span class="lg-highlight-string">"host"</span> <!-- -->: <span class="lg-highlight-string">"mongodb0.example.net:27017"</span>, <!-- -->...<!-- -->, <span class="lg-highlight-string">"tags"</span>: <!-- -->{ <!-- -->}<!-- -->, <!-- -->...<!-- --> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-string">"host"</span> <!-- -->: <span class="lg-highlight-string">"mongodb1.example.net:27017"</span>, <!-- -->...<!-- -->, <span class="lg-highlight-string">"tags"</span>: <!-- -->{ <!-- -->}<!-- -->, <!-- -->...<!-- --> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-string">"host"</span> <!-- -->: <span class="lg-highlight-string">"mongodb2.example.net:27017"</span>, <!-- -->...<!-- -->, <span class="lg-highlight-string">"tags"</span>: <!-- -->{ <!-- -->}<!-- -->, <!-- -->...<!-- --> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"settings"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<ol class="leafygreen-ui-rioki0" type="1">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<strong>
Add tags to the members.
</strong>
</p>
<p class="leafygreen-ui-1kp3ins">
Connect
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
to the replica set and use
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/rs.reconfig/#mongodb-method-rs.reconfig">
<code class="leafygreen-ui-1l06pbn">
rs.reconfig()
</code>
</a>
to add tags to the members:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"conf = rs.conf();\nconf.members[0].tags = { \"dc\": \"east\", \"usage\": \"production\" };\nconf.members[1].tags = { \"dc\": \"east\", \"usage\": \"reporting\" };\nconf.members[2].tags = { \"dc\": \"west\", \"usage\": \"production\" };\nrs.reconfig(conf);","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">conf <!-- -->= <!-- -->rs.<span class="lg-highlight-title lg-highlight-function">conf</span>(<!-- -->)<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">conf.<span class="lg-highlight-property">members</span>[<span class="lg-highlight-number">0</span>].<span class="lg-highlight-property">tags</span> <!-- -->= <!-- -->{ <span class="lg-highlight-string">"dc"</span>: <span class="lg-highlight-string">"east"</span>, <span class="lg-highlight-string">"usage"</span>: <span class="lg-highlight-string">"production"</span> }<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">conf.<span class="lg-highlight-property">members</span>[<span class="lg-highlight-number">1</span>].<span class="lg-highlight-property">tags</span> <!-- -->= <!-- -->{ <span class="lg-highlight-string">"dc"</span>: <span class="lg-highlight-string">"east"</span>, <span class="lg-highlight-string">"usage"</span>: <span class="lg-highlight-string">"reporting"</span> }<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">conf.<span class="lg-highlight-property">members</span>[<span class="lg-highlight-number">2</span>].<span class="lg-highlight-property">tags</span> <!-- -->= <!-- -->{ <span class="lg-highlight-string">"dc"</span>: <span class="lg-highlight-string">"west"</span>, <span class="lg-highlight-string">"usage"</span>: <span class="lg-highlight-string">"production"</span> }<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">rs.<span class="lg-highlight-title lg-highlight-function">reconfig</span>(<!-- -->conf)<!-- -->;</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<strong>
Verify the replica set configuration.
</strong>
</p>
<p class="leafygreen-ui-1kp3ins">
Run
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/rs.conf/#mongodb-method-rs.conf">
<code class="leafygreen-ui-1l06pbn">
rs.conf()
</code>
</a>
to verify the replica set configuration
(some of the fields have been omitted for brevity). The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/rs.conf/#mongodb-method-rs.conf">
<code class="leafygreen-ui-1l06pbn">
rs.conf()
</code>
</a>
returns a document similar to the following:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n \"_id\" : \"rs0\",\n \"version\" : 2,\n \"protocolVersion\" : NumberLong(1),\n \"writeConcernMajorityJournalDefault\" : true,\n \"members\" : [\n {\n \"_id\" : 0,\n \"host\" : \"mongodb0.example.net:27017\",\n ...\n \"tags\" : {\n \"dc\": \"east\",\n \"usage\": \"production\"\n },\n ...\n },\n {\n \"_id\" : 1,\n \"host\" : \"mongodb1.example.net:27017\",\n ...\n \"tags\" : {\n \"dc\": \"east\",\n \"usage\": \"reporting\"\n },\n ...\n },\n {\n \"_id\" : 2,\n \"host\" : \"mongodb2.example.net:27017\",\n ...\n \"tags\" : {\n \"dc\": \"west\",\n \"usage\": \"production\"\n },\n ...\n }\n ],\n \"settings\" : {\n ...\n }\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"rs0"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"version"</span> <!-- -->: <span class="lg-highlight-number">2</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"protocolVersion"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">NumberLong</span>(<span class="lg-highlight-number">1</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"writeConcernMajorityJournalDefault"</span> <!-- -->: <span class="lg-highlight-literal">true</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"members"</span> <!-- -->: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"host"</span> <!-- -->: <span class="lg-highlight-string">"mongodb0.example.net:27017"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"tags"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"dc"</span>: <span class="lg-highlight-string">"east"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"usage"</span>: <span class="lg-highlight-string">"production"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"host"</span> <!-- -->: <span class="lg-highlight-string">"mongodb1.example.net:27017"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"tags"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"dc"</span>: <span class="lg-highlight-string">"east"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"usage"</span>: <span class="lg-highlight-string">"reporting"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">2</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"host"</span> <!-- -->: <span class="lg-highlight-string">"mongodb2.example.net:27017"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"tags"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"dc"</span>: <span class="lg-highlight-string">"west"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"usage"</span>: <span class="lg-highlight-string">"production"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"settings"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<strong>
Specify tag sets in the read preference.
</strong>
</p>
<p class="leafygreen-ui-1kp3ins">
To direct read operations to the secondaries tagged with a particular
tag(s), in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/mongo/#mongodb-binary-bin.mongo">
<code class="leafygreen-ui-1l06pbn">
mongo
</code>
</a>
shell connected to the replica set,
you can use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/cursor.readPref/#mongodb-method-cursor.readPref">
<code class="leafygreen-ui-1l06pbn">
readPref()
</code>
</a>
method to specify the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/read-preference/#std-label-read-pref-modes-summary">
read preference mode
</a>
and the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/read-preference-tags/#std-label-replica-set-read-preference-tag-sets">
tag
set
</a>
. For example,
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
To direct read operations to the secondary tagged with
<em>
both
</em>
<code class="leafygreen-ui-1l06pbn">
"dc": "east"
</code>
and
<code class="leafygreen-ui-1l06pbn">
"usage": "production"
</code>
, include the
following tag set:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.collection.find({}).readPref( \"secondary\", [ { \"dc\": \"east\", \"usage\": \"production\" } ] )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">collection</span>.<span class="lg-highlight-title lg-highlight-function">find</span>(<!-- -->{<!-- -->}).<span class="lg-highlight-title lg-highlight-function">readPref</span>( <span class="lg-highlight-string">"secondary"</span>, <!-- -->[ <!-- -->{ <span class="lg-highlight-string">"dc"</span>: <span class="lg-highlight-string">"east"</span>, <span class="lg-highlight-string">"usage"</span>: <span class="lg-highlight-string">"production"</span> } ] )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
To direct a read operation to the secondaries tagged with
<code class="leafygreen-ui-1l06pbn">
"dc":
"east"
</code>
, and if not found, to secondaries tagged with
<code class="leafygreen-ui-1l06pbn">
"usage": "production"
</code>
, include the following tag set:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.collection.find({}).readPref( \"secondary\", [ { \"dc\": \"east\"}, { \"usage\": \"production\" } ] )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">collection</span>.<span class="lg-highlight-title lg-highlight-function">find</span>(<!-- -->{<!-- -->}).<span class="lg-highlight-title lg-highlight-function">readPref</span>( <span class="lg-highlight-string">"secondary"</span>, <!-- -->[ <!-- -->{ <span class="lg-highlight-string">"dc"</span>: <span class="lg-highlight-string">"east"</span>}<!-- -->, <!-- -->{ <span class="lg-highlight-string">"usage"</span>: <span class="lg-highlight-string">"production"</span> } ] )</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
</ul>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/Mongo.setReadPref/#mongodb-method-Mongo.setReadPref">
<code class="leafygreen-ui-1l06pbn">
Mongo.setReadPref()
</code>
</a>
</p>
</div>
</div>
</li>
</ol>
<span class="leafygreen-ui-1qnjd6d" id="std-label-configure-custom-write-concern">
</span>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Custom Multi-Datacenter Write Concerns
<a class="headerlink leafygreen-ui-1kepx47" href="#custom-multi-datacenter-write-concerns" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="custom-multi-datacenter-write-concerns">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
If a replica set member or members are associated with
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-configuration/#mongodb-rsconf-rsconf.members-n-.tags">
<code class="leafygreen-ui-1l06pbn">
tags
</code>
</a>
, you can configure the replica set's
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-configuration/#mongodb-rsconf-rsconf.settings.getLastErrorModes">
<code class="leafygreen-ui-1l06pbn">
settings.getLastErrorModes
</code>
</a>
setting to create a custom write
concern.
</p>
<p class="leafygreen-ui-1kp3ins">
Given a five member replica set with members in two data centers:
</p>
<ol class="leafygreen-ui-rioki0" type="1">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
a facility
<code class="leafygreen-ui-1l06pbn">
VA
</code>
tagged
<code class="leafygreen-ui-1l06pbn">
dc_va
</code>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
a facility
<code class="leafygreen-ui-1l06pbn">
CA
</code>
tagged
<code class="leafygreen-ui-1l06pbn">
dc_ca
</code>
</p>
</li>
</ol>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n \"_id\" : \"rs0\",\n \"version\" : 1,\n \"protocolVersion\" : NumberLong(1),\n \"writeConcernMajorityJournalDefault\" : true,\n \"members\" : [\n { \"_id\" : 0, \"host\" : \"mongodb0.example.net:27017\", ..., \"tags\": { }, ... },\n { \"_id\" : 1, \"host\" : \"mongodb1.example.net:27017\", ..., \"tags\": { }, ... },\n { \"_id\" : 2, \"host\" : \"mongodb2.example.net:27017\", ..., \"tags\": { }, ... }\n { \"_id\" : 3, \"host\" : \"mongodb3.example.net:27017\", ..., \"tags\": { }, ... }\n { \"_id\" : 4, \"host\" : \"mongodb4.example.net:27017\", ..., \"tags\": { }, ... }\n ],\n \"settings\" : {\n ...\n }\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-string">"rs0"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"version"</span> <!-- -->: <span class="lg-highlight-number">1</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"protocolVersion"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">NumberLong</span>(<span class="lg-highlight-number">1</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"writeConcernMajorityJournalDefault"</span> <!-- -->: <span class="lg-highlight-literal">true</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"members"</span> <!-- -->: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">0</span>, <span class="lg-highlight-string">"host"</span> <!-- -->: <span class="lg-highlight-string">"mongodb0.example.net:27017"</span>, <!-- -->...<!-- -->, <span class="lg-highlight-string">"tags"</span>: <!-- -->{ <!-- -->}<!-- -->, <!-- -->...<!-- --> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-string">"host"</span> <!-- -->: <span class="lg-highlight-string">"mongodb1.example.net:27017"</span>, <!-- -->...<!-- -->, <span class="lg-highlight-string">"tags"</span>: <!-- -->{ <!-- -->}<!-- -->, <!-- -->...<!-- --> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-string">"host"</span> <!-- -->: <span class="lg-highlight-string">"mongodb2.example.net:27017"</span>, <!-- -->...<!-- -->, <span class="lg-highlight-string">"tags"</span>: <!-- -->{ <!-- -->}<!-- -->, <!-- -->...<!-- --> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">3</span>, <span class="lg-highlight-string">"host"</span> <!-- -->: <span class="lg-highlight-string">"mongodb3.example.net:27017"</span>, <!-- -->...<!-- -->, <span class="lg-highlight-string">"tags"</span>: <!-- -->{ <!-- -->}<!-- -->, <!-- -->...<!-- --> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">4</span>, <span class="lg-highlight-string">"host"</span> <!-- -->: <span class="lg-highlight-string">"mongodb4.example.net:27017"</span>, <!-- -->...<!-- -->, <span class="lg-highlight-string">"tags"</span>: <!-- -->{ <!-- -->}<!-- -->, <!-- -->...<!-- --> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"settings"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</button>
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</div>
</div>
</div>
<ol class="leafygreen-ui-rioki0" type="1">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<strong>
Add tags to the replica set members.
</strong>
</p>
<p class="leafygreen-ui-1kp3ins">
Connect
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
to the replica set and use
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/rs.reconfig/#mongodb-method-rs.reconfig">
<code class="leafygreen-ui-1l06pbn">
rs.reconfig()
</code>
</a>
to add tags to the members:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"conf = rs.conf();\nconf.members[0].tags = { \"dc_va\": \"rack1\"};\nconf.members[1].tags = { \"dc_va\": \"rack2\"};\nconf.members[2].tags = { \"dc_ca\": \"rack1\"};\nconf.members[3].tags = { \"dc_ca\": \"rack2\"};\nconf.members[4].tags = { \"dc_va\": \"rack1\"};\nrs.reconfig(conf);","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">conf <!-- -->= <!-- -->rs.<span class="lg-highlight-title lg-highlight-function">conf</span>(<!-- -->)<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">conf.<span class="lg-highlight-property">members</span>[<span class="lg-highlight-number">0</span>].<span class="lg-highlight-property">tags</span> <!-- -->= <!-- -->{ <span class="lg-highlight-string">"dc_va"</span>: <span class="lg-highlight-string">"rack1"</span>}<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">conf.<span class="lg-highlight-property">members</span>[<span class="lg-highlight-number">1</span>].<span class="lg-highlight-property">tags</span> <!-- -->= <!-- -->{ <span class="lg-highlight-string">"dc_va"</span>: <span class="lg-highlight-string">"rack2"</span>}<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">conf.<span class="lg-highlight-property">members</span>[<span class="lg-highlight-number">2</span>].<span class="lg-highlight-property">tags</span> <!-- -->= <!-- -->{ <span class="lg-highlight-string">"dc_ca"</span>: <span class="lg-highlight-string">"rack1"</span>}<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">conf.<span class="lg-highlight-property">members</span>[<span class="lg-highlight-number">3</span>].<span class="lg-highlight-property">tags</span> <!-- -->= <!-- -->{ <span class="lg-highlight-string">"dc_ca"</span>: <span class="lg-highlight-string">"rack2"</span>}<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">conf.<span class="lg-highlight-property">members</span>[<span class="lg-highlight-number">4</span>].<span class="lg-highlight-property">tags</span> <!-- -->= <!-- -->{ <span class="lg-highlight-string">"dc_va"</span>: <span class="lg-highlight-string">"rack1"</span>}<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">rs.<span class="lg-highlight-title lg-highlight-function">reconfig</span>(<!-- -->conf)<!-- -->;</td></tr></tbody></table></code></pre>
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</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<strong>
Create a custom write concern.
</strong>
</p>
<p class="leafygreen-ui-1kp3ins">
In the replica set configuration, define a custom write concern in
the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-configuration/#mongodb-rsconf-rsconf.settings.getLastErrorModes">
<code class="leafygreen-ui-1l06pbn">
settings.getLastErrorModes
</code>
</a>
setting. For example, the
following defines the custom write concern
<code class="leafygreen-ui-1l06pbn">
MultipleDC
</code>
that
requires the write to propagate to two members with
<em>
different
</em>
<code class="leafygreen-ui-1l06pbn">
dc_va
</code>
tag values and one member with any
<code class="leafygreen-ui-1l06pbn">
dc_ca
</code>
tag value.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"conf = rs.conf();\nconf.settings = { getLastErrorModes: { MultipleDC : { \"dc_va\": 2, \"dc_ca\": 1 } } };\nrs.reconfig(conf);","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">conf <!-- -->= <!-- -->rs.<span class="lg-highlight-title lg-highlight-function">conf</span>(<!-- -->)<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">conf.<span class="lg-highlight-property">settings</span> <!-- -->= <!-- -->{ <span class="lg-highlight-attr">getLastErrorModes</span>: <!-- -->{ <span class="lg-highlight-title lg-highlight-class">MultipleDC</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"dc_va"</span>: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-string">"dc_ca"</span>: <span class="lg-highlight-number">1</span> } } }<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">rs.<span class="lg-highlight-title lg-highlight-function">reconfig</span>(<!-- -->conf)<!-- -->;</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
MultipleDC
</code>
write concern is not satisfied if the write
propagates to two members with the same
<code class="leafygreen-ui-1l06pbn">
"dc_va"
</code>
tag. For
example, if the write has only propagated to
<code class="leafygreen-ui-1l06pbn">
members[0]
</code>
and
<code class="leafygreen-ui-1l06pbn">
members[4]
</code>
,
<code class="leafygreen-ui-1l06pbn">
"dc_va": 2
</code>
is not satisfied since they have
the same tag value
<code class="leafygreen-ui-1l06pbn">
"rack1"
</code>
.
</p>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<strong>
Use the custom write concern.
</strong>
</p>
<p class="leafygreen-ui-1kp3ins">
To use the custom write concern, pass in the write concern name to
the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/write-concern/#std-label-wc-w">
<code class="leafygreen-ui-1l06pbn">
w
</code>
Option
</a>
in the write concern:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.collection.insertOne(\n { id: \"xyz\", status: \"A\" },\n { writeConcern: { w: \"MultipleDC\" } }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">collection</span>.<span class="lg-highlight-title lg-highlight-function">insertOne</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">id</span>: <span class="lg-highlight-string">"xyz"</span>, <span class="lg-highlight-attr">status</span>: <span class="lg-highlight-string">"A"</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">writeConcern</span>: <!-- -->{ <span class="lg-highlight-attr">w</span>: <span class="lg-highlight-string">"MultipleDC"</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
</ol>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/operator/aggregation/exp/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
$exp (aggregation)
<a class="headerlink leafygreen-ui-1kepx47" href="#-exp--aggregation-" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="-exp--aggregation-">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#definition" target="_self">
<span>
Definition
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#behavior" target="_self">
<span>
Behavior
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#example" target="_self">
<span>
Example
</span>
</a>
</li>
</ul>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Definition
<a class="headerlink leafygreen-ui-1kepx47" href="#definition" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="definition">
</div>
</a>
</h2>
<dl class="expression">
<dt>
<code class="leafygreen-ui-1l06pbn">
$exp
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-expression-exp.-exp" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-expression-exp.-exp">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Raises Euler's number (i.e.
<em>
e
</em>
) to the specified exponent and
returns the result.
</p>
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-expression-exp.-exp" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$exp
</code>
</span>
</a>
has the following syntax:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ $exp: <exponent> }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-attr">$exp</span>: <<!-- -->exponent<!-- -->> <!-- -->}</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
<exponent>
</code>
expression can be any valid
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/#std-label-aggregation-expressions">
expression
</a>
as long as it resolves to a number. For
more information on expressions, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/#std-label-aggregation-expressions">
Expression Operators
<!-- -->
.
</a>
</p>
</dd>
</dl>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Behavior
<a class="headerlink leafygreen-ui-1kepx47" href="#behavior" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="behavior">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The default return type is a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/mongodb-extended-json/#mongodb-bsontype-Double">
<code class="leafygreen-ui-1l06pbn">
double
</code>
</a>
. If at least
one operand is a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/mongodb-extended-json/#mongodb-bsontype-Decimal128">
<code class="leafygreen-ui-1l06pbn">
decimal
</code>
</a>
, then the return
type is a decimal.
</p>
<p class="leafygreen-ui-1kp3ins">
If the argument resolves to a value of
<code class="leafygreen-ui-1l06pbn">
null
</code>
or refers to a field that is
missing,
<code class="leafygreen-ui-1l06pbn">
$exp
</code>
returns
<code class="leafygreen-ui-1l06pbn">
null
</code>
. If the argument resolves to
<code class="leafygreen-ui-1l06pbn">
NaN
</code>
,
<code class="leafygreen-ui-1l06pbn">
$exp
</code>
returns
<code class="leafygreen-ui-1l06pbn">
NaN
</code>
.
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:85%"/>
<col style="width:15%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Example
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Results
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
{ $exp: 0 }
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
1
</code>
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
{ $exp: 2 }
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
7.38905609893065
</code>
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
{ $exp: -2 }
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
0.1353352832366127
</code>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Example
<a class="headerlink leafygreen-ui-1kepx47" href="#example" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="example">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
A collection named
<code class="leafygreen-ui-1l06pbn">
accounts
</code>
contains the following documents:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.accounts.insertMany( [\n { _id: 1, interestRate: .08, presentValue: 10000 },\n { _id: 2, interestRate: .0825, presentValue: 250000 },\n { _id: 3, interestRate: .0425, presentValue: 1000 }\n] )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">accounts</span>.<span class="lg-highlight-title lg-highlight-function">insertMany</span>( <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-attr">interestRate</span>: <span class="lg-highlight-number">.08</span>, <span class="lg-highlight-attr">presentValue</span>: <span class="lg-highlight-number">10000</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-attr">interestRate</span>: <span class="lg-highlight-number">.0825</span>, <span class="lg-highlight-attr">presentValue</span>: <span class="lg-highlight-number">250000</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">3</span>, <span class="lg-highlight-attr">interestRate</span>: <span class="lg-highlight-number">.0425</span>, <span class="lg-highlight-attr">presentValue</span>: <span class="lg-highlight-number">1000</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">] )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The following example calculates the effective interest rate for
continuous compounding:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.accounts.aggregate( [ { $project: { effectiveRate: { $subtract: [ { $exp: \"$interestRate\"}, 1 ] } } } ] )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">accounts</span>.<span class="lg-highlight-title lg-highlight-function">aggregate</span>( <!-- -->[ <!-- -->{ <span class="lg-highlight-attr">$project</span>: <!-- -->{ <span class="lg-highlight-attr">effectiveRate</span>: <!-- -->{ <span class="lg-highlight-attr">$subtract</span>: <!-- -->[ <!-- -->{ <span class="lg-highlight-attr">$exp</span>: <span class="lg-highlight-string">"$interestRate"</span>}<!-- -->, <span class="lg-highlight-number">1</span> ] } } } ] )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The operation returns the following results:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ \"_id\" : 1, \"effectiveRate\" : 0.08328706767495864 }\n{ \"_id\" : 2, \"effectiveRate\" : 0.08599867343905654 }\n{ \"_id\" : 3, \"effectiveRate\" : 0.04341605637367807 }","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-string">"effectiveRate"</span> <!-- -->: <span class="lg-highlight-number">0.08328706767495864</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-string">"effectiveRate"</span> <!-- -->: <span class="lg-highlight-number">0.08599867343905654</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-string">"_id"</span> <!-- -->: <span class="lg-highlight-number">3</span>, <span class="lg-highlight-string">"effectiveRate"</span> <!-- -->: <span class="lg-highlight-number">0.04341605637367807</span> }</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/command/currentOp/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
currentOp
<a class="headerlink leafygreen-ui-1kepx47" href="#currentop" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="currentop">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#definition" target="_self">
<span>
Definition
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#compatibility" target="_self">
<span>
Compatibility
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#syntax" target="_self">
<span>
Syntax
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#behavior" target="_self">
<span>
Behavior
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#access-control" target="_self">
<span>
Access Control
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#examples" target="_self">
<span>
Examples
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#output-example" target="_self">
<span>
Output Example
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#specific-output-examples" target="_self">
<span>
Specific Output Examples
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#output-fields" target="_self">
<span>
Output Fields
</span>
</a>
</li>
</ul>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Definition
<a class="headerlink leafygreen-ui-1kepx47" href="#definition" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="definition">
</div>
</a>
</h2>
<dl class="dbcommand">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-dbcommand-dbcmd.currentOp" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-dbcommand-dbcmd.currentOp">
</div>
</a>
</dt>
<dd>
<div>
<p>
<em>
Deprecated
<!-- -->
since version
<!-- -->
6.2
</em>
.
</p>
</div>
<p class="leafygreen-ui-1kp3ins">
In versions 6.2 and later use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/currentOp/#mongodb-pipeline-pipe.-currentOp">
<code class="leafygreen-ui-1l06pbn">
$currentOp
</code>
</a>
aggregation
stage.
</p>
<p class="leafygreen-ui-1kp3ins">
Returns a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-document">
document
</a>
that contains information on in-progress
operations for the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
instance.
</p>
<p class="leafygreen-ui-1kp3ins">
Use the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/currentOp/#mongodb-pipeline-pipe.-currentOp">
<code class="leafygreen-ui-1l06pbn">
$currentOp
</code>
</a>
aggregation stage instead
of the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.currentOp" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
currentOp
</code>
</span>
</a>
command and its
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
helper method
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.currentOp/#mongodb-method-db.currentOp">
<code class="leafygreen-ui-1l06pbn">
db.currentOp()
</code>
.
</a>
</p>
</dd>
</dl>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Compatibility
<a class="headerlink leafygreen-ui-1kepx47" href="#compatibility" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="compatibility">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
This command is available in deployments hosted in the following environments:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas?tck=docs_server" target="_self">
<span>
MongoDB Atlas
</span>
</a>
: The fully
managed service for MongoDB deployments in the cloud
</p>
</li>
</ul>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
This command is supported in all MongoDB Atlas clusters.
For information on Atlas support for all commands, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/atlas/unsupported-commands/" target="_self">
<span>
Unsupported Commands
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/install-enterprise/#std-label-install-mdb-enterprise">
MongoDB Enterprise
</a>
: The
subscription-based, self-managed version of MongoDB
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/administration/install-community/#std-label-install-mdb-community-edition">
MongoDB Community
</a>
: The
source-available, free-to-use, and self-managed version of MongoDB
</p>
</li>
</ul>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Syntax
<a class="headerlink leafygreen-ui-1kepx47" href="#syntax" title="Permalink to this heading">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="syntax">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The command has the following syntax:
</p>
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{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand(\n {\n currentOp: 1\n }\n)","programmingLanguage":"JavaScript"}
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<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">currentOp</span>: <span class="lg-highlight-number">1</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 5.0, the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/currentOp/#mongodb-pipeline-pipe.-currentOp">
<code class="leafygreen-ui-1l06pbn">
$currentOp
</code>
</a>
aggregation
stage is used when running the helper method
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.currentOp/#mongodb-method-db.currentOp">
<code class="leafygreen-ui-1l06pbn">
db.currentOp()
</code>
</a>
with
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
.
</span>
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
Given this, in the 5.0 version of the shell and with mongosh,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.currentOp/#mongodb-method-db.currentOp">
<code class="leafygreen-ui-1l06pbn">
db.currentOp()
</code>
</a>
result sets are not subject to the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/limits/#std-label-limit-bson-document-size">
16MB BSON document return size
</a>
document return size limit for documents of the previous legacy
<code class="leafygreen-ui-1l06pbn">
mongo
</code>
versions.
</p>
</div>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Behavior
<a class="headerlink leafygreen-ui-1kepx47" href="#behavior" title="Permalink to this heading">
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<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="behavior">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
currentOp
</code>
must run against the
<code class="leafygreen-ui-1l06pbn">
admin
</code>
database, and
it can accept several optional fields.
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:15%"/>
<col style="width:85%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Field
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
"$ownOps"
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Boolean. If set to
<code class="leafygreen-ui-1l06pbn">
true
</code>
, returns information on the current user's
operations only.
</p>
<p class="leafygreen-ui-1kp3ins">
On
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
instances, users are always authorized to run
<code class="leafygreen-ui-1l06pbn">
currentOp
</code>
with
<code class="leafygreen-ui-1l06pbn">
"$ownOps": true
</code>
to view their own
operations. See
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-currentOp-access-control" target="_self">
<span>
access control
<!-- -->
.
</span>
</a>
</p>
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
"$all"
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Boolean. If set to
<code class="leafygreen-ui-1l06pbn">
true
</code>
, returns information on all operations,
including operations on idle connections and system operations.
</p>
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
"$all": true
</code>
overrides any output field filters.
</p>
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<filter>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Specify filter conditions on the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-currentOp-output-fields" target="_self">
<span>
Output Fields
</span>
</a>
.
See
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-currentOp-examples" target="_self">
<span>
Examples
<!-- -->
.
</span>
</a>
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
comment
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Optional. A user-provided comment to attach to this command. Once set, this
comment appears alongside records of this command in the following
locations:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/log-messages/#std-label-log-messages-ref">
mongod log messages
</a>
, in the
<code class="leafygreen-ui-1l06pbn">
attr.command.cursor.comment
</code>
field.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/database-profiler/#std-label-profiler">
Database profiler
</a>
output, in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/database-profiler/#mongodb-data-system.profile.command">
<code class="leafygreen-ui-1l06pbn">
command.comment
</code>
</a>
field.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.currentOp" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
currentOp
</code>
</span>
</a>
output, in the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.command" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
command.comment
</code>
</span>
</a>
field.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
A comment can be any valid
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/bson-types/#std-label-bson-types">
BSON type
</a>
(string, integer, object, array, etc).
</p>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
currentOp
</code>
and the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/database-profiler/#std-label-profiler">
database profiler
</a>
report
the same basic diagnostic information for CRUD operations, including
the following:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/aggregate/#mongodb-dbcommand-dbcmd.aggregate">
<code class="leafygreen-ui-1l06pbn">
aggregate
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/count/#mongodb-dbcommand-dbcmd.count">
<code class="leafygreen-ui-1l06pbn">
count
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/delete/#mongodb-dbcommand-dbcmd.delete">
<code class="leafygreen-ui-1l06pbn">
delete
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/distinct/#mongodb-dbcommand-dbcmd.distinct">
<code class="leafygreen-ui-1l06pbn">
distinct
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
find
</code>
(
<a class="leafygreen-ui-tqgtui" href="/docs/manual/legacy-opcodes/#std-label-wire-op-query">
OP_QUERY
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/find/#mongodb-dbcommand-dbcmd.find">
<code class="leafygreen-ui-1l06pbn">
command
</code>
)
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/findAndModify/#mongodb-dbcommand-dbcmd.findAndModify">
<code class="leafygreen-ui-1l06pbn">
findAndModify
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
getMore
</code>
(
<a class="leafygreen-ui-tqgtui" href="/docs/manual/legacy-opcodes/#std-label-wire-op-query">
OP_GET_MORE
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/getMore/#mongodb-dbcommand-dbcmd.getMore">
<code class="leafygreen-ui-1l06pbn">
command
</code>
)
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/insert/#mongodb-dbcommand-dbcmd.insert">
<code class="leafygreen-ui-1l06pbn">
insert
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/mapReduce/#mongodb-dbcommand-dbcmd.mapReduce">
<code class="leafygreen-ui-1l06pbn">
mapReduce
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/update/#mongodb-dbcommand-dbcmd.update">
<code class="leafygreen-ui-1l06pbn">
update
</code>
</a>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
These operations are also included in the logging of
slow queries. See
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-operationProfiling.slowOpThresholdMs">
<code class="leafygreen-ui-1l06pbn">
slowOpThresholdMs
</code>
</a>
for
more information about slow query logging.
</p>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Redaction
<a class="headerlink leafygreen-ui-1kepx47" href="#redaction" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="redaction">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
When using
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/queryable-encryption/#std-label-qe-manual-feature-qe">
Queryable Encryption
</a>
,
<code class="leafygreen-ui-1l06pbn">
currentOp
</code>
operations with the
<code class="leafygreen-ui-1l06pbn">
encryptionInformation
</code>
option
redact certain information:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The output omits all fields after
<code class="leafygreen-ui-1l06pbn">
"command"
</code>
.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The output redacts
<code class="leafygreen-ui-1l06pbn">
"command"
</code>
to include only the first element,
<code class="leafygreen-ui-1l06pbn">
$comment
</code>
, and
<code class="leafygreen-ui-1l06pbn">
$db
</code>
.
</p>
</li>
</ul>
<span class="leafygreen-ui-1qnjd6d" id="std-label-currentOp-access-control">
</span>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Access Control
<a class="headerlink leafygreen-ui-1kepx47" href="#access-control" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="access-control">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
On systems running with
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/configuration-options/#mongodb-setting-security.authorization">
<code class="leafygreen-ui-1l06pbn">
authorization
</code>
</a>
, the user
must have access that includes the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/privilege-actions/#mongodb-authaction-inprog">
<code class="leafygreen-ui-1l06pbn">
inprog
</code>
</a>
privilege
action.
</p>
<p class="leafygreen-ui-1kp3ins">
Users can use
<code class="leafygreen-ui-1l06pbn">
$ownOps
</code>
on
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongod/#mongodb-binary-bin.mongod">
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
</a>
instances to view their own
operations without the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/privilege-actions/#mongodb-authaction-inprog">
<code class="leafygreen-ui-1l06pbn">
inprog
</code>
</a>
privilege action.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand( { currentOp: 1, \"$ownOps\": 1 } )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>( <!-- -->{ <span class="lg-highlight-attr">currentOp</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-string">"$ownOps"</span>: <span class="lg-highlight-number">1</span> } )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</button>
</div>
</div>
</div>
</div>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/tutorial/manage-users-and-roles/#std-label-create-role-to-manage-ops">
Create a Role to Manage Current Operations
</a>
</p>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-currentOp-examples">
</span>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Examples
<a class="headerlink leafygreen-ui-1kepx47" href="#examples" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="examples">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The following examples use the
<code class="leafygreen-ui-1l06pbn">
currentOp
</code>
command with
various query documents to filter the output.
</p>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Display All Current Operations
<a class="headerlink leafygreen-ui-1kepx47" href="#display-all-current-operations" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="display-all-current-operations">
</div>
</a>
</h3>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand(\n {\n currentOp: true,\n \"$all\": true\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">currentOp</span>: <span class="lg-highlight-literal">true</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"$all"</span>: <span class="lg-highlight-literal">true</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Write Operations Waiting for a Lock
<a class="headerlink leafygreen-ui-1kepx47" href="#write-operations-waiting-for-a-lock" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="write-operations-waiting-for-a-lock">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The following example returns information on all write operations that
are waiting for a lock:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand(\n {\n currentOp: true,\n \"waitingForLock\" : true,\n $or: [\n { \"op\" : { \"$in\" : [ \"insert\", \"update\", \"remove\" ] } },\n { \"command.findandmodify\": { $exists: true } }\n ]\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">currentOp</span>: <span class="lg-highlight-literal">true</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"waitingForLock"</span> <!-- -->: <span class="lg-highlight-literal">true</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">$or</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"op"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"$in"</span> <!-- -->: <!-- -->[ <span class="lg-highlight-string">"insert"</span>, <span class="lg-highlight-string">"update"</span>, <span class="lg-highlight-string">"remove"</span> ] } }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-string">"command.findandmodify"</span>: <!-- -->{ <span class="lg-highlight-attr">$exists</span>: <span class="lg-highlight-literal">true</span> } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Active Operations with no Yields
<a class="headerlink leafygreen-ui-1kepx47" href="#active-operations-with-no-yields" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="active-operations-with-no-yields">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The following example returns information on all active running
operations that have never yielded:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand(\n {\n currentOp: true,\n \"active\" : true,\n \"numYields\" : 0,\n \"waitingForLock\" : false\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">currentOp</span>: <span class="lg-highlight-literal">true</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"active"</span> <!-- -->: <span class="lg-highlight-literal">true</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"numYields"</span> <!-- -->: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"waitingForLock"</span> <!-- -->: <span class="lg-highlight-literal">false</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Active Operations on a Specific Database
<a class="headerlink leafygreen-ui-1kepx47" href="#active-operations-on-a-specific-database" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="active-operations-on-a-specific-database">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The following example returns information on all active operations for
database
<code class="leafygreen-ui-1l06pbn">
db1
</code>
that have been running longer than 3 seconds:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand(\n {\n currentOp: true,\n \"active\" : true,\n \"secs_running\" : { \"$gt\" : 3 },\n \"ns\" : /^db1\\./\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">currentOp</span>: <span class="lg-highlight-literal">true</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"active"</span> <!-- -->: <span class="lg-highlight-literal">true</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"secs_running"</span> <!-- -->: <!-- -->{ <span class="lg-highlight-string">"$gt"</span> <!-- -->: <span class="lg-highlight-number">3</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"ns"</span> <!-- -->: <span class="lg-highlight-regexp">/^db1</span><span class="lg-highlight-regexp">\.</span><span class="lg-highlight-regexp">/</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->}</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<span class="leafygreen-ui-1qnjd6d" id="std-label-currentOp-cmd-index-creation">
</span>
</section>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Active Indexing Operations
<a class="headerlink leafygreen-ui-1kepx47" href="#active-indexing-operations" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="active-indexing-operations">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
The following example returns information on index creation operations:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.adminCommand(\n {\n currentOp: true,\n $or: [\n { op: \"command\", \"command.createIndexes\": { $exists: true } },\n { op: \"none\", \"msg\" : /^Index Build/ }\n ]\n }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">adminCommand</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">currentOp</span>: <span class="lg-highlight-literal">true</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">$or</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">op</span>: <span class="lg-highlight-string">"command"</span>, <span class="lg-highlight-string">"command.createIndexes"</span>: <!-- -->{ <span class="lg-highlight-attr">$exists</span>: <span class="lg-highlight-literal">true</span> } }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">op</span>: <span class="lg-highlight-string">"none"</span>, <span class="lg-highlight-string">"msg"</span> <!-- -->: <span class="lg-highlight-regexp">/^Index Build/</span> <!-- -->}</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Output Example
<a class="headerlink leafygreen-ui-1kepx47" href="#output-example" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="output-example">
</div>
</a>
</h2>
<div aria-hidden="true">
</div>
<div class="leafygreen-ui-1b75luy" data-lgid="lg-tabs">
<div class="leafygreen-ui-jp7pox" id="tabs-18">
<div aria-label="Tabs to describe usage of repl/shardedcluster/standalone" aria-orientation="horizontal" class="leafygreen-ui-m8p1vb lg-ui-tab-list-0000" data-lgid="lg-tabs-tab_list" role="tablist">
<button aria-controls="_agrusig3v" aria-selected="true" class="leafygreen-ui-1l773z1" data-text="" id="_ij87gfb7q" name="" role="tab" tabindex="0">
<div class="leafygreen-ui-1nxuzmg">
Standalone
</div>
</button>
<button aria-controls="_wbymj5g69" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_5vwh6wcx0" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Replica Set (Primary)
</div>
</button>
<button aria-controls="_vjafqx7r3" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_x5pxcgl09" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Sharded Cluster (mongos)
</div>
</button>
</div>
<div class="leafygreen-ui-ov1ktg">
<div class="leafygreen-ui-1sg2lsz">
</div>
</div>
</div>
<div class="lg-ui-tab-panels-0000" data-lgid="lg-tabs-tab_panels">
<div>
<div aria-labelledby="_cumke618l" class="" id="_miwq7ehdx" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
The following is a prototype of the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.currentOp" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
currentOp
</code>
</span>
</a>
output when run on a standalone:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n \"inprog\": [\n {\n \"type\" : <string>,\n \"host\" : <string>,\n \"desc\" : <string>,\n \"connectionId\" : <number>,\n \"client\" : <string>,\n \"appName\" : <string>,\n \"clientMetadata\" : <document>,\n \"active\" : <boolean>,\n \"currentOpTime\" : <string>,\n \"effectiveUsers\" : [\n {\n \"user\" : <string>,\n \"db\" : <string>\n }\n ],\n \"opid\" : <number>,\n \"lsid\" : {\n \"id\" : <uuid>,\n \"uid\" : <bindata>\n },\n \"secs_running\" : <numberlong()>,\n \"microsecs_running\" : <number>,\n \"op\" : <string>,\n \"ns\" : <string>,\n \"command\" : <document>,\n \"queryFramework\" : <string>,\n \"planSummary\": <string>,\n \"cursor\" : { // only for getMore operations\n \"cursorId\" : <numberlong()>,\n \"createdDate\" : <isodate()>,\n \"lastAccessDate\" : <isodate()>,\n \"nDocsReturned\" : <numberlong()>,\n \"nBatchesReturned\" : <numberlong()>,\n \"noCursorTimeout\" : <boolean>,\n \"tailable\" : <boolean>,\n \"awaitData\" : <boolean>,\n \"originatingCommand\" : <document>,\n \"planSummary\" : <string>,\n \"operationUsingCursorId\" : <numberlong()>\n },\n \"msg\": <string>,\n \"progress\" : {\n \"done\" : <number>,\n \"total\" : <number>\n },\n \"killPending\" : <boolean>,\n \"numYields\" : <number>,\n \"dataThroughputLastSecond\" : <number>,\n \"dataThroughputAverage\" : <number>,\n \"locks\" : {\n \"ParallelBatchWriterMode\" : <string>,\n \"ReplicationStateTransition\" : <string>,\n \"Global\" : <string>,\n \"Database\" : <string>,\n \"Collection\" : <string>,\n \"Metadata\" : <string>,\n \"oplog\" : <string>\n },\n \"waitingForLock\" : <boolean>,\n \"lockStats\" : {\n \"ParallelBatchWriterMode\" : {\n \"acquireCount\": {\n \"r\": <numberlong>,\n \"w\": <numberlong>,\n \"R\": <numberlong>,\n \"W\": <numberlong>\n },\n \"acquireWaitCount\": {\n \"r\": <numberlong>,\n \"w\": <numberlong>,\n \"R\": <numberlong>,\n \"W\": <numberlong>\n },\n \"timeAcquiringMicros\" : {\n \"r\" : NumberLong(0),\n \"w\" : NumberLong(0),\n \"R\" : NumberLong(0),\n \"W\" : NumberLong(0)\n },\n \"deadlockCount\" : {\n \"r\" : NumberLong(0),\n \"w\" : NumberLong(0),\n \"R\" : NumberLong(0),\n \"W\" : NumberLong(0)\n }\n },\n \"ReplicationStateTransition\" : {\n ...\n },\n \"Global\": {\n ...\n },\n \"Database\" : {\n ...\n },\n ...\n }\n },\n ...\n ],\n \"fsyncLock\": <boolean>,\n \"info\": <string>,\n \"ok\": <num>\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"inprog"</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"type"</span> <!-- -->: <<!-- -->string<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"host"</span> <!-- -->: <<!-- -->string<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"desc"</span> <!-- -->: <<!-- -->string<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"connectionId"</span> <!-- -->: <<!-- -->number<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"client"</span> <!-- -->: <<!-- -->string<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"appName"</span> <!-- -->: <<!-- -->string<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"clientMetadata"</span> <!-- -->: <<span class="lg-highlight-variable lg-highlight-language">document</span>><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"active"</span> <!-- -->: <<!-- -->boolean<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"currentOpTime"</span> <!-- -->: <<!-- -->string<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"effectiveUsers"</span> <!-- -->: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"user"</span> <!-- -->: <<!-- -->string<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"db"</span> <!-- -->: <<!-- -->string<!-- -->></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->}</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"opid"</span> <!-- -->: <<!-- -->number<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"lsid"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"id"</span> <!-- -->: <<span class="lg-highlight-variable lg-highlight-constant">UUID</span>><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"uid"</span> <!-- -->: <<span class="lg-highlight-title lg-highlight-class">BinData</span>></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"secs_running"</span> <!-- -->: <!-- --><NumberLong()>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "microsecs_running" : <number>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "op" : <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "ns" : <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "command" : <document>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "queryFramework" : <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "planSummary": <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "cursor" : { // only for getMore operations</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "cursorId" : <NumberLong()>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "createdDate" : <ISODate()>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "lastAccessDate" : <ISODate()>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "nDocsReturned" : <NumberLong()>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "nBatchesReturned" : <NumberLong()>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "noCursorTimeout" : <boolean>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "tailable" : <boolean>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "awaitData" : <boolean>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "originatingCommand" : <document>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "planSummary" : <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "operationUsingCursorId" : <NumberLong()></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "msg": <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "progress" : {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "done" : <number>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "total" : <number></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "killPending" : <boolean>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "numYields" : <number>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "dataThroughputLastSecond" : <number>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "dataThroughputAverage" : <number>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "locks" : {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "ParallelBatchWriterMode" : <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "ReplicationStateTransition" : <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "Global" : <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "Database" : <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "Collection" : <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "Metadata" : <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "oplog" : <string></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "waitingForLock" : <boolean>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "lockStats" : {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "ParallelBatchWriterMode" : {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "acquireCount": {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "r": <NumberLong>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "w": <NumberLong>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "R": <NumberLong>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "W": <NumberLong></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "acquireWaitCount": {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "r": <NumberLong>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "w": <NumberLong>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "R": <NumberLong>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "W": <NumberLong></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "timeAcquiringMicros" : {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "r" : NumberLong(0),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "w" : NumberLong(0),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "R" : NumberLong(0),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "W" : NumberLong(0)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "deadlockCount" : {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "r" : NumberLong(0),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "w" : NumberLong(0),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "R" : NumberLong(0),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "W" : NumberLong(0)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "ReplicationStateTransition" : {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "Global": {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "Database" : {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ],</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "fsyncLock": <boolean>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "info": <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "ok": <num></td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<div>
<div aria-labelledby="_g5zmerdjt" class="leafygreen-ui-38lglc" id="_5p07c964u" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
The following is a prototype of the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.currentOp" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
currentOp
</code>
</span>
</a>
output when run on a primary of a replica set:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n \"inprog\": [\n {\n \"type\" : <string>,\n \"host\" : <string>,\n \"desc\" : <string>,\n \"connectionId\" : <number>,\n \"client\" : <string>,\n \"appName\" : <string>,\n \"clientMetadata\" : <document>,\n \"lsid\" : {\n \"id\" : <uuid>,\n \"uid\" : <bindata>\n },\n \"transaction\" : {\n \"parameters\" : {\n \"txnNumber\" : <numberlong()>,\n \"autocommit\" : <boolean>,\n \"readConcern\" : {\n \"level\" : <string>\n }\n },\n \"readTimestamp\" : <timestamp>,\n \"startWallClockTime\" : <string>,\n \"timeOpenMicros\" : <numberlong()>,\n \"timeActiveMicros\" : <numberlong()>,\n \"timeInactiveMicros\" : <numberlong()>,\n \"expiryTime\" : <string>,\n },\n \"active\" : <boolean>,\n \"currentOpTime\" : <string>,\n \"effectiveUsers\" : [\n {\n \"user\" : <string>,\n \"db\" : <string>\n }\n ],\n \"opid\" : <number>,\n \"secs_running\" : <numberlong()>,\n \"microsecs_running\" : <number>,\n \"op\" : <string>,\n \"ns\" : <string>,\n \"command\" : <document>,\n \"originatingCommand\" : <document>,\n \"queryFramework\" : <string>,\n \"planSummary\": <string>,\n \"prepareReadConflicts\" : <numberlong()>,\n \"writeConflicts\" : <numberlong()>,\n \"cursor\" : { // only for getMore operations\n \"cursorId\" : <numberlong()>,\n \"createdDate\" : <isodate()>,\n \"lastAccessDate\" : <isodate()>,\n \"nDocsReturned\" : <numberlong()>,\n \"nBatchesReturned\" : <numberlong()>,\n \"noCursorTimeout\" : <boolean>,\n \"tailable\" : <boolean>,\n \"awaitData\" : <boolean>,\n \"originatingCommand\" : <document>,\n \"planSummary\" : <string>,\n \"operationUsingCursorId\" : <numberlong()>\n },\n \"msg\": <string>,\n \"progress\" : {\n \"done\" : <number>,\n \"total\" : <number>\n },\n \"killPending\" : <boolean>,\n \"numYields\" : <number>,\n \"dataThroughputLastSecond\" : <number>,\n \"dataThroughputAverage\" : <number>,\n \"locks\" : {\n \"ParallelBatchWriterMode\" : <string>,\n \"ReplicationStateTransition\" : <string>,\n \"Global\" : <string>,\n \"Database\" : <string>,\n \"Collection\" : <string>,\n \"Metadata\" : <string>,\n \"oplog\" : <string>\n },\n \"waitingForLock\" : <boolean>,\n \"lockStats\" : {\n \"ParallelBatchWriterMode\" : {\n \"acquireCount\": {\n \"r\": <numberlong>,\n \"w\": <numberlong>,\n \"R\": <numberlong>,\n \"W\": <numberlong>\n },\n \"acquireWaitCount\": {\n \"r\": <numberlong>,\n \"w\": <numberlong>,\n \"R\": <numberlong>,\n \"W\": <numberlong>\n },\n \"timeAcquiringMicros\" : {\n \"r\" : NumberLong(0),\n \"w\" : NumberLong(0),\n \"R\" : NumberLong(0),\n \"W\" : NumberLong(0)\n },\n \"deadlockCount\" : {\n \"r\" : NumberLong(0),\n \"w\" : NumberLong(0),\n \"R\" : NumberLong(0),\n \"W\" : NumberLong(0)\n }\n },\n \"ReplicationStateTransition\" : {\n ...\n },\n \"Global\" : {\n ...\n },\n \"Database\" : {\n ...\n },\n ...\n }\n },\n ...\n ],\n \"fsyncLock\": <boolean>,\n \"info\": <string>,\n \"ok\": <num>,\n \"operationTime\": <timestamp>,\n \"$clusterTime\": <document>\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"inprog"</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"type"</span> <!-- -->: <<!-- -->string<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"host"</span> <!-- -->: <<!-- -->string<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"desc"</span> <!-- -->: <<!-- -->string<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"connectionId"</span> <!-- -->: <<!-- -->number<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"client"</span> <!-- -->: <<!-- -->string<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"appName"</span> <!-- -->: <<!-- -->string<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"clientMetadata"</span> <!-- -->: <<span class="lg-highlight-variable lg-highlight-language">document</span>><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"lsid"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"id"</span> <!-- -->: <<span class="lg-highlight-variable lg-highlight-constant">UUID</span>><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"uid"</span> <!-- -->: <<span class="lg-highlight-title lg-highlight-class">BinData</span>></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"transaction"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"parameters"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"txnNumber"</span> <!-- -->: <!-- --><NumberLong()>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "autocommit" : <boolean>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "readConcern" : {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "level" : <string></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "readTimestamp" : <Timestamp>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "startWallClockTime" : <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "timeOpenMicros" : <NumberLong()>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "timeActiveMicros" : <NumberLong()>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "timeInactiveMicros" : <NumberLong()>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "expiryTime" : <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "active" : <boolean>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "currentOpTime" : <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "effectiveUsers" : [</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "user" : <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "db" : <string></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ],</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "opid" : <number>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "secs_running" : <NumberLong()>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "microsecs_running" : <number>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "op" : <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "ns" : <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "command" : <document>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "originatingCommand" : <document>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "queryFramework" : <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "planSummary": <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "prepareReadConflicts" : <NumberLong()>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "writeConflicts" : <NumberLong()>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "cursor" : { // only for getMore operations</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "cursorId" : <NumberLong()>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "createdDate" : <ISODate()>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "lastAccessDate" : <ISODate()>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "nDocsReturned" : <NumberLong()>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "nBatchesReturned" : <NumberLong()>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "noCursorTimeout" : <boolean>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "tailable" : <boolean>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "awaitData" : <boolean>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "originatingCommand" : <document>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "planSummary" : <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "operationUsingCursorId" : <NumberLong()></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "msg": <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "progress" : {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "done" : <number>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "total" : <number></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "killPending" : <boolean>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "numYields" : <number>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "dataThroughputLastSecond" : <number>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "dataThroughputAverage" : <number>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "locks" : {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "ParallelBatchWriterMode" : <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "ReplicationStateTransition" : <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "Global" : <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "Database" : <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "Collection" : <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "Metadata" : <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "oplog" : <string></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "waitingForLock" : <boolean>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "lockStats" : {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "ParallelBatchWriterMode" : {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "acquireCount": {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "r": <NumberLong>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "w": <NumberLong>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "R": <NumberLong>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "W": <NumberLong></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "acquireWaitCount": {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "r": <NumberLong>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "w": <NumberLong>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "R": <NumberLong>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "W": <NumberLong></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "timeAcquiringMicros" : {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "r" : NumberLong(0),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "w" : NumberLong(0),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "R" : NumberLong(0),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "W" : NumberLong(0)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "deadlockCount" : {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "r" : NumberLong(0),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "w" : NumberLong(0),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "R" : NumberLong(0),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "W" : NumberLong(0)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "ReplicationStateTransition" : {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "Global" : {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "Database" : {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ],</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "fsyncLock": <boolean>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "info": <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "ok": <num>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "operationTime": <timestamp>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "$clusterTime": <document></td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
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<div aria-labelledby="_osk5eeibz" class="leafygreen-ui-38lglc" id="_w5vozp9vc" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
The following is an example of the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-dbcommand-dbcmd.currentOp" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
currentOp
</code>
</span>
</a>
output when run on a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
of a sharded
cluster (Fields may vary depending on the operation being
reported):
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n \"inprog\": [\n {\n \"shard\": <string>,\n \"type\" : <string>,\n \"host\" : <string>,\n \"desc\" : <string>,\n \"connectionId\" : <number>,\n \"client_s\" : <string>,\n \"appName\" : <string>,\n \"clientMetadata\" : <document>,\n \"lsid\" : {\n \"id\" : <uuid>,\n \"uid\" : <bindata>\n },\n \"transaction\" : {\n \"parameters\" : {\n \"txnNumber\" : <numberlong()>,\n \"autocommit\" : <boolean>,\n \"readConcern\" : {\n \"level\" : <string>\n }\n },\n \"readTimestamp\" : <timestamp>,\n \"startWallClockTime\" : <string>,\n \"timeOpenMicros\" : <numberlong()>,\n \"timeActiveMicros\" : <numberlong()>,\n \"timeInactiveMicros\" : <numberlong()>,\n \"expiryTime\" : <string>,\n },\n \"active\" : <boolean>,\n \"currentOpTime\" : <string>,\n \"effectiveUsers\" : [\n {\n \"user\" : <string>,\n \"db\" : <string>\n }\n ],\n \"runBy\" : [\n {\n \"user\" : <string>,\n \"db\" : <string>\n }\n ],\n \"twoPhaseCommitCoordinator\" : {\n \"lsid\" : {\n \"id\" : <uuid>,\n \"uid\" : <bindata>\n },\n \"txnNumber\" : <numberlong>,\n \"numParticipants\" : <numberlong>,\n \"state\" : <string>,\n \"commitStartTime\" : <isodate>,\n \"hasRecoveredFromFailover\" : <boolean>,\n \"stepDurations\" : <document>,\n \"decision\" : <document>,\n \"deadline\" : <isodate>\n }\n \"opid\" : <string>,\n \"secs_running\" : <numberlong()>,\n \"microsecs_running\" : <number>,\n \"op\" : <string>,\n \"ns\" : <string>,\n \"command\" : <document>,\n \"configTime\" : <timestamp>, // Starting in 5.0\n \"topologyTime\" : <timestamp>, // Starting in 5.0\n \"queryFramework\" : <string>, // Starting in 6.2\n \"planSummary\": <string>,\n \"prepareReadConflicts\" : <numberlong()>,\n \"writeConflicts\" : <numberlong()>,\n \"cursor\" : { // only for getMore operations\n \"cursorId\" : <numberlong()>,\n \"createdDate\" : <isodate()>,\n \"lastAccessDate\" : <isodate()>,\n \"nDocsReturned\" : <numberlong()>,\n \"nBatchesReturned\" : <numberlong()>,\n \"noCursorTimeout\" : <boolean>,\n \"tailable\" : <boolean>,\n \"awaitData\" : <boolean>,\n \"originatingCommand\" : <document>,\n \"planSummary\" : <string>,\n \"operationUsingCursorId\" : <numberlong()>\n },\n \"msg\": <string>,\n \"progress\" : {\n \"done\" : <number>,\n \"total\" : <number>\n },\n \"killPending\" : <boolean>,\n \"numYields\" : <number>,\n \"dataThroughputLastSecond\" : <number>,\n \"dataThroughputAverage\" : <number>,\n \"locks\" : {\n \"ParallelBatchWriterMode\" : <string>,\n \"ReplicationStateTransition\" : <string>,\n \"Global\" : <string>,\n \"Database\" : <string>,\n \"Collection\" : <string>,\n \"Metadata\" : <string>,\n \"DDLDatabase\" : <string>,\n \"DDLCollection\" : <string>,\n \"oplog\" : <string>\n },\n \"waitingForLock\" : <boolean>,\n \"lockStats\" : {\n \"ParallelBatchWriterMode\": {\n \"acquireCount\": {\n \"r\": <numberlong>,\n \"w\": <numberlong>,\n \"R\": <numberlong>,\n \"W\": <numberlong>\n },\n \"acquireWaitCount\": {\n \"r\": <numberlong>,\n \"w\": <numberlong>,\n \"R\": <numberlong>,\n \"W\": <numberlong>\n },\n \"timeAcquiringMicros\" : {\n \"r\" : NumberLong(0),\n \"w\" : NumberLong(0),\n \"R\" : NumberLong(0),\n \"W\" : NumberLong(0)\n },\n \"deadlockCount\" : {\n \"r\" : NumberLong(0),\n \"w\" : NumberLong(0),\n \"R\" : NumberLong(0),\n \"W\" : NumberLong(0)\n }\n },\n \"ReplicationStateTransition\" : {\n ...\n },\n \"Global\" : {\n ...\n },\n \"Database\" : {\n ...\n },\n ...\n }\n },\n ...\n ],\n \"ok\": <num>,\n \"operationTime\": <timestamp>,\n \"$clusterTime\": <document>\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"inprog"</span>: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"shard"</span>: <<!-- -->string<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"type"</span> <!-- -->: <<!-- -->string<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"host"</span> <!-- -->: <<!-- -->string<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"desc"</span> <!-- -->: <<!-- -->string<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"connectionId"</span> <!-- -->: <<!-- -->number<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"client_s"</span> <!-- -->: <<!-- -->string<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"appName"</span> <!-- -->: <<!-- -->string<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"clientMetadata"</span> <!-- -->: <<span class="lg-highlight-variable lg-highlight-language">document</span>><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"lsid"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"id"</span> <!-- -->: <<span class="lg-highlight-variable lg-highlight-constant">UUID</span>><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"uid"</span> <!-- -->: <<span class="lg-highlight-title lg-highlight-class">BinData</span>></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"transaction"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"parameters"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"txnNumber"</span> <!-- -->: <!-- --><NumberLong()>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "autocommit" : <boolean>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "readConcern" : {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "level" : <string></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "readTimestamp" : <Timestamp>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "startWallClockTime" : <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "timeOpenMicros" : <NumberLong()>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "timeActiveMicros" : <NumberLong()>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "timeInactiveMicros" : <NumberLong()>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "expiryTime" : <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "active" : <boolean>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "currentOpTime" : <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "effectiveUsers" : [</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "user" : <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "db" : <string></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ],</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "runBy" : [</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "user" : <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "db" : <string></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ],</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "twoPhaseCommitCoordinator" : {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "lsid" : {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "id" : <UUID>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "uid" : <BinData></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "txnNumber" : <NumberLong>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "numParticipants" : <NumberLong>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "state" : <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "commitStartTime" : <ISODate>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "hasRecoveredFromFailover" : <boolean>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "stepDurations" : <document>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "decision" : <document>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "deadline" : <ISODate></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "opid" : <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "secs_running" : <NumberLong()>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "microsecs_running" : <number>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "op" : <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "ns" : <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "command" : <document>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "configTime" : <Timestamp>, // Starting in 5.0</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "topologyTime" : <Timestamp>, // Starting in 5.0</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "queryFramework" : <string>, // Starting in 6.2</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "planSummary": <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "prepareReadConflicts" : <NumberLong()>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "writeConflicts" : <NumberLong()>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "cursor" : { // only for getMore operations</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "cursorId" : <NumberLong()>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "createdDate" : <ISODate()>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "lastAccessDate" : <ISODate()>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "nDocsReturned" : <NumberLong()>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "nBatchesReturned" : <NumberLong()>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "noCursorTimeout" : <boolean>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "tailable" : <boolean>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "awaitData" : <boolean>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "originatingCommand" : <document>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "planSummary" : <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "operationUsingCursorId" : <NumberLong()></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "msg": <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "progress" : {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "done" : <number>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "total" : <number></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "killPending" : <boolean>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "numYields" : <number>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "dataThroughputLastSecond" : <number>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "dataThroughputAverage" : <number>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "locks" : {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "ParallelBatchWriterMode" : <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "ReplicationStateTransition" : <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "Global" : <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "Database" : <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "Collection" : <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "Metadata" : <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "DDLDatabase" : <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "DDLCollection" : <string>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "oplog" : <string></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "waitingForLock" : <boolean>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "lockStats" : {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "ParallelBatchWriterMode": {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "acquireCount": {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "r": <NumberLong>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "w": <NumberLong>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "R": <NumberLong>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "W": <NumberLong></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "acquireWaitCount": {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "r": <NumberLong>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "w": <NumberLong>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "R": <NumberLong>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "W": <NumberLong></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "timeAcquiringMicros" : {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "r" : NumberLong(0),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "w" : NumberLong(0),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "R" : NumberLong(0),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "W" : NumberLong(0)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "deadlockCount" : {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "r" : NumberLong(0),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "w" : NumberLong(0),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "R" : NumberLong(0),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "W" : NumberLong(0)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "ReplicationStateTransition" : {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "Global" : {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "Database" : {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ],</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "ok": <num>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "operationTime": <timestamp>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> "$clusterTime": <document></td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
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</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Specific Output Examples
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<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
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</h2>
<p class="leafygreen-ui-1kp3ins">
These output samples illustrate
<code class="leafygreen-ui-1l06pbn">
currentOp
</code>
output for particular
operations. The fields that make up the actual output vary depending on
the server's role.
</p>
<span class="leafygreen-ui-1qnjd6d" id="std-label-db.currentOp-resharding-ex">
</span>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Resharding Output Example
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</h3>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n type: \"op\",\n desc: \"Resharding{Donor, Recipient, Coordinator}Service <reshardinguuid>\",\n op: \"command\",\n ns: \"<database>.<collection>\",\n originatingCommand: {\n reshardCollection: \"<database>.<collection>\",\n key: <shardkey>,\n unique: <boolean>,\n collation: {locale: \"simple\"},\n // Other options to the reshardCollection command are omitted\n // to decrease the likelihood the output is truncated.\n },\n {donor, coordinator, recipient}State : \"<service>\",\n approxDocumentsToCopy: NumberLong(<count>),\n approxBytesToCopy: NumberLong(<count>),\n bytesCopied: NumberLong(<count>),\n countWritesToStashCollections: NumberLong(<count>),\n countWritesDuringCriticalSection : NumberLong(<count>),\n countReadsDuringCriticalSection: NumberLong(<count>),\n deletesApplied: NumberLong(<count>),\n documentsCopied: NumberLong(<count>),\n insertsApplied: NumberLong(<count>),\n oplogEntriesFetched: NumberLong(<count>),\n oplogEntriesApplied: NumberLong(<count>),\n remainingOperationTimeEstimatedSecs: NumberLong(<count>),\n allShardsLowestRemainingOperationTimeEstimatedSecs: NumberLong(<estimate>),\n allShardsHighestRemainingOperationTimeEstimatedSecs: NumberLong(<estimate>),\n totalApplyTimeElapsedSecs: NumberLong(<count>),\n totalCopyTimeElapsedSecs: NumberLong(<count>),\n totalCriticalSectionTimeElapsedSecs : NumberLong(<count>),\n totalOperationTimeElapsedSecs: NumberLong(<count>),\n updatesApplied: NumberLong(<count>),\n}","programmingLanguage":"JavaScript"}
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<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">type</span>: <span class="lg-highlight-string">"op"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">desc</span>: <span class="lg-highlight-string">"Resharding{Donor, Recipient, Coordinator}Service <reshardingUUID>"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">op</span>: <span class="lg-highlight-string">"command"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">ns</span>: <span class="lg-highlight-string">"<database>.<collection>"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">originatingCommand</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">reshardCollection</span>: <span class="lg-highlight-string">"<database>.<collection>"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">key</span>: <<!-- -->shardkey<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">unique</span>: <<!-- -->boolean<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">collation</span>: <!-- -->{<span class="lg-highlight-attr">locale</span>: <span class="lg-highlight-string">"simple"</span>}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-comment">//</span><span class="lg-highlight-comment"> Other options to </span><span class="lg-highlight-comment">the reshardCollection command are omitted</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-comment">//</span><span class="lg-highlight-comment"> to decrease the </span><span class="lg-highlight-comment">likelihood</span><span class="lg-highlight-comment"> the output is </span><span class="lg-highlight-comment">truncated.</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{<!-- -->donor<!-- -->, <!-- -->coordinator<!-- -->, <!-- -->recipient}<span class="lg-highlight-title lg-highlight-class">State</span> <!-- -->: <span class="lg-highlight-string">"<service state>"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">approxDocumentsToCopy</span>: <span class="lg-highlight-title lg-highlight-class">NumberLong</span>(<<!-- -->count<!-- -->><!-- -->)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">approxBytesToCopy</span>: <span class="lg-highlight-title lg-highlight-class">NumberLong</span>(<<!-- -->count<!-- -->><!-- -->)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">bytesCopied</span>: <span class="lg-highlight-title lg-highlight-class">NumberLong</span>(<<!-- -->count<!-- -->><!-- -->)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">countWritesToStashCollections</span>: <span class="lg-highlight-title lg-highlight-class">NumberLong</span>(<<!-- -->count<!-- -->><!-- -->)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->countWritesDuringCriticalSection <!-- -->: <span class="lg-highlight-title lg-highlight-class">NumberLong</span>(<<!-- -->count<!-- -->><!-- -->)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">countReadsDuringCriticalSection</span>: <span class="lg-highlight-title lg-highlight-class">NumberLong</span>(<<!-- -->count<!-- -->><!-- -->)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">deletesApplied</span>: <span class="lg-highlight-title lg-highlight-class">NumberLong</span>(<<!-- -->count<!-- -->><!-- -->)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">documentsCopied</span>: <span class="lg-highlight-title lg-highlight-class">NumberLong</span>(<<!-- -->count<!-- -->><!-- -->)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">insertsApplied</span>: <span class="lg-highlight-title lg-highlight-class">NumberLong</span>(<<!-- -->count<!-- -->><!-- -->)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">oplogEntriesFetched</span>: <span class="lg-highlight-title lg-highlight-class">NumberLong</span>(<<!-- -->count<!-- -->><!-- -->)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">oplogEntriesApplied</span>: <span class="lg-highlight-title lg-highlight-class">NumberLong</span>(<<!-- -->count<!-- -->><!-- -->)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">remainingOperationTimeEstimatedSecs</span>: <span class="lg-highlight-title lg-highlight-class">NumberLong</span>(<<!-- -->count<!-- -->><!-- -->)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">allShardsLowestRemainingOperationTimeEstimatedSecs</span>: <span class="lg-highlight-title lg-highlight-class">NumberLong</span>(<<!-- -->estimate<!-- -->><!-- -->)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">allShardsHighestRemainingOperationTimeEstimatedSecs</span>: <span class="lg-highlight-title lg-highlight-class">NumberLong</span>(<<!-- -->estimate<!-- -->><!-- -->)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">totalApplyTimeElapsedSecs</span>: <span class="lg-highlight-title lg-highlight-class">NumberLong</span>(<<!-- -->count<!-- -->><!-- -->)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">totalCopyTimeElapsedSecs</span>: <span class="lg-highlight-title lg-highlight-class">NumberLong</span>(<<!-- -->count<!-- -->><!-- -->)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->totalCriticalSectionTimeElapsedSecs <!-- -->: <span class="lg-highlight-title lg-highlight-class">NumberLong</span>(<<!-- -->count<!-- -->><!-- -->)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">totalOperationTimeElapsedSecs</span>: <span class="lg-highlight-title lg-highlight-class">NumberLong</span>(<<!-- -->count<!-- -->><!-- -->)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">updatesApplied</span>: <span class="lg-highlight-title lg-highlight-class">NumberLong</span>(<<!-- -->count<!-- -->><!-- -->)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
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<span class="leafygreen-ui-1qnjd6d" id="std-label-db.currentOp-global-index-ex">
</span>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Global Index Example
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<div class="css-1btu0w3 evvkmar0" id="global-index-example">
</div>
</a>
</h3>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n type: \"op\",\n desc: \"GlobalIndex{Donor, Recipient, Coordinator}Service <globalindexuuid}\",>.<collection>\",\n originatingCommand: {\n createIndexes: \"<database>.<collection>\",\n key: <indexkeypattern>,\n unique: <boolean>,\n <additional>\n },\n {donor, coordinator, recipient}State : \"<service>\",\n approxDocumentsToScan: NumberLong(<count>),\n approxBytesToScan: NumberLong(<count>),\n bytesWrittenFromScan: NumberLong(<count>),\n countWritesToStashCollections: NumberLong(<count>),\n countWritesDuringCriticalSection : NumberLong(<count>),\n countReadsDuringCriticalSection: NumberLong(<count>),\n keysWrittenFromScan: NumberLong(<count>),\n remainingOperationTimeEstimatedSecs: NumberLong(<count>),\n allShardsLowestRemainingOperationTimeEstimatedSecs: NumberLong(<estimate>),\n allShardsHighestRemainingOperationTimeEstimatedSecs: NumberLong(<estimate>),\n totalCopyTimeElapsedSecs: NumberLong(<count>),\n totalCriticalSectionTimeElapsedSecs : NumberLong(<count>),\n totalOperationTimeElapsedSecs: NumberLong(<count>),\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">type</span>: <span class="lg-highlight-string">"op"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">desc</span>: <span class="lg-highlight-string">"GlobalIndex{Donor, Recipient, Coordinator}Service <globalIndexUUID}"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">op</span>: <span class="lg-highlight-string">"command"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">ns</span>: <span class="lg-highlight-string">"<database>.<collection>"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">originatingCommand</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">createIndexes</span>: <span class="lg-highlight-string">"<database>.<collection>"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">key</span>: <<!-- -->indexkeypattern<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">unique</span>: <<!-- -->boolean<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- --><Additional createIndexes options></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {donor, coordinator, recipient}State : "<service state>",</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> approxDocumentsToScan: NumberLong(<count>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> approxBytesToScan: NumberLong(<count>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> bytesWrittenFromScan: NumberLong(<count>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> countWritesToStashCollections: NumberLong(<count>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> countWritesDuringCriticalSection : NumberLong(<count>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> countReadsDuringCriticalSection: NumberLong(<count>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> keysWrittenFromScan: NumberLong(<count>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> remainingOperationTimeEstimatedSecs: NumberLong(<count>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> allShardsLowestRemainingOperationTimeEstimatedSecs: NumberLong(<estimate>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> allShardsHighestRemainingOperationTimeEstimatedSecs: NumberLong(<estimate>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> totalCopyTimeElapsedSecs: NumberLong(<count>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> totalCriticalSectionTimeElapsedSecs : NumberLong(<count>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> totalOperationTimeElapsedSecs: NumberLong(<count>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
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</div>
</section>
<span class="leafygreen-ui-1qnjd6d" id="std-label-currentOp-output-fields">
</span>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Output Fields
<a class="headerlink leafygreen-ui-1kepx47" href="#output-fields" title="Permalink to this heading">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="output-fields">
</div>
</a>
</h2>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.type
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.type" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.type">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The type of operation. Values are either:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
op
</code>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
idleSession
</code>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
idleCursor
</code>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
If the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.type" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
currentOp.type
</code>
</span>
</a>
is
<code class="leafygreen-ui-1l06pbn">
op
</code>
,
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.op" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
currentOp.op
</code>
</span>
</a>
provides details on the specific operation.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.host
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.host" title="Permalink to this definition">
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<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.host">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The name of the host against which the operation is run.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.desc
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.desc" title="Permalink to this definition">
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<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.desc">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
A description of the client. This string includes the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.connectionId" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
connectionId
</code>
.
</span>
</a>
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.connectionId
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.connectionId" title="Permalink to this definition">
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<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.connectionId">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
An identifier for the connection where the operation originated.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.client
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.client" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.client">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
A string with information about where the operation originated.
</p>
<p class="leafygreen-ui-1kp3ins">
For multi-document transactions,
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.client" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
client
</code>
</span>
</a>
stores
information about the most recent client to run an operation inside
the transaction.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.appName
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.appName" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.appName">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The identifier of the client application which ran the operation. Use
the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/connection-string-options/#mongodb-urioption-urioption.appName">
<code class="leafygreen-ui-1l06pbn">
appName
</code>
</a>
connection string option to set a custom value
for the
<code class="leafygreen-ui-1l06pbn">
appName
</code>
field.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.clientMetadata
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.clientMetadata" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.clientMetadata">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Additional information on the client.
</p>
<p class="leafygreen-ui-1kp3ins">
For multi-document transactions,
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.client" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
client
</code>
</span>
</a>
stores
information about the most recent client to run an operation inside
the transaction.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.currentOpTime
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.currentOpTime" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.currentOpTime">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The start time of the operation.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.currentQueue
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.currentQueue" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.currentQueue">
</div>
</a>
</dt>
<dd>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
8.0
</em>
.
</p>
</div>
<p class="leafygreen-ui-1kp3ins">
The current
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/serverStatus/#std-label-server-status-queues">
queue
</a>
of the operation.
</p>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.currentQueue.name
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.currentQueue.name" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.currentQueue.name">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The name of the current queue of the operation.
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
If
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.currentQueue" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
currentQueue
</code>
</span>
</a>
is present and
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.currentQueue.name" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
name
</code>
</span>
</a>
is
<code class="leafygreen-ui-1l06pbn">
ingress
</code>
, the
operation is waiting for ingress admission.
</p>
</div>
</div>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.currentQueue.totalTimeQueuedMicros
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.currentQueue.totalTimeQueuedMicros" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.currentQueue.totalTimeQueuedMicros">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The cumulative total time that the operation spent in the
corresponding queue, in microseconds.
</p>
</dd>
</dl>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.queues
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.queues" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.queues">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Information about the current operation's
<code class="leafygreen-ui-1l06pbn">
ingress
</code>
and
<code class="leafygreen-ui-1l06pbn">
execution
</code>
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/serverStatus/#std-label-server-status-queues">
queues
<!-- -->
.
</a>
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.effectiveUsers
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.effectiveUsers" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.effectiveUsers">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
An array that contains a document for each user associated with the
operation. Each user document contains the
<code class="leafygreen-ui-1l06pbn">
user
</code>
name and the
authentication
<code class="leafygreen-ui-1l06pbn">
db
</code>
.
</p>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.runBy" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
currentOp.runBy
</code>
</span>
</a>
</p>
</div>
</div>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.runBy
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.runBy" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.runBy">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
An array that contains a document for each user who is impersonating
the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.effectiveUsers" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
effectiveUser(s)
</code>
</span>
</a>
for the
operation. The runBy document contains the
<code class="leafygreen-ui-1l06pbn">
user
</code>
name
and the authentication
<code class="leafygreen-ui-1l06pbn">
db
</code>
. In general, the runBy user is
the
<code class="leafygreen-ui-1l06pbn">
__system
</code>
user; e.g.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"\"runBy\" : [\n {\n \"user\" : \"__system\",\n \"db\" : \"local\"\n }\n]","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string">"runBy"</span> <!-- -->: <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"user"</span> <!-- -->: <span class="lg-highlight-string">"__system"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"db"</span> <!-- -->: <span class="lg-highlight-string">"local"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">]</td></tr></tbody></table></code></pre>
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<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
<em>
Only available on sharded clusters
</em>
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.lsid
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.lsid" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.lsid">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The session identifier.
</p>
<p class="leafygreen-ui-1kp3ins">
Only present if the operation is associated with a
session.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.transaction
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.transaction" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.transaction">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
A document that contains
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/transactions/#std-label-transactions">
multi-document transaction
</a>
information.
</p>
<p class="leafygreen-ui-1kp3ins">
Only present if the operation is part of a multi-document transaction.
</p>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.transaction.parameters
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.transaction.parameters" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.transaction.parameters">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
A document that contains information on multi-document
transaction.
</p>
<p class="leafygreen-ui-1kp3ins">
Only present if the operation is part of a multi-document
transaction.
</p>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.transaction.parameters.txnNumber
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.transaction.parameters.txnNumber" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.transaction.parameters.txnNumber">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The transaction number.
</p>
<p class="leafygreen-ui-1kp3ins">
Only present if the operation is part of a multi-document transaction.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.transaction.parameters.autocommit
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.transaction.parameters.autocommit" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.transaction.parameters.autocommit">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
A boolean flag that indicates if autocommit is on for the
transaction.
</p>
<p class="leafygreen-ui-1kp3ins">
Only present if the operation is part of a multi-document transaction.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.transaction.parameters.readConcern
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.transaction.parameters.readConcern" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.transaction.parameters.readConcern">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/transactions/#std-label-transactions-read-concern">
read concern
</a>
for the
transaction.
</p>
<p class="leafygreen-ui-1kp3ins">
Multi-document transactions support read concern
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/read-concern-snapshot/#mongodb-readconcern-readconcern.-snapshot-">
<code class="leafygreen-ui-1l06pbn">
"snapshot"
</code>
</a>
,
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/read-concern-local/#mongodb-readconcern-readconcern.-local-">
<code class="leafygreen-ui-1l06pbn">
"local"
</code>
</a>
, and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/read-concern-majority/#mongodb-readconcern-readconcern.-majority-">
<code class="leafygreen-ui-1l06pbn">
"majority"
</code>
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
Only present if the operation is part of a multi-document transaction.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.transaction.readTimestamp
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.transaction.readTimestamp" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.transaction.readTimestamp">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The timestamp of the snapshot being read by the operations in
the transaction.
</p>
<p class="leafygreen-ui-1kp3ins">
Only present if the operation is part of a multi-document transaction.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.transaction.startWallClockTime
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.transaction.startWallClockTime" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.transaction.startWallClockTime">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The date and time (with time zone) of the transaction start.
</p>
<p class="leafygreen-ui-1kp3ins">
Only present if the operation is part of a multi-document transaction.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.transaction.timeOpenMicros
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.transaction.timeOpenMicros" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.transaction.timeOpenMicros">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The duration of the transaction in microseconds.
</p>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.transaction.timeActiveMicros" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
timeActiveMicros
</code>
</span>
</a>
value added to the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.transaction.timeInactiveMicros" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
timeInactiveMicros
</code>
</span>
</a>
should equal the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.transaction.timeOpenMicros" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
timeOpenMicros
</code>
.
</span>
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
Only present if the operation is part of a multi-document transaction.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.transaction.timeActiveMicros
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.transaction.timeActiveMicros" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.transaction.timeActiveMicros">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The total amount of time that the transaction has been active;
i.e. when the transaction had operations running.
</p>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.transaction.timeActiveMicros" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
timeActiveMicros
</code>
</span>
</a>
value added to the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.transaction.timeInactiveMicros" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
timeInactiveMicros
</code>
</span>
</a>
should equal the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.transaction.timeOpenMicros" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
timeOpenMicros
</code>
.
</span>
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
Only present if the operation is part of a multi-document transaction.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.transaction.timeInactiveMicros
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.transaction.timeInactiveMicros" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.transaction.timeInactiveMicros">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The total amount of time that the transaction has been
inactive; i.e. when the transaction had no operations running.
</p>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.transaction.timeInactiveMicros" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
timeInactiveMicros
</code>
</span>
</a>
value added to the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.transaction.timeActiveMicros" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
timeActiveMicros
</code>
</span>
</a>
should equal the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.transaction.timeOpenMicros" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
timeOpenMicros
</code>
.
</span>
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
Only present if the operation is part of a multi-document transaction.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.transaction.expiryTime
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.transaction.expiryTime" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.transaction.expiryTime">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The date and time (with time zone) when the transaction will
time out and abort.
</p>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.transaction.expiryTime" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
currentOp.transaction.expiryTime
</code>
</span>
</a>
equals the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.transaction.startWallClockTime" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
currentOp.transaction.startWallClockTime
</code>
</span>
</a>
+ the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/parameters/#mongodb-parameter-param.transactionLifetimeLimitSeconds">
<code class="leafygreen-ui-1l06pbn">
transactionLifetimeLimitSeconds
</code>
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
For more information, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/transactions-production-consideration/#std-label-transaction-limit">
Runtime Limit
</a>
for
transactions.
</p>
<p class="leafygreen-ui-1kp3ins">
Only present if the operation is part of a multi-document transaction.
</p>
</dd>
</dl>
</dd>
</dl>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.twoPhaseCommitCoordinator
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.twoPhaseCommitCoordinator" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.twoPhaseCommitCoordinator">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Information on either:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<span class="leafygreen-ui-1qnjd6d" id="std-label-current-op-cmd-commit-coord-metrics">
</span>
<p class="leafygreen-ui-1kp3ins">
The commit coordination metrics for a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/transactions/#std-label-transactions">
transaction whose
write operations span multiple shards
<!-- -->
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
Commit coordination is handled by a shard, and
<code class="leafygreen-ui-1l06pbn">
currentOp
</code>
(run either on a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/program/mongos/#mongodb-binary-bin.mongos">
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
</a>
or a
shard member) returns a shard's coordination information only for
those transactions currently being coordinated by that shard.
</p>
<p class="leafygreen-ui-1kp3ins">
To filter for just the commit coordination metrics:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.currentOp( { desc: \"transaction coordinator\" })","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">currentOp</span>( <!-- -->{ <span class="lg-highlight-attr">desc</span>: <span class="lg-highlight-string">"transaction coordinator"</span> })</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<span class="leafygreen-ui-1qnjd6d" id="std-label-current-op-cmd-commit-coord-operation">
</span>
<p class="leafygreen-ui-1kp3ins">
A specific commit coordination operation (i.e.
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.type" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
currentOp.type
</code>
</span>
</a>
is
<code class="leafygreen-ui-1l06pbn">
op
</code>
and
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.desc" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
currentOp.desc
</code>
</span>
</a>
is
<code class="leafygreen-ui-1l06pbn">
"TransactionCoordinator"
</code>
) spawned by the transaction
coordinator.
</p>
</li>
</ul>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.twoPhaseCommitCoordinator.lsid
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.twoPhaseCommitCoordinator.lsid" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.twoPhaseCommitCoordinator.lsid">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The session identifier for the multi-shard transaction.
</p>
<p class="leafygreen-ui-1kp3ins">
The combination of the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.twoPhaseCommitCoordinator.lsid" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
lsid
</code>
</span>
</a>
and
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.twoPhaseCommitCoordinator.txnNumber" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
txnNumber
</code>
</span>
</a>
identifies
the transaction.
</p>
<p class="leafygreen-ui-1kp3ins">
Available for both the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-current-op-cmd-commit-coord-metrics" target="_self">
<span>
commit coordination metrics
</span>
</a>
and for specific
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-current-op-cmd-commit-coord-operation" target="_self">
<span>
coordination operation
<!-- -->
.
</span>
</a>
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.twoPhaseCommitCoordinator.txnNumber
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.twoPhaseCommitCoordinator.txnNumber" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.twoPhaseCommitCoordinator.txnNumber">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The transaction number for the multi-shard transaction.
</p>
<p class="leafygreen-ui-1kp3ins">
The combination of the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.twoPhaseCommitCoordinator.txnNumber" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
txnNumber
</code>
</span>
</a>
and
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.twoPhaseCommitCoordinator.lsid" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
lsid
</code>
</span>
</a>
identifies the
transaction.
</p>
<p class="leafygreen-ui-1kp3ins">
Available for both the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-current-op-cmd-commit-coord-metrics" target="_self">
<span>
commit coordination metrics
</span>
</a>
and for specific
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-current-op-cmd-commit-coord-operation" target="_self">
<span>
coordination operation
<!-- -->
.
</span>
</a>
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.twoPhaseCommitCoordinator.action
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.twoPhaseCommitCoordinator.action" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.twoPhaseCommitCoordinator.action">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The specific commit coordination operation spawned by the
transaction coordinator:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
"sendingPrepare"
</code>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
"sendingCommit"
</code>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
"sendingAbort"
</code>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
"writingParticipantList"
</code>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
"writingDecision"
</code>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
"deletingCoordinatorDoc"
</code>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
Only available for specific
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-current-op-cmd-commit-coord-operation" target="_self">
<span>
coordination operation
<!-- -->
.
</span>
</a>
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.twoPhaseCommitCoordinator.startTime
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.twoPhaseCommitCoordinator.startTime" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.twoPhaseCommitCoordinator.startTime">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The start date and time of the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.twoPhaseCommitCoordinator.action" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
action
</code>
.
</span>
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
Only available for specific
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-current-op-cmd-commit-coord-operation" target="_self">
<span>
coordination operation
<!-- -->
.
</span>
</a>
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.twoPhaseCommitCoordinator.numParticipants
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.twoPhaseCommitCoordinator.numParticipants" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.twoPhaseCommitCoordinator.numParticipants">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Number of shards participating in this commit.
</p>
<p class="leafygreen-ui-1kp3ins">
Only available for the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-current-op-cmd-commit-coord-metrics" target="_self">
<span>
commit coordination metrics
<!-- -->
.
</span>
</a>
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.twoPhaseCommitCoordinator.state
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.twoPhaseCommitCoordinator.state" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.twoPhaseCommitCoordinator.state">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The current step/state of the commit coordination process.
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:20%"/>
<col style="width:80%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Step/stage
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
inactive
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Not actively part of a commit.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
writingParticipantList
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Writing a local record of the list of shards that are part
of this multi-shard transaction.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
waitingForVotes
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Waiting for the participants to respond with vote to commit or abort.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
writingDecision
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Writing a local record of the coordinator's decision to commit or
abort based on votes.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
waitingForDecisionAck
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Waiting for participants to acknowledge the coordinator's
decision to commit or abort.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
deletingCoordinatorDoc
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Deleting the local record of commit decision.
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<p class="leafygreen-ui-1kp3ins">
Only available for the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-current-op-cmd-commit-coord-metrics" target="_self">
<span>
commit coordination metrics
<!-- -->
.
</span>
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
See also
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.twoPhaseCommitCoordinator.stepDurations" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
currentOp.twoPhaseCommitCoordinator.stepDurations
</code>
.
</span>
</a>
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.twoPhaseCommitCoordinator.commitStartTime
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.twoPhaseCommitCoordinator.commitStartTime" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.twoPhaseCommitCoordinator.commitStartTime">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The date and time when the commit started.
</p>
<p class="leafygreen-ui-1kp3ins">
Only available for the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-current-op-cmd-commit-coord-metrics" target="_self">
<span>
commit coordination metrics
<!-- -->
.
</span>
</a>
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.twoPhaseCommitCoordinator.hasRecoveredFromFailover
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.twoPhaseCommitCoordinator.hasRecoveredFromFailover" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.twoPhaseCommitCoordinator.hasRecoveredFromFailover">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
A boolean that indicates whether the commit coordination was
restarted due to failover on the shard that is coordinating the
commit.
</p>
<p class="leafygreen-ui-1kp3ins">
If
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.twoPhaseCommitCoordinator.hasRecoveredFromFailover" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
hasRecoveredFromFailover
</code>
</span>
</a>
is true, then the times specified in
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.twoPhaseCommitCoordinator.stepDurations" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
currentOp.twoPhaseCommitCoordinator.stepDurations
</code>
</span>
</a>
may not
be accurate for all steps.
</p>
<p class="leafygreen-ui-1kp3ins">
Only available for the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-current-op-cmd-commit-coord-metrics" target="_self">
<span>
commit coordination metrics
<!-- -->
.
</span>
</a>
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.twoPhaseCommitCoordinator.stepDurations
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.twoPhaseCommitCoordinator.stepDurations" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.twoPhaseCommitCoordinator.stepDurations">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
A document that contains the duration, in microseconds, of the
commit coordination
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.twoPhaseCommitCoordinator.state" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
steps/state
</code>
</span>
</a>
completed or in
progress:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"\"stepDurations\" : {\n \"writingParticipantListMicros\" : NumberLong(17801),\n \"totalCommitDurationMicros\" : NumberLong(42488463),\n \"waitingForVotesMicros\" : NumberLong(30378502),\n \"writingDecisionMicros\" : NumberLong(15015),\n \"waitingForDecisionAcksMicros\" : NumberLong(12077145),\n \"deletingCoordinatorDocMicros\" : NumberLong(6009)\n},","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string">"stepDurations"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"writingParticipantListMicros"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">NumberLong</span>(<span class="lg-highlight-number">17801</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"totalCommitDurationMicros"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">NumberLong</span>(<span class="lg-highlight-number">42488463</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"waitingForVotesMicros"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">NumberLong</span>(<span class="lg-highlight-number">30378502</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"writingDecisionMicros"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">NumberLong</span>(<span class="lg-highlight-number">15015</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"waitingForDecisionAcksMicros"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">NumberLong</span>(<span class="lg-highlight-number">12077145</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"deletingCoordinatorDocMicros"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">NumberLong</span>(<span class="lg-highlight-number">6009</span>)</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}<!-- -->,</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
If
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.twoPhaseCommitCoordinator.hasRecoveredFromFailover" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
currentOp.twoPhaseCommitCoordinator.hasRecoveredFromFailover
</code>
</span>
</a>
is true, then the times specified in
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.twoPhaseCommitCoordinator.stepDurations" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
stepDurations
</code>
</span>
</a>
may not
be accurate for all steps.
</p>
<p class="leafygreen-ui-1kp3ins">
For a coordinator in an
<code class="leafygreen-ui-1l06pbn">
inactive
</code>
state, the document is empty:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"\"stepDurations\" : {\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string">"stepDurations"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Only available for the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-current-op-cmd-commit-coord-metrics" target="_self">
<span>
commit coordination metrics
<!-- -->
.
</span>
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
See
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.twoPhaseCommitCoordinator.state" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
currentOp.twoPhaseCommitCoordinator.state
</code>
.
</span>
</a>
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.twoPhaseCommitCoordinator.decision
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.twoPhaseCommitCoordinator.decision" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
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<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
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<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.twoPhaseCommitCoordinator.decision">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
A document that contains the commit/abort decision, for example:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For a commit decision:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"\"decision\" : {\n \"decision\" : \"commit\",\n \"commitTimestamp\" : Timestamp(1572034669, 3)\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string">"decision"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"decision"</span> <!-- -->: <span class="lg-highlight-string">"commit"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"commitTimestamp"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">Timestamp</span>(<span class="lg-highlight-number">1572034669</span>, <span class="lg-highlight-number">3</span>)</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
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</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
For an abort decision:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"\"decision\" : {\n \"decision\" : \"abort\",\n \"abortStatus\" : {\n \"code\" : 282,\n \"codeName\" : \"TransactionCoordinatorReachedAbortDecision\",\n \"errmsg\" : \"Transaction exceeded deadline\"\n }\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string">"decision"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"decision"</span> <!-- -->: <span class="lg-highlight-string">"abort"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"abortStatus"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"code"</span> <!-- -->: <span class="lg-highlight-number">282</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"codeName"</span> <!-- -->: <span class="lg-highlight-string">"TransactionCoordinatorReachedAbortDecision"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"errmsg"</span> <!-- -->: <span class="lg-highlight-string">"Transaction exceeded deadline"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
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</div>
</div>
</div>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
Only available for the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-current-op-cmd-commit-coord-metrics" target="_self">
<span>
commit coordination metrics
<!-- -->
.
</span>
</a>
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.twoPhaseCommitCoordinator.deadline
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.twoPhaseCommitCoordinator.deadline" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.twoPhaseCommitCoordinator.deadline">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The date and time by which the commit must finish.
</p>
<p class="leafygreen-ui-1kp3ins">
Only available for the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-current-op-cmd-commit-coord-metrics" target="_self">
<span>
commit coordination metrics
<!-- -->
.
</span>
</a>
</p>
</dd>
</dl>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.opid
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.opid" title="Permalink to this definition">
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<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.opid">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The identifier for the operation. You can pass this value to
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.killOp/#mongodb-method-db.killOp">
<code class="leafygreen-ui-1l06pbn">
db.killOp()
</code>
</a>
in
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://www.mongodb.com/docs/mongodb-shell/#mongodb-binary-bin.mongosh" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
mongosh
</code>
</span>
</a>
to terminate the
operation.
</p>
<div class="leafygreen-ui-1sjx7ru" role="note">
<h2 class="leafygreen-ui-29m78u">
Warning
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Terminate running operations with extreme caution. Only use
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.killOp/#mongodb-method-db.killOp">
<code class="leafygreen-ui-1l06pbn">
db.killOp()
</code>
</a>
to terminate operations initiated by clients
and
<em>
do not
</em>
terminate internal database operations.
</p>
</div>
</div>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.active
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.active" title="Permalink to this definition">
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<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.active">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
A boolean value specifying whether the operation has started. Value
is
<code class="leafygreen-ui-1l06pbn">
true
</code>
if the operation has started or
<code class="leafygreen-ui-1l06pbn">
false
</code>
if the
operation is idle, such as an idle connection or an internal thread
that is currently idle. An operation can be active even if the
operation has yielded to another operation. For some inactive
background threads, such as an inactive
<code class="leafygreen-ui-1l06pbn">
signalProcessingThread
</code>
,
MongoDB suppresses various empty fields.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.secs_running
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.secs_running" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.secs_running">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The duration of the operation in seconds. MongoDB calculates this
value by subtracting the current time from the start time of the
operation.
</p>
<p class="leafygreen-ui-1kp3ins">
Only appears if the operation is running; i.e. if
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.active" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
active
</code>
</span>
</a>
is
<code class="leafygreen-ui-1l06pbn">
true
</code>
.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.microsecs_running
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.microsecs_running" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.microsecs_running">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The duration of the operation in microseconds. MongoDB calculates this
value by subtracting the current time from the start time of the
operation.
</p>
<p class="leafygreen-ui-1kp3ins">
Only appears if the operation is running; i.e. if
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.active" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
active
</code>
</span>
</a>
is
<code class="leafygreen-ui-1l06pbn">
true
</code>
.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.op
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.op" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.op">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
A string that identifies the specific operation type. Only present
if
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.type" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
currentOp.type
</code>
</span>
</a>
is
<code class="leafygreen-ui-1l06pbn">
op
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
The possible values are:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
"none"
</code>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
"update"
</code>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
"insert"
</code>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
"query"
</code>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
"command"
</code>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
"getmore"
</code>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
"remove"
</code>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
"killcursors"
</code>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
"query"
</code>
operations include read operations.
</p>
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
"command"
</code>
operations include most
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/#std-label-database-commands">
commands
</a>
such as the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/createIndexes/#mongodb-dbcommand-dbcmd.createIndexes">
<code class="leafygreen-ui-1l06pbn">
createIndexes
</code>
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/findAndModify/#mongodb-dbcommand-dbcmd.findAndModify">
<code class="leafygreen-ui-1l06pbn">
findAndModify
</code>
.
</a>
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.ns
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.ns" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.ns">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-namespace">
namespace
</a>
the operation targets. A namespace consists of
the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-database">
database
</a>
name and the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-collection">
collection
</a>
name
concatenated with a dot (
<code class="leafygreen-ui-1l06pbn">
.
</code>
); that is,
<code class="leafygreen-ui-1l06pbn">
"<database>.<collection>"
</code>
.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.command
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.command" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.command">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
A document containing the full command object associated with this
operation.
</p>
<p class="leafygreen-ui-1kp3ins">
For example, the following output contains the command object for a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/find/#mongodb-dbcommand-dbcmd.find">
<code class="leafygreen-ui-1l06pbn">
find
</code>
</a>
operation on a collection named
<code class="leafygreen-ui-1l06pbn">
items
</code>
in a
database named
<code class="leafygreen-ui-1l06pbn">
test
</code>
:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"\"command\" : {\n \"find\" : \"items\",\n \"filter\" : {\n \"sku\" : 1403978\n },\n ...\n \"$db\" : \"test\"\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string">"command"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"find"</span> <!-- -->: <span class="lg-highlight-string">"items"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"filter"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"sku"</span> <!-- -->: <span class="lg-highlight-number">1403978</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"$db"</span> <!-- -->: <span class="lg-highlight-string">"test"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The following example output contains the command object for a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/getMore/#mongodb-dbcommand-dbcmd.getMore">
<code class="leafygreen-ui-1l06pbn">
getMore
</code>
</a>
operation generated by
a command with cursor ID
<code class="leafygreen-ui-1l06pbn">
19234103609
</code>
on a collection named
<code class="leafygreen-ui-1l06pbn">
items
</code>
in a database named
<code class="leafygreen-ui-1l06pbn">
test
</code>
:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"\"command\" : {\n \"getMore\" : NumberLong(\"19234103609\"),\n \"collection\" : \"items\",\n \"batchSize\" : 10,\n ...\n \"$db\" : \"test\"\n},","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string">"command"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"getMore"</span> <!-- -->: <span class="lg-highlight-title lg-highlight-class">NumberLong</span>(<span class="lg-highlight-string">"19234103609"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"collection"</span> <!-- -->: <span class="lg-highlight-string">"items"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"batchSize"</span> <!-- -->: <span class="lg-highlight-number">10</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->...</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"$db"</span> <!-- -->: <span class="lg-highlight-string">"test"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">}<!-- -->,</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
If the command document exceeds 1 kilobyte, the
document has the following form:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"\"command\" : {\n \"$truncated\": <string>,\n \"comment\": <string>\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string">"command"</span> <!-- -->: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"$truncated"</span>: <<!-- -->string<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"comment"</span>: <<!-- -->string<!-- -->></td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
$truncated
</code>
field contains a string summary of the document excluding
the document's
<code class="leafygreen-ui-1l06pbn">
comment
</code>
field if present. If the summary still exceeds
1 kilobyte then it is further truncated, denoted by an ellipsis
(...) at the end of the string.
</p>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
comment
</code>
field is present if a comment was passed to the operation.
A comment may be attached to any
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/#std-label-database-commands">
database command
<!-- -->
.
</a>
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.planSummary
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.planSummary" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.planSummary">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Specifies whether the cursor uses a collection scan
(
<code class="leafygreen-ui-1l06pbn">
COLLSCAN
</code>
) or an index scan (
<code class="leafygreen-ui-1l06pbn">
IXSCAN { ... }
</code>
).
</p>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
IXSCAN
</code>
also includes the specification document of the index
used.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.prepareReadConflicts
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.prepareReadConflicts" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.prepareReadConflicts">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The number of times the current operation had to wait for a
prepared transaction with a write to commit or abort.
</p>
<p class="leafygreen-ui-1kp3ins">
While waiting, the current operation continues to hold any necessary
locks and storage engine resources.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.writeConflicts
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.writeConflicts" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.writeConflicts">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The number of times the current operation conflicted with
another write operation on the same document.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.cursor
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.cursor" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.cursor">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
A document that contains the cursor information for
<code class="leafygreen-ui-1l06pbn">
getmore
</code>
operations; i.e. where
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.op" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
op
</code>
</span>
</a>
is
<code class="leafygreen-ui-1l06pbn">
getmore
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
If reporting on a
<code class="leafygreen-ui-1l06pbn">
getmore
</code>
operation before the
<code class="leafygreen-ui-1l06pbn">
getmore
</code>
has
accessed its cursor information, the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.cursor" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
cursor
</code>
</span>
</a>
field
is not available.
</p>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.cursor.cursorId
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.cursor.cursorId" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.cursor.cursorId">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The ID of the cursor.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.cursor.createdDate
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.cursor.createdDate" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.cursor.createdDate">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The date and time when the cursor was created.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.cursor.lastAccessDate
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.cursor.lastAccessDate" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.cursor.lastAccessDate">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The date and time when the cursor was last used.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.cursor.nDocsReturned
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.cursor.nDocsReturned" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.cursor.nDocsReturned">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The cumulative number of documents returned by the cursor.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.cursor.nBatchesReturned
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.cursor.nBatchesReturned" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.cursor.nBatchesReturned">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The cumulative number of batches returned by the cursor.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.cursor.noCursorTimeout
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.cursor.noCursorTimeout" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.cursor.noCursorTimeout">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The flag that indicates that the cursor will not timeout when idle;
i.e. if the cursor has the
<code class="leafygreen-ui-1l06pbn">
noTimeout
</code>
option set.
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
If true, the cursor does not time out when idle.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
If false, the cursor times out when idle.
</p>
</li>
</ul>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/cursor.addOption/#mongodb-method-cursor.addOption">
<code class="leafygreen-ui-1l06pbn">
cursor.addOption()
</code>
</a>
</p>
</div>
</div>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.cursor.tailable
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.cursor.tailable" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.cursor.tailable">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The flag that indicates if the cursor is a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/tailable-cursors/#std-label-tailable-cursors-landing-page">
tailable cursor
</a>
for a capped collection. Tailable cursors
remain open after the client exhausts the results in the initial
cursor.
</p>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/find/#mongodb-dbcommand-dbcmd.find">
<code class="leafygreen-ui-1l06pbn">
find
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/cursor.tailable/#mongodb-method-cursor.tailable">
<code class="leafygreen-ui-1l06pbn">
cursor.tailable()
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/cursor.addOption/#mongodb-method-cursor.addOption">
<code class="leafygreen-ui-1l06pbn">
cursor.addOption()
</code>
</a>
</p>
</li>
</ul>
</div>
</div>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.cursor.awaitData
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.cursor.awaitData" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.cursor.awaitData">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The flag that indicates whether the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/tailable-cursors/#std-label-tailable-cursors-landing-page">
tailable cursor
</a>
should temporarily block a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/getMore/#mongodb-dbcommand-dbcmd.getMore">
<code class="leafygreen-ui-1l06pbn">
getMore
</code>
</a>
command on the cursor while waiting for new
data rather than returning no data.
</p>
<p class="leafygreen-ui-1kp3ins">
For non-tailable cursors, the value is always false.
</p>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/find/#mongodb-dbcommand-dbcmd.find">
<code class="leafygreen-ui-1l06pbn">
find
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/cursor.tailable/#mongodb-method-cursor.tailable">
<code class="leafygreen-ui-1l06pbn">
cursor.tailable()
</code>
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/cursor.addOption/#mongodb-method-cursor.addOption">
<code class="leafygreen-ui-1l06pbn">
cursor.addOption()
</code>
</a>
</p>
</li>
</ul>
</div>
</div>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.cursor.originatingCommand
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.cursor.originatingCommand" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.cursor.originatingCommand">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
originatingCommand
</code>
field contains the full command object
(e.g.
<code class="leafygreen-ui-1l06pbn">
find
</code>
or
<code class="leafygreen-ui-1l06pbn">
aggregate
</code>
) which originally created the
cursor.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.cursor.planSummary
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.cursor.planSummary" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.cursor.planSummary">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Specifies whether the cursor uses a collection scan
(
<code class="leafygreen-ui-1l06pbn">
COLLSCAN
</code>
) or an index scan (
<code class="leafygreen-ui-1l06pbn">
IXSCAN { ... }
</code>
).
</p>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
IXSCAN
</code>
also includes the specification document of the index
used.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.cursor.operationUsingCursorId
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.cursor.operationUsingCursorId" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.cursor.operationUsingCursorId">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
opid
</code>
of the operation using the cursor.
</p>
<p class="leafygreen-ui-1kp3ins">
Only present if the cursor is not idle.
</p>
</dd>
</dl>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.locks
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.locks" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.locks">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.locks" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
locks
</code>
</span>
</a>
document reports the type and mode of
locks the operation currently holds. The possible lock types are as
follows:
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:20%"/>
<col style="width:80%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Lock Type
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
ParallelBatchWriterMode
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Represents a lock for parallel batch writer mode.
</p>
<p class="leafygreen-ui-1kp3ins">
In earlier versions, PBWM information was reported as part of
the
<code class="leafygreen-ui-1l06pbn">
Global
</code>
lock information.
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
ReplicationStateTransition
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Represents lock taken for
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/replica-states/">
replica set member state
</a>
transitions.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
Global
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Represents global lock.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
Database
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Represents database lock.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
Collection
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Represents collection lock.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
Mutex
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Represents mutex.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
Metadata
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Represents metadata lock.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
DDLDatabase
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Represents a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-DDL--Data-Definition-Language-">
DDL
</a>
database lock.
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
7.1
</em>
.
</p>
</div>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
DDLCollection
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Represents a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-DDL--Data-Definition-Language-">
DDL
</a>
collection
lock.
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
7.1
</em>
.
</p>
</div>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
oplog
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Represents lock on the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-oplog">
oplog
<!-- -->
.
</a>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<p class="leafygreen-ui-1kp3ins">
The possible modes are as follows:
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:20%"/>
<col style="width:80%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Lock Mode
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
R
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Represents Shared (S) lock.
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
W
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Represents Exclusive (X) lock.
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
r
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Represents Intent Shared (IS) lock.
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
w
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Represents Intent Exclusive (IX) lock.
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.admissionPriority
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.admissionPriority" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.admissionPriority">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
For internal use. The value is the priority an operation has when it
tries to acquire a ticket in order to perform a storage engine
action.
</p>
<p class="leafygreen-ui-1kp3ins">
Possible values are: "low", "normal", and "immediate". Only
operations with a "low" value are reported.
</p>
<p class="leafygreen-ui-1kp3ins">
Sample
<code class="leafygreen-ui-1l06pbn">
currentOp
</code>
output:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n type: 'op',\n host: 'ip-10-122-5-147:27017',\n desc: 'JournalFlusher',\n active: true,\n currentOpTime: '2022-10-11T12:45:52.053+00:00',\n opid: 201,\n op: 'none',\n ns: '',\n command: {},\n numYields: 0,\n admissionPriority: 'low',\n locks: {},\n waitingForLock: false,\n lockStats: {},\n waitingForFlowControl: false,\n flowControlStats: {}\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">type</span>: <span class="lg-highlight-string">'op'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">host</span>: <span class="lg-highlight-string">'ip-10-122-5-147:27017'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">desc</span>: <span class="lg-highlight-string">'JournalFlusher'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">active</span>: <span class="lg-highlight-literal">true</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">currentOpTime</span>: <span class="lg-highlight-string">'2022-10-11T12:45:52.053+00:00'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">opid</span>: <span class="lg-highlight-number">201</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">op</span>: <span class="lg-highlight-string">'none'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">ns</span>: <span class="lg-highlight-string">''</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">command</span>: <!-- -->{<!-- -->}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">numYields</span>: <span class="lg-highlight-number">0</span>,</td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">admissionPriority</span>: <span class="lg-highlight-string">'low'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">locks</span>: <!-- -->{<!-- -->}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">waitingForLock</span>: <span class="lg-highlight-literal">false</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">lockStats</span>: <!-- -->{<!-- -->}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">waitingForFlowControl</span>: <span class="lg-highlight-literal">false</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">flowControlStats</span>: <!-- -->{<!-- -->}</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The
<code class="leafygreen-ui-1l06pbn">
admissionPriority
</code>
value is also reported in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/log-messages/#std-label-log-message-slow-ops">
slow
log
<!-- -->
.
</a>
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
6.3
</em>
.
</p>
</div>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.waitingForLock
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.waitingForLock" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.waitingForLock">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Returns a boolean value.
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.waitingForLock" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
waitingForLock
</code>
</span>
</a>
is
<code class="leafygreen-ui-1l06pbn">
true
</code>
if the
operation is waiting for a lock and
<code class="leafygreen-ui-1l06pbn">
false
</code>
if the operation has
the required lock.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.msg
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.msg" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.msg">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.msg" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
msg
</code>
</span>
</a>
provides a message that describes the status and
progress of the operation. In the case of indexing or mapReduce
operations, the field reports the completion percentage.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.progress
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.progress" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.progress">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Reports on the progress of mapReduce or indexing operations. The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.progress" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
progress
</code>
</span>
</a>
fields corresponds to the completion percentage in
the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.msg" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
msg
</code>
</span>
</a>
field. The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.progress" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
progress
</code>
</span>
</a>
specifies the following
information:
</p>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.progress.done
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.progress.done" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.progress.done">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Reports the number completed.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.progress.total
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.progress.total" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.progress.total">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Reports the total number.
</p>
</dd>
</dl>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.killPending
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.killPending" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.killPending">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Returns
<code class="leafygreen-ui-1l06pbn">
true
</code>
if the operation is currently flagged for
termination. When the operation encounters its next safe termination point, the
operation will terminate.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.numYields
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.numYields" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.numYields">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.numYields" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
numYields
</code>
</span>
</a>
is a counter that reports the number of times the
operation has yielded to allow other operations to complete.
</p>
<p class="leafygreen-ui-1kp3ins">
Typically, operations yield when they need access to data that
MongoDB has not yet fully read into memory. This allows
other operations that have data in memory to complete quickly
while MongoDB reads in data for the yielding operation.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.dataThroughputLastSecond
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.dataThroughputLastSecond" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.dataThroughputLastSecond">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Amount of data (in MiB) processed by the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/validate/#mongodb-dbcommand-dbcmd.validate">
<code class="leafygreen-ui-1l06pbn">
validate
</code>
</a>
operation in the last second. Only available for a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/validate/#mongodb-dbcommand-dbcmd.validate">
<code class="leafygreen-ui-1l06pbn">
validate
</code>
</a>
operation that is currently scanning
documents. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"\"msg\" : \"Validate: scanning documents Validate: scanning documents: 7258/24000 30%\",\n\"progress\" : {\n \"done\" : 7258,\n \"total\" : 24000\n},\n\"numYields\" : 0,\n\"dataThroughputLastSecond\" : 15.576952934265137,\n\"dataThroughputAverage\" : 15.375944137573242,","programmingLanguage":"JSON"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light json leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">"msg"</span> <span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"Validate: scanning documents Validate: scanning documents: 7258/24000 30%"</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">"progress"</span> <span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-punctuation">{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"done"</span> <span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-number">7258</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"total"</span> <span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-number">24000</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-punctuation">}</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">"numYields"</span> <span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-number">0</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">"dataThroughputLastSecond"</span> <span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-number">15.576952934265137</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">"dataThroughputAverage"</span> <span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-number">15.375944137573242</span><span class="lg-highlight-punctuation">,</span></td></tr></tbody></table></code></pre>
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</div>
</button>
</div>
</div>
</div>
</div>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.dataThroughputAverage
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.dataThroughputAverage" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.dataThroughputAverage">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The average amount of data (in MiB) processed by the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/validate/#mongodb-dbcommand-dbcmd.validate">
<code class="leafygreen-ui-1l06pbn">
validate
</code>
</a>
operation. Only available for a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/validate/#mongodb-dbcommand-dbcmd.validate">
<code class="leafygreen-ui-1l06pbn">
validate
</code>
</a>
operation that is currently scanning
documents. For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"\"msg\" : \"Validate: scanning documents Validate: scanning documents: 7258/24000 30%\",\n\"progress\" : {\n \"done\" : 7258,\n \"total\" : 24000\n},\n\"numYields\" : 0,\n\"dataThroughputLastSecond\" : 15.576952934265137,\n\"dataThroughputAverage\" : 15.375944137573242,","programmingLanguage":"JSON"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light json leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">"msg"</span> <span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"Validate: scanning documents Validate: scanning documents: 7258/24000 30%"</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">"progress"</span> <span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-punctuation">{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"done"</span> <span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-number">7258</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"total"</span> <span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-number">24000</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-punctuation">}</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">"numYields"</span> <span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-number">0</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">"dataThroughputLastSecond"</span> <span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-number">15.576952934265137</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class="leafygreen-ui-1wr1lm6"><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">"dataThroughputAverage"</span> <span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-number">15.375944137573242</span><span class="lg-highlight-punctuation">,</span></td></tr></tbody></table></code></pre>
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</div>
</div>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.fsyncLock
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.fsyncLock" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.fsyncLock">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Specifies if database is currently locked for
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.fsyncLock/#mongodb-method-db.fsyncLock">
<code class="leafygreen-ui-1l06pbn">
fsync
write/snapshot
</code>
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
Only appears if locked; i.e. if
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.fsyncLock" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
fsyncLock
</code>
</span>
</a>
is
<code class="leafygreen-ui-1l06pbn">
true
</code>
.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.info
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.info" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.info">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Information regarding how to unlock database from
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.fsyncLock/#mongodb-method-db.fsyncLock">
<code class="leafygreen-ui-1l06pbn">
db.fsyncLock()
</code>
</a>
. Only appears if
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.fsyncLock" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
fsyncLock
</code>
</span>
</a>
is
<code class="leafygreen-ui-1l06pbn">
true
</code>
.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.lockStats
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.lockStats" title="Permalink to this definition">
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<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.lockStats">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
For each lock type and mode (see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.locks" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
currentOp.locks
</code>
</span>
</a>
for
descriptions of lock types and modes), returns the following
information:
</p>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.lockStats.acquireCount
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.lockStats.acquireCount" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.lockStats.acquireCount">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Number of times the operation acquired the lock in the specified
mode.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.lockStats.acquireWaitCount
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.lockStats.acquireWaitCount" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.lockStats.acquireWaitCount">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Number of times the operation had to wait for the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.lockStats.acquireCount" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
acquireCount
</code>
</span>
</a>
lock acquisitions
because the locks were held in a conflicting mode.
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.lockStats.acquireWaitCount" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
acquireWaitCount
</code>
</span>
</a>
is less than or
equal to
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.lockStats.acquireCount" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
acquireCount
</code>
.
</span>
</a>
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.lockStats.timeAcquiringMicros
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.lockStats.timeAcquiringMicros" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.lockStats.timeAcquiringMicros">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Cumulative time in microseconds that the operation had to wait to
acquire the locks.
</p>
<p class="leafygreen-ui-1kp3ins">
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.lockStats.timeAcquiringMicros" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
timeAcquiringMicros
</code>
</span>
</a>
divided by
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-data-currentOp.lockStats.acquireWaitCount" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
acquireWaitCount
</code>
</span>
</a>
gives an
approximate average wait time for the particular lock mode.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.lockStats.deadlockCount
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.lockStats.deadlockCount" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.lockStats.deadlockCount">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Number of times the operation encountered deadlocks while waiting
for lock acquisitions.
</p>
</dd>
</dl>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.waitingForFlowControl
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.waitingForFlowControl" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.waitingForFlowControl">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
A boolean that indicates if the operation is in the process of waiting for
<a class="leafygreen-ui-tqgtui" href="/docs/manual/replication/#std-label-replication-flow-control">
flow control
<!-- -->
.
</a>
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.flowControlStats
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.flowControlStats" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.flowControlStats">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The flow control statistics for this operation.
</p>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.flowControlStats.acquireCount
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.flowControlStats.acquireCount" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.flowControlStats.acquireCount">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The number of times this operation acquired a ticket.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.flowControlStats.acquireWaitCount
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.flowControlStats.acquireWaitCount" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.flowControlStats.acquireWaitCount">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The number of times this operation waited to acquire a ticket.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.flowControlStats.timeAcquiringMicros
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.flowControlStats.timeAcquiringMicros" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.flowControlStats.timeAcquiringMicros">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The total time this operation has waited to acquire a ticket.
</p>
</dd>
</dl>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.totalOperationTimeElapsedSecs
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.totalOperationTimeElapsedSecs" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.totalOperationTimeElapsedSecs">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The total time elapsed, in seconds, for the current
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/sharding-reshard-a-collection/#std-label-sharding-resharding">
resharding
operation
</a>
. The time is set to 0 when a new
resharding operation starts.
</p>
<p class="leafygreen-ui-1kp3ins">
Only present if a resharding operation is taking place.
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
5.0
</em>
.
</p>
</div>
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 6.1, this metric is also available on the
coordinator during resharding.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.updatesApplied
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.updatesApplied" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.updatesApplied">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The number of updates applied.
</p>
<p class="leafygreen-ui-1kp3ins">
Only present on a recipient shard when a resharding operation is
taking place.
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
6.1
</em>
.
</p>
</div>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.remainingOperationTimeEstimatedSecs
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.remainingOperationTimeEstimatedSecs" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.remainingOperationTimeEstimatedSecs">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
remainingOperationTimeEstimatedSecs
</code>
: estimated time remaining in
seconds for the current
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/sharding-reshard-a-collection/#std-label-sharding-resharding">
resharding operation
</a>
. It is returned as
<code class="leafygreen-ui-1l06pbn">
-1
</code>
when a new resharding
operation starts.
</p>
<p class="leafygreen-ui-1kp3ins">
Starting in:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
MongoDB 5.0, but before MongoDB 6.1,
<code class="leafygreen-ui-1l06pbn">
remainingOperationTimeEstimatedSecs
</code>
is only available on a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/sh.reshardCollection/#std-label-resharding-process-details">
recipient shard
</a>
during a
resharding operation.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
MongoDB 6.1,
<code class="leafygreen-ui-1l06pbn">
remainingOperationTimeEstimatedSecs
</code>
is also available
on the coordinator during a resharding operation.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
The resharding operation performs these phases in order:
</p>
<ol class="leafygreen-ui-rioki0" type="1">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The clone phase duplicates the current collection data.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The catch-up phase applies any pending write operations to the
resharded collection.
</p>
</li>
</ol>
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
remainingOperationTimeEstimatedSecs
</code>
is set to a pessimistic time
estimate:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
The catch-up phase time estimate is set to the clone phase time, which
is a relatively long time.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
In practice, if there are only a few pending write operations, the
actual catch-up phase time is relatively short.
</p>
</li>
</ul>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
5.0
</em>
.
</p>
</div>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.allShardsLowestRemainingOperationTimeEstimatedSecs
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.allShardsLowestRemainingOperationTimeEstimatedSecs" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.allShardsLowestRemainingOperationTimeEstimatedSecs">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Calculated across all shards, the lowest estimate of the number of
seconds remaining.
</p>
<p class="leafygreen-ui-1kp3ins">
Only present on a coordinator when a resharding operation is
taking place.
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
6.1
</em>
.
</p>
</div>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.allShardsHighestRemainingOperationTimeEstimatedSecs
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.allShardsHighestRemainingOperationTimeEstimatedSecs" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.allShardsHighestRemainingOperationTimeEstimatedSecs">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Calculated across all shards, the highest estimate of the number of
seconds remaining.
</p>
<p class="leafygreen-ui-1kp3ins">
Only present on a coordinator when a resharding operation is
taking place.
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
6.1
</em>
.
</p>
</div>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.approxDocumentsToCopy
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.approxDocumentsToCopy" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.approxDocumentsToCopy">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The approximate number of documents to be copied from the donor
shards to the recipient shards during the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/sharding-reshard-a-collection/#std-label-sharding-resharding">
resharding operation
</a>
. This number is an estimate that is set at the
beginning of the resharding operation and does not change after it
has been set. The number is set to 0 when a new resharding operation
starts. It is possible for
<code class="leafygreen-ui-1l06pbn">
$currentOp.documentsCopied
</code>
and
<code class="leafygreen-ui-1l06pbn">
$currentOp.bytesCopied
</code>
to end up exceeding
<code class="leafygreen-ui-1l06pbn">
$currentOp.approxDocumentsToCopy
</code>
and
<code class="leafygreen-ui-1l06pbn">
$currentOp.approxBytesToCopy
</code>
, respectively, if
the post-resharding data distribution is not perfectly uniform.
</p>
<p class="leafygreen-ui-1kp3ins">
Only present on a recipient shard when a resharding operation is
taking place.
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
5.0
</em>
.
</p>
</div>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.documentsCopied
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.documentsCopied" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.documentsCopied">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The number of documents copied form donor shards to recipient shards
during the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/sharding-reshard-a-collection/#std-label-sharding-resharding">
resharding operation
</a>
. The
number is set to 0 when a new resharding operation starts.
</p>
<p class="leafygreen-ui-1kp3ins">
Only present on a recipient shard when a resharding operation is
taking place.
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
5.0
</em>
.
</p>
</div>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.approxBytesToCopy
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.approxBytesToCopy" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.approxBytesToCopy">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The approximate number of bytes to be copied from the donor shards to
the recipient shards during the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/sharding-reshard-a-collection/#std-label-sharding-resharding">
resharding operation
</a>
. This number is an estimate that is set at the
beginning of the resharding operation and does not change after it
has been set. The number is set to 0 when a new resharding operation
starts. It is possible for
<code class="leafygreen-ui-1l06pbn">
$currentOp.documentsCopied
</code>
and
<code class="leafygreen-ui-1l06pbn">
$currentOp.bytesCopied
</code>
to end up exceeding
<code class="leafygreen-ui-1l06pbn">
$currentOp.approxDocumentsToCopy
</code>
and
<code class="leafygreen-ui-1l06pbn">
$currentOp.approxBytesToCopy
</code>
, respectively, if the
post-resharding data distribution is not perfectly uniform.
</p>
<p class="leafygreen-ui-1kp3ins">
Only present on a recipient shard when a resharding operation is
taking place.
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
5.0
</em>
.
</p>
</div>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.bytesCopied
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.bytesCopied" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.bytesCopied">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The number of bytes copied from donor shards to recipient shards
during the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/sharding-reshard-a-collection/#std-label-sharding-resharding">
resharding operation
</a>
. The
number is set to 0 when a new resharding operation starts.
</p>
<p class="leafygreen-ui-1kp3ins">
Only present on a recipient shard when a resharding operation is
taking place.
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
5.0
</em>
.
</p>
</div>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.countWritesToStashCollections
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.countWritesToStashCollections" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.countWritesToStashCollections">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The number of writes to the recipient
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-stash-collection">
stash collections
<!-- -->
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
Only present on a recipient shard when a resharding operation is
taking place.
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
6.1
</em>
.
</p>
</div>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.countWritesDuringCriticalSection
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.countWritesDuringCriticalSection" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.countWritesDuringCriticalSection">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The number of writes attempted during the donor's critical
section.
</p>
<p class="leafygreen-ui-1kp3ins">
Only present on a donor shard when a resharding operation is
taking place.
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
6.1
</em>
.
</p>
</div>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.countReadsDuringCriticalSection
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.countReadsDuringCriticalSection" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.countReadsDuringCriticalSection">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The number of reads attempted during the donor's critical
section.
</p>
<p class="leafygreen-ui-1kp3ins">
Only present on a donor shard when a resharding operation is
taking place.
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
6.1
</em>
.
</p>
</div>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.deletesApplied
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.deletesApplied" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.deletesApplied">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The number of deletes applied to the temporary resharding collection.
Each oplog entry that involves a delete increments the counter by 1.
</p>
<p class="leafygreen-ui-1kp3ins">
Only present on a recipient shard when a resharding operation is
taking place.
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
6.1
</em>
.
</p>
</div>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.insertsApplied
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.insertsApplied" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.insertsApplied">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The number of inserts applied to the temporary resharding collection.
Each oplog entry that involves an insert increments the counter by 1.
</p>
<p class="leafygreen-ui-1kp3ins">
Only present on a recipient shard when a resharding operation is
taking place.
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
6.1
</em>
.
</p>
</div>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.totalCopyTimeElapsedSecs
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.totalCopyTimeElapsedSecs" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.totalCopyTimeElapsedSecs">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The total elapsed time, in seconds, for ongoing data copy tasks from
donor shards to recipient shards for the current
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/sharding-reshard-a-collection/#std-label-sharding-resharding">
resharding
operation
</a>
. The time is set to 0 when a new
resharding operation starts.
</p>
<p class="leafygreen-ui-1kp3ins">
Only present on a recipient shard when a resharding operation is
taking place.
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
5.0
</em>
.
</p>
</div>
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 6.1, this metric is also available on the
coordinator during resharding.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.oplogEntriesFetched
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.oplogEntriesFetched" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.oplogEntriesFetched">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The number of entries fetched from the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-oplog">
oplog
</a>
for the current
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/sharding-reshard-a-collection/#std-label-sharding-resharding">
resharding operation
</a>
. The number is set
to 0 when a new resharding operation starts.
</p>
<p class="leafygreen-ui-1kp3ins">
Only present on a recipient shard when a resharding operation is
taking place.
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
5.0
</em>
.
</p>
</div>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.oplogEntriesApplied
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.oplogEntriesApplied" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.oplogEntriesApplied">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The number of entries applied to the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-oplog">
oplog
</a>
for the current
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/sharding-reshard-a-collection/#std-label-sharding-resharding">
resharding operation
</a>
. The number is set
to 0 when a new resharding operation starts.
</p>
<p class="leafygreen-ui-1kp3ins">
Only present on a recipient shard when a resharding operation is
taking place.
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
5.0
</em>
.
</p>
</div>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.totalApplyTimeElapsedSecs
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.totalApplyTimeElapsedSecs" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.totalApplyTimeElapsedSecs">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The total elapsed time, in seconds, for the apply step of the
current
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/sharding-reshard-a-collection/#std-label-sharding-resharding">
resharding operation
</a>
. In the
apply step, recipient shards apply
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-oplog">
oplog
</a>
entries to modify
their data based on new incoming writes from donor shards. The time
is set to 0 when a new resharding operation starts.
</p>
<p class="leafygreen-ui-1kp3ins">
Only present on a recipient shard when a resharding operation is
taking place.
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
5.0
</em>
.
</p>
</div>
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 6.1, this metric is also available on the
coordinator during resharding.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.countWritesDuringCriticalSection
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.countWritesDuringCriticalSection-1" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.countWritesDuringCriticalSection-1">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The number of writes performed in the critical section for the current
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/sharding-reshard-a-collection/#std-label-sharding-resharding">
resharding operation
</a>
. The critical
section prevents new incoming writes to the collection currently
being resharded. The number is set to 0 when a new resharding
operation starts.
</p>
<p class="leafygreen-ui-1kp3ins">
Only present on a donor shard when a resharding operation is taking
place.
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
5.0
</em>
.
</p>
</div>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.totalCriticalSectionTimeElapsedSecs
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.totalCriticalSectionTimeElapsedSecs" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.totalCriticalSectionTimeElapsedSecs">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The total elapsed time, in seconds, for the critical section of the
current
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/sharding-reshard-a-collection/#std-label-sharding-resharding">
resharding operation
</a>
. The
critical section prevents new incoming writes to the collection
currently being resharded. The time is set to 0 when a new
resharding operation starts.
</p>
<p class="leafygreen-ui-1kp3ins">
Only present on a donor shard when a resharding operation is taking
place.
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
5.0
</em>
.
</p>
</div>
<p class="leafygreen-ui-1kp3ins">
Starting in MongoDB 6.1, this metric is also available on the
coordinator during resharding.
</p>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.donorState
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.donorState" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.donorState">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The current state of a donor shard for the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/sharding-reshard-a-collection/#std-label-sharding-resharding">
resharding operation
</a>
. The state is set to
<code class="leafygreen-ui-1l06pbn">
unused
</code>
when a new
resharding operation starts.
</p>
<p class="leafygreen-ui-1kp3ins">
Only present on a donor shard when a resharding operation is taking
place.
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:20%"/>
<col style="width:80%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
State
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
unused
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
The resharding operation is about to start or recovering from
a primary failover.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
preparing-to-donate
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
The donor shard is preparing to donate data to the recipient
shards.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
donating-initial-data
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
The donor shard is donating data to the recipient shards.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
donating-oplog-entries
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
The donor shard is donating
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-oplog">
oplog
</a>
entries to the
recipient shards.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
preparing-to-block-writes
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
The donor shard is about to prevent new incoming write
operations to the collection that is being resharded.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
error
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
An error occurred during the resharding operation.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
blocking-writes
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
The donor shard is preventing new incoming write operations
and the donor shard has notified all recipient shards that new
incoming writes are prevented.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
done
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
The donor shard has dropped the old sharded collection and the
resharding operation is complete.
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
5.0
</em>
.
</p>
</div>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.recipientState
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.recipientState" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.recipientState">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The current state of a recipient shard for a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/sharding-reshard-a-collection/#std-label-sharding-resharding">
resharding
operation
</a>
. The state is set to
<code class="leafygreen-ui-1l06pbn">
unused
</code>
when
a new resharding operation starts.
</p>
<p class="leafygreen-ui-1kp3ins">
Only present on a donor shard when a resharding operation is taking
place.
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:20%"/>
<col style="width:80%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
State
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
unused
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
The resharding operation is about to start or recovering from
a primary failover.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
awaiting-fetch-timestamp
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
The recipient shard is waiting for the donor shards to be
prepared to donate their data.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
creating-collection
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
The recipient shard is creating the new sharded collection.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
cloning
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
The recipient shard is receiving data from the donor shards.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
applying
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
The recipient shard is applying
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-oplog">
oplog
</a>
entries to
modify its copy of the data based on the new incoming writes
from donor shards.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
error
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
An error occurred during the resharding operation.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
strict-consistency
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
The recipient shard has all data changes stored in a temporary
collection.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
done
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
The resharding operation is complete.
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
5.0
</em>
.
</p>
</div>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.coordinatorState
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.coordinatorState" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.coordinatorState">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The state of the resharding coordinator for the current
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/sharding-reshard-a-collection/#std-label-sharding-resharding">
resharding operation
</a>
. The resharding
coordinator is an operation that runs on the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/sharded-cluster-config-servers/#std-label-sharding-config-server">
config server
</a>
primary. The state is set to
<code class="leafygreen-ui-1l06pbn">
unused
</code>
when a new resharding operation starts.
</p>
<p class="leafygreen-ui-1kp3ins">
Only present on the coordinating config server.
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:20%"/>
<col style="width:80%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
State
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
unused
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
The resharding operation is about to start or recovering from
a primary failover.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
initializing
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
The resharding coordinator has inserted the coordinator
document into
<code class="leafygreen-ui-1l06pbn">
config.reshardingOperations
</code>
and has added
the
<code class="leafygreen-ui-1l06pbn">
reshardingFields
</code>
to the
<code class="leafygreen-ui-1l06pbn">
config.collections
</code>
entry
for the original collection.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
preparing-to-donate
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
The resharding coordinator
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
has created a
<code class="leafygreen-ui-1l06pbn">
config.collections
</code>
entry for the temporary
resharding collection.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
has inserted entries into
<code class="leafygreen-ui-1l06pbn">
config.chunks
</code>
for ranges based
on the new shard key.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
has inserted entries into
<code class="leafygreen-ui-1l06pbn">
config.tags
</code>
for any zones
associated with the new shard key.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
The coordinator informs participant shards to begin the
resharding operation. The coordinator then waits until all
donor shards have picked a
<code class="leafygreen-ui-1l06pbn">
minFetchTimestamp
</code>
and are ready
to donate.
</p>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
cloning
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
The resharding coordinator informs donor shards to donate data
to recipient shards. The coordinator waits for all recipients
to finish cloning the data from the donor.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
applying
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
The resharding coordinator informs recipient shards to modify
their copies of data based on new incoming writes from donor
shards. The coordinator waits for all recipients to finish
applying
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/glossary/#std-term-oplog">
oplog
</a>
entries.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
blocking-writes
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
The resharding coordinator informs donor shards to prevent new
incoming write operations to the collection being resharded.
The coordinator then waits for all recipients to have all data
changes.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
aborting
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
An unrecoverable error occurred during the resharding
operation or the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/abortReshardCollection/#mongodb-dbcommand-dbcmd.abortReshardCollection">
<code class="leafygreen-ui-1l06pbn">
abortReshardCollection
</code>
</a>
command
(or the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/sh.abortReshardCollection/#mongodb-method-sh.abortReshardCollection">
<code class="leafygreen-ui-1l06pbn">
sh.abortReshardCollection()
</code>
</a>
method) was run.
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
committing
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
The resharding coordinator removes the
<code class="leafygreen-ui-1l06pbn">
config.collections
</code>
entry for the temporary resharding collection. The coordinator
then adds the
<code class="leafygreen-ui-1l06pbn">
recipientFields
</code>
to the source collection's
entry.
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
5.0
</em>
.
</p>
</div>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.opStatus
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.opStatus" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.opStatus">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
This metric is removed in version 6.1.
</p>
<div>
<p>
<em>
Changed
<!-- -->
in version
<!-- -->
6.1
</em>
.
</p>
</div>
</dd>
</dl>
<span class="leafygreen-ui-1qnjd6d" id="std-label-currentOp-query-sampling-metrics">
</span>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.collUuid
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.collUuid" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.collUuid">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The UUID of the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/configureQueryAnalyzer/#std-label-configureQueryAnalyzer">
sampled collection
<!-- -->
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
This field only appears on documents related to query sampling.
For details, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/currentOp/#std-label-sampled-queries-currentOp-stage">
Sampled Queries
<!-- -->
.
</a>
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
7.0
</em>
.
</p>
</div>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.startTime
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.startTime" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.startTime">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The time at which query sampling began.
</p>
<p class="leafygreen-ui-1kp3ins">
This field only appears on documents related to query sampling.
For details, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/currentOp/#std-label-sampled-queries-currentOp-stage">
Sampled Queries
<!-- -->
.
</a>
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
7.0
</em>
.
</p>
</div>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.samplesPerSecond
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.samplesPerSecond" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.samplesPerSecond">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The maximum number of queries to sample per second.
</p>
<p class="leafygreen-ui-1kp3ins">
On a sharded cluster, this is reported on
<code class="leafygreen-ui-1l06pbn">
mongos
</code>
instead of
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
. On a replica set, this is reported on
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
This field only appears on documents related to query sampling.
For details, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/currentOp/#std-label-sampled-queries-currentOp-stage">
Sampled Queries
<!-- -->
.
</a>
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
7.0
</em>
.
</p>
</div>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.sampledReadsCount
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.sampledReadsCount" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.sampledReadsCount">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The number of sampled read queries.
</p>
<p class="leafygreen-ui-1kp3ins">
This field only appears on documents related to query sampling.
For details, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/currentOp/#std-label-sampled-queries-currentOp-stage">
Sampled Queries
<!-- -->
.
</a>
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
7.0
</em>
.
</p>
</div>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.sampledWritesCount
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.sampledWritesCount" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.sampledWritesCount">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The number of sampled write queries.
</p>
<p class="leafygreen-ui-1kp3ins">
This field only appears on documents related to query sampling.
For details, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/currentOp/#std-label-sampled-queries-currentOp-stage">
Sampled Queries
<!-- -->
.
</a>
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
7.0
</em>
.
</p>
</div>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.sampledReadsBytes
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.sampledReadsBytes" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.sampledReadsBytes">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The size of the sampled read queries, in bytes.
</p>
<p class="leafygreen-ui-1kp3ins">
On a replica set, this is reported on every
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
On a sharded cluster, this only reported on
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
with
<code class="leafygreen-ui-1l06pbn">
--shardsvr
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
This field only appears on documents related to query sampling.
For details, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/currentOp/#std-label-sampled-queries-currentOp-stage">
Sampled Queries
<!-- -->
.
</a>
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
7.0
</em>
.
</p>
</div>
</dd>
</dl>
<dl class="data">
<dt>
<code class="leafygreen-ui-1l06pbn">
currentOp.sampledWritesBytes
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-data-currentOp.sampledWritesBytes" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-data-currentOp.sampledWritesBytes">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
The size of the sampled write queries, in bytes.
</p>
<p class="leafygreen-ui-1kp3ins">
On a replica set, this is reported on every
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
On a sharded cluster, this only reported on
<code class="leafygreen-ui-1l06pbn">
mongod
</code>
with
<code class="leafygreen-ui-1l06pbn">
--shardsvr
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
This field only appears on documents related to query sampling.
For details, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/currentOp/#std-label-sampled-queries-currentOp-stage">
Sampled Queries
<!-- -->
.
</a>
</p>
<div>
<p>
<em>
New
<!-- -->
in version
<!-- -->
7.0
</em>
.
</p>
</div>
</dd>
</dl>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/operator/aggregation/isoDayOfWeek/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
$isoDayOfWeek (aggregation)
<a class="headerlink leafygreen-ui-1kepx47" href="#-isodayofweek--aggregation-" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="-isodayofweek--aggregation-">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#definition" target="_self">
<span>
Definition
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#behavior" target="_self">
<span>
Behavior
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#example" target="_self">
<span>
Example
</span>
</a>
</li>
</ul>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Definition
<a class="headerlink leafygreen-ui-1kepx47" href="#definition" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="definition">
</div>
</a>
</h2>
<dl class="expression">
<dt>
<code class="leafygreen-ui-1l06pbn">
$isoDayOfWeek
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-expression-exp.-isoDayOfWeek" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-expression-exp.-isoDayOfWeek">
</div>
</a>
</dt>
<dd>
<p class="leafygreen-ui-1kp3ins">
Returns the weekday number in ISO 8601 format, ranging from
<code class="leafygreen-ui-1l06pbn">
1
</code>
(for Monday) to
<code class="leafygreen-ui-1l06pbn">
7
</code>
(for Sunday).
</p>
<p class="leafygreen-ui-1kp3ins">
The
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#mongodb-expression-exp.-isoDayOfWeek" target="_self">
<span>
<code class="leafygreen-ui-1l06pbn">
$isoDayOfWeek
</code>
</span>
</a>
expression has the following
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/#std-label-aggregation-expressions">
operator expression syntax
<!-- -->
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ $isoDayOfWeek: <dateexpression> }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-attr">$isoDayOfWeek</span>: <<!-- -->dateExpression<!-- -->> <!-- -->}</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The argument can be:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
An
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/#std-label-aggregation-expressions">
expression
</a>
that resolves to a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/bson-types/#std-label-document-bson-type-date">
Date
</a>
, a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/bson-types/#std-label-document-bson-type-timestamp">
Timestamp
</a>
, or an
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/bson-types/#std-label-document-bson-type-object-id">
ObjectID
<!-- -->
.
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
A document with this format:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ date: <dateexpression>, timezone: <tzexpression> }","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-1q4bxgx" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-attr">date</span>: <<!-- -->dateExpression<!-- -->><!-- -->,<!-- --> <span class="lg-highlight-attr">timezone</span>: <<!-- -->tzExpression<!-- -->> <!-- -->}</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:25%"/>
<col style="width:75%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Field
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
date
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
The date to which the operator is applied.
<code class="leafygreen-ui-1l06pbn">
<dateExpression>
</code>
must be a valid
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/#std-label-aggregation-expressions">
expression
</a>
that resolves to a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/bson-types/#std-label-document-bson-type-date">
Date
</a>
, a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/bson-types/#std-label-document-bson-type-timestamp">
Timestamp
</a>
,
or an
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/bson-types/#std-label-document-bson-type-object-id">
ObjectID
<!-- -->
.
</a>
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
timezone
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<p class="leafygreen-ui-1kp3ins">
Optional. The timezone of the operation result.
<code class="leafygreen-ui-1l06pbn">
<tzExpression>
</code>
must be a valid
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/#std-label-aggregation-expressions">
expression
</a>
that resolves to a string formatted as either
an
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://en.wikipedia.org/wiki/List_of_tz_database_time_zones" rel="noopener noreferrer">
<span>
Olson Timezone Identifier
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
or a
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://en.wikipedia.org/wiki/List_of_UTC_time_offsets" rel="noopener noreferrer">
<span>
UTC Offset
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
.
If no
<code class="leafygreen-ui-1l06pbn">
timezone
</code>
is provided, the result is in UTC.
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:30%"/>
<col style="width:70%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Format
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Examples
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
Olson Timezone Identifier
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"\"America/New_York\"\n\"Europe/London\"\n\"GMT\""}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light none leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">"America/New_York"</td></tr><tr class=""><td class="leafygreen-ui-7razhx">"Europe/London"</td></tr><tr class=""><td class="leafygreen-ui-7razhx">"GMT"</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
UTC Offset
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"+/-[hh]:[mm], e.g. \"+04:45\"\n+/-[hh][mm], e.g. \"-0530\"\n+/-[hh], e.g. \"+03\""}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light none leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">+/-[hh]:[mm], e.g. "+04:45"</td></tr><tr class=""><td class="leafygreen-ui-7razhx">+/-[hh][mm], e.g. "-0530"</td></tr><tr class=""><td class="leafygreen-ui-7razhx">+/-[hh], e.g. "+03"</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</li>
</ul>
</dd>
</dl>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Behavior
<a class="headerlink leafygreen-ui-1kepx47" href="#behavior" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="behavior">
</div>
</a>
</h2>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:90%"/>
<col style="width:10%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Example
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Result
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ $isoDayOfWeek: new Date(\"2016-01-01\") }","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1agdxuk" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-attr">$isoDayOfWeek</span>: <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Date</span>(<span class="lg-highlight-string">"2016-01-01"</span>) }</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
5
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ $isoDayOfWeek: { date: new Date(\"Jan 7, 2003\") } }","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1agdxuk" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-attr">$isoDayOfWeek</span>: <!-- -->{ <span class="lg-highlight-attr">date</span>: <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Date</span>(<span class="lg-highlight-string">"Jan 7, 2003"</span>) } }</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
2
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ $isoDayOfWeek: {\n date: new Date(\"August 14, 2011\"),\n timezone: \"America/Chicago\"\n} }","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-attr">$isoDayOfWeek</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">date</span>: <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Date</span>(<span class="lg-highlight-string">"August 14, 2011"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">timezone</span>: <span class="lg-highlight-string">"America/Chicago"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">} }</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
7
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ $isoDayOfWeek: ISODate(\"1998-11-07T00:00:00Z\") }","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1agdxuk" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-attr">$isoDayOfWeek</span>: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"1998-11-07T00:00:00Z"</span>) }</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
6
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ $isoDayOfWeek: {\n date: ISODate(\"1998-11-07T00:00:00Z\"),\n timezone: \"-0400\"\n} }","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-attr">$isoDayOfWeek</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">date</span>: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"1998-11-07T00:00:00Z"</span>)<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">timezone</span>: <span class="lg-highlight-string">"-0400"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">} }</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
5
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ $isoDayOfWeek: \"March 28, 1976\" }","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1agdxuk" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-attr">$isoDayOfWeek</span>: <span class="lg-highlight-string">"March 28, 1976"</span> }</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
error
</code>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ $isoDayOfWeek: Date(\"2016-01-01\") }","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1agdxuk" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-attr">$isoDayOfWeek</span>: <span class="lg-highlight-title lg-highlight-class">Date</span>(<span class="lg-highlight-string">"2016-01-01"</span>) }</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
error
</code>
</div>
</div>
</td>
</tr>
<tr class="leafygreen-ui-15dvrnp">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{ $isoDayOfWeek: \"2009-04-09\" }","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1agdxuk" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{ <span class="lg-highlight-attr">$isoDayOfWeek</span>: <span class="lg-highlight-string">"2009-04-09"</span> }</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
error
</code>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
$isoDayOfWeek cannot take a string as an argument.
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
</div>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Example
<a class="headerlink leafygreen-ui-1kepx47" href="#example" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="example">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
A collection called
<code class="leafygreen-ui-1l06pbn">
birthdays
</code>
contains the following documents:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.birthdays.insertMany( [\n { _id: 1, name: \"Betty\", birthday: ISODate(\"1993-09-21T00:00:00Z\") },\n { _id: 2, name: \"Veronica\", birthday: ISODate(\"1981-11-07T00:00:00Z\") }\n] )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">birthdays</span>.<span class="lg-highlight-title lg-highlight-function">insertMany</span>( <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">"Betty"</span>, <span class="lg-highlight-attr">birthday</span>: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"1993-09-21T00:00:00Z"</span>) }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">"Veronica"</span>, <span class="lg-highlight-attr">birthday</span>: <span class="lg-highlight-title lg-highlight-class">ISODate</span>(<span class="lg-highlight-string">"1981-11-07T00:00:00Z"</span>) }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">] )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The following operation returns the weekday number for each
<code class="leafygreen-ui-1l06pbn">
birthday
</code>
field.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.birthdays.aggregate( [\n {\n $project: {\n _id: 0,\n name: \"$name\",\n dayOfWeek: { $isoDayOfWeek: \"$birthday\" }\n }\n }\n] )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">birthdays</span>.<span class="lg-highlight-title lg-highlight-function">aggregate</span>( <!-- -->[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">$project</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">0</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">"$name"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">dayOfWeek</span>: <!-- -->{ <span class="lg-highlight-attr">$isoDayOfWeek</span>: <span class="lg-highlight-string">"$birthday"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">] )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The operation returns the following results:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"[\n { name: \"Betty\", dayOfWeek: 2 },\n { name: \"Veronica\", dayOfWeek: 6 }\n]","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">"Betty"</span>, <span class="lg-highlight-attr">dayOfWeek</span>: <span class="lg-highlight-number">2</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">"Veronica"</span>, <span class="lg-highlight-attr">dayOfWeek</span>: <span class="lg-highlight-number">6</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">]</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See also:
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/isoWeekYear/">
$isoWeekYear (aggregation)
</a>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/isoWeek/">
$isoWeek (aggregation)
</a>
</p>
</li>
</ul>
</div>
</div>
</section>
</section>
|
https://www.mongodb.com/docs/manual/reference/operator/aggregation/changeStreamSplitLargeEvent/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
$changeStreamSplitLargeEvent (aggregation)
<a class="headerlink leafygreen-ui-1kepx47" href="#-changestreamsplitlargeevent--aggregation-" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="-changestreamsplitlargeevent--aggregation-">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#definition" target="_self">
<span>
Definition
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#behavior" target="_self">
<span>
Behavior
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#example" target="_self">
<span>
Example
</span>
</a>
</li>
</ul>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Definition
<a class="headerlink leafygreen-ui-1kepx47" href="#definition" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="definition">
</div>
</a>
</h2>
<dl class="pipeline">
<dt>
<code class="leafygreen-ui-1l06pbn">
$changeStreamSplitLargeEvent
</code>
<a class="headerlink leafygreen-ui-1kepx47" href="#mongodb-pipeline-pipe.-changeStreamSplitLargeEvent" title="Permalink to this definition">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="mongodb-pipeline-pipe.-changeStreamSplitLargeEvent">
</div>
</a>
</dt>
<dd>
</dd>
</dl>
<p class="leafygreen-ui-1kp3ins">
<em>
New in MongoDB 7.0 (and 6.0.9).
</em>
</p>
<p class="leafygreen-ui-1kp3ins">
If a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/changeStreams/#std-label-changeStreams">
change stream
</a>
has large events that exceed
16 MB, a
<code class="leafygreen-ui-1l06pbn">
BSONObjectTooLarge
</code>
exception is returned. Starting in
MongoDB 7.0 (and 6.0.9), you can use a
<code class="leafygreen-ui-1l06pbn">
$changeStreamSplitLargeEvent
</code>
stage to split the events into smaller fragments.
</p>
<p class="leafygreen-ui-1kp3ins">
You should only use
<code class="leafygreen-ui-1l06pbn">
$changeStreamSplitLargeEvent
</code>
when strictly
necessary. For example, if your application requires full document pre-
or post-images, and generates large events that exceed 16 MB, use
<code class="leafygreen-ui-1l06pbn">
$changeStreamSplitLargeEvent
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
Before you decide to use
<code class="leafygreen-ui-1l06pbn">
$changeStreamSplitLargeEvent
</code>
, you should
first try to reduce the change event size. For example:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Don't request document pre- or post-images unless your application
requires them. This generates
<code class="leafygreen-ui-1l06pbn">
fullDocument
</code>
and
<code class="leafygreen-ui-1l06pbn">
fullDocumentBeforeChange
</code>
fields in more cases, which are typically
the largest objects in a change event.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Use a
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/project/#mongodb-pipeline-pipe.-project">
<code class="leafygreen-ui-1l06pbn">
$project
</code>
</a>
stage to include only the fields necessary
for your application. This reduces the change event size and avoids
the additional time to split large events into fragments. This allows
more change events to be returned in each batch.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
You can only have one
<code class="leafygreen-ui-1l06pbn">
$changeStreamSplitLargeEvent
</code>
stage in
your pipeline, and it must be the last stage. You can only use
<code class="leafygreen-ui-1l06pbn">
$changeStreamSplitLargeEvent
</code>
in a
<code class="leafygreen-ui-1l06pbn">
$changeStream
</code>
pipeline.
</p>
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
$changeStreamSplitLargeEvent
</code>
syntax:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"{\n $changeStreamSplitLargeEvent: {}\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">$changeStreamSplitLargeEvent</span>: <!-- -->{<!-- -->}</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Behavior
<a class="headerlink leafygreen-ui-1kepx47" href="#behavior" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="behavior">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
$changeStreamSplitLargeEvent
</code>
splits events that exceed 16 MB
into fragments and returns the fragments sequentially using the change
stream cursor.
</p>
<p class="leafygreen-ui-1kp3ins">
The fragments are split so that the maximum number of fields are
returned in the first fragment. This ensures the event context is
returned as quickly as possible.
</p>
<p class="leafygreen-ui-1kp3ins">
When the change event is split, only the size of top-level fields are
used.
<code class="leafygreen-ui-1l06pbn">
$changeStreamSplitLargeEvent
</code>
does not recursively process or
split subdocuments. For example, if you use a
<code class="leafygreen-ui-1l06pbn">
$project
</code>
stage to
create a change event with a single field that is 20 MB in size, the
event is not split and the stage returns an error.
</p>
<p class="leafygreen-ui-1kp3ins">
Each fragment has a resume token. A stream that is resumed using a
fragment's token will either:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Begin a new stream from the subsequent fragment.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Start at the next event if resuming from the final fragment in the
sequence.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
Each fragment for an event includes a
<code class="leafygreen-ui-1l06pbn">
splitEvent
</code>
document:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"splitEvent: {\n fragment: <int>,\n of: <int>\n}","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">splitEvent</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">fragment</span>: <<!-- -->int<!-- -->><!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">of</span>: <<!-- -->int<!-- -->></td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
The following table describes the fields.
</p>
<div class="leafygreen-ui-skkc39" tabindex="0">
<table class="leafygreen-ui-hr8lsv">
<colgroup>
<col style="width:20%"/>
<col style="width:80%"/>
</colgroup>
<thead class="leafygreen-ui-a9ho40">
<tr data-testid="leafygreen-ui-header-row">
<th class="leafygreen-ui-1trtg6r" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Field
</div>
</div>
</th>
<th class="leafygreen-ui-13uteka" role="columnheader" scope="col">
<div class="leafygreen-ui-ui0te9">
<div>
Description
</div>
</div>
</th>
</tr>
</thead>
<tbody>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
fragment
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Fragment index, starting at 1.
</div>
</div>
</td>
</tr>
<tr class="">
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
<code class="leafygreen-ui-1l06pbn">
of
</code>
</div>
</div>
</td>
<td class="leafygreen-ui-1drjk7h">
<div class="leafygreen-ui-1n4j8xf">
<div>
Total number of fragments for the event.
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Example
<a class="headerlink leafygreen-ui-1kepx47" href="#example" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="example">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
The example scenario in this section shows the use of
<code class="leafygreen-ui-1l06pbn">
$changeStreamSplitLargeEvent
</code>
with a new collection named
<code class="leafygreen-ui-1l06pbn">
myCollection
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
Create
<code class="leafygreen-ui-1l06pbn">
myCollection
</code>
and insert one document with just under 16 MB of
data:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.myCollection.insertOne(\n { _id: 0, largeField: \"a\".repeat( 16 * 1024 * 1024 - 1024 ) }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">myCollection</span>.<span class="lg-highlight-title lg-highlight-function">insertOne</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">0</span>, <span class="lg-highlight-attr">largeField</span>: <span class="lg-highlight-string">"a"</span>.<span class="lg-highlight-title lg-highlight-function">repeat</span>( <span class="lg-highlight-number">16</span> <!-- -->* <span class="lg-highlight-number">1024</span> <!-- -->* <span class="lg-highlight-number">1024</span> <!-- -->- <span class="lg-highlight-number">1024</span> ) }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
largeField
</code>
contains the repeated letter
<code class="leafygreen-ui-1l06pbn">
a
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
Enable
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/command/collMod/#std-label-collMod-change-stream-pre-and-post-images">
changeStreamPreAndPostImages
</a>
for
<code class="leafygreen-ui-1l06pbn">
myCollection
</code>
, which
allows a change stream to retrieve a document as it was before an update
(pre-image) and after an update (post-image):
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.runCommand( {\n collMod: \"myCollection\",\n changeStreamPreAndPostImages: { enabled: true }\n} )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-title lg-highlight-function">runCommand</span>( <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">collMod</span>: <span class="lg-highlight-string">"myCollection"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">changeStreamPreAndPostImages</span>: <!-- -->{ <span class="lg-highlight-attr">enabled</span>: <span class="lg-highlight-literal">true</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">} )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Create a change stream cursor to monitor changes to
<code class="leafygreen-ui-1l06pbn">
myCollection
</code>
using
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/db.collection.watch/#mongodb-method-db.collection.watch">
<code class="leafygreen-ui-1l06pbn">
db.collection.watch()
</code>
:
</a>
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"myChangeStreamCursor = db.myCollection.watch(\n [ { $changeStreamSplitLargeEvent: {} } ],\n { fullDocument: \"required\", fullDocumentBeforeChange: \"required\" }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">myChangeStreamCursor <!-- -->= <!-- -->db.<span class="lg-highlight-property">myCollection</span>.<span class="lg-highlight-title lg-highlight-function">watch</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->[ <!-- -->{ <span class="lg-highlight-attr">$changeStreamSplitLargeEvent</span>: <!-- -->{<!-- -->} } ]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">fullDocument</span>: <span class="lg-highlight-string">"required"</span>, <span class="lg-highlight-attr">fullDocumentBeforeChange</span>: <span class="lg-highlight-string">"required"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
For the change stream event:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
fullDocument: "required"
</code>
includes the document post-image.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
fullDocumentBeforeChange: "required"
</code>
includes the document
pre-image.
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
For details, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/operator/aggregation/changeStream/#mongodb-pipeline-pipe.-changeStream">
<code class="leafygreen-ui-1l06pbn">
$changeStream
</code>
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
Update the document in
<code class="leafygreen-ui-1l06pbn">
myCollection
</code>
, which also produces a change
stream event with the document pre- and post-images:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"db.myCollection.updateOne(\n { _id: 0 },\n { $set: { largeField: \"b\".repeat( 16 * 1024 * 1024 - 1024 ) } }\n)","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1b1bvay">
<pre class="leafygreen-ui-11itue3" tabindex="0"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">db.<span class="lg-highlight-property">myCollection</span>.<span class="lg-highlight-title lg-highlight-function">updateOne</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">_id</span>: <span class="lg-highlight-number">0</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">$set</span>: <!-- -->{ <span class="lg-highlight-attr">largeField</span>: <span class="lg-highlight-string">"b"</span>.<span class="lg-highlight-title lg-highlight-function">repeat</span>( <span class="lg-highlight-number">16</span> <!-- -->* <span class="lg-highlight-number">1024</span> <!-- -->* <span class="lg-highlight-number">1024</span> <!-- -->- <span class="lg-highlight-number">1024</span> ) } }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
largeField
</code>
now contains the repeated letter
<code class="leafygreen-ui-1l06pbn">
b
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
Retrieve the fragments from
<code class="leafygreen-ui-1l06pbn">
myChangeStreamCursor
</code>
using the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/method/cursor.next/#mongodb-method-cursor.next">
<code class="leafygreen-ui-1l06pbn">
next()
</code>
</a>
method and store the fragments in objects named
<code class="leafygreen-ui-1l06pbn">
firstFragment
</code>
,
<code class="leafygreen-ui-1l06pbn">
secondFragment
</code>
, and
<code class="leafygreen-ui-1l06pbn">
thirdFragment
</code>
:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"const firstFragment = myChangeStreamCursor.next()\nconst secondFragment = myChangeStreamCursor.next()\nconst thirdFragment = myChangeStreamCursor.next()","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">const</span> firstFragment <!-- -->= <!-- -->myChangeStreamCursor.<span class="lg-highlight-title lg-highlight-function">next</span>(<!-- -->)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">const</span> secondFragment <!-- -->= <!-- -->myChangeStreamCursor.<span class="lg-highlight-title lg-highlight-function">next</span>(<!-- -->)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">const</span> thirdFragment <!-- -->= <!-- -->myChangeStreamCursor.<span class="lg-highlight-title lg-highlight-function">next</span>(<!-- -->)</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Show
<code class="leafygreen-ui-1l06pbn">
firstFragment.splitEvent
</code>
:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"firstFragment.splitEvent","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">firstFragment.<span class="lg-highlight-property">splitEvent</span></td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Output with the fragment details:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"splitEvent: { fragment: 1, of: 3 }","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1agdxuk" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">splitEvent</span>: <!-- -->{ <span class="lg-highlight-attr">fragment</span>: <span class="lg-highlight-number">1</span>, <span class="lg-highlight-attr">of</span>: <span class="lg-highlight-number">3</span> }</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Similarly,
<code class="leafygreen-ui-1l06pbn">
secondFragment.splitEvent
</code>
and
<code class="leafygreen-ui-1l06pbn">
thirdFragment.splitEvent
</code>
return:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"splitEvent: { fragment: 2, of: 3 }\nsplitEvent: { fragment: 3, of: 3 }","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">splitEvent</span>: <!-- -->{ <span class="lg-highlight-attr">fragment</span>: <span class="lg-highlight-number">2</span>, <span class="lg-highlight-attr">of</span>: <span class="lg-highlight-number">3</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">splitEvent</span>: <!-- -->{ <span class="lg-highlight-attr">fragment</span>: <span class="lg-highlight-number">3</span>, <span class="lg-highlight-attr">of</span>: <span class="lg-highlight-number">3</span> }</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To examine the object keys for
<code class="leafygreen-ui-1l06pbn">
firstFragment
</code>
:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"Object.keys( firstFragment )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">Object</span>.<span class="lg-highlight-title lg-highlight-function">keys</span>( <!-- -->firstFragment )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Output:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"[\n '_id',\n 'splitEvent',\n 'wallTime',\n 'clusterTime',\n 'operationType',\n 'documentKey',\n 'ns',\n 'fullDocument'\n]","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">'_id'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">'splitEvent'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">'wallTime'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">'clusterTime'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">'operationType'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">'documentKey'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">'ns'</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">'fullDocument'</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">]</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
To examine the size in bytes for
<code class="leafygreen-ui-1l06pbn">
firstFragment.fullDocument
</code>
:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"bsonsize( firstFragment.fullDocument )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">bsonsize</span>( <!-- -->firstFragment.<span class="lg-highlight-property">fullDocument</span> )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Output:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"16776223","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1agdxuk" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-number">16776223</span></td></tr></tbody></table></code></pre>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
secondFragment
</code>
contains the
<code class="leafygreen-ui-1l06pbn">
fullDocumentBeforeChange
</code>
pre-image,
which is approximately 16 MB in size. The following example shows the
object keys for
<code class="leafygreen-ui-1l06pbn">
secondFragment
</code>
:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"Object.keys( secondFragment )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">Object</span>.<span class="lg-highlight-title lg-highlight-function">keys</span>( <!-- -->secondFragment )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Output:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"[ '_id', 'splitEvent', 'fullDocumentBeforeChange' ]","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1agdxuk" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[ <span class="lg-highlight-string">'_id'</span>, <span class="lg-highlight-string">'splitEvent'</span>, <span class="lg-highlight-string">'fullDocumentBeforeChange'</span> ]</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
<code class="leafygreen-ui-1l06pbn">
thirdFragment
</code>
contains the
<code class="leafygreen-ui-1l06pbn">
updateDescription
</code>
field, which is
approximately 16 MB in size. The following example shows the object keys
for
<code class="leafygreen-ui-1l06pbn">
thirdFragment
</code>
:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"Object.keys( thirdFragment )","programmingLanguage":"JavaScript"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-yzcs8i">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">Object</span>.<span class="lg-highlight-title lg-highlight-function">keys</span>( <!-- -->thirdFragment )</td></tr></tbody></table></code></pre>
<div class="leafygreen-ui-1bqcprk" data-testid="leafygreen-code-panel">
<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
<svg aria-label="Copy Icon" class="leafygreen-ui-1st74h4" height="16" role="img" viewbox="0 0 16 16" width="16">
<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
</path>
</svg>
</div>
</button>
</div>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Output:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"[ '_id', 'splitEvent', 'updateDescription' ]","programmingLanguage":"JavaScript"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1agdxuk" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">[ <span class="lg-highlight-string">'_id'</span>, <span class="lg-highlight-string">'splitEvent'</span>, <span class="lg-highlight-string">'updateDescription'</span> ]</td></tr></tbody></table></code></pre>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
For more information about change streams and events, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/reference/change-events/#std-label-change-events">
Change
Events
<!-- -->
.
</a>
</p>
</section>
</section>
|
https://www.mongodb.com/docs/manual/core/csfle/tutorials/azure/azure-automatic/ | <section>
<h1 class="contains-headerlink leafygreen-ui-41fr9s" weight="medium">
Use Automatic Client-Side Field Level Encryption with Azure
<a class="headerlink leafygreen-ui-1kepx47" href="#use-automatic-client-side-field-level-encryption-with-azure" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="use-automatic-client-side-field-level-encryption-with-azure">
</div>
</a>
</h1>
<div class="leafygreen-ui-a5yxub">
<p class="css-1cmx2d4 ef7gu8j0">
On this page
</p>
<ul class="css-1qb0mst ef7gu8j1">
<li class="leafygreen-ui-1e7a0ei">
<a class="lg-ui-0001 leafygreen-ui-e98ikf" href="#overview" target="_self">
<span>
Overview
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#before-you-get-started" target="_self">
<span>
Before You Get Started
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#full-application-code" target="_self">
<span>
Full Application Code
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#set-up-the-kms" target="_self">
<span>
Set Up the KMS
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#register-your-application-with-azure" target="_self">
<span>
Register your Application with Azure
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#create-the-customer-master-key" target="_self">
<span>
Create the Customer Master Key
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#create-the-application" target="_self">
<span>
Create the Application
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#create-a-unique-index-on-your-key-vault-collection" target="_self">
<span>
Create a Unique Index on your Key Vault collection
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#create-a-new-data-encryption-key" target="_self">
<span>
Create a New Data Encryption Key
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#configure-the-mongoclient" target="_self">
<span>
Configure the MongoClient
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#insert-a-document-with-encrypted-fields" target="_self">
<span>
Insert a Document with Encrypted Fields
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-x9koo9" href="#retrieve-your-document-with-encrypted-fields" target="_self">
<span>
Retrieve Your Document with Encrypted Fields
</span>
</a>
</li>
<li class="leafygreen-ui-1jqtqlb">
<a class="lg-ui-0001 leafygreen-ui-cpmeq5" href="#learn-more" target="_self">
<span>
Learn More
</span>
</a>
</li>
</ul>
</div>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Overview
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<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
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<div class="css-1btu0w3 evvkmar0" id="overview">
</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
This guide shows you how to build a Client-Side Field Level Encryption (CSFLE)-enabled
application using Azure Key Vault.
</p>
<p class="leafygreen-ui-1kp3ins">
After you complete the steps in this guide, you should have:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
A Customer Master Key hosted on an Azure Key Vault instance.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
A working client application that inserts documents with encrypted fields
using your Customer Master Key.
</p>
</li>
</ul>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Before You Get Started
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
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</div>
</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
To complete and run the code in this guide, you need to set up your
development environment as shown in the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/csfle/install/#std-label-csfle-install">
Installation Requirements
</a>
page.
</p>
<p class="leafygreen-ui-1kp3ins">
Throughout this guide, code examples use placeholder text.
Before you run the examples, substitute your own values for
these placeholders.
</p>
<p class="leafygreen-ui-1kp3ins">
For example:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"dek_id := \"<your>\"","programmingLanguage":"Golang"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1agdxuk" tabindex="-1"><code class="lg-highlight-hljs-light go leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">dek_id <!-- -->:=<!-- --> <span class="lg-highlight-string">"<Your Base64 DEK ID>"</span></td></tr></tbody></table></code></pre>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
You would replace everything between quotes with your
<span class="leafygreen-ui-vm4wms" tabindex="0">
DEK
</span>
ID.
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"dek_id := \"abc123\"","programmingLanguage":"Golang"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1agdxuk" tabindex="-1"><code class="lg-highlight-hljs-light go leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">dek_id <!-- -->:=<!-- --> <span class="lg-highlight-string">"abc123"</span></td></tr></tbody></table></code></pre>
</div>
</div>
</div>
<p class="leafygreen-ui-1kp3ins">
Select the programming language for which you want to see code examples for
from the
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Select your language
</span>
dropdown menu on the right side of
the page.
</p>
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Full Application Code
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</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
</path>
</svg>
<div class="css-1btu0w3 evvkmar0" id="full-application-code">
</div>
</a>
</h3>
<p class="leafygreen-ui-1kp3ins">
To see the complete code for the sample application, select your programming
language in the language selector.
</p>
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<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://github.com/mongodb/docs/tree/master/source/includes/generated/in-use-encryption/csfle/dotnet/azure/reader/CSFLE/" rel="noopener noreferrer">
<span>
Complete C# Application
</span>
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<span>
Complete Go Application
</span>
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</div>
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<span>
Complete Java Application
</span>
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<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
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<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
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<span>
Complete Node.js Application
</span>
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<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
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<span>
Complete Python Application
</span>
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<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
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<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
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</div>
</section>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Set Up the KMS
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-comment">//</span><span class="lg-highlight-comment"> You are viewing </span><span class="lg-highlight-comment">the C# driver code examples.</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-comment">//</span><span class="lg-highlight-comment"> Use the dropdown </span><span class="lg-highlight-comment">menu</span><span class="lg-highlight-comment"> to select a </span><span class="lg-highlight-comment">different driver.</span></td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-comment">//</span><span class="lg-highlight-comment"> You are viewing </span><span class="lg-highlight-comment">the</span><span class="lg-highlight-comment"> Golang driver code </span><span class="lg-highlight-comment">examples.</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-comment">//</span><span class="lg-highlight-comment"> Use the dropdown </span><span class="lg-highlight-comment">menu</span><span class="lg-highlight-comment"> to select a </span><span class="lg-highlight-comment">different driver.</span></td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-obh8q1">
<div class="lg-ui-select-menu-0000 leafygreen-ui-17aj16e" data-lgid="lg-select-button_text">
Node.js
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<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
When building or running the Golang code in this guide using
<code class="leafygreen-ui-1l06pbn">
go build
</code>
or
<code class="leafygreen-ui-1l06pbn">
go run
</code>
, always include the
<code class="leafygreen-ui-1l06pbn">
cse
</code>
build
constraint to enable CSFLE. See the following shell
command for an example of including the build constraint:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"go run -tags cse insert-encrypted-document.go","programmingLanguage":"Bash"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">go run -tags cse insert-encrypted-<span class="lg-highlight-variable lg-highlight-language">document</span>.<span class="lg-highlight-property">go</span></td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-comment">//</span><span class="lg-highlight-comment"> You are viewing </span><span class="lg-highlight-comment">the Node.js driver code examples.</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-comment">//</span><span class="lg-highlight-comment"> Use the dropdown </span><span class="lg-highlight-comment">menu</span><span class="lg-highlight-comment"> to select a </span><span class="lg-highlight-comment">different driver.</span></td></tr></tbody></table></code></pre>
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<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Register your Application with Azure
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<li class="leafygreen-ui-d7p7b6">
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Log in to
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://azure.microsoft.com/en-us/features/azure-portal/" rel="noopener noreferrer">
<span>
Azure
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.
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</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Register your Application with Azure Active Directory
</p>
<span class="leafygreen-ui-1qnjd6d" id="std-label-csfle-tutorial-automatic-azure-register">
</span>
<p class="leafygreen-ui-1kp3ins">
To register an application on Azure Active Directory,
follow Microsoft's official
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://docs.microsoft.com/en-us/azure/active-directory/develop/quickstart-register-app" rel="noopener noreferrer">
<span>
Register an application with the Microsoft identity platform
</span>
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Quick Start.
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<div class="leafygreen-ui-1kdmo88">
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
Record your Credentials
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Ensure you record the following credentials:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<strong>
Tenant ID
</strong>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<strong>
Client ID
</strong>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<strong>
Client secret
</strong>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
You will need them to construct your
<code class="leafygreen-ui-1l06pbn">
kmsProviders
</code>
object
later in this tutorial.
</p>
</div>
</div>
</div>
</div>
</div>
<div>
<div aria-labelledby="_260c7dhyx" class="leafygreen-ui-38lglc" id="_9vg0uiyur" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
Record your Credentials
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Ensure you record the following credentials:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<strong>
Tenant ID
</strong>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<strong>
Client ID
</strong>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<strong>
Client secret
</strong>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
You will need them to construct your
<code class="leafygreen-ui-1l06pbn">
kmsProviders
</code>
object
later in this tutorial.
</p>
</div>
</div>
</div>
</div>
</div>
<div>
<div aria-labelledby="_ah71h1ve3" class="leafygreen-ui-38lglc" id="_rzl8lay65" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
Record your Credentials
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Ensure you record the following credentials:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<strong>
tenant id
</strong>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<strong>
client id
</strong>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<strong>
client secret
</strong>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
Unless you are running your client within an Azure Virtual
Machine, you will need these credentials to construct your
<code class="leafygreen-ui-1l06pbn">
kmsProviders
</code>
object later in this tutorial.
</p>
</div>
</div>
</div>
</div>
</div>
<div>
<div aria-labelledby="_z6xv9twu6" class="" id="_haj2qmlgq" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
Record your Credentials
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Ensure you record the following credentials:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<strong>
Tenant ID
</strong>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<strong>
Client ID
</strong>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<strong>
Client secret
</strong>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
You will need them to construct your
<code class="leafygreen-ui-1l06pbn">
kmsProviders
</code>
object
later in this tutorial.
</p>
</div>
</div>
</div>
</div>
</div>
<div>
<div aria-labelledby="_6c86buug5" class="leafygreen-ui-38lglc" id="_d31awhxcv" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
Record your Credentials
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Ensure you record the following credentials:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<strong>
Tenant ID
</strong>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<strong>
Client ID
</strong>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<strong>
Client secret
</strong>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
You will need them to construct your
<code class="leafygreen-ui-1l06pbn">
kmsProviders
</code>
object
later in this tutorial.
</p>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</li>
</ol>
</section>
</div>
</div>
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<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
2
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Create the Customer Master Key
<a class="headerlink leafygreen-ui-1kepx47" href="#create-the-customer-master-key" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
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</svg>
<div class="css-1btu0w3 evvkmar0" id="create-the-customer-master-key">
</div>
</a>
</h3>
<span class="leafygreen-ui-1qnjd6d" id="std-label-aws-create-master-key">
</span>
<ol class="leafygreen-ui-rioki0" type="a">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Create your Azure Key Vault and Customer Master Key
</p>
<p class="leafygreen-ui-1kp3ins">
To create a new Azure Key Vault instance and Customer Master Key,
follow Microsoft's official
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://docs.microsoft.com/en-us/azure/key-vault/keys/quick-create-portal" rel="noopener noreferrer">
<span>
Set and retrieve a key from Azure Key Vault using the Azure portal
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
Quick Start.
</p>
<div class="leafygreen-ui-15mdk4" role="note">
<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
The Customer Master Key should have an RSA key size of 2048 or 4096
bits.
</p>
</div>
</div>
<div class="leafygreen-ui-85da11" role="note">
<h2 class="leafygreen-ui-1ac4g5h">
Important
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
Record your Credentials
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Ensure you record the following credentials:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<strong>
Key Name
</strong>
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<strong>
Key Identifier
</strong>
(referred to as
<code class="leafygreen-ui-1l06pbn">
keyVaultEndpoint
</code>
later in this guide)
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
<strong>
Key Version
</strong>
</p>
</li>
</ul>
<p class="leafygreen-ui-1kp3ins">
You will need them to construct your
<code class="leafygreen-ui-1l06pbn">
dataKeyOpts
</code>
object
later in this tutorial.
</p>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Grant Permissions
</p>
</li>
</ol>
</section>
</div>
</div>
</div>
</section>
<section>
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Create the Application
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{"@context":"https://schema.org","@type":"HowTo","steps":[{"@type":"HowToStep","text":"Create a unique index on the keyAltNames field in your\nencryption.__keyVault namespace.Select the tab corresponding to your preferred MongoDB driver:","name":"Create a Unique Index on your Key Vault collection"},{"@type":"HowToStep","text":"Add your Azure Key Vault CredentialsAdd the service account credentials to your CSFLE-enabled client\ncode.If your client runs on an Azure Virtual Machine (VM), you can allow the\nVM to use its Managed Identity to authenticate to your key vault.To allow the Azure VM to automatically provide your credentials,\nassign an empty map instead of one that contains your Azure\ncredentials as shown in the following code:Add Your Key InformationUpdate the following code to specify your Customer Master Key:You recorded your Customer Master Key's ARN (Amazon Resource Name) and Region\nin the Create a Customer Master Key\nstep of this guide.Generate your Data Encryption KeyGenerate your Data Encryption Key using the variables declared in step one of this tutorial.When using the Node.js driver v6.0 and later, you must import\nClientEncryption from mongodb.For earlier driver versions, import ClientEncryption from\nmongodb-client-encryption.To view a diagram showing how your client application creates your\nData Encryption Key when using an Azure Key Vault, see\nArchitecture.To learn more about the options for creating a Data Encryption Key\nencrypted with a Customer Master Key hosted in Azure Key Vault, see\nkmsProviders Object and\ndataKeyOpts Object.To view the complete code for making a Data Encryption Key, see\nour Github repositoryTo view the complete code for making a Data Encryption Key, see\nour Github repository.To view the complete code for making a Data Encryption Key, see\nour Github repository.To view the complete code for making a Data Encryption Key, see\nour Github repository.To view the complete code for making a Data Encryption Key, see\nour Github repository.","name":"Create a New Data Encryption Key"},{"@type":"HowToStep","text":"Follow the remaining steps in this tutorial in a separate file from the\none created in the previous steps.To view the complete code for this file, see\nour Github repositoryTo view the complete code for this file, see\nour Github repository.To view the complete code for this file, see\nour Github repository.To view the complete code for this file, see\nour Github repository.To view the complete code for this file, see\nour Github repository.Specify the Key Vault Collection NamespaceSpecify encryption.__keyVault as the Key Vault collection\nnamespace.Specify your Azure CredentialsSpecify the azure KMS provider and your Azure\ncredentials:If your client runs on an Azure Virtual Machine (VM), you can allow the\nVM to use its Managed Identity to authenticate to your key vault.To allow the Azure VM to automatically provide your credentials,\nassign an empty map instead of one that contains your Azure\ncredentials as shown in the following code:Create an Encryption Schema For Your CollectionMake sure to update the following code to include your Base64\nDEK (Data Encryption Key) ID. You received this value in the\nGenerate your Data Encryption Key step of this\nguide.Specify the Location of the Automatic Encryption Shared LibraryThe automatic encryption options provide configuration\ninformation to the Automatic Encryption Shared Library,\nwhich modifies the application's behavior when accessing encrypted fields.To learn more about the Automatic Encryption Shared Library, see\nthe Install and Configure a CSFLE Library page.Create the MongoClientInstantiate a MongoDB client object with the following automatic\nencryption settings that use the variables declared in the previous steps:","name":"Configure the MongoClient"},{"@type":"HowToStep","text":"Use your CSFLE-enabled\nMongoClient instance to insert a document with encrypted fields into the\nmedicalRecords.patients namespace using the following code\nsnippet:Rather than creating a raw BSON document, you can pass a struct with bson tags directly\nto the driver for encoding.When you insert a document, your CSFLE-enabled client\nencrypts the fields of your document such that it resembles the following:To view the complete code for inserting a document with encrypted fields, see\nour Github repositoryTo view the complete code for inserting a document with encrypted fields, see\nour Github repository.To view the complete code for inserting a document with encrypted fields, see\nour Github repository.To view the complete code for inserting a document with encrypted fields, see\nour Github repository.To view the complete code for inserting a document with encrypted fields, see\nour Github repository.","name":"Insert a Document with Encrypted Fields"},{"@type":"HowToStep","text":"Retrieve the document with encrypted fields you inserted in the\nInsert a Document with Encrypted Fields\nstep of this guide.To show the functionality of CSFLE, the following code snippet queries for\nyour document with a client configured for automatic CSFLE as well as\na client that is not configured for automatic CSFLE.The output of the preceding code snippet should look like this:To view the complete code for finding a document with encrypted fields, see\nour Github repositoryTo view the complete code for finding a document with encrypted fields, see\nour Github repository.To view the complete code for finding a document with encrypted fields, see\nour Github repository.To view the complete code for finding a document with encrypted fields, see\nour Github repository.To view the complete code for finding a document with encrypted fields, see\nour Github repository.","name":"Retrieve Your Document with Encrypted Fields"}],"name":"Create the Application","image":"https://webimages.mongodb.com/_com_assets/cms/kuyj2focmkbxv7gh3-stacked_default_slate_blue.svg?auto=format%252Ccompress"}
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Create a Unique Index on your Key Vault collection
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Create a unique index on the
<code class="leafygreen-ui-1l06pbn">
keyAltNames
</code>
field in your
<code class="leafygreen-ui-1l06pbn">
encryption.__keyVault
</code>
namespace.
</p>
<p class="leafygreen-ui-1kp3ins">
Select the tab corresponding to your preferred MongoDB driver:
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{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"var connectionString = \"<your>\";\nvar keyVaultNamespace = CollectionNamespace.FromFullName(\"encryption.__keyVault\");\nvar keyVaultClient = new MongoClient(connectionString);\nvar indexOptions = new CreateIndexOptions<bsondocument>();\nindexOptions.Unique = true;\nindexOptions.PartialFilterExpression = new BsonDocument { { \"keyAltNames\", new BsonDocument { { \"$exists\", new BsonBoolean(true) } } } };\nvar builder = Builders<bsondocument>.IndexKeys;\nvar indexKeysDocument = builder.Ascending(\"keyAltNames\");\nvar indexModel = new CreateIndexModel<bsondocument>(indexKeysDocument, indexOptions);\nvar keyVaultDatabase = keyVaultClient.GetDatabase(keyVaultNamespace.DatabaseNamespace.ToString());\n// Drop the Key Vault Collection in case you created this collection\n// in a previous run of this application. \nkeyVaultDatabase.DropCollection(keyVaultNamespace.CollectionName);\n// Drop the database storing your encrypted fields as all\n// the DEKs encrypting those fields were deleted in the preceding line.\nkeyVaultClient.GetDatabase(\"medicalRecords\").DropCollection(\"patients\");\nvar keyVaultCollection = keyVaultDatabase.GetCollection<bsondocument>(keyVaultNamespace.CollectionName.ToString());\nkeyVaultCollection.Indexes.CreateOne(indexModel);","programmingLanguage":"C#"}
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> connectionString = <span class="lg-highlight-string">"<Your MongoDB URI>"</span>;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> keyVaultNamespace = <span class="lg-highlight-title lg-highlight-class">CollectionNamespace</span>.<span class="lg-highlight-title lg-highlight-class">FromFullName</span>(<span class="lg-highlight-string">"encryption.__keyVault"</span>);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> keyVaultClient = <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">MongoClient</span>(connectionString);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> indexOptions = <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">CreateIndexOptions</span><<span class="lg-highlight-title lg-highlight-class">BsonDocument</span>>();</td></tr><tr class=""><td class="leafygreen-ui-7razhx">indexOptions.<span class="lg-highlight-property">Unique</span> = <span class="lg-highlight-literal">true</span>;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">indexOptions.<span class="lg-highlight-property">PartialFilterExpression</span> = <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">BsonDocument</span> { { <span class="lg-highlight-string">"keyAltNames"</span>, <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">BsonDocument</span> { { <span class="lg-highlight-string">"$exists"</span>, <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">BsonBoolean</span>(<span class="lg-highlight-literal">true</span>) } } } };</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> builder = <span class="lg-highlight-title lg-highlight-class">Builders</span><<span class="lg-highlight-title lg-highlight-class">BsonDocument</span>>.<span class="lg-highlight-property">IndexKeys</span>;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> indexKeysDocument = builder.<span class="lg-highlight-title lg-highlight-class">Ascending</span>(<span class="lg-highlight-string">"keyAltNames"</span>);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> indexModel = <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">CreateIndexModel</span><<span class="lg-highlight-title lg-highlight-class">BsonDocument</span>>(indexKeysDocument, indexOptions);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> keyVaultDatabase = keyVaultClient.<span class="lg-highlight-title lg-highlight-class">GetDatabase</span>(keyVaultNamespace.<span class="lg-highlight-property">DatabaseNamespace</span>.<span class="lg-highlight-title lg-highlight-class">ToString</span>());</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-comment">//</span><span class="lg-highlight-comment"> Drop the Key </span><span class="lg-highlight-comment">Vault</span><span class="lg-highlight-comment"> Collection in case </span><span class="lg-highlight-comment">you created this collection</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-comment">//</span><span class="lg-highlight-comment"> in a previous </span><span class="lg-highlight-comment">run of this application. </span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">keyVaultDatabase.<span class="lg-highlight-title lg-highlight-class">DropCollection</span>(keyVaultNamespace.<span class="lg-highlight-property">CollectionName</span>);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-comment">//</span><span class="lg-highlight-comment"> Drop the database </span><span class="lg-highlight-comment">storing</span><span class="lg-highlight-comment"> your encrypted fields </span><span class="lg-highlight-comment">as all</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-comment">// the DEKs</span><span class="lg-highlight-comment"> encrypting those fields </span><span class="lg-highlight-comment">were</span><span class="lg-highlight-comment"> deleted in the </span><span class="lg-highlight-comment">preceding line.</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">keyVaultClient.<span class="lg-highlight-title lg-highlight-class">GetDatabase</span>(<span class="lg-highlight-string">"medicalRecords"</span>).<span class="lg-highlight-title lg-highlight-class">DropCollection</span>(<span class="lg-highlight-string">"patients"</span>);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> keyVaultCollection = keyVaultDatabase.<span class="lg-highlight-property">GetCollection</span><<span class="lg-highlight-title lg-highlight-class">BsonDocument</span>>(keyVaultNamespace.<span class="lg-highlight-property">CollectionName</span>.<span class="lg-highlight-title lg-highlight-class">ToString</span>());</td></tr><tr class=""><td class="leafygreen-ui-7razhx">keyVaultCollection.<span class="lg-highlight-property">Indexes</span>.<span class="lg-highlight-title lg-highlight-class">CreateOne</span>(indexModel);</td></tr></tbody></table></code></pre>
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{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"uri := \"<your>\"\nkeyVaultClient, err := mongo.Connect(context.TODO(), options.Client().ApplyURI(uri))\nif err != nil {\n\treturn fmt.Errorf(\"Connect error for regular client: %v\", err)\n}\ndefer func() {\n\t_ = keyVaultClient.Disconnect(context.TODO())\n}()\n\nkeyVaultColl := \"__keyVault\"\nkeyVaultDb := \"encryption\"\nkeyVaultNamespace := keyVaultDb + \".\" + keyVaultColl\nkeyVaultIndex := mongo.IndexModel{\n\tKeys: bson.D{{\"keyAltNames\", 1}},\n\tOptions: options.Index().\n\t\tSetUnique(true).\n\t\tSetPartialFilterExpression(bson.D{\n\t\t\t{\"keyAltNames\", bson.D{\n\t\t\t\t{\"$exists\", true},\n\t\t\t}},\n\t\t}),\n}\n// Drop the Key Vault Collection in case you created this collection\n// in a previous run of this application.\nif err = keyVaultClient.Database(keyVaultDb).Collection(keyVaultColl).Drop(context.TODO()); err != nil {\n\tlog.Fatalf(\"Collection.Drop error: %v\", err)\n}\n// Drop the database storing your encrypted fields as all\n// the DEKs encrypting those fields were deleted in the preceding line.\nif err = keyVaultClient.Database(\"medicalRecords\").Collection(\"patients\").Drop(context.TODO()); err != nil {\n\tlog.Fatalf(\"Collection.Drop error: %v\", err)\n}\n_, err = keyVaultClient.Database(keyVaultDb).Collection(keyVaultColl).Indexes().CreateOne(context.TODO(), keyVaultIndex)\nif err != nil {\n\tpanic(err)\n}","programmingLanguage":"Golang"}
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">uri <!-- -->:<!-- -->= <span class="lg-highlight-string">"<Your MongoDB URI>"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">keyVaultClient<!-- -->, <!-- -->err := mongo.<span class="lg-highlight-title lg-highlight-class">Connect</span>(context.<span class="lg-highlight-title lg-highlight-function">TODO</span>(), options.<span class="lg-highlight-title lg-highlight-class">Client</span>().<span class="lg-highlight-title lg-highlight-class">ApplyURI</span>(uri))</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">if</span> err != nil {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">return</span> fmt.<span class="lg-highlight-title lg-highlight-class">Errorf</span>(<span class="lg-highlight-string">"Connect error for regular client: %v"</span>, err)</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr><tr class=""><td class="leafygreen-ui-7razhx">defer <span class="lg-highlight-title lg-highlight-function">func</span>() {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> _ = keyVaultClient.<span class="lg-highlight-title lg-highlight-class">Disconnect</span>(context.<span class="lg-highlight-title lg-highlight-function">TODO</span>())</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}()</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">keyVaultColl <!-- -->:<!-- -->= <span class="lg-highlight-string">"__keyVault"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">keyVaultDb <!-- -->:<!-- -->= <span class="lg-highlight-string">"encryption"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">keyVaultNamespace <!-- -->:<!-- -->= keyVaultDb + <span class="lg-highlight-string">"."</span> + keyVaultColl</td></tr><tr class=""><td class="leafygreen-ui-7razhx">keyVaultIndex <!-- -->:<!-- -->= mongo.<span class="lg-highlight-property">IndexModel</span>{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-class">Keys</span>: bson.<span class="lg-highlight-property">D</span>{{<span class="lg-highlight-string">"keyAltNames"</span>, <span class="lg-highlight-number">1</span>}},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-class">Options</span>: options.<span class="lg-highlight-title lg-highlight-class">Index</span>().</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-class">SetUnique</span>(<span class="lg-highlight-literal">true</span>).</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-class">SetPartialFilterExpression</span>(bson.<span class="lg-highlight-property">D</span>{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {<span class="lg-highlight-string">"keyAltNames"</span>, bson.<span class="lg-highlight-property">D</span>{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {<span class="lg-highlight-string">"$exists"</span>, <span class="lg-highlight-literal">true</span>},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }),</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-comment">//</span><span class="lg-highlight-comment"> Drop the Key </span><span class="lg-highlight-comment">Vault</span><span class="lg-highlight-comment"> Collection in case </span><span class="lg-highlight-comment">you created this collection</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-comment">//</span><span class="lg-highlight-comment"> in a previous </span><span class="lg-highlight-comment">run of this application.</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">if</span> err = keyVaultClient.<span class="lg-highlight-title lg-highlight-class">Database</span>(keyVaultDb).<span class="lg-highlight-title lg-highlight-class">Collection</span>(keyVaultColl).<span class="lg-highlight-title lg-highlight-class">Drop</span>(context.<span class="lg-highlight-title lg-highlight-function">TODO</span>()); err != nil {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> log.<span class="lg-highlight-title lg-highlight-class">Fatalf</span>(<span class="lg-highlight-string">"Collection.Drop error: %v"</span>, err)</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-comment">//</span><span class="lg-highlight-comment"> Drop the database </span><span class="lg-highlight-comment">storing</span><span class="lg-highlight-comment"> your encrypted fields </span><span class="lg-highlight-comment">as all</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-comment">// the DEKs</span><span class="lg-highlight-comment"> encrypting those fields </span><span class="lg-highlight-comment">were</span><span class="lg-highlight-comment"> deleted in the </span><span class="lg-highlight-comment">preceding line.</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">if</span> err = keyVaultClient.<span class="lg-highlight-title lg-highlight-class">Database</span>(<span class="lg-highlight-string">"medicalRecords"</span>).<span class="lg-highlight-title lg-highlight-class">Collection</span>(<span class="lg-highlight-string">"patients"</span>).<span class="lg-highlight-title lg-highlight-class">Drop</span>(context.<span class="lg-highlight-title lg-highlight-function">TODO</span>()); err != nil {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> log.<span class="lg-highlight-title lg-highlight-class">Fatalf</span>(<span class="lg-highlight-string">"Collection.Drop error: %v"</span>, err)</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr><tr class=""><td class="leafygreen-ui-7razhx">_, err = keyVaultClient.<span class="lg-highlight-title lg-highlight-class">Database</span>(keyVaultDb).<span class="lg-highlight-title lg-highlight-class">Collection</span>(keyVaultColl).<span class="lg-highlight-title lg-highlight-class">Indexes</span>().<span class="lg-highlight-title lg-highlight-class">CreateOne</span>(context.<span class="lg-highlight-title lg-highlight-function">TODO</span>(), keyVaultIndex)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">if</span> err != nil {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-function">panic</span>(err)</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
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{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"String connectionString = \"<your>\";\nString keyVaultDb = \"encryption\";\nString keyVaultColl = \"__keyVault\";\nString keyVaultNamespace = keyVaultDb + \".\" + keyVaultColl;\nMongoClient keyVaultClient = MongoClients.create(connectionString);\n\n// Drop the Key Vault Collection in case you created this collection\n// in a previous run of this application.\nkeyVaultClient.getDatabase(keyVaultDb).getCollection(keyVaultColl).drop();\n// Drop the database storing your encrypted fields as all\n// the DEKs encrypting those fields were deleted in the preceding line.\nkeyVaultClient.getDatabase(\"medicalRecords\").getCollection(\"patients\").drop();\n\n\nMongoCollection keyVaultCollection = keyVaultClient.getDatabase(keyVaultDb).getCollection(keyVaultColl);\nIndexOptions indexOpts = new IndexOptions().partialFilterExpression(new BsonDocument(\"keyAltNames\", new BsonDocument(\"$exists\", new BsonBoolean(true) ))).unique(true);\nkeyVaultCollection.createIndex(new BsonDocument(\"keyAltNames\", new BsonInt32(1)), indexOpts);\nkeyVaultClient.close();","programmingLanguage":"Java"}
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">String</span> connectionString = <span class="lg-highlight-string">"<Your MongoDB URI>"</span>;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">String</span> keyVaultDb = <span class="lg-highlight-string">"encryption"</span>;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">String</span> keyVaultColl = <span class="lg-highlight-string">"__keyVault"</span>;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">String</span> keyVaultNamespace = keyVaultDb + <span class="lg-highlight-string">"."</span> + keyVaultColl;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">MongoClient</span> keyVaultClient = <span class="lg-highlight-title lg-highlight-class">MongoClients</span>.<span class="lg-highlight-title lg-highlight-function">create</span>(connectionString);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-comment">//</span><span class="lg-highlight-comment"> Drop the Key </span><span class="lg-highlight-comment">Vault</span><span class="lg-highlight-comment"> Collection in case </span><span class="lg-highlight-comment">you created this collection</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-comment">//</span><span class="lg-highlight-comment"> in a previous </span><span class="lg-highlight-comment">run of this application.</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">keyVaultClient.<span class="lg-highlight-title lg-highlight-function">getDatabase</span>(keyVaultDb).<span class="lg-highlight-title lg-highlight-function">getCollection</span>(keyVaultColl).<span class="lg-highlight-title lg-highlight-function">drop</span>();</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-comment">//</span><span class="lg-highlight-comment"> Drop the database </span><span class="lg-highlight-comment">storing</span><span class="lg-highlight-comment"> your encrypted fields </span><span class="lg-highlight-comment">as all</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-comment">// the DEKs</span><span class="lg-highlight-comment"> encrypting those fields </span><span class="lg-highlight-comment">were</span><span class="lg-highlight-comment"> deleted in the </span><span class="lg-highlight-comment">preceding line.</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">keyVaultClient.<span class="lg-highlight-title lg-highlight-function">getDatabase</span>(<span class="lg-highlight-string">"medicalRecords"</span>).<span class="lg-highlight-title lg-highlight-function">getCollection</span>(<span class="lg-highlight-string">"patients"</span>).<span class="lg-highlight-title lg-highlight-function">drop</span>();</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">MongoCollection</span> keyVaultCollection = keyVaultClient.<span class="lg-highlight-title lg-highlight-function">getDatabase</span>(keyVaultDb).<span class="lg-highlight-title lg-highlight-function">getCollection</span>(keyVaultColl);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">IndexOptions</span> indexOpts = <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">IndexOptions</span>().<span class="lg-highlight-title lg-highlight-function">partialFilterExpression</span>(<span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">BsonDocument</span>(<span class="lg-highlight-string">"keyAltNames"</span>, <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">BsonDocument</span>(<span class="lg-highlight-string">"$exists"</span>, <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">BsonBoolean</span>(<span class="lg-highlight-literal">true</span>) ))).<span class="lg-highlight-title lg-highlight-function">unique</span>(<span class="lg-highlight-literal">true</span>);</td></tr><tr class=""><td class="leafygreen-ui-7razhx">keyVaultCollection.<span class="lg-highlight-title lg-highlight-function">createIndex</span>(<span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">BsonDocument</span>(<span class="lg-highlight-string">"keyAltNames"</span>, <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">BsonInt32</span>(<span class="lg-highlight-number">1</span>)), indexOpts);</td></tr><tr class=""><td class="leafygreen-ui-7razhx">keyVaultClient.<span class="lg-highlight-title lg-highlight-function">close</span>();</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">const</span> uri <!-- -->= <span class="lg-highlight-string">"<Your Connection String>"</span>;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">const</span> keyVaultDatabase <!-- -->= <span class="lg-highlight-string">"encryption"</span>;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">const</span> keyVaultCollection <!-- -->= <span class="lg-highlight-string">"__keyVault"</span>;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">const</span> keyVaultNamespace <!-- -->= <span class="lg-highlight-string">`</span><span class="lg-highlight-subst lg-highlight-string">${keyVaultDatabase}</span><span class="lg-highlight-string">.</span><span class="lg-highlight-subst lg-highlight-string">${keyVaultCollection}</span><span class="lg-highlight-string">`</span>;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">const</span> keyVaultClient <!-- -->= <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">MongoClient</span>(<!-- -->uri)<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">await</span> keyVaultClient.<span class="lg-highlight-title lg-highlight-function">connect</span>(<!-- -->)<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">const</span> keyVaultDB <!-- -->= <!-- -->keyVaultClient.<span class="lg-highlight-title lg-highlight-function">db</span>(<!-- -->keyVaultDatabase)<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-comment">//</span><span class="lg-highlight-comment"> Drop the Key </span><span class="lg-highlight-comment">Vault</span><span class="lg-highlight-comment"> Collection in case </span><span class="lg-highlight-comment">you created this collection</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-comment">//</span><span class="lg-highlight-comment"> in a previous </span><span class="lg-highlight-comment">run of this application.</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">await</span> keyVaultDB.<span class="lg-highlight-title lg-highlight-function">dropDatabase</span>(<!-- -->)<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-comment">//</span><span class="lg-highlight-comment"> Drop the database </span><span class="lg-highlight-comment">storing</span><span class="lg-highlight-comment"> your encrypted fields </span><span class="lg-highlight-comment">as all</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-comment">// the DEKs</span><span class="lg-highlight-comment"> encrypting those fields </span><span class="lg-highlight-comment">were</span><span class="lg-highlight-comment"> deleted in the </span><span class="lg-highlight-comment">preceding line.</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">await</span> keyVaultClient.<span class="lg-highlight-title lg-highlight-function">db</span>(<span class="lg-highlight-string">"medicalRecords"</span>).<span class="lg-highlight-title lg-highlight-function">dropDatabase</span>(<!-- -->)<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">const</span> keyVaultColl <!-- -->= <!-- -->keyVaultDB.<span class="lg-highlight-title lg-highlight-function">collection</span>(<!-- -->keyVaultCollection)<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">await</span> keyVaultColl.<span class="lg-highlight-title lg-highlight-function">createIndex</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{ <span class="lg-highlight-attr">keyAltNames</span>: <span class="lg-highlight-number">1</span> }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">unique</span>: <span class="lg-highlight-literal">true</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">partialFilterExpression</span>: <!-- -->{ <span class="lg-highlight-attr">keyAltNames</span>: <!-- -->{ <span class="lg-highlight-attr">$exists</span>: <span class="lg-highlight-literal">true</span> } }<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->}</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)<!-- -->;</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">connection_string = <span class="lg-highlight-string">"<your connection string here>"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">key_vault_coll = <span class="lg-highlight-string">"__keyVault"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">key_vault_db = <span class="lg-highlight-string">"encryption"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">key_vault_namespace = f<span class="lg-highlight-string">"{key_vault_db}.{key_vault_coll}"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">key_vault_client = <span class="lg-highlight-title lg-highlight-class">MongoClient</span>(connection_string)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"># <span class="lg-highlight-title lg-highlight-class">Drop</span> the <span class="lg-highlight-title lg-highlight-class">Key</span> <span class="lg-highlight-title lg-highlight-class">Vault</span> <span class="lg-highlight-title lg-highlight-class">Collection</span> <span class="lg-highlight-keyword">in</span> <span class="lg-highlight-keyword">case</span> you created <span class="lg-highlight-variable lg-highlight-language">this</span> collection</td></tr><tr class=""><td class="leafygreen-ui-7razhx"># <span class="lg-highlight-keyword">in</span> a previous run <span class="lg-highlight-keyword">of</span> <span class="lg-highlight-variable lg-highlight-language">this</span> application.</td></tr><tr class=""><td class="leafygreen-ui-7razhx">key_vault_client.<span class="lg-highlight-title lg-highlight-function">drop_database</span>(key_vault_db)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"># <span class="lg-highlight-title lg-highlight-class">Drop</span> the database storing your encrypted fields <span class="lg-highlight-keyword">as</span> all</td></tr><tr class=""><td class="leafygreen-ui-7razhx"># the <span class="lg-highlight-title lg-highlight-class">DEKs</span> encrypting those fields were deleted <span class="lg-highlight-keyword">in</span> the preceding line.</td></tr><tr class=""><td class="leafygreen-ui-7razhx">key_vault_client[<span class="lg-highlight-string">"medicalRecords"</span>].<span class="lg-highlight-title lg-highlight-function">drop_collection</span>(<span class="lg-highlight-string">"patients"</span>)</td></tr><tr class=""><td class="leafygreen-ui-7razhx">key_vault_client[key_vault_db][key_vault_coll].<span class="lg-highlight-title lg-highlight-function">create_index</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> [(<span class="lg-highlight-string">"keyAltNames"</span>, <span class="lg-highlight-variable lg-highlight-constant">ASCENDING</span>)],</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> unique=<span class="lg-highlight-title lg-highlight-class">True</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> partialFilterExpression={<span class="lg-highlight-string">"keyAltNames"</span>: {<span class="lg-highlight-string">"$exists"</span>: <span class="lg-highlight-title lg-highlight-class">True</span>}},</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> kmsProviders = <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Dictionary</span><string, <span class="lg-highlight-title lg-highlight-class">IReadOnlyDictionary</span><string, object>>();</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> provider = <span class="lg-highlight-string">"azure"</span>;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> azureKmsOptions = <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Dictionary</span><string, object></td></tr><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { <span class="lg-highlight-string">"tenantId"</span>, <span class="lg-highlight-string">"<Your Azure Tenant ID>"</span> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { <span class="lg-highlight-string">"clientId"</span>, <span class="lg-highlight-string">"<Your Azure Client ID>"</span> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { <span class="lg-highlight-string">"clientSecret"</span>, <span class="lg-highlight-string">"<Your Azure Client Secret>"</span> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx">};</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">provider <!-- -->:<!-- -->= <span class="lg-highlight-string">"azure"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">kmsProviders <!-- -->:<!-- -->= map[string]map[string]interface{}{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">provider</span>: {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"tenantId"</span>: <span class="lg-highlight-string">"<Your Azure Tenant ID>"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"clientId"</span>: <span class="lg-highlight-string">"<Your Azure Client ID>"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"clientSecret"</span>: <span class="lg-highlight-string">"<Your Azure Client Secret>"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">String</span> kmsProvider = <span class="lg-highlight-string">"azure"</span>;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">Map</span><<span class="lg-highlight-title lg-highlight-class">String</span>, <span class="lg-highlight-title lg-highlight-class">Map</span><<span class="lg-highlight-title lg-highlight-class">String</span>, <span class="lg-highlight-title lg-highlight-class">Object</span>>> kmsProviders = <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">HashMap</span><<span class="lg-highlight-title lg-highlight-class">String</span>, <span class="lg-highlight-title lg-highlight-class">Map</span><<span class="lg-highlight-title lg-highlight-class">String</span>, <span class="lg-highlight-title lg-highlight-class">Object</span>>>();</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">Map</span><<span class="lg-highlight-title lg-highlight-class">String</span>, <span class="lg-highlight-title lg-highlight-class">Object</span>> providerDetails = <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">HashMap</span><>();</td></tr><tr class=""><td class="leafygreen-ui-7razhx">providerDetails.<span class="lg-highlight-title lg-highlight-function">put</span>(<span class="lg-highlight-string">"tenantId"</span>, <span class="lg-highlight-string">"<Azure account organization>"</span>);</td></tr><tr class=""><td class="leafygreen-ui-7razhx">providerDetails.<span class="lg-highlight-title lg-highlight-function">put</span>(<span class="lg-highlight-string">"clientId"</span>, <span class="lg-highlight-string">"<Azure client ID>"</span>);</td></tr><tr class=""><td class="leafygreen-ui-7razhx">providerDetails.<span class="lg-highlight-title lg-highlight-function">put</span>(<span class="lg-highlight-string">"clientSecret"</span>, <span class="lg-highlight-string">"<Azure client secret>"</span>);</td></tr><tr class=""><td class="leafygreen-ui-7razhx">kmsProviders.<span class="lg-highlight-title lg-highlight-function">put</span>(kmsProvider, providerDetails);</td></tr></tbody></table></code></pre>
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Node.js
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<svg alt="" aria-hidden="true" class="leafygreen-ui-fn50nl" height="16" role="presentation" viewbox="0 0 16 16" width="16">
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<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
Azure Virtual Machine Managed Identities
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
If your client runs on an Azure Virtual Machine (VM), you can allow the
VM to use its Managed Identity to authenticate to your key vault.
</p>
<p class="leafygreen-ui-1kp3ins">
To allow the Azure VM to automatically provide your credentials,
assign an empty map instead of one that contains your Azure
credentials as shown in the following code:
</p>
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{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"String kmsProvider = \"azure\";\nMap<string,>> kmsProviders = new HashMap<string,>>();\nMap<string,> providerDetails = new HashMap<>();\nkmsProviders.put(kmsProvider, providerDetails);","programmingLanguage":"Java"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">String</span> kmsProvider = <span class="lg-highlight-string">"azure"</span>;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">Map</span><<span class="lg-highlight-title lg-highlight-class">String</span>, <span class="lg-highlight-title lg-highlight-class">Map</span><<span class="lg-highlight-title lg-highlight-class">String</span>, <span class="lg-highlight-title lg-highlight-class">Object</span>>> kmsProviders = <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">HashMap</span><<span class="lg-highlight-title lg-highlight-class">String</span>, <span class="lg-highlight-title lg-highlight-class">Map</span><<span class="lg-highlight-title lg-highlight-class">String</span>, <span class="lg-highlight-title lg-highlight-class">Object</span>>>();</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">Map</span><<span class="lg-highlight-title lg-highlight-class">String</span>, <span class="lg-highlight-title lg-highlight-class">Object</span>> providerDetails = <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">HashMap</span><>();</td></tr><tr class=""><td class="leafygreen-ui-7razhx">kmsProviders.<span class="lg-highlight-title lg-highlight-function">put</span>(kmsProvider, providerDetails);</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-148abs6">
<div class="leafygreen-ui-omjz13" data-lgid="lg-select">
<button aria-controls="select-86-menu" aria-describedby="select-86-description" aria-disabled="false" aria-expanded="false" aria-invalid="false" aria-labelledby="Language Picker" class="lg-ui-button-0000 leafygreen-ui-dvfj9v" data-lgid="lg-button" data-testid="leafygreen-ui-select-menubutton" id="select-87" type="button" value="Node.js">
<div class="leafygreen-ui-v038xi">
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">const</span> provider <!-- -->= <span class="lg-highlight-string">"azure"</span>;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">const</span> kmsProviders <!-- -->= <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">azure</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">tenantId</span>: <span class="lg-highlight-string">"<Your Tenant ID>"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">clientId</span>: <span class="lg-highlight-string">"<Your Client ID>"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">clientSecret</span>: <span class="lg-highlight-string">"<Your Client Secret>"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}<!-- -->;</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">provider = <span class="lg-highlight-string">"azure"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">kms_providers = {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">provider</span>: {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"tenantId"</span>: <span class="lg-highlight-string">"<Azure account organization>"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"clientId"</span>: <span class="lg-highlight-string">"<Azure client ID>"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"clientSecret"</span>: <span class="lg-highlight-string">"<Azure client secret>"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
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</li>
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<p class="leafygreen-ui-1kp3ins">
Add Your Key Information
</p>
<p class="leafygreen-ui-1kp3ins">
Update the following code to specify your Customer Master Key:
</p>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
You recorded your Customer Master Key's
<span class="leafygreen-ui-vm4wms" tabindex="0">
ARN
</span>
and Region
in the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-aws-create-master-key" target="_self">
<span>
Create a Customer Master Key
</span>
</a>
step of this guide.
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<div class="leafygreen-ui-1kdmo88">
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"kmsProviders.Add(provider, azureKmsOptions);\nvar dataKeyOptions = new DataKeyOptions(\nmasterKey: new BsonDocument\n{\n { \"keyName\", \"<your>\" },\n { \"keyVaultEndpoint\", \"<your>\" },\n});","programmingLanguage":"C#"}
</script>
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<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">kmsProviders.<span class="lg-highlight-title lg-highlight-class">Add</span>(provider, azureKmsOptions);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> dataKeyOptions = <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">DataKeyOptions</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-attr">masterKey</span>: <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">BsonDocument</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { <span class="lg-highlight-string">"keyName"</span>, <span class="lg-highlight-string">"<Your Azure Key Name>"</span> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { <span class="lg-highlight-string">"keyVaultEndpoint"</span>, <span class="lg-highlight-string">"<Your Azure Key Vault Endpoint>"</span> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx">});</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">masterKey <!-- -->:<!-- -->= map[string]interface{}{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"keyVaultEndpoint"</span>: <span class="lg-highlight-string">"<Your Azure Key Vault Endpoint>"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"keyName"</span>: <span class="lg-highlight-string">"<Your Azure Key Name>"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
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{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"BsonDocument masterKeyProperties = new BsonDocument();\nmasterKeyProperties.put(\"provider\", new BsonString(kmsProvider));\nmasterKeyProperties.put(\"keyName\", new BsonString(\"<azure>\"));\nmasterKeyProperties.put(\"keyVaultEndpoint\", new BsonString(\"","programmingLanguage":"Java"}
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">BsonDocument</span> masterKeyProperties = <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">BsonDocument</span>();</td></tr><tr class=""><td class="leafygreen-ui-7razhx">masterKeyProperties.<span class="lg-highlight-title lg-highlight-function">put</span>(<span class="lg-highlight-string">"provider"</span>, <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">BsonString</span>(kmsProvider));</td></tr><tr class=""><td class="leafygreen-ui-7razhx">masterKeyProperties.<span class="lg-highlight-title lg-highlight-function">put</span>(<span class="lg-highlight-string">"keyName"</span>, <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">BsonString</span>(<span class="lg-highlight-string">"<Azure key name>"</span>));</td></tr><tr class=""><td class="leafygreen-ui-7razhx">masterKeyProperties.<span class="lg-highlight-title lg-highlight-function">put</span>(<span class="lg-highlight-string">"keyVaultEndpoint"</span>, <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">BsonString</span>(<span class="lg-highlight-string">"<Azure key vault endpoint"</span>));</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">const</span> masterKey <!-- -->= <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">keyVaultEndpoint</span>: <span class="lg-highlight-string">"<Your Key Vault Endpoint>"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">keyName</span>: <span class="lg-highlight-string">"<Your Key Name>"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}<!-- -->;</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">master_key = {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"keyName"</span>: <span class="lg-highlight-string">"<Azure key name>"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"keyVersion"</span>: <span class="lg-highlight-string">"<Azure key version>"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"keyVaultEndpoint"</span>: <span class="lg-highlight-string">"<Azure key vault endpoint/key identifier>"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
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Generate your Data Encryption Key
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Generate your Data Encryption Key using the variables declared in
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step one
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{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"var clientEncryptionOptions = new ClientEncryptionOptions(\n keyVaultClient: keyVaultClient,\n keyVaultNamespace: keyVaultNamespace,\n kmsProviders: kmsProviders\n );\n\nvar clientEncryption = new ClientEncryption(clientEncryptionOptions);\nvar dataKeyId = clientEncryption.CreateDataKey(provider, dataKeyOptions, CancellationToken.None);\nvar dataKeyIdBase64 = Convert.ToBase64String(GuidConverter.ToBytes(dataKeyId, GuidRepresentation.Standard));\nConsole.WriteLine($\"DataKeyId [base64]: {dataKeyIdBase64}\");","programmingLanguage":"C#"}
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> clientEncryptionOptions = <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">ClientEncryptionOptions</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">keyVaultClient</span>: keyVaultClient,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">keyVaultNamespace</span>: keyVaultNamespace,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">kmsProviders</span>: kmsProviders</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> );</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> clientEncryption = <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">ClientEncryption</span>(clientEncryptionOptions);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> dataKeyId = clientEncryption.<span class="lg-highlight-title lg-highlight-class">CreateDataKey</span>(provider, dataKeyOptions, <span class="lg-highlight-title lg-highlight-class">CancellationToken</span>.<span class="lg-highlight-property">None</span>);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> dataKeyIdBase64 = <span class="lg-highlight-title lg-highlight-class">Convert</span>.<span class="lg-highlight-title lg-highlight-class">ToBase64String</span>(<span class="lg-highlight-title lg-highlight-class">GuidConverter</span>.<span class="lg-highlight-title lg-highlight-class">ToBytes</span>(dataKeyId, <span class="lg-highlight-title lg-highlight-class">GuidRepresentation</span>.<span class="lg-highlight-property">Standard</span>));</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">Console</span>.<span class="lg-highlight-title lg-highlight-class">WriteLine</span>($<span class="lg-highlight-string">"DataKeyId [base64]: {dataKeyIdBase64}"</span>);</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">clientEncryptionOpts <!-- -->:<!-- -->= options.<span class="lg-highlight-title lg-highlight-class">ClientEncryption</span>().<span class="lg-highlight-title lg-highlight-class">SetKeyVaultNamespace</span>(keyVaultNamespace).</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-class">SetKmsProviders</span>(kmsProviders)</td></tr><tr class=""><td class="leafygreen-ui-7razhx">clientEnc<!-- -->, <!-- -->err := mongo.<span class="lg-highlight-title lg-highlight-class">NewClientEncryption</span>(keyVaultClient, clientEncryptionOpts)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">if</span> err != nil {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">return</span> fmt.<span class="lg-highlight-title lg-highlight-class">Errorf</span>(<span class="lg-highlight-string">"NewClientEncryption error %v"</span>, err)</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr><tr class=""><td class="leafygreen-ui-7razhx">defer <span class="lg-highlight-title lg-highlight-function">func</span>() {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> _ = clientEnc.<span class="lg-highlight-title lg-highlight-class">Close</span>(context.<span class="lg-highlight-title lg-highlight-function">TODO</span>())</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}()</td></tr><tr class=""><td class="leafygreen-ui-7razhx">dataKeyOpts <!-- -->:<!-- -->= options.<span class="lg-highlight-title lg-highlight-class">DataKey</span>().</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-class">SetMasterKey</span>(masterKey)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">dataKeyID<!-- -->, <!-- -->err := clientEnc.<span class="lg-highlight-title lg-highlight-class">CreateDataKey</span>(context.<span class="lg-highlight-title lg-highlight-function">TODO</span>(), provider, dataKeyOpts)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">if</span> err != nil {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">return</span> fmt.<span class="lg-highlight-title lg-highlight-class">Errorf</span>(<span class="lg-highlight-string">"create data key error %v"</span>, err)</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">fmt.<span class="lg-highlight-title lg-highlight-class">Printf</span>(<span class="lg-highlight-string">"DataKeyId [base64]: %s</span><span class="lg-highlight-string">\n</span><span class="lg-highlight-string">"</span>, base64.<span class="lg-highlight-property">StdEncoding</span>.<span class="lg-highlight-title lg-highlight-class">EncodeToString</span>(dataKeyID.<span class="lg-highlight-property">Data</span>))</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">ClientEncryptionSettings</span> clientEncryptionSettings = <span class="lg-highlight-title lg-highlight-class">ClientEncryptionSettings</span>.<span class="lg-highlight-title lg-highlight-function">builder</span>()</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">keyVaultMongoClientSettings</span>(<span class="lg-highlight-title lg-highlight-class">MongoClientSettings</span>.<span class="lg-highlight-title lg-highlight-function">builder</span>()</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">applyConnectionString</span>(<span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">ConnectionString</span>(connectionString))</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">build</span>())</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">keyVaultNamespace</span>(keyVaultNamespace)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">kmsProviders</span>(kmsProviders)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">build</span>();</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">MongoClient</span> regularClient = <span class="lg-highlight-title lg-highlight-class">MongoClients</span>.<span class="lg-highlight-title lg-highlight-function">create</span>(connectionString);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">ClientEncryption</span> clientEncryption = <span class="lg-highlight-title lg-highlight-class">ClientEncryptions</span>.<span class="lg-highlight-title lg-highlight-function">create</span>(clientEncryptionSettings);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">BsonBinary</span> dataKeyId = clientEncryption.<span class="lg-highlight-title lg-highlight-function">createDataKey</span>(kmsProvider, <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">DataKeyOptions</span>().<span class="lg-highlight-title lg-highlight-function">masterKey</span>(masterKeyProperties));</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">String</span> base64DataKeyId = <span class="lg-highlight-title lg-highlight-class">Base64</span>.<span class="lg-highlight-title lg-highlight-function">getEncoder</span>().<span class="lg-highlight-title lg-highlight-function">encodeToString</span>(dataKeyId.<span class="lg-highlight-title lg-highlight-function">getData</span>());</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">System</span>.<span class="lg-highlight-property">out</span>.<span class="lg-highlight-title lg-highlight-function">println</span>(<span class="lg-highlight-string">"DataKeyId [base64]: "</span> + base64DataKeyId);</td></tr><tr class=""><td class="leafygreen-ui-7razhx">clientEncryption.<span class="lg-highlight-title lg-highlight-function">close</span>();</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">const</span> client <!-- -->= <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">MongoClient</span>(<!-- -->uri)<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">await</span> client.<span class="lg-highlight-title lg-highlight-function">connect</span>(<!-- -->)<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">const</span> encryption <!-- -->= <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">ClientEncryption</span>(<!-- -->client<!-- -->, <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->keyVaultNamespace<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->kmsProviders<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx">})<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">const</span> key <!-- -->= <span class="lg-highlight-keyword">await</span> encryption.<span class="lg-highlight-title lg-highlight-function">createDataKey</span>(<!-- -->provider<!-- -->, <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">masterKey</span>: <!-- -->masterKey<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx">})<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-variable lg-highlight-language">console</span>.<span class="lg-highlight-title lg-highlight-function">log</span>(<span class="lg-highlight-string">"DataKeyId [base64]: "</span>, <!-- -->key.<span class="lg-highlight-title lg-highlight-function">toString</span>(<span class="lg-highlight-string">"base64"</span>))<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">await</span> keyVaultClient.<span class="lg-highlight-title lg-highlight-function">close</span>(<!-- -->)<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">await</span> client.<span class="lg-highlight-title lg-highlight-function">close</span>(<!-- -->)<!-- -->;</td></tr></tbody></table></code></pre>
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<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
Import ClientEncryption
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
When using the Node.js driver v6.0 and later, you must import
<code class="leafygreen-ui-1l06pbn">
ClientEncryption
</code>
from
<code class="leafygreen-ui-1l06pbn">
mongodb
</code>
.
</p>
<p class="leafygreen-ui-1kp3ins">
For earlier driver versions, import
<code class="leafygreen-ui-1l06pbn">
ClientEncryption
</code>
from
<code class="leafygreen-ui-1l06pbn">
mongodb-client-encryption
</code>
.
</p>
</div>
</div>
</div>
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<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"key_vault_database = \"encryption\"\nkey_vault_collection = \"__keyVault\"\nkey_vault_namespace = f\"{key_vault_database}.{key_vault_collection}\"\n\nclient = MongoClient(connection_string)\nclient_encryption = ClientEncryption(\n kms_providers, # pass in the kms_providers variable from the previous step\n key_vault_namespace,\n client,\n CodecOptions(uuid_representation=STANDARD),\n)\ndata_key_id = client_encryption.create_data_key(provider, master_key)\n\nbase_64_data_key_id = base64.b64encode(data_key_id)\nprint(\"DataKeyId [base64]: \", base_64_data_key_id)","programmingLanguage":"Python"}
</script>
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<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">key_vault_database = <span class="lg-highlight-string">"encryption"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">key_vault_collection = <span class="lg-highlight-string">"__keyVault"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">key_vault_namespace = f<span class="lg-highlight-string">"{key_vault_database}.{key_vault_collection}"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">client = <span class="lg-highlight-title lg-highlight-class">MongoClient</span>(connection_string)</td></tr><tr class=""><td class="leafygreen-ui-7razhx">client_encryption = <span class="lg-highlight-title lg-highlight-class">ClientEncryption</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> kms_providers, # pass <span class="lg-highlight-keyword">in</span> the kms_providers variable <span class="lg-highlight-keyword">from</span> the previous step</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> key_vault_namespace,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> client,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-class">CodecOptions</span>(uuid_representation=<span class="lg-highlight-variable lg-highlight-constant">STANDARD</span>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr><tr class=""><td class="leafygreen-ui-7razhx">data_key_id = client_encryption.<span class="lg-highlight-title lg-highlight-function">create_data_key</span>(provider, master_key)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">base_64_data_key_id = base64.<span class="lg-highlight-title lg-highlight-function">b64encode</span>(data_key_id)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">print</span>(<span class="lg-highlight-string">"DataKeyId [base64]: "</span>, base_64_data_key_id)</td></tr></tbody></table></code></pre>
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<path clip-rule="evenodd" d="M29.8235 13.3214C29.932 13.2605 29.9931 13.1454 29.9931 13.0235V12.218C29.9931 12.0961 29.9253 11.981 29.8235 11.9201L26.9687 10.2683C26.8602 10.2074 26.7314 10.2074 26.6228 10.2683L23.7476 11.9269C23.6391 11.9878 23.5713 12.1029 23.5713 12.2247V15.535C23.5713 15.6569 23.6391 15.772 23.7476 15.8328L26.6025 17.4575C26.7109 17.5185 26.8398 17.5185 26.9415 17.4575L28.6707 16.4963C28.725 16.4692 28.7589 16.4083 28.7589 16.3474C28.7589 16.2864 28.725 16.2255 28.6707 16.1984L25.782 14.5399C25.7277 14.506 25.6938 14.4519 25.6938 14.391V13.3552C25.6938 13.2943 25.7277 13.2334 25.782 13.2063L26.6839 12.6918C26.7381 12.658 26.8059 12.658 26.8602 12.6918L27.7621 13.2063C27.8163 13.2402 27.8502 13.2943 27.8502 13.3552V14.1676C27.8502 14.2285 27.8841 14.2894 27.9384 14.3165C27.9927 14.3504 28.0605 14.3504 28.1147 14.3165L29.8235 13.3214Z" fill="black" fill-rule="evenodd">
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<lineargradient gradientunits="userSpaceOnUse" id=":r8u:paint1" x1="10.6159" x2="17.9826" y1="14.2811" y2="8.83932">
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<lineargradient gradientunits="userSpaceOnUse" id=":r8u:paint2" x1="7.69907" x2="14.4172" y1="13.8874" y2="13.8874">
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<div aria-live="polite" aria-relevant="all" class="leafygreen-ui-11ydt2g" data-lgid="lg-form_field-feedback" data-testid="lg-form_field-feedback">
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<button aria-disabled="false" aria-label="Copy" class="leafygreen-ui-1c6zwke" data-testid="code_copy-button" tabindex="0">
<div class="leafygreen-ui-xhlipt">
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<path clip-rule="evenodd" d="M1 5.71428V10.2857C1 11.2325 1.76751 12 2.71429 12H5.75V7.10957C5.75 6.54414 5.97724 6.00244 6.38065 5.60623L8.67403 3.35381C8.77447 3.25516 8.88376 3.16757 9 3.09182V2.71429C9 1.76751 8.23249 1 7.28571 1H5.8V4.42857C5.8 5.13865 5.22437 5.71428 4.51429 5.71428H1ZM9 4.78571L7.25654 6.49804C7.24689 6.50752 7.23749 6.5172 7.22834 6.52708C7.22208 6.53383 7.21594 6.54068 7.20991 6.54762C7.07504 6.70295 7 6.90234 7 7.10957V7.79762H9H10.0095C10.4829 7.79762 10.8667 7.41386 10.8667 6.94047V4H10.1505C9.92587 4 9.7102 4.0882 9.54992 4.24562L9 4.78571ZM4.86667 1H4.15053C3.92587 1 3.7102 1.0882 3.54992 1.24562L1.25654 3.49804C1.09244 3.65921 1 3.87957 1 4.10957V4.79762H4.00952C4.48291 4.79762 4.86667 4.41386 4.86667 3.94047V1ZM7 12V8.71428H9H10.5143C11.2244 8.71428 11.8 8.13865 11.8 7.42857V4H13.2857C14.2325 4 15 4.76751 15 5.71429V13.2857C15 14.2325 14.2325 15 13.2857 15H8.71429C7.76751 15 7 14.2325 7 13.2857V12Z" fill="currentColor" fill-rule="evenodd">
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</div>
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</div>
</div>
</div>
</div>
</div>
</div>
</div>
</li>
</ol>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
Learn More
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
To view a diagram showing how your client application creates your
Data Encryption Key when using an Azure Key Vault, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/queryable-encryption/fundamentals/kms-providers/#std-label-qe-fundamentals-kms-providers-azure-architecture">
Architecture
<!-- -->
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
To learn more about the options for creating a Data Encryption Key
encrypted with a Customer Master Key hosted in Azure Key Vault, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/queryable-encryption/fundamentals/kms-providers/#std-label-qe-kms-provider-object-azure">
kmsProviders Object
</a>
and
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/queryable-encryption/fundamentals/kms-providers/#std-label-qe-kms-datakeyopts-azure">
dataKeyOpts Object
<!-- -->
.
</a>
</p>
</div>
</div>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
See: Complete Code
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<div aria-hidden="true">
</div>
<div class="leafygreen-ui-f2qztv" data-lgid="lg-tabs">
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<button aria-controls="_kb2hfc0p2" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_9eof10dob" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
C#
</div>
</button>
<button aria-controls="_pbctrqxzg" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_sbrnaeym7" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Go
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</button>
<button aria-controls="_82b4kqb24" aria-selected="false" class="leafygreen-ui-1ogxb8f" data-text="" id="_4pi8b0faf" name="" role="tab" tabindex="-1">
<div class="leafygreen-ui-1nxuzmg">
Java (Sync)
</div>
</button>
<button aria-controls="_corftwfd4" aria-selected="true" class="leafygreen-ui-1l773z1" data-text="" id="_64lasq0qo" name="" role="tab" tabindex="0">
<div class="leafygreen-ui-1nxuzmg">
Node.js
</div>
</button>
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<div class="leafygreen-ui-1nxuzmg">
Python
</div>
</button>
</div>
<div class="leafygreen-ui-ov1ktg">
<div class="leafygreen-ui-1sg2lsz">
</div>
</div>
</div>
<div class="lg-ui-tab-panels-0000" data-lgid="lg-tabs-tab_panels">
<div>
<div aria-labelledby="_6pu2tripi" class="leafygreen-ui-38lglc" id="_5a6n0o9l6" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To view the complete code for making a Data Encryption Key, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://github.com/mongodb/docs/tree/master/source/includes/generated/in-use-encryption/csfle/dotnet/azure/reader/CSFLE/MakeDataKey.cs" rel="noopener noreferrer">
<span>
our Github repository
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
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</svg>
</a>
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_5tt8mclbn" class="leafygreen-ui-38lglc" id="_z4md385j6" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To view the complete code for making a Data Encryption Key, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://github.com/mongodb/docs/tree/master/source/includes/generated/in-use-encryption/csfle/go/azure/reader/make-data-key.go" rel="noopener noreferrer">
<span>
our Github repository
<!-- -->
.
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
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</svg>
</a>
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_m9w3o0src" class="leafygreen-ui-38lglc" id="_sxkipfhuz" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To view the complete code for making a Data Encryption Key, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://github.com/mongodb/docs/tree/master/source/includes/generated/in-use-encryption/csfle/java/azure/reader/src/main/java/com/mongodb/csfle/MakeDataKey.java" rel="noopener noreferrer">
<span>
our Github repository
<!-- -->
.
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_nah83rezd" class="" id="_m4xnfmsp0" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To view the complete code for making a Data Encryption Key, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://github.com/mongodb/docs/tree/master/source/includes/generated/in-use-encryption/csfle/node/azure/reader/make_data_key.js" rel="noopener noreferrer">
<span>
our Github repository
<!-- -->
.
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_7uruj6n15" class="leafygreen-ui-38lglc" id="_wj7gxi5co" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To view the complete code for making a Data Encryption Key, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://github.com/mongodb/docs/tree/master/source/includes/generated/in-use-encryption/csfle/python/azure/reader/make_data_key.py" rel="noopener noreferrer">
<span>
our Github repository
<!-- -->
.
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</section>
</div>
</div>
<div class="css-1nuklj8 e1ckbxcu1">
<div class="css-18fui5z e1ckbxcu0">
<div class="css-19lsqsq e1ckbxcu2">
3
</div>
</div>
<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Configure the MongoClient
<a class="headerlink leafygreen-ui-1kepx47" href="#configure-the-mongoclient" title="Permalink to this heading">
<svg aria-label="Link Icon" class="leafygreen-ui-a30zj9" fill="none" height="12" role="img" viewbox="0 0 16 16" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M6.039 9.953a3.596 3.596 0 0 1-.327-.38l1.45-1.445a1.553 1.553 0 0 0 2.496.423l2.885-2.87a1.57 1.57 0 0 0 .01-2.213 1.553 1.553 0 0 0-2.203-.01l-.379.377A.995.995 0 0 1 8.56 3.83a1.005 1.005 0 0 1 .006-1.418l.38-.377a3.542 3.542 0 0 1 5.024.023 3.58 3.58 0 0 1-.022 5.047l-2.884 2.871a3.542 3.542 0 0 1-5.025-.022Z" fill="currentColor">
</path>
<path d="M9.961 6.047c.12.12.228.248.327.38l-1.45 1.445a1.553 1.553 0 0 0-2.496-.423l-2.885 2.87a1.57 1.57 0 0 0-.01 2.213 1.553 1.553 0 0 0 2.203.01l.379-.377a.995.995 0 0 1 1.411.006 1.005 1.005 0 0 1-.006 1.418l-.38.377a3.542 3.542 0 0 1-5.024-.023 3.58 3.58 0 0 1 .022-5.047l2.884-2.871a3.542 3.542 0 0 1 5.025.022Z" fill="currentColor">
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<div class="css-1btu0w3 evvkmar0" id="configure-the-mongoclient">
</div>
</a>
</h3>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Follow the remaining steps in this tutorial in a separate file from the
one created in the previous steps.
</p>
<div aria-hidden="true">
</div>
<div class="leafygreen-ui-f2qztv" data-lgid="lg-tabs">
<div class="leafygreen-ui-jp7pox" id="tabs-22">
<div aria-label="Tabs to describe usage of drivers" aria-orientation="horizontal" class="leafygreen-ui-m8p1vb lg-ui-tab-list-0000" data-lgid="lg-tabs-tab_list" role="tablist">
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C#
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Go
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Java (Sync)
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<button aria-controls="_ashq6pt2b" aria-selected="true" class="leafygreen-ui-1l773z1" data-text="" id="_ywvwohxeo" name="" role="tab" tabindex="0">
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Node.js
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Python
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<div class="leafygreen-ui-1sg2lsz">
</div>
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<div class="lg-ui-tab-panels-0000" data-lgid="lg-tabs-tab_panels">
<div>
<div aria-labelledby="_rscqohfm9" class="leafygreen-ui-38lglc" id="_jaqa5wwcc" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To view the complete code for this file, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://github.com/mongodb/docs/tree/master/source/includes/generated/in-use-encryption/csfle/dotnet/azure/reader/CSFLE/InsertEncryptedDocument.cs" rel="noopener noreferrer">
<span>
our Github repository
</span>
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<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
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</div>
</div>
<div>
<div aria-labelledby="_idxeclk5v" class="leafygreen-ui-38lglc" id="_embb3fshc" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To view the complete code for this file, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://github.com/mongodb/docs/tree/master/source/includes/generated/in-use-encryption/csfle/go/azure/reader/insert-encrypted-document.go" rel="noopener noreferrer">
<span>
our Github repository
<!-- -->
.
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
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</div>
</div>
</div>
<div>
<div aria-labelledby="_kb8782zk6" class="leafygreen-ui-38lglc" id="_iij569chj" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To view the complete code for this file, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://github.com/mongodb/docs/tree/master/source/includes/generated/in-use-encryption/csfle/java/azure/reader/src/main/java/com/mongodb/csfle/InsertEncryptedDocument.java" rel="noopener noreferrer">
<span>
our Github repository
<!-- -->
.
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
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</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_uuijmnjgu" class="" id="_4sameizo8" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To view the complete code for this file, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://github.com/mongodb/docs/tree/master/source/includes/generated/in-use-encryption/csfle/node/azure/reader/insert_encrypted_document.js" rel="noopener noreferrer">
<span>
our Github repository
<!-- -->
.
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
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</a>
</p>
</div>
</div>
</div>
<div>
<div aria-labelledby="_0mijz1k1c" class="leafygreen-ui-38lglc" id="_16qespqwx" role="tabpanel">
<div class="leafygreen-ui-1kdmo88">
<p class="leafygreen-ui-1kp3ins">
To view the complete code for this file, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://github.com/mongodb/docs/tree/master/source/includes/generated/in-use-encryption/csfle/python/azure/reader/insert_encrypted_document.py" rel="noopener noreferrer">
<span>
our Github repository
<!-- -->
.
</span>
<svg alt="" aria-hidden="true" class="leafygreen-ui-1ie5kuq" height="16" role="presentation" viewbox="0 0 16 16" width="16">
<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
</path>
<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
</path>
</svg>
</a>
</p>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<ol class="leafygreen-ui-rioki0" type="a">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Specify the Key Vault Collection Namespace
</p>
<p class="leafygreen-ui-1kp3ins">
Specify
<code class="leafygreen-ui-1l06pbn">
encryption.__keyVault
</code>
as the Key Vault collection
namespace.
</p>
<div aria-hidden="true">
</div>
<div class="leafygreen-ui-f2qztv" data-lgid="lg-tabs">
<div class="leafygreen-ui-jp7pox" id="tabs-23">
<div aria-label="Tabs to describe usage of drivers" aria-orientation="horizontal" class="leafygreen-ui-m8p1vb lg-ui-tab-list-0000" data-lgid="lg-tabs-tab_list" role="tablist">
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Java (Sync)
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Node.js
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<div class="leafygreen-ui-1kdmo88">
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"var keyVaultNamespace = CollectionNamespace.FromFullName(\"encryption.__keyVault\");","programmingLanguage":"C#"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-1q4bxgx" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> keyVaultNamespace = <span class="lg-highlight-title lg-highlight-class">CollectionNamespace</span>.<span class="lg-highlight-title lg-highlight-class">FromFullName</span>(<span class="lg-highlight-string">"encryption.__keyVault"</span>);</td></tr></tbody></table></code></pre>
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Specify your Azure Credentials
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Specify the
<code class="leafygreen-ui-1l06pbn">
azure
</code>
KMS provider and your Azure
credentials:
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{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"var kmsProviders = new Dictionary<string,>>();\nvar provider = \"azure\";\nvar azureKmsOptions = new Dictionary<string,>\n{\n { \"tenantId\", \"<your>\" },\n { \"clientId\", \"<your>\" },\n { \"clientSecret\", \"<your>\" },\n};\nkmsProviders.Add(provider, azureKmsOptions);","programmingLanguage":"C#"}
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> kmsProviders = <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Dictionary</span><string, <span class="lg-highlight-title lg-highlight-class">IReadOnlyDictionary</span><string, object>>();</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> provider = <span class="lg-highlight-string">"azure"</span>;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> azureKmsOptions = <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Dictionary</span><string, object></td></tr><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { <span class="lg-highlight-string">"tenantId"</span>, <span class="lg-highlight-string">"<Your Azure Tenant ID>"</span> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { <span class="lg-highlight-string">"clientId"</span>, <span class="lg-highlight-string">"<Your Azure Client ID>"</span> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { <span class="lg-highlight-string">"clientSecret"</span>, <span class="lg-highlight-string">"<Your Azure Client Secret>"</span> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx">};</td></tr><tr class=""><td class="leafygreen-ui-7razhx">kmsProviders.<span class="lg-highlight-title lg-highlight-class">Add</span>(provider, azureKmsOptions);</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">kmsProviders <!-- -->:<!-- -->= map[string]map[string]interface{}{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"azure"</span>: {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"tenantId"</span>: <span class="lg-highlight-string">"<Your Azure Tenant ID>"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"clientId"</span>: <span class="lg-highlight-string">"<Your Azure Client ID>"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"clientSecret"</span>: <span class="lg-highlight-string">"<Your Azure Client Secret>"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">String</span> kmsProvider = <span class="lg-highlight-string">"azure"</span>;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">Map</span><<span class="lg-highlight-title lg-highlight-class">String</span>, <span class="lg-highlight-title lg-highlight-class">Map</span><<span class="lg-highlight-title lg-highlight-class">String</span>, <span class="lg-highlight-title lg-highlight-class">Object</span>>> kmsProviders = <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">HashMap</span><<span class="lg-highlight-title lg-highlight-class">String</span>, <span class="lg-highlight-title lg-highlight-class">Map</span><<span class="lg-highlight-title lg-highlight-class">String</span>, <span class="lg-highlight-title lg-highlight-class">Object</span>>>();</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">Map</span><<span class="lg-highlight-title lg-highlight-class">String</span>, <span class="lg-highlight-title lg-highlight-class">Object</span>> providerDetails = <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">HashMap</span><>();</td></tr><tr class=""><td class="leafygreen-ui-7razhx">providerDetails.<span class="lg-highlight-title lg-highlight-function">put</span>(<span class="lg-highlight-string">"tenantId"</span>, <span class="lg-highlight-string">"<Azure account organization>"</span>);</td></tr><tr class=""><td class="leafygreen-ui-7razhx">providerDetails.<span class="lg-highlight-title lg-highlight-function">put</span>(<span class="lg-highlight-string">"clientId"</span>, <span class="lg-highlight-string">"<Azure client ID>"</span>);</td></tr><tr class=""><td class="leafygreen-ui-7razhx">providerDetails.<span class="lg-highlight-title lg-highlight-function">put</span>(<span class="lg-highlight-string">"clientSecret"</span>, <span class="lg-highlight-string">"<Azure client secret>"</span>);</td></tr><tr class=""><td class="leafygreen-ui-7razhx">kmsProviders.<span class="lg-highlight-title lg-highlight-function">put</span>(kmsProvider, providerDetails);</td></tr></tbody></table></code></pre>
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<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
<h3 class="leafygreen-ui-144d5kf">
<strong>
Azure Virtual Machine Managed Identities
</strong>
</h3>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
If your client runs on an Azure Virtual Machine (VM), you can allow the
VM to use its Managed Identity to authenticate to your key vault.
</p>
<p class="leafygreen-ui-1kp3ins">
To allow the Azure VM to automatically provide your credentials,
assign an empty map instead of one that contains your Azure
credentials as shown in the following code:
</p>
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{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"String kmsProvider = \"azure\";\nMap<string,>> kmsProviders = new HashMap<string,>>();\nMap<string,> providerDetails = new HashMap<>();\nkmsProviders.put(kmsProvider, providerDetails);","programmingLanguage":"Java"}
</script>
<div class="css-16lmvu9">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">String</span> kmsProvider = <span class="lg-highlight-string">"azure"</span>;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">Map</span><<span class="lg-highlight-title lg-highlight-class">String</span>, <span class="lg-highlight-title lg-highlight-class">Map</span><<span class="lg-highlight-title lg-highlight-class">String</span>, <span class="lg-highlight-title lg-highlight-class">Object</span>>> kmsProviders = <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">HashMap</span><<span class="lg-highlight-title lg-highlight-class">String</span>, <span class="lg-highlight-title lg-highlight-class">Map</span><<span class="lg-highlight-title lg-highlight-class">String</span>, <span class="lg-highlight-title lg-highlight-class">Object</span>>>();</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">Map</span><<span class="lg-highlight-title lg-highlight-class">String</span>, <span class="lg-highlight-title lg-highlight-class">Object</span>> providerDetails = <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">HashMap</span><>();</td></tr><tr class=""><td class="leafygreen-ui-7razhx">kmsProviders.<span class="lg-highlight-title lg-highlight-function">put</span>(kmsProvider, providerDetails);</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">const</span> kmsProviders <!-- -->= <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">azure</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">tenantId</span>: <span class="lg-highlight-string">"<Your Tenant ID>"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">clientId</span>: <span class="lg-highlight-string">"<Your Client ID>"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">clientSecret</span>: <span class="lg-highlight-string">"<Your Client Secret>"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}<!-- -->;</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">provider = <span class="lg-highlight-string">"azure"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">kms_providers = {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"azure"</span>: {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"tenantId"</span>: <span class="lg-highlight-string">"<Azure account organization>"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"clientId"</span>: <span class="lg-highlight-string">"<Azure client ID>"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"clientSecret"</span>: <span class="lg-highlight-string">"<Azure client secret>"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
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Add Your Data Encryption Key Base64 ID
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Make sure to update the following code to include your Base64
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<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"var keyId = \"<your>\";\nvar schema = new BsonDocument\n{\n { \"bsonType\", \"object\" },\n {\n \"encryptMetadata\",\n new BsonDocument(\"keyId\", new BsonArray(new[] { new BsonBinaryData(Convert.FromBase64String(keyId), BsonBinarySubType.UuidStandard) }))\n },\n {\n \"properties\",\n new BsonDocument\n {\n {\n \"ssn\", new BsonDocument\n {\n {\n \"encrypt\", new BsonDocument\n {\n { \"bsonType\", \"int\" },\n { \"algorithm\", \"AEAD_AES_256_CBC_HMAC_SHA_512-Deterministic\" }\n }\n }\n }\n },\n {\n \"bloodType\", new BsonDocument\n {\n {\n \"encrypt\", new BsonDocument\n {\n { \"bsonType\", \"string\" },\n { \"algorithm\", \"AEAD_AES_256_CBC_HMAC_SHA_512-Random\" }\n }\n }\n }\n },\n {\n \"medicalRecords\", new BsonDocument\n {\n {\n \"encrypt\", new BsonDocument\n {\n { \"bsonType\", \"array\" },\n { \"algorithm\", \"AEAD_AES_256_CBC_HMAC_SHA_512-Random\" }\n }\n }\n }\n },\n {\n \"insurance\", new BsonDocument\n {\n { \"bsonType\", \"object\" },\n {\n \"properties\", new BsonDocument\n {\n {\n \"policyNumber\", new BsonDocument\n {\n {\n \"encrypt\", new BsonDocument\n {\n { \"bsonType\", \"int\" },\n { \"algorithm\", \"AEAD_AES_256_CBC_HMAC_SHA_512-Deterministic\" }\n }\n }\n }\n }\n }\n }\n }\n }\n }\n }\n};\nvar schemaMap = new Dictionary<string,>();\nschemaMap.Add(dbNamespace, schema);","programmingLanguage":"C#"}
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> keyId = <span class="lg-highlight-string">"<Your base64 DEK ID here>"</span>;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> schema = <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">BsonDocument</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { <span class="lg-highlight-string">"bsonType"</span>, <span class="lg-highlight-string">"object"</span> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"encryptMetadata"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">BsonDocument</span>(<span class="lg-highlight-string">"keyId"</span>, <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">BsonArray</span>(<span class="lg-highlight-keyword">new</span>[] { <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">BsonBinaryData</span>(<span class="lg-highlight-title lg-highlight-class">Convert</span>.<span class="lg-highlight-title lg-highlight-class">FromBase64String</span>(keyId), <span class="lg-highlight-title lg-highlight-class">BsonBinarySubType</span>.<span class="lg-highlight-property">UuidStandard</span>) }))</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"properties"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">BsonDocument</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"ssn"</span>, <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">BsonDocument</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"encrypt"</span>, <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">BsonDocument</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { <span class="lg-highlight-string">"bsonType"</span>, <span class="lg-highlight-string">"int"</span> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { <span class="lg-highlight-string">"algorithm"</span>, <span class="lg-highlight-string">"AEAD_AES_256_CBC_HMAC_SHA_512-Deterministic"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"bloodType"</span>, <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">BsonDocument</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"encrypt"</span>, <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">BsonDocument</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { <span class="lg-highlight-string">"bsonType"</span>, <span class="lg-highlight-string">"string"</span> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { <span class="lg-highlight-string">"algorithm"</span>, <span class="lg-highlight-string">"AEAD_AES_256_CBC_HMAC_SHA_512-Random"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"medicalRecords"</span>, <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">BsonDocument</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"encrypt"</span>, <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">BsonDocument</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { <span class="lg-highlight-string">"bsonType"</span>, <span class="lg-highlight-string">"array"</span> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { <span class="lg-highlight-string">"algorithm"</span>, <span class="lg-highlight-string">"AEAD_AES_256_CBC_HMAC_SHA_512-Random"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"insurance"</span>, <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">BsonDocument</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { <span class="lg-highlight-string">"bsonType"</span>, <span class="lg-highlight-string">"object"</span> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"properties"</span>, <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">BsonDocument</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"policyNumber"</span>, <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">BsonDocument</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"encrypt"</span>, <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">BsonDocument</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { <span class="lg-highlight-string">"bsonType"</span>, <span class="lg-highlight-string">"int"</span> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { <span class="lg-highlight-string">"algorithm"</span>, <span class="lg-highlight-string">"AEAD_AES_256_CBC_HMAC_SHA_512-Deterministic"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">};</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> schemaMap = <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Dictionary</span><string, <span class="lg-highlight-title lg-highlight-class">BsonDocument</span>>();</td></tr><tr class=""><td class="leafygreen-ui-7razhx">schemaMap.<span class="lg-highlight-title lg-highlight-class">Add</span>(dbNamespace, schema);</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">dek_id <!-- -->:<!-- -->= <span class="lg-highlight-string">"<Your Base64 DEK ID>"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">schema_template <!-- -->:<!-- -->= <span class="lg-highlight-string">`{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> "bsonType": "object",</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> "encryptMetadata": {</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> "keyId": [</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> {</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> "$binary": {</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> "base64": "%s",</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> "subType": "04"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> }</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> }</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> ]</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> },</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> "properties": {</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> "insurance": {</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> "bsonType": "object",</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> "properties": {</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> "policyNumber": {</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> "encrypt": {</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> "bsonType": "int",</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> "algorithm": "AEAD_AES_256_CBC_HMAC_SHA_512-Deterministic"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> }</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> }</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> }</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> },</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> "medicalRecords": {</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> "encrypt": {</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> "bsonType": "array",</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> "algorithm": "AEAD_AES_256_CBC_HMAC_SHA_512-Random"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> }</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> },</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> "bloodType": {</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> "encrypt": {</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> "bsonType": "string",</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> "algorithm": "AEAD_AES_256_CBC_HMAC_SHA_512-Random"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> }</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> },</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> "ssn": {</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> "encrypt": {</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> "bsonType": "int",</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> "algorithm": "AEAD_AES_256_CBC_HMAC_SHA_512-Deterministic"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> }</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> }</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string"> }</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-string">}`</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">schema <!-- -->:<!-- -->= fmt.<span class="lg-highlight-title lg-highlight-class">Sprintf</span>(schema_template, dek_id)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> schemaDoc bson.<span class="lg-highlight-property">Raw</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">if</span> err <!-- -->:<!-- -->= bson.<span class="lg-highlight-title lg-highlight-class">UnmarshalExtJSON</span>([]<span class="lg-highlight-title lg-highlight-function">byte</span>(schema), <span class="lg-highlight-literal">true</span>, &schemaDoc); err != nil {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">return</span> fmt.<span class="lg-highlight-title lg-highlight-class">Errorf</span>(<span class="lg-highlight-string">"UnmarshalExtJSON error: %v"</span>, err)</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr><tr class=""><td class="leafygreen-ui-7razhx">schemaMap <!-- -->:<!-- -->= map[string]interface{}{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> dbName + <span class="lg-highlight-string">"."</span> + <span class="lg-highlight-attr">collName</span>: schemaDoc,</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">String</span> dekId = <span class="lg-highlight-string">"<paste-base-64-encoded-data-encryption-key-id>>"</span>;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">Document</span> jsonSchema = <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Document</span>().<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"bsonType"</span>, <span class="lg-highlight-string">"object"</span>).<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"encryptMetadata"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Document</span>().<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"keyId"</span>, <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">ArrayList</span><>((<span class="lg-highlight-title lg-highlight-class">Arrays</span>.<span class="lg-highlight-title lg-highlight-function">asList</span>(<span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Document</span>().<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"$binary"</span>, <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Document</span>()</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"base64"</span>, dekId)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"subType"</span>, <span class="lg-highlight-string">"04"</span>)))))))</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"properties"</span>, <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Document</span>()</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"ssn"</span>, <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Document</span>().<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"encrypt"</span>, <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Document</span>()</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"bsonType"</span>, <span class="lg-highlight-string">"int"</span>)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"algorithm"</span>, <span class="lg-highlight-string">"AEAD_AES_256_CBC_HMAC_SHA_512-Deterministic"</span>)))</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"bloodType"</span>, <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Document</span>().<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"encrypt"</span>, <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Document</span>()</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"bsonType"</span>, <span class="lg-highlight-string">"string"</span>)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"algorithm"</span>, <span class="lg-highlight-string">"AEAD_AES_256_CBC_HMAC_SHA_512-Random"</span>)))</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"medicalRecords"</span>, <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Document</span>().<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"encrypt"</span>, <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Document</span>()</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"bsonType"</span>, <span class="lg-highlight-string">"array"</span>)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"algorithm"</span>, <span class="lg-highlight-string">"AEAD_AES_256_CBC_HMAC_SHA_512-Random"</span>)))</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"insurance"</span>, <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Document</span>()</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"bsonType"</span>, <span class="lg-highlight-string">"object"</span>)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"properties"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Document</span>().<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"policyNumber"</span>, <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Document</span>().<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"encrypt"</span>, <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Document</span>()</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"bsonType"</span>, <span class="lg-highlight-string">"int"</span>)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"algorithm"</span>, <span class="lg-highlight-string">"AEAD_AES_256_CBC_HMAC_SHA_512-Deterministic"</span>))))));</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">HashMap</span><<span class="lg-highlight-title lg-highlight-class">String</span>, <span class="lg-highlight-title lg-highlight-class">BsonDocument</span>> schemaMap = <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">HashMap</span><<span class="lg-highlight-title lg-highlight-class">String</span>, <span class="lg-highlight-title lg-highlight-class">BsonDocument</span>>();</td></tr><tr class=""><td class="leafygreen-ui-7razhx">schemaMap.<span class="lg-highlight-title lg-highlight-function">put</span>(<span class="lg-highlight-string">"medicalRecords.patients"</span>, <span class="lg-highlight-title lg-highlight-class">BsonDocument</span>.<span class="lg-highlight-title lg-highlight-function">parse</span>(jsonSchema.<span class="lg-highlight-title lg-highlight-function">toJson</span>()));</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">dataKey <!-- -->= <span class="lg-highlight-string">"<Your base64 DEK ID>"</span>;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">const</span> schema <!-- -->= <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">bsonType</span>: <span class="lg-highlight-string">"object"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">encryptMetadata</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">keyId</span>: <!-- -->[<span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Binary</span>(<span class="lg-highlight-title lg-highlight-class">Buffer</span>.<span class="lg-highlight-title lg-highlight-function">from</span>(<!-- -->dataKey<!-- -->, <span class="lg-highlight-string">"base64"</span>)<!-- -->, <span class="lg-highlight-number">4</span>)]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">properties</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">insurance</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">bsonType</span>: <span class="lg-highlight-string">"object"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">properties</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">policyNumber</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">encrypt</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">bsonType</span>: <span class="lg-highlight-string">"int"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">algorithm</span>: <span class="lg-highlight-string">"AEAD_AES_256_CBC_HMAC_SHA_512-Deterministic"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">medicalRecords</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">encrypt</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">bsonType</span>: <span class="lg-highlight-string">"array"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">algorithm</span>: <span class="lg-highlight-string">"AEAD_AES_256_CBC_HMAC_SHA_512-Random"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">bloodType</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">encrypt</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">bsonType</span>: <span class="lg-highlight-string">"string"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">algorithm</span>: <span class="lg-highlight-string">"AEAD_AES_256_CBC_HMAC_SHA_512-Random"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">ssn</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">encrypt</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">bsonType</span>: <span class="lg-highlight-string">"int"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">algorithm</span>: <span class="lg-highlight-string">"AEAD_AES_256_CBC_HMAC_SHA_512-Deterministic"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> patientSchema <!-- -->= <!-- -->{<!-- -->}<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">patientSchema<!-- -->[<!-- -->namespace] <!-- -->= <!-- -->schema<!-- -->;</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">dek_id = b<span class="lg-highlight-string">"<paste-base-64-encoded-data-encryption-key-id>"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">json_schema = {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"bsonType"</span>: <span class="lg-highlight-string">"object"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"encryptMetadata"</span>: {<span class="lg-highlight-string">"keyId"</span>: [<span class="lg-highlight-title lg-highlight-class">Binary</span>(base64.<span class="lg-highlight-title lg-highlight-function">b64decode</span>(dek_id), <span class="lg-highlight-variable lg-highlight-constant">UUID_SUBTYPE</span>)]},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"properties"</span>: {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"insurance"</span>: {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"bsonType"</span>: <span class="lg-highlight-string">"object"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"properties"</span>: {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"policyNumber"</span>: {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"encrypt"</span>: {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"bsonType"</span>: <span class="lg-highlight-string">"int"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"algorithm"</span>: <span class="lg-highlight-string">"AEAD_AES_256_CBC_HMAC_SHA_512-Deterministic"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"medicalRecords"</span>: {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"encrypt"</span>: {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"bsonType"</span>: <span class="lg-highlight-string">"array"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"algorithm"</span>: <span class="lg-highlight-string">"AEAD_AES_256_CBC_HMAC_SHA_512-Random"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"bloodType"</span>: {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"encrypt"</span>: {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"bsonType"</span>: <span class="lg-highlight-string">"string"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"algorithm"</span>: <span class="lg-highlight-string">"AEAD_AES_256_CBC_HMAC_SHA_512-Random"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"ssn"</span>: {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"encrypt"</span>: {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"bsonType"</span>: <span class="lg-highlight-string">"int"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"algorithm"</span>: <span class="lg-highlight-string">"AEAD_AES_256_CBC_HMAC_SHA_512-Deterministic"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">patient_schema = {<span class="lg-highlight-string">"medicalRecords.patients"</span>: json_schema}</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> mongoBinariesPath = <span class="lg-highlight-string">"<Full path to your Automatic Encryption Shared Library>"</span>;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> extraOptions = <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Dictionary</span><string, object>()</td></tr><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { <span class="lg-highlight-string">"cryptSharedLibPath"</span>, mongoBinariesPath },</td></tr><tr class=""><td class="leafygreen-ui-7razhx">};</td></tr></tbody></table></code></pre>
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{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"Map<string,> extraOptions = new HashMap<string,>();\nextraOptions.put(\"cryptSharedLibPath\", \"<full>\"));","programmingLanguage":"Java"}
</script>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">Map</span><<span class="lg-highlight-title lg-highlight-class">String</span>, <span class="lg-highlight-title lg-highlight-class">Object</span>> extraOptions = <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">HashMap</span><<span class="lg-highlight-title lg-highlight-class">String</span>, <span class="lg-highlight-title lg-highlight-class">Object</span>>();</td></tr><tr class=""><td class="leafygreen-ui-7razhx">extraOptions.<span class="lg-highlight-title lg-highlight-function">put</span>(<span class="lg-highlight-string">"cryptSharedLibPath"</span>, <span class="lg-highlight-string">"<Full path to your Automatic Encryption Shared Library>"</span>));</td></tr></tbody></table></code></pre>
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<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"const extraOptions = {\n cryptSharedLibPath: \"<full>\",\n};","programmingLanguage":"JavaScript"}
</script>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">const</span> extraOptions <!-- -->= <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">cryptSharedLibPath</span>: <span class="lg-highlight-string">"<Full path to your Automatic Encryption Shared Library>"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}<!-- -->;</td></tr></tbody></table></code></pre>
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<h2 class="leafygreen-ui-6n7b7d">
Note
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<h3 class="leafygreen-ui-144d5kf">
<strong>
Automatic Encryption Options
</strong>
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<p class="leafygreen-ui-1kp3ins">
The automatic encryption options provide configuration
information to the Automatic Encryption Shared Library,
which modifies the application's behavior when accessing encrypted fields.
</p>
<p class="leafygreen-ui-1kp3ins">
To learn more about the Automatic Encryption Shared Library, see
the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/csfle/reference/install-library/#std-label-csfle-reference-shared-library">
Install and Configure a CSFLE Library
</a>
page.
</p>
</div>
</div>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Create the MongoClient
</p>
<p class="leafygreen-ui-1kp3ins">
Instantiate a MongoDB client object with the following automatic
encryption settings that use the variables declared in the previous steps:
</p>
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{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"MongoClientSettings.Extensions.AddAutoEncryption(); // .NET/C# Driver v3.0 or later only\nvar clientSettings = MongoClientSettings.FromConnectionString(connectionString);\nvar autoEncryptionOptions = new AutoEncryptionOptions(\n keyVaultNamespace: keyVaultNamespace,\n kmsProviders: kmsProviders,\n schemaMap: schemaMap,\n extraOptions: extraOptions\n );\nclientSettings.AutoEncryptionOptions = autoEncryptionOptions;\nvar secureClient = new MongoClient(clientSettings);","programmingLanguage":"C#"}
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">MongoClientSettings</span>.<span class="lg-highlight-property">Extensions</span>.<span class="lg-highlight-title lg-highlight-class">AddAutoEncryption</span>(); <span class="lg-highlight-comment">// .NET/C# Driver v3.0 or later only</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> clientSettings = <span class="lg-highlight-title lg-highlight-class">MongoClientSettings</span>.<span class="lg-highlight-title lg-highlight-class">FromConnectionString</span>(connectionString);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> autoEncryptionOptions = <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">AutoEncryptionOptions</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">keyVaultNamespace</span>: keyVaultNamespace,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">kmsProviders</span>: kmsProviders,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">schemaMap</span>: schemaMap,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">extraOptions</span>: extraOptions</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> );</td></tr><tr class=""><td class="leafygreen-ui-7razhx">clientSettings.<span class="lg-highlight-property">AutoEncryptionOptions</span> = autoEncryptionOptions;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> secureClient = <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">MongoClient</span>(clientSettings);</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> clientSettings = <span class="lg-highlight-title lg-highlight-class">MongoClientSettings</span>.<span class="lg-highlight-title lg-highlight-class">FromConnectionString</span>(connectionString);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> autoEncryptionOptions = <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">AutoEncryptionOptions</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">keyVaultNamespace</span>: keyVaultNamespace,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">kmsProviders</span>: kmsProviders,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">schemaMap</span>: schemaMap,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">extraOptions</span>: extraOptions</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> );</td></tr><tr class=""><td class="leafygreen-ui-7razhx">clientSettings.<span class="lg-highlight-property">AutoEncryptionOptions</span> = autoEncryptionOptions;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> secureClient = <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">MongoClient</span>(clientSettings);</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">autoEncryptionOpts <!-- -->:<!-- -->= options.<span class="lg-highlight-title lg-highlight-class">AutoEncryption</span>().</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-class">SetKmsProviders</span>(kmsProviders).</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-class">SetKeyVaultNamespace</span>(keyVaultNamespace).</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-class">SetSchemaMap</span>(schemaMap).</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-class">SetExtraOptions</span>(extraOptions)</td></tr><tr class=""><td class="leafygreen-ui-7razhx">secureClient<!-- -->, <!-- -->err := mongo.<span class="lg-highlight-title lg-highlight-class">Connect</span>(context.<span class="lg-highlight-title lg-highlight-function">TODO</span>(), options.<span class="lg-highlight-title lg-highlight-class">Client</span>().<span class="lg-highlight-title lg-highlight-class">ApplyURI</span>(uri).<span class="lg-highlight-title lg-highlight-class">SetAutoEncryptionOptions</span>(autoEncryptionOpts))</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">if</span> err != nil {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">return</span> fmt.<span class="lg-highlight-title lg-highlight-class">Errorf</span>(<span class="lg-highlight-string">"Connect error for encrypted client: %v"</span>, err)</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr><tr class=""><td class="leafygreen-ui-7razhx">defer <span class="lg-highlight-title lg-highlight-function">func</span>() {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> _ = secureClient.<span class="lg-highlight-title lg-highlight-class">Disconnect</span>(context.<span class="lg-highlight-title lg-highlight-function">TODO</span>())</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}()</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">MongoClientSettings</span> clientSettings = <span class="lg-highlight-title lg-highlight-class">MongoClientSettings</span>.<span class="lg-highlight-title lg-highlight-function">builder</span>()</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">applyConnectionString</span>(<span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">ConnectionString</span>(connectionString))</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">autoEncryptionSettings</span>(<span class="lg-highlight-title lg-highlight-class">AutoEncryptionSettings</span>.<span class="lg-highlight-title lg-highlight-function">builder</span>()</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">keyVaultNamespace</span>(keyVaultNamespace)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">kmsProviders</span>(kmsProviders)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">schemaMap</span>(schemaMap)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">extraOptions</span>(extraOptions)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">build</span>())</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">build</span>();</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">MongoClient</span> mongoClientSecure = <span class="lg-highlight-title lg-highlight-class">MongoClients</span>.<span class="lg-highlight-title lg-highlight-function">create</span>(clientSettings);</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">const</span> secureClient <!-- -->= <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">MongoClient</span>(<!-- -->connectionString<!-- -->, <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">autoEncryption</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->keyVaultNamespace<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->kmsProviders<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">schemaMap</span>: <!-- -->patientSchema<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">extraOptions</span>: <!-- -->extraOptions<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx">})<!-- -->;</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">fle_opts = <span class="lg-highlight-title lg-highlight-class">AutoEncryptionOpts</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> kms_providers, key_vault_namespace, schema_map=patient_schema, **extra_options</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr><tr class=""><td class="leafygreen-ui-7razhx">secureClient = <span class="lg-highlight-title lg-highlight-class">MongoClient</span>(connection_string, auto_encryption_opts=fle_opts)</td></tr></tbody></table></code></pre>
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<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Insert a Document with Encrypted Fields
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</h3>
<span class="leafygreen-ui-1qnjd6d" id="std-label-csfle-azure-insert">
</span>
<p class="leafygreen-ui-1kp3ins">
Use your CSFLE-enabled
<code class="leafygreen-ui-1l06pbn">
MongoClient
</code>
instance to insert a document with encrypted fields into the
<code class="leafygreen-ui-1l06pbn">
medicalRecords.patients
</code>
namespace using the following code
snippet:
</p>
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<div class="leafygreen-ui-1kdmo88">
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"var sampleDocFields = new BsonDocument\n{\n { \"name\", \"Jon Doe\" },\n { \"ssn\", 145014000 },\n { \"bloodType\", \"AB-\" },\n {\n \"medicalRecords\", new BsonArray\n {\n new BsonDocument(\"weight\", 180),\n new BsonDocument(\"bloodPressure\", \"120/80\")\n }\n },\n {\n \"insurance\", new BsonDocument\n {\n { \"policyNumber\", 123142 },\n { \"provider\", \"MaestCare\" }\n }\n }\n};\n\n// Construct an auto-encrypting client\nvar secureCollection = secureClient.GetDatabase(db).GetCollection<bsondocument>(coll);\n\n// Insert a document into the collection\nsecureCollection.InsertOne(sampleDocFields);","programmingLanguage":"C#"}
</script>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> sampleDocFields = <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">BsonDocument</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { <span class="lg-highlight-string">"name"</span>, <span class="lg-highlight-string">"Jon Doe"</span> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { <span class="lg-highlight-string">"ssn"</span>, <span class="lg-highlight-number">145014000</span> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { <span class="lg-highlight-string">"bloodType"</span>, <span class="lg-highlight-string">"AB-"</span> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"medicalRecords"</span>, <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">BsonArray</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">BsonDocument</span>(<span class="lg-highlight-string">"weight"</span>, <span class="lg-highlight-number">180</span>),</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">BsonDocument</span>(<span class="lg-highlight-string">"bloodPressure"</span>, <span class="lg-highlight-string">"120/80"</span>)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"insurance"</span>, <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">BsonDocument</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { <span class="lg-highlight-string">"policyNumber"</span>, <span class="lg-highlight-number">123142</span> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> { <span class="lg-highlight-string">"provider"</span>, <span class="lg-highlight-string">"MaestCare"</span> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx">};</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-comment">// Construct an auto-encrypting client</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> secureCollection = secureClient.<span class="lg-highlight-title lg-highlight-class">GetDatabase</span>(db).<span class="lg-highlight-property">GetCollection</span><<span class="lg-highlight-title lg-highlight-class">BsonDocument</span>>(coll);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-comment">//</span><span class="lg-highlight-comment"> Insert a document </span><span class="lg-highlight-comment">into the collection</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">secureCollection.<span class="lg-highlight-title lg-highlight-class">InsertOne</span>(sampleDocFields);</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">test_patient <!-- -->:<!-- -->= map[string]interface{}{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"name"</span>: <span class="lg-highlight-string">"Jon Doe"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"ssn"</span>: <span class="lg-highlight-number">241014209</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"bloodType"</span>: <span class="lg-highlight-string">"AB+"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"medicalRecords"</span>: []map[string]interface{}{{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"weight"</span>: <span class="lg-highlight-number">180</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"bloodPressure"</span>: <span class="lg-highlight-string">"120/80"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }},</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"insurance"</span>: map[string]interface{}{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"provider"</span>: <span class="lg-highlight-string">"MaestCare"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"policyNumber"</span>: <span class="lg-highlight-number">123142</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> },</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">if</span> _<!-- -->, <!-- -->err := secureClient.<span class="lg-highlight-title lg-highlight-class">Database</span>(dbName).<span class="lg-highlight-title lg-highlight-class">Collection</span>(collName).<span class="lg-highlight-title lg-highlight-class">InsertOne</span>(context.<span class="lg-highlight-title lg-highlight-function">TODO</span>(), test_patient); err != nil {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">return</span> fmt.<span class="lg-highlight-title lg-highlight-class">Errorf</span>(<span class="lg-highlight-string">"InsertOne error: %v"</span>, err)</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
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<h2 class="leafygreen-ui-6n7b7d">
Note
</h2>
<div class="leafygreen-ui-9mycqc">
<p class="leafygreen-ui-1kp3ins">
Rather than creating a raw BSON document, you can pass a struct with
<code class="leafygreen-ui-1l06pbn">
bson
</code>
tags directly
to the driver for encoding.
</p>
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{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"ArrayList<document> medicalRecords = new ArrayList<>();\nmedicalRecords.add(new Document().append(\"weight\", \"180\"));\nmedicalRecords.add(new Document().append(\"bloodPressure\", \"120/80\"));\n\nDocument insurance = new Document()\n.append(\"policyNumber\", 123142)\n.append(\"provider\", \"MaestCare\");\n\nDocument patient = new Document()\n .append(\"name\", \"Jon Doe\")\n .append(\"ssn\", 241014209)\n .append(\"bloodType\", \"AB+\")\n .append(\"medicalRecords\", medicalRecords)\n .append(\"insurance\", insurance);\nmongoClientSecure.getDatabase(recordsDb).getCollection(recordsColl).insertOne(patient);","programmingLanguage":"Java"}
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<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-9lvdmr">
<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">ArrayList</span><<span class="lg-highlight-title lg-highlight-class">Document</span>> medicalRecords = <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">ArrayList</span><>();</td></tr><tr class=""><td class="leafygreen-ui-7razhx">medicalRecords.<span class="lg-highlight-title lg-highlight-function">add</span>(<span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Document</span>().<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"weight"</span>, <span class="lg-highlight-string">"180"</span>));</td></tr><tr class=""><td class="leafygreen-ui-7razhx">medicalRecords.<span class="lg-highlight-title lg-highlight-function">add</span>(<span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Document</span>().<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"bloodPressure"</span>, <span class="lg-highlight-string">"120/80"</span>));</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">Document</span> insurance = <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Document</span>()</td></tr><tr class=""><td class="leafygreen-ui-7razhx">.<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"policyNumber"</span>, <span class="lg-highlight-number">123142</span>)</td></tr><tr class=""><td class="leafygreen-ui-7razhx">.<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"provider"</span>, <span class="lg-highlight-string">"MaestCare"</span>);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">Document</span> patient = <span class="lg-highlight-keyword">new</span> <span class="lg-highlight-title lg-highlight-class">Document</span>()</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"name"</span>, <span class="lg-highlight-string">"Jon Doe"</span>)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"ssn"</span>, <span class="lg-highlight-number">241014209</span>)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"bloodType"</span>, <span class="lg-highlight-string">"AB+"</span>)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"medicalRecords"</span>, medicalRecords)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">append</span>(<span class="lg-highlight-string">"insurance"</span>, insurance);</td></tr><tr class=""><td class="leafygreen-ui-7razhx">mongoClientSecure.<span class="lg-highlight-title lg-highlight-function">getDatabase</span>(recordsDb).<span class="lg-highlight-title lg-highlight-function">getCollection</span>(recordsColl).<span class="lg-highlight-title lg-highlight-function">insertOne</span>(patient);</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">try</span> <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">const</span> writeResult <!-- -->= <span class="lg-highlight-keyword">await</span> secureClient</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">db</span>(<!-- -->db)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">collection</span>(<!-- -->coll)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> .<span class="lg-highlight-title lg-highlight-function">insertOne</span>(<!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-string">"Jon Doe"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">ssn</span>: <span class="lg-highlight-number">241014209</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">bloodType</span>: <span class="lg-highlight-string">"AB+"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">medicalRecords</span>: <!-- -->[<!-- -->{ <span class="lg-highlight-attr">weight</span>: <span class="lg-highlight-number">180</span>, <span class="lg-highlight-attr">bloodPressure</span>: <span class="lg-highlight-string">"120/80"</span> }]<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">insurance</span>: <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">policyNumber</span>: <span class="lg-highlight-number">123142</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">provider</span>: <span class="lg-highlight-string">"MaestCare"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->}<!-- -->,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <!-- -->})<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">} <span class="lg-highlight-keyword">catch</span> <!-- -->(<!-- -->writeError) <!-- -->{</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-variable lg-highlight-language">console</span>.<span class="lg-highlight-title lg-highlight-function">error</span>(<span class="lg-highlight-string">"writeError occurred:"</span>, <!-- -->writeError)<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">def <span class="lg-highlight-title lg-highlight-function">insert_patient</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> collection, name, ssn, blood_type, medical_records, policy_number, provider</td></tr><tr class=""><td class="leafygreen-ui-7razhx">):<!-- --></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> insurance = {<span class="lg-highlight-string">"policyNumber"</span>: policy_number, <span class="lg-highlight-string">"provider"</span>: provider}</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> doc = {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"name"</span>: name,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"ssn"</span>: ssn,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"bloodType"</span>: blood_type,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"medicalRecords"</span>: medical_records,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"insurance"</span>: insurance,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> }</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> collection.<span class="lg-highlight-title lg-highlight-function">insert_one</span>(doc)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">medical_record = [{<span class="lg-highlight-string">"weight"</span>: <span class="lg-highlight-number">180</span>, <span class="lg-highlight-string">"bloodPressure"</span>: <span class="lg-highlight-string">"120/80"</span>}]</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">insert_patient</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> secureClient.<span class="lg-highlight-property">medicalRecords</span>.<span class="lg-highlight-property">patients</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"Jon Doe"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-number">241014209</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"AB+"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> medical_record,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-number">123142</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-string">"MaestCare"</span>,</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)</td></tr></tbody></table></code></pre>
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<p class="leafygreen-ui-1kp3ins">
When you insert a document, your CSFLE-enabled client
encrypts the fields of your document such that it resembles the following:
</p>
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<div class="leafygreen-ui-1jheeh3">
<pre class="leafygreen-ui-1453az5" tabindex="-1"><code class="lg-highlight-hljs-light json leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-punctuation">{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"_id"</span><span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-punctuation">{</span> <span class="lg-highlight-attr">"$oid"</span><span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"<_id of your document>"</span> <span class="lg-highlight-punctuation">}</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"name"</span><span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"Jon Doe"</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"ssn"</span><span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-punctuation">{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"$binary"</span><span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"<cipher-text>"</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"$type"</span><span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"6"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-punctuation">}</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"bloodType"</span><span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-punctuation">{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"$binary"</span><span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"<cipher-text>"</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"$type"</span><span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"6"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-punctuation">}</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"medicalRecords"</span><span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-punctuation">{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"$binary"</span><span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"<cipher-text>"</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"$type"</span><span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"6"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-punctuation">}</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"insurance"</span><span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-punctuation">{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"provider"</span><span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"MaestCare"</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"policyNumber"</span><span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-punctuation">{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"$binary"</span><span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"<cipher-text>"</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-attr">"$type"</span><span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-string">"6"</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-punctuation">}</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-punctuation">}</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-punctuation">}</span></td></tr></tbody></table></code></pre>
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<h2 class="leafygreen-ui-1fn4p2b">
Tip
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<strong>
See: Complete Code
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To view the complete code for inserting a document with encrypted fields, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://github.com/mongodb/docs/tree/master/source/includes/generated/in-use-encryption/csfle/dotnet/azure/reader/CSFLE/InsertEncryptedDocument.cs" rel="noopener noreferrer">
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To view the complete code for inserting a document with encrypted fields, see
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To view the complete code for inserting a document with encrypted fields, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://github.com/mongodb/docs/tree/master/source/includes/generated/in-use-encryption/csfle/java/azure/reader/src/main/java/com/mongodb/csfle/InsertEncryptedDocument.java" rel="noopener noreferrer">
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To view the complete code for inserting a document with encrypted fields, see
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To view the complete code for inserting a document with encrypted fields, see
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our Github repository
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5
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<div class="css-1ed38mk">
<section>
<h3 class="contains-headerlink leafygreen-ui-15ajumo" weight="medium">
Retrieve Your Document with Encrypted Fields
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<p class="leafygreen-ui-1kp3ins">
Retrieve the document with encrypted fields you inserted in the
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="#std-label-csfle-azure-insert" target="_self">
<span>
Insert a Document with Encrypted Fields
</span>
</a>
step of this guide.
</p>
<p class="leafygreen-ui-1kp3ins">
To show the functionality of CSFLE, the following code snippet queries for
your document with a client configured for automatic CSFLE as well as
a client that is not configured for automatic CSFLE.
</p>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">Console</span>.<span class="lg-highlight-title lg-highlight-class">WriteLine</span>(<span class="lg-highlight-string">"Finding a document with regular (non-encrypted) client."</span>);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> filter = <span class="lg-highlight-title lg-highlight-class">Builders</span><<span class="lg-highlight-title lg-highlight-class">BsonDocument</span>>.<span class="lg-highlight-property">Filter</span>.<span class="lg-highlight-title lg-highlight-class">Eq</span>(<span class="lg-highlight-string">"name"</span>, <span class="lg-highlight-string">"Jon Doe"</span>);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> regularResult = regularCollection.<span class="lg-highlight-title lg-highlight-class">Find</span>(filter).<span class="lg-highlight-title lg-highlight-class">Limit</span>(<span class="lg-highlight-number">1</span>).<span class="lg-highlight-title lg-highlight-class">ToList</span>()[<span class="lg-highlight-number">0</span>];</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">Console</span>.<span class="lg-highlight-title lg-highlight-class">WriteLine</span>($<span class="lg-highlight-string">"</span><span class="lg-highlight-string">\n</span><span class="lg-highlight-string">{regularResult}</span><span class="lg-highlight-string">\n</span><span class="lg-highlight-string">"</span>);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">Console</span>.<span class="lg-highlight-title lg-highlight-class">WriteLine</span>(<span class="lg-highlight-string">"Finding a document with encrypted client"</span>);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> ssnFilter = <span class="lg-highlight-title lg-highlight-class">Builders</span><<span class="lg-highlight-title lg-highlight-class">BsonDocument</span>>.<span class="lg-highlight-property">Filter</span>.<span class="lg-highlight-title lg-highlight-class">Eq</span>(<span class="lg-highlight-string">"name"</span>, <span class="lg-highlight-string">"Jon Doe"</span>);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> secureResult = secureCollection.<span class="lg-highlight-title lg-highlight-class">Find</span>(ssnFilter).<span class="lg-highlight-title lg-highlight-class">Limit</span>(<span class="lg-highlight-number">1</span>).<span class="lg-highlight-title lg-highlight-class">First</span>();</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">Console</span>.<span class="lg-highlight-title lg-highlight-class">WriteLine</span>($<span class="lg-highlight-string">"</span><span class="lg-highlight-string">\n</span><span class="lg-highlight-string">{secureResult}</span><span class="lg-highlight-string">\n</span><span class="lg-highlight-string">"</span>);</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">fmt.<span class="lg-highlight-title lg-highlight-class">Println</span>(<span class="lg-highlight-string">"Finding a document with regular (non-encrypted) client."</span>)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> resultRegular bson.<span class="lg-highlight-property">M</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">err = regularClient.<span class="lg-highlight-title lg-highlight-class">Database</span>(dbName).<span class="lg-highlight-title lg-highlight-class">Collection</span>(collName).<span class="lg-highlight-title lg-highlight-class">FindOne</span>(context.<span class="lg-highlight-title lg-highlight-function">TODO</span>(), bson.<span class="lg-highlight-property">D</span>{{<span class="lg-highlight-string">"name"</span>, <span class="lg-highlight-string">"Jon Doe"</span>}}).<span class="lg-highlight-title lg-highlight-class">Decode</span>(&resultRegular)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">if</span> err != nil {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-function">panic</span>(err)</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr><tr class=""><td class="leafygreen-ui-7razhx">outputRegular<!-- -->, <!-- -->err := json.<span class="lg-highlight-title lg-highlight-class">MarshalIndent</span>(resultRegular, <span class="lg-highlight-string">""</span>, <span class="lg-highlight-string">" "</span>)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">if</span> err != nil {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-function">panic</span>(err)</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr><tr class=""><td class="leafygreen-ui-7razhx">fmt.<span class="lg-highlight-title lg-highlight-class">Printf</span>(<span class="lg-highlight-string">"%s</span><span class="lg-highlight-string">\n</span><span class="lg-highlight-string">"</span>, outputRegular)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">fmt.<span class="lg-highlight-title lg-highlight-class">Println</span>(<span class="lg-highlight-string">"Finding a document with encrypted client"</span>)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">var</span> resultSecure bson.<span class="lg-highlight-property">M</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx">err = secureClient.<span class="lg-highlight-title lg-highlight-class">Database</span>(dbName).<span class="lg-highlight-title lg-highlight-class">Collection</span>(collName).<span class="lg-highlight-title lg-highlight-class">FindOne</span>(context.<span class="lg-highlight-title lg-highlight-function">TODO</span>(), bson.<span class="lg-highlight-property">D</span>{{<span class="lg-highlight-string">"name"</span>, <span class="lg-highlight-string">"Jon Doe"</span>}}).<span class="lg-highlight-title lg-highlight-class">Decode</span>(&resultSecure)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">if</span> err != nil {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-function">panic</span>(err)</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr><tr class=""><td class="leafygreen-ui-7razhx">outputSecure<!-- -->, <!-- -->err := json.<span class="lg-highlight-title lg-highlight-class">MarshalIndent</span>(resultSecure, <span class="lg-highlight-string">""</span>, <span class="lg-highlight-string">" "</span>)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-keyword">if</span> err != nil {</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-title lg-highlight-function">panic</span>(err)</td></tr><tr class=""><td class="leafygreen-ui-7razhx">}</td></tr><tr class=""><td class="leafygreen-ui-7razhx">fmt.<span class="lg-highlight-title lg-highlight-class">Printf</span>(<span class="lg-highlight-string">"%s</span><span class="lg-highlight-string">\n</span><span class="lg-highlight-string">"</span>, outputSecure)</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">System</span>.<span class="lg-highlight-property">out</span>.<span class="lg-highlight-title lg-highlight-function">println</span>(<span class="lg-highlight-string">"Finding a document with regular (non-encrypted) client."</span>);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">Document</span> docRegular = mongoClientRegular.<span class="lg-highlight-title lg-highlight-function">getDatabase</span>(recordsDb).<span class="lg-highlight-title lg-highlight-function">getCollection</span>(recordsColl).<span class="lg-highlight-title lg-highlight-function">find</span>(<span class="lg-highlight-title lg-highlight-function">eq</span>(<span class="lg-highlight-string">"name"</span>, <span class="lg-highlight-string">"Jon Doe"</span>)).<span class="lg-highlight-title lg-highlight-function">first</span>();</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">System</span>.<span class="lg-highlight-property">out</span>.<span class="lg-highlight-title lg-highlight-function">println</span>(docRegular.<span class="lg-highlight-title lg-highlight-function">toJson</span>());</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">System</span>.<span class="lg-highlight-property">out</span>.<span class="lg-highlight-title lg-highlight-function">println</span>(<span class="lg-highlight-string">"Finding a document with encrypted client"</span>);</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">Document</span> docSecure = mongoClientSecure.<span class="lg-highlight-title lg-highlight-function">getDatabase</span>(recordsDb).<span class="lg-highlight-title lg-highlight-function">getCollection</span>(recordsColl).<span class="lg-highlight-title lg-highlight-function">find</span>(<span class="lg-highlight-title lg-highlight-function">eq</span>(<span class="lg-highlight-string">"name"</span>, <span class="lg-highlight-string">"Jon Doe"</span>)).<span class="lg-highlight-title lg-highlight-function">first</span>();</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-class">System</span>.<span class="lg-highlight-property">out</span>.<span class="lg-highlight-title lg-highlight-function">println</span>(docSecure.<span class="lg-highlight-title lg-highlight-function">toJson</span>());</td></tr></tbody></table></code></pre>
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-variable lg-highlight-language">console</span>.<span class="lg-highlight-title lg-highlight-function">log</span>(<span class="lg-highlight-string">"Finding a document with regular (non-encrypted) client."</span>)<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-variable lg-highlight-language">console</span>.<span class="lg-highlight-title lg-highlight-function">log</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">await</span> regularClient.<span class="lg-highlight-title lg-highlight-function">db</span>(<!-- -->db).<span class="lg-highlight-title lg-highlight-function">collection</span>(<!-- -->coll).<span class="lg-highlight-title lg-highlight-function">findOne</span>(<!-- -->{ <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-regexp">/Jon/</span> <!-- -->})</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-variable lg-highlight-language">console</span>.<span class="lg-highlight-title lg-highlight-function">log</span>(<span class="lg-highlight-string">"Finding a document with encrypted client"</span>)<!-- -->;</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-variable lg-highlight-language">console</span>.<span class="lg-highlight-title lg-highlight-function">log</span>(</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-keyword">await</span> secureClient.<span class="lg-highlight-title lg-highlight-function">db</span>(<!-- -->db).<span class="lg-highlight-title lg-highlight-function">collection</span>(<!-- -->coll).<span class="lg-highlight-title lg-highlight-function">findOne</span>(<!-- -->{ <span class="lg-highlight-attr">name</span>: <span class="lg-highlight-regexp">/Jon/</span> <!-- -->})</td></tr><tr class=""><td class="leafygreen-ui-7razhx">)<!-- -->;</td></tr></tbody></table></code></pre>
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{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"print(\"Finding a document with regular (non-encrypted) client.\")\nresult = regularClient.medicalRecords.patients.find_one({\"name\": \"Jon Doe\"})\npprint.pprint(result)\n\nprint(\"Finding a document with encrypted client\")\npprint.pprint(secureClient.medicalRecords.patients.find_one({\"name\": \"Jon Doe\"}))","programmingLanguage":"Python"}
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<pre class="leafygreen-ui-11itue3" tabindex="-1"><code class="lg-highlight-hljs-light javascript leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">print</span>(<span class="lg-highlight-string">"Finding a document with regular (non-encrypted) client."</span>)</td></tr><tr class=""><td class="leafygreen-ui-7razhx">result = regularClient.<span class="lg-highlight-property">medicalRecords</span>.<span class="lg-highlight-property">patients</span>.<span class="lg-highlight-title lg-highlight-function">find_one</span>({<span class="lg-highlight-string">"name"</span>: <span class="lg-highlight-string">"Jon Doe"</span>})</td></tr><tr class=""><td class="leafygreen-ui-7razhx">pprint.<span class="lg-highlight-title lg-highlight-function">pprint</span>(result)</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-title lg-highlight-function">print</span>(<span class="lg-highlight-string">"Finding a document with encrypted client"</span>)</td></tr><tr class=""><td class="leafygreen-ui-7razhx">pprint.<span class="lg-highlight-title lg-highlight-function">pprint</span>(secureClient.<span class="lg-highlight-property">medicalRecords</span>.<span class="lg-highlight-property">patients</span>.<span class="lg-highlight-title lg-highlight-function">find_one</span>({<span class="lg-highlight-string">"name"</span>: <span class="lg-highlight-string">"Jon Doe"</span>}))</td></tr></tbody></table></code></pre>
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Node.js
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<p class="leafygreen-ui-1kp3ins">
The output of the preceding code snippet should look like this:
</p>
<script class="structured_data" type="application/ld+json">
{"@context":"https://schema.org","@type":"SoftwareSourceCode","codeSampleType":"code snippet","text":"Finding a document with regular (non-encrypted) client.\n\n{\n _id: new ObjectId(\"629a452e0861b3130887103a\"),\n name: 'Jon Doe',\n ssn: new Binary(Buffer.from(\"0217482732d8014cdd9ffdd6e2966e5e7910c20697e5f4fa95710aafc9153f0a3dc769c8a132a604b468732ff1f4d8349ded3244b59cbfb41444a210f28b21ea1b6c737508d9d30e8baa30c1d8070c4d5e26\", \"hex\"), 6),\n bloodType: new Binary(Buffer.from(\"0217482732d8014cdd9ffdd6e2966e5e79022e238536dfd8caadb4d7751ac940e0f195addd7e5c67b61022d02faa90283ab69e02303c7e4001d1996128428bf037dea8bbf59fbb20c583cbcff2bf3e2519b4\", \"hex\"), 6),\n 'key-id': 'demo-data-key',\n medicalRecords: new Binary(Buffer.from(\"0217482732d8014cdd9ffdd6e2966e5e790405163a3207cff175455106f57eef14e5610c49a99bcbd14a7db9c5284e45e3ee30c149354015f941440bf54725d6492fb3b8704bc7c411cff6c868e4e13c58233c3d5ed9593eca4e4d027d76d3705b6d1f3b3c9e2ceee195fd944b553eb27eee69e5e67c338f146f8445995664980bf0\", \"hex\"), 6),\n insurance: {\n policyNumber: new Binary(Buffer.from(\"0217482732d8014cdd9ffdd6e2966e5e79108decd85c05be3fec099e015f9d26d9234605dc959cc1a19b63072f7ffda99db38c7b487de0572a03b2139ac3ee163bcc40c8508f366ce92a5dd36e38b3c742f7\", \"hex\"), 6),\n provider: 'MaestCare'\n }\n}\n\nFinding a document with encrypted client\n\n{\n _id: new ObjectId(\"629a452e0861b3130887103a\"),\n name: 'Jon Doe',\n ssn: 241014209,\n bloodType: 'AB+',\n 'key-id': 'demo-data-key',\n medicalRecords: [ { weight: 180, bloodPressure: '120/80' } ],\n insurance: { policyNumber: 123142, provider: 'MaestCare' }\n}\n","programmingLanguage":"JSON"}
</script>
<div class="css-1lju8ps">
<div class="leafygreen-ui-196mwvg">
<div class="leafygreen-ui-tyg50d">
<pre class="leafygreen-ui-1453az5" tabindex="0"><code class="lg-highlight-hljs-light json leafygreen-ui-9ybzas"><table class="leafygreen-ui-1tr4g10"><tbody><tr class=""><td class="leafygreen-ui-7razhx">Finding a document with regular (non-encrypted) client.</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-punctuation">{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> _id<span class="lg-highlight-punctuation">:</span> new ObjectId(<span class="lg-highlight-string">"629a452e0861b3130887103a"</span>)<span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> name<span class="lg-highlight-punctuation">:</span> 'Jon Doe'<span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ssn<span class="lg-highlight-punctuation">:</span> new Binary(Buffer.from(<span class="lg-highlight-string">"0217482732d8014cdd9ffdd6e2966e5e7910c20697e5f4fa95710aafc9153f0a3dc769c8a132a604b468732ff1f4d8349ded3244b59cbfb41444a210f28b21ea1b6c737508d9d30e8baa30c1d8070c4d5e26"</span><span class="lg-highlight-punctuation">,</span> <span class="lg-highlight-string">"hex"</span>)<span class="lg-highlight-punctuation">,</span> <span class="lg-highlight-number">6</span>)<span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> bloodType<span class="lg-highlight-punctuation">:</span> new Binary(Buffer.from(<span class="lg-highlight-string">"0217482732d8014cdd9ffdd6e2966e5e79022e238536dfd8caadb4d7751ac940e0f195addd7e5c67b61022d02faa90283ab69e02303c7e4001d1996128428bf037dea8bbf59fbb20c583cbcff2bf3e2519b4"</span><span class="lg-highlight-punctuation">,</span> <span class="lg-highlight-string">"hex"</span>)<span class="lg-highlight-punctuation">,</span> <span class="lg-highlight-number">6</span>)<span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> 'key-id'<span class="lg-highlight-punctuation">:</span> 'demo-data-key'<span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> medicalRecords<span class="lg-highlight-punctuation">:</span> new Binary(Buffer.from(<span class="lg-highlight-string">"0217482732d8014cdd9ffdd6e2966e5e790405163a3207cff175455106f57eef14e5610c49a99bcbd14a7db9c5284e45e3ee30c149354015f941440bf54725d6492fb3b8704bc7c411cff6c868e4e13c58233c3d5ed9593eca4e4d027d76d3705b6d1f3b3c9e2ceee195fd944b553eb27eee69e5e67c338f146f8445995664980bf0"</span><span class="lg-highlight-punctuation">,</span> <span class="lg-highlight-string">"hex"</span>)<span class="lg-highlight-punctuation">,</span> <span class="lg-highlight-number">6</span>)<span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> insurance<span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-punctuation">{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> policyNumber<span class="lg-highlight-punctuation">:</span> new Binary(Buffer.from(<span class="lg-highlight-string">"0217482732d8014cdd9ffdd6e2966e5e79108decd85c05be3fec099e015f9d26d9234605dc959cc1a19b63072f7ffda99db38c7b487de0572a03b2139ac3ee163bcc40c8508f366ce92a5dd36e38b3c742f7"</span><span class="lg-highlight-punctuation">,</span> <span class="lg-highlight-string">"hex"</span>)<span class="lg-highlight-punctuation">,</span> <span class="lg-highlight-number">6</span>)<span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> provider<span class="lg-highlight-punctuation">:</span> 'MaestCare'</td></tr><tr class=""><td class="leafygreen-ui-7razhx"> <span class="lg-highlight-punctuation">}</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-punctuation">}</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx">Finding a document with encrypted client</td></tr><tr class=""><td class="leafygreen-ui-7razhx"><div class="leafygreen-ui-ihxujy"></div></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-punctuation">{</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> _id<span class="lg-highlight-punctuation">:</span> new ObjectId(<span class="lg-highlight-string">"629a452e0861b3130887103a"</span>)<span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> name<span class="lg-highlight-punctuation">:</span> 'Jon Doe'<span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> ssn<span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-number">241014209</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> bloodType<span class="lg-highlight-punctuation">:</span> 'AB+'<span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> 'key-id'<span class="lg-highlight-punctuation">:</span> 'demo-data-key'<span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> medicalRecords<span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-punctuation">[</span> <span class="lg-highlight-punctuation">{</span> weight<span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-number">180</span><span class="lg-highlight-punctuation">,</span> bloodPressure<span class="lg-highlight-punctuation">:</span> '<span class="lg-highlight-number">120</span>/<span class="lg-highlight-number">80</span>' <span class="lg-highlight-punctuation">}</span> <span class="lg-highlight-punctuation">]</span><span class="lg-highlight-punctuation">,</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"> insurance<span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-punctuation">{</span> policyNumber<span class="lg-highlight-punctuation">:</span> <span class="lg-highlight-number">123142</span><span class="lg-highlight-punctuation">,</span> provider<span class="lg-highlight-punctuation">:</span> 'MaestCare' <span class="lg-highlight-punctuation">}</span></td></tr><tr class=""><td class="leafygreen-ui-7razhx"><span class="lg-highlight-punctuation">}</span></td></tr></tbody></table></code></pre>
</div>
</div>
</div>
<div class="leafygreen-ui-13vw3ie" role="note">
<h2 class="leafygreen-ui-1fn4p2b">
Tip
</h2>
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To view the complete code for finding a document with encrypted fields, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://github.com/mongodb/docs/tree/master/source/includes/generated/in-use-encryption/csfle/dotnet/azure/reader/CSFLE/InsertEncryptedDocument.cs" rel="noopener noreferrer">
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our Github repository
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To view the complete code for finding a document with encrypted fields, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://github.com/mongodb/docs/tree/master/source/includes/generated/in-use-encryption/csfle/go/azure/reader/insert-encrypted-document.go" rel="noopener noreferrer">
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our Github repository
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<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
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To view the complete code for finding a document with encrypted fields, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://github.com/mongodb/docs/tree/master/source/includes/generated/in-use-encryption/csfle/java/azure/reader/src/main/java/com/mongodb/csfle/InsertEncryptedDocument.java" rel="noopener noreferrer">
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our Github repository
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.
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<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
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To view the complete code for finding a document with encrypted fields, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://github.com/mongodb/docs/tree/master/source/includes/generated/in-use-encryption/csfle/node/azure/reader/insert_encrypted_document.js" rel="noopener noreferrer">
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our Github repository
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.
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<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
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<path d="M7.25 3.12893C7.66421 3.12893 8 3.46472 8 3.87893C8 4.29315 7.66421 4.62893 7.25 4.62893H4C3.72386 4.62893 3.5 4.85279 3.5 5.12893V11.9929C3.5 12.2691 3.72386 12.4929 4 12.4929H10.864C11.1401 12.4929 11.364 12.2691 11.364 11.9929V8.75C11.364 8.33579 11.6998 8 12.114 8C12.5282 8 12.864 8.33579 12.864 8.75V11.9929C12.864 13.0975 11.9686 13.9929 10.864 13.9929H4C2.89543 13.9929 2 13.0975 2 11.9929V5.12893C2 4.02436 2.89543 3.12893 4 3.12893H7.25Z" fill="currentColor">
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To view the complete code for finding a document with encrypted fields, see
<a class="lg-ui-0001 leafygreen-ui-fgcsv5" href="https://github.com/mongodb/docs/tree/master/source/includes/generated/in-use-encryption/csfle/python/azure/reader/insert_encrypted_document.py" rel="noopener noreferrer">
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our Github repository
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.
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<path d="M13.823 2.4491C13.8201 2.30008 13.6999 2.17994 13.5509 2.17704L9.5062 2.09836C9.25654 2.09351 9.12821 2.39519 9.30482 2.5718L10.3856 3.65257L7.93433 6.10383C7.87964 6.15852 7.83047 6.21665 7.78683 6.27752L5.99909 8.06525C5.46457 8.59977 5.46457 9.4664 5.99909 10.0009C6.53361 10.5354 7.40023 10.5354 7.93475 10.0009L9.72249 8.21317C9.78336 8.16953 9.84148 8.12037 9.89618 8.06567L12.3474 5.61441L13.4282 6.69518C13.6048 6.87179 13.9065 6.74347 13.9016 6.4938L13.823 2.4491Z" fill="currentColor">
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</div>
</div>
</section>
<section>
<h2 class="contains-headerlink leafygreen-ui-19f71ei" weight="medium">
Learn More
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</a>
</h2>
<p class="leafygreen-ui-1kp3ins">
To learn how CSFLE works, see
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/csfle/fundamentals/#std-label-csfle-fundamentals">
Fundamentals
<!-- -->
.
</a>
</p>
<p class="leafygreen-ui-1kp3ins">
To learn more about the topics mentioned in this guide, see the
following links:
</p>
<ul class="leafygreen-ui-rioki0">
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Learn more about CSFLE components on the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/csfle/reference/#std-label-csfle-reference">
Reference
</a>
page.
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
Learn how Customer Master Keys and Data Encryption Keys work on the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/queryable-encryption/fundamentals/keys-key-vaults/#std-label-qe-reference-keys-key-vaults">
Encryption Keys and Key Vaults
</a>
page
</p>
</li>
<li class="leafygreen-ui-d7p7b6">
<p class="leafygreen-ui-1kp3ins">
See how KMS Providers manage your CSFLE keys on the
<a class="leafygreen-ui-tqgtui" href="/docs/manual/core/queryable-encryption/fundamentals/kms-providers/#std-label-qe-fundamentals-kms-providers">
KMS Providers
</a>
page.
</p>
</li>
</ul>
</section>
</section>
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